From c406cf2ee1d9b130d21292b95cef0a3ab9ca8dc9 Mon Sep 17 00:00:00 2001
From: Zach Laine <whatwasthataddress@gmail.com>
Date: Sun, 14 Jan 2024 02:46:25 -0600
Subject: [PATCH] Update docs.

---
 doc/html/BOOST_PARSER_ASSERT.html             |  10 +-
 doc/html/BOOST_PARSER_DEFINE_RULE.html        |   2 +-
 doc/html/BOOST_PARSER_DEFINE_RULES.html       |   8 +-
 doc/html/BOOST_PARSER_DISA_idm18179.html      |  42 ----
 doc/html/BOOST_PARSER_DISA_idm18181.html      |  42 ----
 doc/html/BOOST_PARSER_DISA_idm18182.html      |  42 ----
 doc/html/BOOST_PARSER_DISA_idm18183.html      |  42 ----
 doc/html/BOOST_PARSER_DISA_idm18186.html      |  42 ----
 doc/html/BOOST_PARSER_DISA_idm18187.html      |  42 ----
 doc/html/BOOST_PARSER_DISA_idm18199.html      |  42 ----
 doc/html/BOOST_PARSER_DISA_idm18203.html      |  42 ----
 ...7.html => BOOST_PARSER_DISA_idm18469.html} |  10 +-
 ...5.html => BOOST_PARSER_DISA_idm18473.html} |  12 +-
 doc/html/BOOST_PARSER_MAX__idm18188.html      |  42 ----
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 ...6.html => BOOST_PARSER_MAX__idm18478.html} |  10 +-
 doc/html/BOOST_PARSER_NO_R_idm18167.html      |  42 ----
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 ...5.html => BOOST_PARSER_NO_R_idm18457.html} |   4 +-
 doc/html/BOOST_PARSER_USE_CONCEPTS.html       |   8 +-
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 doc/html/BOOST_PARSER_USE__idm18192.html      |  38 ----
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 doc/html/boost/parser/_val.html               |   2 +-
 doc/html/boost/parser/_where.html             |   2 +-
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 doc/html/boost/parser/ascii/alnum.html        |   2 +-
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 doc/html/boost/parser/ascii/cntrl.html        |   2 +-
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 doc/html/boost/parser/ascii/graph.html        |   2 +-
 doc/html/boost/parser/ascii/lower.html        |   2 +-
 doc/html/boost/parser/ascii/print.html        |   2 +-
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 doc/html/boost/parser/ascii/xdigit.html       |   2 +-
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 ...2700.html => callback_parse_idm23049.html} |  12 +-
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 doc/html/boost/parser/callback_rule.html      |  18 +-
 doc/html/boost/parser/char_.html              |   2 +-
 doc/html/boost/parser/char_parser.html        |  38 ++--
 doc/html/boost/parser/container.html          |   6 +-
 doc/html/boost/parser/cp.html                 |   2 +-
 doc/html/boost/parser/cu.html                 |   2 +-
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 .../boost/parser/delimited_seq_parser.html    |   8 +-
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 doc/html/boost/parser/eoi.html                |   2 +-
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 .../boost/parser/error_handler_result.html    |   2 +-
 doc/html/boost/parser/expect_parser.html      |  16 +-
 doc/html/boost/parser/find_line_end.html      |   2 +-
 doc/html/boost/parser/find_line_position.html |   8 +-
 doc/html/boost/parser/float_.html             |   2 +-
 doc/html/boost/parser/float_parser.html       |  22 +-
 doc/html/boost/parser/get.html                |   2 +-
 doc/html/boost/parser/hex.html                |   2 +-
 doc/html/boost/parser/if_.html                |   8 +-
 doc/html/boost/parser/if_directive.html       |  12 +-
 doc/html/boost/parser/int_.html               |   2 +-
 doc/html/boost/parser/int_parser.html         |  30 +--
 doc/html/boost/parser/integral_constant.html  |   2 +-
 doc/html/boost/parser/lexeme.html             |   4 +-
 doc/html/boost/parser/lexeme_parser.html      |  22 +-
 doc/html/boost/parser/line_position.html      |   2 +-
 doc/html/boost/parser/lit_idm22143.html       |  43 ----
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 doc/html/boost/parser/lit_idm22182.html       |  43 ----
 doc/html/boost/parser/lit_idm22198.html       |  43 ----
 .../{lit_idm22148.html => lit_idm22492.html}  |  10 +-
 .../{lit_idm22151.html => lit_idm22498.html}  |  12 +-
 .../{lit_idm22157.html => lit_idm22504.html}  |  10 +-
 .../{lit_idm22176.html => lit_idm22525.html}  |   4 +-
 .../parser/literals/operator_c_idm23018.html  |  43 ----
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 ...idm23016.html => operator_c_idm23370.html} |   4 +-
 .../parser/literals/operator_l_idm21531.html  |  43 ----
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 .../parser/literals/operator_l_idm21590.html  |  43 ----
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 .../parser/literals/operator_p_idm21638.html  |  43 ----
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 doc/html/boost/parser/llong.html              |   2 +-
 doc/html/boost/parser/long_.html              |   2 +-
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 doc/html/boost/parser/make_subrange.html      |   2 +-
 doc/html/boost/parser/merge.html              |  42 ++++
 doc/html/boost/parser/merge_directive.html    |  58 +++++
 doc/html/boost/parser/no_case.html            |   4 +-
 doc/html/boost/parser/no_case_parser.html     |  22 +-
 doc/html/boost/parser/none.html               | 198 +++++++++---------
 doc/html/boost/parser/null_sentinel_t.html    |   8 +-
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 doc/html/boost/parser/operator%_idm22416.html |  45 ----
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 ..._idm22394.html => operator%_idm22743.html} |  12 +-
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 ..._idm22355.html => operator-_idm22704.html} |  12 +-
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-<link rel="next" href="BOOST_PARSER_DISA_idm18199.html" title="Macro BOOST_PARSER_DISABLE_CONCEPTS">
+<link rel="prev" href="BOOST_PARSER_NO_R_idm18457.html" title="Macro BOOST_PARSER_NO_RUNTIME_ASSERTIONS">
+<link rel="next" href="BOOST_PARSER_DISA_idm18469.html" title="Macro BOOST_PARSER_DISABLE_CONCEPTS">
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 <p>Asserts that the given condition is true. If <code class="computeroutput">BOOST_PARSER_NO_RUNTIME_ASSERTIONS</code> macro is defined by the user, <code class="computeroutput">BOOST_PARSER_ASSERT</code> expends to a compile-time <code class="computeroutput">static_assert()</code>. Otherwise, it expands to a run-time <code class="computeroutput">BOOST_ASSERT()</code>. </p>
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 <p>Defines a pair of <code class="computeroutput">parse_rule()</code> overloads for the given rule, used internally within Boost.Parser. The pair implements the parsing behavior rule <code class="computeroutput">rule</code>, using the parser <code class="computeroutput">rule_def</code>. </p>
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+<a accesskey="p" href="boost/parser/callback_parse_idm23130.html"><img src="images/prev.png" alt="Prev"></a><a accesskey="u" href="header/boost/parser/parser_hpp.html"><img src="images/up.png" alt="Up"></a><a accesskey="h" href="index.html"><img src="images/home.png" alt="Home"></a><a accesskey="n" href="BOOST_PARSER_DEFINE_RULE.html"><img src="images/next.png" alt="Next"></a>
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+<a name="idm36257"></a><h2>Description</h2>
 <p>For each given token <code class="computeroutput">t</code>, defines a pair of <code class="computeroutput">parse_rule()</code> overloads, used internally within Boost.Parser. Each such pair implements the parsing behavior rule <code class="computeroutput">t</code>, using the parser <code class="computeroutput">t_def</code>. This macro is only available when the Boost.Preprocessor headers are available. </p>
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+<a accesskey="p" href="boost/parser/callback_parse_idm23130.html"><img src="images/prev.png" alt="Prev"></a><a accesskey="u" href="header/boost/parser/parser_hpp.html"><img src="images/up.png" alt="Up"></a><a accesskey="h" href="index.html"><img src="images/home.png" alt="Home"></a><a accesskey="n" href="BOOST_PARSER_DEFINE_RULE.html"><img src="images/next.png" alt="Next"></a>
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-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="header/boost/parser/config_hpp.html" title="Header &lt;boost/parser/config.hpp&gt;">boost/parser/config.hpp</a>&gt;
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-</span>BOOST_PARSER_DISABLE_CONCEPTS</pre></div>
-<div class="refsect1">
-<a name="idm17233"></a><h2>Description</h2>
-<p>Boost.Parser will automatically use concepts to constrain templates when building in C++20 mode, if the compiler defines <code class="computeroutput">__cpp_lib_concepts</code>. To disable the use of concepts, define this macro. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<p>BOOST_PARSER_DISABLE_CONCEPTS</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="header/boost/parser/config_hpp.html" title="Header &lt;boost/parser/config.hpp&gt;">boost/parser/config.hpp</a>&gt;
-
-</span>BOOST_PARSER_DISABLE_CONCEPTS</pre></div>
-<div class="refsect1">
-<a name="idm17235"></a><h2>Description</h2>
-<p>Boost.Parser will automatically use concepts to constrain templates when building in C++20 mode, if the compiler defines <code class="computeroutput">__cpp_lib_concepts</code>. To disable the use of concepts, define this macro. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<p>BOOST_PARSER_DISABLE_CONCEPTS</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="header/boost/parser/config_hpp.html" title="Header &lt;boost/parser/config.hpp&gt;">boost/parser/config.hpp</a>&gt;
-
-</span>BOOST_PARSER_DISABLE_CONCEPTS</pre></div>
-<div class="refsect1">
-<a name="idm17236"></a><h2>Description</h2>
-<p>Boost.Parser will automatically use concepts to constrain templates when building in C++20 mode, if the compiler defines <code class="computeroutput">__cpp_lib_concepts</code>. To disable the use of concepts, define this macro. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<p>BOOST_PARSER_DISABLE_CONCEPTS</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="header/boost/parser/config_hpp.html" title="Header &lt;boost/parser/config.hpp&gt;">boost/parser/config.hpp</a>&gt;
-
-</span>BOOST_PARSER_DISABLE_CONCEPTS</pre></div>
-<div class="refsect1">
-<a name="idm17236"></a><h2>Description</h2>
-<p>Boost.Parser will automatically use concepts to constrain templates when building in C++20 mode, if the compiler defines <code class="computeroutput">__cpp_lib_concepts</code>. To disable the use of concepts, define this macro. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<p>BOOST_PARSER_DISABLE_HANA_TUPLE</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="header/boost/parser/config_hpp.html" title="Header &lt;boost/parser/config.hpp&gt;">boost/parser/config.hpp</a>&gt;
-
-</span>BOOST_PARSER_DISABLE_HANA_TUPLE</pre></div>
-<div class="refsect1">
-<a name="idm17251"></a><h2>Description</h2>
-<p>Define this macro to use <code class="computeroutput">std::tuple</code> instead of <code class="computeroutput">boost::hana::tuple</code> throughout Boost.Parser. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<p>BOOST_PARSER_DISABLE_HANA_TUPLE</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="header/boost/parser/config_hpp.html" title="Header &lt;boost/parser/config.hpp&gt;">boost/parser/config.hpp</a>&gt;
-
-</span>BOOST_PARSER_DISABLE_HANA_TUPLE</pre></div>
-<div class="refsect1">
-<a name="idm17251"></a><h2>Description</h2>
-<p>Define this macro to use <code class="computeroutput">std::tuple</code> instead of <code class="computeroutput">boost::hana::tuple</code> throughout Boost.Parser. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<p>BOOST_PARSER_DISABLE_CONCEPTS</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="header/boost/parser/config_hpp.html" title="Header &lt;boost/parser/config.hpp&gt;">boost/parser/config.hpp</a>&gt;
-
-</span>BOOST_PARSER_DISABLE_CONCEPTS</pre></div>
-<div class="refsect1">
-<a name="idm17252"></a><h2>Description</h2>
-<p>Boost.Parser will automatically use concepts to constrain templates when building in C++20 mode, if the compiler defines <code class="computeroutput">__cpp_lib_concepts</code>. To disable the use of concepts, define this macro. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<h2 class="refsynopsisdiv-title">Synopsis</h2>
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-
-</span>BOOST_PARSER_DISABLE_HANA_TUPLE</pre></div>
-<div class="refsect1">
-<a name="idm17267"></a><h2>Description</h2>
-<p>Define this macro to use <code class="computeroutput">std::tuple</code> instead of <code class="computeroutput">boost::hana::tuple</code> throughout Boost.Parser. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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 <div class="refsect1">
-<a name="idm17231"></a><h2>Description</h2>
+<a name="idm17478"></a><h2>Description</h2>
 <p>Boost.Parser will automatically use concepts to constrain templates when building in C++20 mode, if the compiler defines <code class="computeroutput">__cpp_lib_concepts</code>. To disable the use of concepts, define this macro. </p>
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 </span>BOOST_PARSER_DISABLE_HANA_TUPLE</pre></div>
 <div class="refsect1">
-<a name="idm17250"></a><h2>Description</h2>
+<a name="idm17493"></a><h2>Description</h2>
 <p>Define this macro to use <code class="computeroutput">std::tuple</code> instead of <code class="computeroutput">boost::hana::tuple</code> throughout Boost.Parser. </p>
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-
-</span>BOOST_PARSER_MAX_AGGREGATE_SIZE</pre></div>
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-<a name="idm17264"></a><h2>Description</h2>
-<p>Boost.Parser automatically treats aggregate structs as if they were tuples. It uses some metaprogramming to do this. The technique used has a hard limit on the number of data members a struct can have. Re-define this macro to change the hard limit. Note that large values may increase compile times. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-
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-<a name="idm17266"></a><h2>Description</h2>
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-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="header/boost/parser/config_hpp.html" title="Header &lt;boost/parser/config.hpp&gt;">boost/parser/config.hpp</a>&gt;
-
-</span>BOOST_PARSER_MAX_AGGREGATE_SIZE</pre></div>
-<div class="refsect1">
-<a name="idm17267"></a><h2>Description</h2>
-<p>Boost.Parser automatically treats aggregate structs as if they were tuples. It uses some metaprogramming to do this. The technique used has a hard limit on the number of data members a struct can have. Re-define this macro to change the hard limit. Note that large values may increase compile times. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<p>BOOST_PARSER_MAX_AGGREGATE_SIZE</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="header/boost/parser/config_hpp.html" title="Header &lt;boost/parser/config.hpp&gt;">boost/parser/config.hpp</a>&gt;
-
-</span>BOOST_PARSER_MAX_AGGREGATE_SIZE</pre></div>
-<div class="refsect1">
-<a name="idm17283"></a><h2>Description</h2>
-<p>Boost.Parser automatically treats aggregate structs as if they were tuples. It uses some metaprogramming to do this. The technique used has a hard limit on the number of data members a struct can have. Re-define this macro to change the hard limit. Note that large values may increase compile times. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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 </span>BOOST_PARSER_MAX_AGGREGATE_SIZE</pre></div>
 <div class="refsect1">
-<a name="idm17262"></a><h2>Description</h2>
+<a name="idm17509"></a><h2>Description</h2>
 <p>Boost.Parser automatically treats aggregate structs as if they were tuples. It uses some metaprogramming to do this. The technique used has a hard limit on the number of data members a struct can have. Re-define this macro to change the hard limit. Note that large values may increase compile times. </p>
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-</div>
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-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="header/boost/parser/config_hpp.html" title="Header &lt;boost/parser/config.hpp&gt;">boost/parser/config.hpp</a>&gt;
-
-</span>BOOST_PARSER_NO_RUNTIME_ASSERTIONS</pre></div>
-<div class="refsect1">
-<a name="idm17200"></a><h2>Description</h2>
-<p>Boost.Parser uses assertions (<code class="computeroutput">BOOST_ASSERT()</code>) in several places to indicate that your use of the library has an error in it. All of those places could heve instead been ill-formed code, caught at compile time. It is far quicker and easier to determine exactly where in your code such an error is located if this is a runtime failure; you can just look at the stack in your favorite debugger. However, if you want to make thes kinds of errors always ill-formed code, define this macro. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
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-
-</span>BOOST_PARSER_NO_RUNTIME_ASSERTIONS</pre></div>
-<div class="refsect1">
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-<p>Boost.Parser uses assertions (<code class="computeroutput">BOOST_ASSERT()</code>) in several places to indicate that your use of the library has an error in it. All of those places could heve instead been ill-formed code, caught at compile time. It is far quicker and easier to determine exactly where in your code such an error is located if this is a runtime failure; you can just look at the stack in your favorite debugger. However, if you want to make thes kinds of errors always ill-formed code, define this macro. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-</div>
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-
-</span>BOOST_PARSER_NO_RUNTIME_ASSERTIONS</pre></div>
-<div class="refsect1">
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-<p>Boost.Parser uses assertions (<code class="computeroutput">BOOST_ASSERT()</code>) in several places to indicate that your use of the library has an error in it. All of those places could heve instead been ill-formed code, caught at compile time. It is far quicker and easier to determine exactly where in your code such an error is located if this is a runtime failure; you can just look at the stack in your favorite debugger. However, if you want to make thes kinds of errors always ill-formed code, define this macro. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<p>Boost.Parser uses assertions (<code class="computeroutput">BOOST_ASSERT()</code>) in several places to indicate that your use of the library has an error in it. All of those places could heve instead been ill-formed code, caught at compile time. It is far quicker and easier to determine exactly where in your code such an error is located if this is a runtime failure; you can just look at the stack in your favorite debugger. However, if you want to make thes kinds of errors always ill-formed code, define this macro. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
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-
-</span>BOOST_PARSER_NO_RUNTIME_ASSERTIONS</pre></div>
-<div class="refsect1">
-<a name="idm17219"></a><h2>Description</h2>
-<p>Boost.Parser uses assertions (<code class="computeroutput">BOOST_ASSERT()</code>) in several places to indicate that your use of the library has an error in it. All of those places could heve instead been ill-formed code, caught at compile time. It is far quicker and easier to determine exactly where in your code such an error is located if this is a runtime failure; you can just look at the stack in your favorite debugger. However, if you want to make thes kinds of errors always ill-formed code, define this macro. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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 <p>Boost.Parser uses assertions (<code class="computeroutput">BOOST_ASSERT()</code>) in several places to indicate that your use of the library has an error in it. All of those places could heve instead been ill-formed code, caught at compile time. It is far quicker and easier to determine exactly where in your code such an error is located if this is a runtime failure; you can just look at the stack in your favorite debugger. However, if you want to make thes kinds of errors always ill-formed code, define this macro. </p>
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-
-</span>BOOST_PARSER_USE_CXX20_EQUALITY_AND_COMPARISON</pre></div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-
-</span>BOOST_PARSER_USE_CXX20_EQUALITY_AND_COMPARISON</pre></div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-<div class="refnamediv">
-<h2><span class="refentrytitle">Macro BOOST_PARSER_USE_CXX20_EQUALITY_AND_COMPARISON</span></h2>
-<p>BOOST_PARSER_USE_CXX20_EQUALITY_AND_COMPARISON</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="header/boost/parser/config_hpp.html" title="Header &lt;boost/parser/config.hpp&gt;">boost/parser/config.hpp</a>&gt;
-
-</span>BOOST_PARSER_USE_CXX20_EQUALITY_AND_COMPARISON</pre></div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
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diff --git a/doc/html/BOOST_PARSER_USE__idm18212.html b/doc/html/BOOST_PARSER_USE__idm18212.html
deleted file mode 100644
index a5dc7db9..00000000
--- a/doc/html/BOOST_PARSER_USE__idm18212.html
+++ /dev/null
@@ -1,38 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Macro BOOST_PARSER_USE_CXX20_EQUALITY_AND_COMPARISON</title>
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-</div>
-<div class="refentry">
-<a name="BOOST_PARSER_USE__idm18212"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Macro BOOST_PARSER_USE_CXX20_EQUALITY_AND_COMPARISON</span></h2>
-<p>BOOST_PARSER_USE_CXX20_EQUALITY_AND_COMPARISON</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="header/boost/parser/config_hpp.html" title="Header &lt;boost/parser/config.hpp&gt;">boost/parser/config.hpp</a>&gt;
-
-</span>BOOST_PARSER_USE_CXX20_EQUALITY_AND_COMPARISON</pre></div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="BOOST_PARSER_USE_CONCEPTS.html"><img src="images/prev.png" alt="Prev"></a><a accesskey="u" href="header/boost/parser/config_hpp.html"><img src="images/up.png" alt="Up"></a><a accesskey="h" href="index.html"><img src="images/home.png" alt="Home"></a><a accesskey="n" href="BOOST_PARSER_USE_STD_TUPLE.html"><img src="images/next.png" alt="Next"></a>
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diff --git a/doc/html/BOOST_PARSER_USE__idm18190.html b/doc/html/BOOST_PARSER_USE__idm18482.html
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rename from doc/html/BOOST_PARSER_USE__idm18190.html
rename to doc/html/BOOST_PARSER_USE__idm18482.html
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--- a/doc/html/BOOST_PARSER_USE__idm18190.html
+++ b/doc/html/BOOST_PARSER_USE__idm18482.html
@@ -15,7 +15,7 @@
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 </div>
 <div class="refentry">
-<a name="BOOST_PARSER_USE__idm18190"></a><div class="titlepage"></div>
+<a name="BOOST_PARSER_USE__idm18482"></a><div class="titlepage"></div>
 <div class="refnamediv">
 <h2><span class="refentrytitle">Macro BOOST_PARSER_USE_CXX20_EQUALITY_AND_COMPARISON</span></h2>
 <p>BOOST_PARSER_USE_CXX20_EQUALITY_AND_COMPARISON</p>
diff --git a/doc/html/boost/parser/Inf.html b/doc/html/boost/parser/Inf.html
index dd4a8745..ef2db585 100644
--- a/doc/html/boost/parser/Inf.html
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 <div class="refsect1">
-<a name="idm32769"></a><h2>Description</h2>
+<a name="idm33152"></a><h2>Description</h2>
 <p>A very large sentinel value used to represent pseudo-infinity. </p>
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index f6dc200f..ed612248 100644
--- a/doc/html/boost/parser/_attr.html
+++ b/doc/html/boost/parser/_attr.html
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 </span>
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 <div class="refsect1">
-<a name="idm33513"></a><h2>Description</h2>
+<a name="idm33956"></a><h2>Description</h2>
 <p>Returns a reference to the attribute or attributes already produced by the bottommost parser; multiple attributes will be stored within a <code class="computeroutput">parser::tuple</code>. Returns <code class="computeroutput">none</code> if the bottommost parser does produce an attribute. </p>
 </div>
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diff --git a/doc/html/boost/parser/_begin.html b/doc/html/boost/parser/_begin.html
index e1e11adb..df143eff 100644
--- a/doc/html/boost/parser/_begin.html
+++ b/doc/html/boost/parser/_begin.html
@@ -26,7 +26,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span>
 <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> <span class="keyword">decltype</span><span class="special">(</span><span class="keyword">auto</span><span class="special">)</span> <span class="identifier">_begin</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">)</span><span class="special">;</span></pre></div>
 <div class="refsect1">
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+<a name="idm34017"></a><h2>Description</h2>
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index 84f0c086..d536f7fa 100644
--- a/doc/html/boost/parser/_end.html
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+<a name="idm34046"></a><h2>Description</h2>
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index a33a2b09..8621e820 100644
--- a/doc/html/boost/parser/_error_handler.html
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 <link rel="prev" href="_globals.html" title="Function template _globals">
-<link rel="next" href="report_error_idm22027.html" title="Function template _report_error">
+<link rel="next" href="report_error_idm22354.html" title="Function template _report_error">
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+<a accesskey="p" href="_globals.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="report_error_idm22354.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
 <a name="boost.parser._error_handler"></a><div class="titlepage"></div>
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 <div class="refsect1">
-<a name="idm33758"></a><h2>Description</h2>
+<a name="idm34201"></a><h2>Description</h2>
 <p>Returns a reference to the error handler object associated with the bottommost parser. Returns <code class="computeroutput">none</code> if there is no associated error handler. </p>
 </div>
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@@ -38,7 +38,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="_globals.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="report_error_idm22027.html"><img src="../../images/next.png" alt="Next"></a>
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diff --git a/doc/html/boost/parser/_globals.html b/doc/html/boost/parser/_globals.html
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+++ b/doc/html/boost/parser/_globals.html
@@ -26,7 +26,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
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+<a name="idm34171"></a><h2>Description</h2>
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diff --git a/doc/html/boost/parser/_locals.html b/doc/html/boost/parser/_locals.html
index 29d5044a..343b5441 100644
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+++ b/doc/html/boost/parser/_locals.html
@@ -26,7 +26,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
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+<a name="idm34106"></a><h2>Description</h2>
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index c74541bc..aff2bb8a 100644
--- a/doc/html/boost/parser/_p.html
+++ b/doc/html/boost/parser/_p.html
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 <div class="refsect1">
-<a name="idm32751"></a><h2>Description</h2>
+<a name="idm33134"></a><h2>Description</h2>
 <p>An invocable that returns the <code class="computeroutput">I</code>th parameter to the bottommost rule. This is useful for forwarding parameters to sub-rules. </p>
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index 99efc05b..a4847ecd 100644
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 <div class="refsect1">
-<a name="idm33694"></a><h2>Description</h2>
+<a name="idm34137"></a><h2>Description</h2>
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diff --git a/doc/html/boost/parser/_pass.html b/doc/html/boost/parser/_pass.html
index 7e915043..ae441366 100644
--- a/doc/html/boost/parser/_pass.html
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 <div class="refsect1">
-<a name="idm33632"></a><h2>Description</h2>
+<a name="idm34075"></a><h2>Description</h2>
 <p>Returns a reference to a <code class="computeroutput">bool</code> that represents the success or failure of the bottommost parser. You can assign <code class="computeroutput">false</code> to this within a semantic action to force a parser to fail its parse. </p>
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diff --git a/doc/html/boost/parser/_val.html b/doc/html/boost/parser/_val.html
index a819a24b..610d8320 100644
--- a/doc/html/boost/parser/_val.html
+++ b/doc/html/boost/parser/_val.html
@@ -26,7 +26,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
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 <div class="refsect1">
-<a name="idm33482"></a><h2>Description</h2>
+<a name="idm33925"></a><h2>Description</h2>
 <p>Returns a reference to the attribute(s) (i.e. return value) of the bottommost parser; multiple attributes will be stored within a <code class="computeroutput">parser::tuple</code>. You may write to this value in a semantic action to control what attribute value(s) the associated parser produces. Returns <code class="computeroutput">none</code> if the bottommost parser does produce an attribute. </p>
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diff --git a/doc/html/boost/parser/_where.html b/doc/html/boost/parser/_where.html
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--- a/doc/html/boost/parser/_where.html
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@@ -26,7 +26,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
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+<a name="idm33987"></a><h2>Description</h2>
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 <div class="spirit-nav">
-<a accesskey="p" href="literals/operator_p_idm21638.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="attr_parser.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="literals/operator_p_idm21939.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="attr_parser.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
 <a name="boost.parser.action_parser"></a><div class="titlepage"></div>
@@ -26,15 +26,15 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> Action<span class="special">&gt;</span> 
 <span class="keyword">struct</span> <a class="link" href="action_parser.html" title="Struct template action_parser">action_parser</a> <span class="special">{</span>
 
-  <span class="comment">// <a class="link" href="action_parser.html#idm18681-bb">public member functions</a></span>
+  <span class="comment">// <a class="link" href="action_parser.html#idm18951-bb">public member functions</a></span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-    <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="action_parser.html#idm18682-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="action_parser.html#idm18952-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
                      <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> 
                      <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="action_parser.html#idm18707-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">void</span> <a class="link" href="action_parser.html#idm18977-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">,</span> 
               <span class="identifier">Attribute</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
 
@@ -43,21 +43,21 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
   <span class="identifier">Action</span> <span class="identifier">action_</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm22099"></a><h2>Description</h2>
+<a name="idm22333"></a><h2>Description</h2>
 <p>Applies the given parser <code class="computeroutput">p</code> of type <code class="computeroutput">Parser</code> and an invocable <code class="computeroutput">a</code> of type <code class="computeroutput">Action</code>. <code class="computeroutput">Action</code> shall model <code class="computeroutput">semantic_action</code>, and <code class="computeroutput">a</code> will only be invoked if <code class="computeroutput">p</code> succeeds. The parse succeeds iff <code class="computeroutput">p</code> succeeds. Produces no attribute. </p>
 <div class="refsect2">
-<a name="idm22111"></a><h3>
-<a name="idm18681-bb"></a><code class="computeroutput">action_parser</code> public member functions</h3>
+<a name="idm22345"></a><h3>
+<a name="idm18951-bb"></a><code class="computeroutput">action_parser</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-  <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a name="idm18682-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a name="idm18952-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
                    <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> 
                    <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> 
                    <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm18707-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="keyword">void</span> <a name="idm18977-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">,</span> <span class="identifier">Attribute</span> <span class="special">&amp;</span> retval<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 </ol></div>
@@ -71,7 +71,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="literals/operator_p_idm21638.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="attr_parser.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="literals/operator_p_idm21939.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="attr_parser.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/as_utf16.html b/doc/html/boost/parser/as_utf16.html
index 2a4052f3..2e20292e 100644
--- a/doc/html/boost/parser/as_utf16.html
+++ b/doc/html/boost/parser/as_utf16.html
@@ -25,7 +25,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="keyword">constexpr</span> <span class="keyword">auto</span> as_utf16<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm36695"></a><h2>Description</h2>
+<a name="idm37160"></a><h2>Description</h2>
 <p>A view adaptor that produces a <code class="computeroutput"><a class="link" href="utf16_view.html" title="Class template utf16_view">utf16_view</a></code> of the given view. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/as_utf32.html b/doc/html/boost/parser/as_utf32.html
index 39869bba..73585138 100644
--- a/doc/html/boost/parser/as_utf32.html
+++ b/doc/html/boost/parser/as_utf32.html
@@ -25,7 +25,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="keyword">constexpr</span> <span class="keyword">auto</span> as_utf32<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm36714"></a><h2>Description</h2>
+<a name="idm37179"></a><h2>Description</h2>
 <p>A view adaptor that produces a <code class="computeroutput"><a class="link" href="utf32_view.html" title="Class template utf32_view">utf32_view</a></code> of the given view. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/as_utf8.html b/doc/html/boost/parser/as_utf8.html
index 25d345ba..d71cc8f8 100644
--- a/doc/html/boost/parser/as_utf8.html
+++ b/doc/html/boost/parser/as_utf8.html
@@ -25,7 +25,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="keyword">constexpr</span> <span class="keyword">auto</span> as_utf8<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm36676"></a><h2>Description</h2>
+<a name="idm37141"></a><h2>Description</h2>
 <p>A view adaptor that produces a <code class="computeroutput"><a class="link" href="utf8_view.html" title="Class template utf8_view">utf8_view</a></code> of the given view. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/ascii/alnum.html b/doc/html/boost/parser/ascii/alnum.html
index 6b313aeb..ee4708ba 100644
--- a/doc/html/boost/parser/ascii/alnum.html
+++ b/doc/html/boost/parser/ascii/alnum.html
@@ -25,7 +25,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="emphasis"><em><span class="identifier">unspecified</span></em></span> alnum<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm21448"></a><h2>Description</h2>
+<a name="idm21682"></a><h2>Description</h2>
 <p>Matches the characters for which <code class="computeroutput">std::isalnum()</code> is true. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/ascii/alpha.html b/doc/html/boost/parser/ascii/alpha.html
index aaa33d9f..2460705c 100644
--- a/doc/html/boost/parser/ascii/alpha.html
+++ b/doc/html/boost/parser/ascii/alpha.html
@@ -25,7 +25,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="emphasis"><em><span class="identifier">unspecified</span></em></span> alpha<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm21466"></a><h2>Description</h2>
+<a name="idm21700"></a><h2>Description</h2>
 <p>Matches the characters for which <code class="computeroutput">std::alpha()</code> is true. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/ascii/blank.html b/doc/html/boost/parser/ascii/blank.html
index 54a4c4a9..296e3e14 100644
--- a/doc/html/boost/parser/ascii/blank.html
+++ b/doc/html/boost/parser/ascii/blank.html
@@ -25,7 +25,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="emphasis"><em><span class="identifier">unspecified</span></em></span> blank<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm21484"></a><h2>Description</h2>
+<a name="idm21718"></a><h2>Description</h2>
 <p>Matches the characters for which <code class="computeroutput">std::isblank()</code> is true. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/ascii/cntrl.html b/doc/html/boost/parser/ascii/cntrl.html
index baf388c9..ecfab35c 100644
--- a/doc/html/boost/parser/ascii/cntrl.html
+++ b/doc/html/boost/parser/ascii/cntrl.html
@@ -25,7 +25,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="emphasis"><em><span class="identifier">unspecified</span></em></span> cntrl<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm21502"></a><h2>Description</h2>
+<a name="idm21736"></a><h2>Description</h2>
 <p>Matches the characters for which <code class="computeroutput">std::iscntrl()</code> is true. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/ascii/digit.html b/doc/html/boost/parser/ascii/digit.html
index 687a4a6d..34b08607 100644
--- a/doc/html/boost/parser/ascii/digit.html
+++ b/doc/html/boost/parser/ascii/digit.html
@@ -25,7 +25,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="emphasis"><em><span class="identifier">unspecified</span></em></span> digit<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm21520"></a><h2>Description</h2>
+<a name="idm21754"></a><h2>Description</h2>
 <p>Matches the characters for which <code class="computeroutput">std::isdigit()</code> is true. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/ascii/graph.html b/doc/html/boost/parser/ascii/graph.html
index 93c6220c..8e88c81e 100644
--- a/doc/html/boost/parser/ascii/graph.html
+++ b/doc/html/boost/parser/ascii/graph.html
@@ -25,7 +25,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="emphasis"><em><span class="identifier">unspecified</span></em></span> graph<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm21538"></a><h2>Description</h2>
+<a name="idm21772"></a><h2>Description</h2>
 <p>Matches the characters for which <code class="computeroutput">std::isgraph()</code> is true. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/ascii/lower.html b/doc/html/boost/parser/ascii/lower.html
index 996b5264..0d5abfc5 100644
--- a/doc/html/boost/parser/ascii/lower.html
+++ b/doc/html/boost/parser/ascii/lower.html
@@ -25,7 +25,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="emphasis"><em><span class="identifier">unspecified</span></em></span> lower<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm21628"></a><h2>Description</h2>
+<a name="idm21862"></a><h2>Description</h2>
 <p>Matches the characters for which <code class="computeroutput">std::islower()</code> is true. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/ascii/print.html b/doc/html/boost/parser/ascii/print.html
index 0007766b..f4c10309 100644
--- a/doc/html/boost/parser/ascii/print.html
+++ b/doc/html/boost/parser/ascii/print.html
@@ -25,7 +25,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="emphasis"><em><span class="identifier">unspecified</span></em></span> print<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm21556"></a><h2>Description</h2>
+<a name="idm21790"></a><h2>Description</h2>
 <p>Matches the characters for which <code class="computeroutput">std::isprint()</code> is true. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/ascii/punct.html b/doc/html/boost/parser/ascii/punct.html
index 31bdf2bc..96449a62 100644
--- a/doc/html/boost/parser/ascii/punct.html
+++ b/doc/html/boost/parser/ascii/punct.html
@@ -25,7 +25,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="emphasis"><em><span class="identifier">unspecified</span></em></span> punct<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm21574"></a><h2>Description</h2>
+<a name="idm21808"></a><h2>Description</h2>
 <p>Matches the characters for which <code class="computeroutput">std::ispunct()</code> is true. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/ascii/space.html b/doc/html/boost/parser/ascii/space.html
index ec3f24e3..533f641f 100644
--- a/doc/html/boost/parser/ascii/space.html
+++ b/doc/html/boost/parser/ascii/space.html
@@ -25,7 +25,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="emphasis"><em><span class="identifier">unspecified</span></em></span> space<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm21592"></a><h2>Description</h2>
+<a name="idm21826"></a><h2>Description</h2>
 <p>Matches the characters for which <code class="computeroutput">std::isspace()</code> is true. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/ascii/upper.html b/doc/html/boost/parser/ascii/upper.html
index 5f4b4e5e..3fcb609c 100644
--- a/doc/html/boost/parser/ascii/upper.html
+++ b/doc/html/boost/parser/ascii/upper.html
@@ -7,12 +7,12 @@
 <link rel="home" href="../../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
 <link rel="prev" href="lower.html" title="Global lower">
-<link rel="next" href="../literals/operator_l_idm21551.html" title='Function operator""_l'>
+<link rel="next" href="../literals/operator_l_idm21852.html" title='Function operator""_l'>
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="lower.html"><img src="../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../../header/boost/parser/parser_hpp.html"><img src="../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../images/home.png" alt="Home"></a><a accesskey="n" href="../literals/operator_l_idm21551.html"><img src="../../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="lower.html"><img src="../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../../header/boost/parser/parser_hpp.html"><img src="../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../images/home.png" alt="Home"></a><a accesskey="n" href="../literals/operator_l_idm21852.html"><img src="../../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
 <a name="boost.parser.ascii.upper"></a><div class="titlepage"></div>
@@ -25,7 +25,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="emphasis"><em><span class="identifier">unspecified</span></em></span> upper<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm21646"></a><h2>Description</h2>
+<a name="idm21880"></a><h2>Description</h2>
 <p>Matches the characters for which <code class="computeroutput">std::isupper()</code> is true. </p>
 </div>
 </div>
@@ -36,7 +36,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="lower.html"><img src="../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../../header/boost/parser/parser_hpp.html"><img src="../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../images/home.png" alt="Home"></a><a accesskey="n" href="../literals/operator_l_idm21551.html"><img src="../../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="lower.html"><img src="../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../../header/boost/parser/parser_hpp.html"><img src="../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../images/home.png" alt="Home"></a><a accesskey="n" href="../literals/operator_l_idm21852.html"><img src="../../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/ascii/xdigit.html b/doc/html/boost/parser/ascii/xdigit.html
index f3f5a2bd..f22d20e3 100644
--- a/doc/html/boost/parser/ascii/xdigit.html
+++ b/doc/html/boost/parser/ascii/xdigit.html
@@ -25,7 +25,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="emphasis"><em><span class="identifier">unspecified</span></em></span> xdigit<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm21610"></a><h2>Description</h2>
+<a name="idm21844"></a><h2>Description</h2>
 <p>Matches the characters for which <code class="computeroutput">std::isxdigit()</code> is true. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/attr.html b/doc/html/boost/parser/attr.html
index 3dc61490..01e1c8ea 100644
--- a/doc/html/boost/parser/attr.html
+++ b/doc/html/boost/parser/attr.html
@@ -6,13 +6,13 @@
 <meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
 <link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="repeat_idm22132.html" title="Function template repeat">
-<link rel="next" href="lit_idm22165.html" title="Function lit">
+<link rel="prev" href="repeat_idm22459.html" title="Function template repeat">
+<link rel="next" href="lit_idm22492.html" title="Function lit">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="repeat_idm22132.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="lit_idm22165.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="repeat_idm22459.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="lit_idm22492.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
 <a name="boost.parser.attr"></a><div class="titlepage"></div>
@@ -26,7 +26,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span>
 <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Attribute<span class="special">&gt;</span> <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="identifier">attr</span><span class="special">(</span><span class="identifier">Attribute</span> a<span class="special">)</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm34021"></a><h2>Description</h2>
+<a name="idm34464"></a><h2>Description</h2>
 <p>Returns an <code class="computeroutput"><code class="computeroutput"><a class="link" href="attr_parser.html" title="Struct template attr_parser">attr_parser</a></code></code> which matches anything, and consumes no input, and which produces <code class="computeroutput">a</code> as its attribute. </p>
 </div>
 </div>
@@ -37,7 +37,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="repeat_idm22132.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="lit_idm22165.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="repeat_idm22459.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="lit_idm22492.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/attr_parser.html b/doc/html/boost/parser/attr_parser.html
index 4f46c3f5..83d2fec8 100644
--- a/doc/html/boost/parser/attr_parser.html
+++ b/doc/html/boost/parser/attr_parser.html
@@ -26,14 +26,14 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
 <span class="keyword">struct</span> <a class="link" href="attr_parser.html" title="Struct template attr_parser">attr_parser</a> <span class="special">{</span>
 
-  <span class="comment">// <a class="link" href="attr_parser.html#idm18742-bb">public member functions</a></span>
+  <span class="comment">// <a class="link" href="attr_parser.html#idm19012-bb">public member functions</a></span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-    <span class="keyword">auto</span> <a class="link" href="attr_parser.html#idm18743-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">auto</span> <a class="link" href="attr_parser.html#idm19013-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute_<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="attr_parser.html#idm18767-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">void</span> <a class="link" href="attr_parser.html#idm19037-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">,</span> 
               <span class="identifier">Attribute_</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
 
@@ -41,20 +41,20 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
   <span class="identifier">Attribute</span> <span class="identifier">attr_</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm22335"></a><h2>Description</h2>
+<a name="idm22569"></a><h2>Description</h2>
 <p>Matches anything, consumes no input, and produces an attribute of type <code class="computeroutput">Attribute</code>. </p>
 <div class="refsect2">
-<a name="idm22339"></a><h3>
-<a name="idm18742-bb"></a><code class="computeroutput">attr_parser</code> public member functions</h3>
+<a name="idm22573"></a><h3>
+<a name="idm19012-bb"></a><code class="computeroutput">attr_parser</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-  <span class="keyword">auto</span> <a name="idm18743-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="keyword">auto</span> <a name="idm19013-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute_<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm18767-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="keyword">void</span> <a name="idm19037-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">,</span> <span class="identifier">Attribute_</span> <span class="special">&amp;</span> retval<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 </ol></div>
diff --git a/doc/html/boost/parser/bin.html b/doc/html/boost/parser/bin.html
index 6456d94d..662cc740 100644
--- a/doc/html/boost/parser/bin.html
+++ b/doc/html/boost/parser/bin.html
@@ -25,7 +25,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="keyword">constexpr</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <a class="link" href="uint_parser.html" title="Struct template uint_parser">uint_parser</a><span class="special">&lt;</span> <span class="keyword">unsigned</span> <span class="keyword">int</span><span class="special">,</span> <span class="number">2</span> <span class="special">&gt;</span> <span class="special">&gt;</span> bin<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm33120"></a><h2>Description</h2>
+<a name="idm33563"></a><h2>Description</h2>
 <p>The binary unsigned integer parser. Produces an <code class="computeroutput">unsigned int</code> attribute. To parse a particular value <code class="computeroutput">x</code>, use <code class="computeroutput">bin(x)</code>. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/bool_.html b/doc/html/boost/parser/bool_.html
index 9e645d75..d0710224 100644
--- a/doc/html/boost/parser/bool_.html
+++ b/doc/html/boost/parser/bool_.html
@@ -25,7 +25,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="keyword">constexpr</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <a class="link" href="bool_parser.html" title="Struct bool_parser">bool_parser</a> <span class="special">&gt;</span> bool_<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm33092"></a><h2>Description</h2>
+<a name="idm33535"></a><h2>Description</h2>
 <p>The Boolean parser. Parses "true" and "false", producing attributes <code class="computeroutput">true</code> and <code class="computeroutput">false</code>, respectively, and fails on any other input. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/bool_parser.html b/doc/html/boost/parser/bool_parser.html
index a4aa525a..45e389cf 100644
--- a/doc/html/boost/parser/bool_parser.html
+++ b/doc/html/boost/parser/bool_parser.html
@@ -26,31 +26,31 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span>
 <span class="keyword">struct</span> <a class="link" href="bool_parser.html" title="Struct bool_parser">bool_parser</a> <span class="special">{</span>
 
-  <span class="comment">// <a class="link" href="bool_parser.html#idm18795-bb">public member functions</a></span>
+  <span class="comment">// <a class="link" href="bool_parser.html#idm19065-bb">public member functions</a></span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-    <span class="keyword">bool</span> <a class="link" href="bool_parser.html#idm18796-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">bool</span> <a class="link" href="bool_parser.html#idm19066-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="bool_parser.html#idm18820-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">void</span> <a class="link" href="bool_parser.html#idm19090-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">,</span> 
               <span class="identifier">Attribute</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm22554"></a><h2>Description</h2>
+<a name="idm22788"></a><h2>Description</h2>
 <div class="refsect2">
-<a name="idm22556"></a><h3>
-<a name="idm18795-bb"></a><code class="computeroutput">bool_parser</code> public member functions</h3>
+<a name="idm22790"></a><h3>
+<a name="idm19065-bb"></a><code class="computeroutput">bool_parser</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <a name="idm18796-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="keyword">bool</span> <a name="idm19066-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm18820-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="keyword">void</span> <a name="idm19090-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">,</span> <span class="identifier">Attribute</span> <span class="special">&amp;</span> retval<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 </ol></div>
diff --git a/doc/html/boost/parser/callback_error_handler.html b/doc/html/boost/parser/callback_error_handler.html
index e1e629cb..9f6e332d 100644
--- a/doc/html/boost/parser/callback_error_handler.html
+++ b/doc/html/boost/parser/callback_error_handler.html
@@ -29,19 +29,19 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
   <span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">function</span><span class="special">&lt;</span> <span class="keyword">void</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">&gt;</span> <a name="boost.parser.callback_error_handler.callback_type"></a><span class="identifier">callback_type</span><span class="special">;</span>
 
   <span class="comment">// <a class="link" href="callback_error_handler.html#boost.parser.callback_error_handlerconstruct-copy-destruct">construct/copy/destruct</a></span>
-  <a class="link" href="callback_error_handler.html#idm18265-bb"><span class="identifier">callback_error_handler</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
-  <a class="link" href="callback_error_handler.html#idm18266-bb"><span class="identifier">callback_error_handler</span></a><span class="special">(</span><span class="identifier">callback_type</span><span class="special">,</span> <span class="identifier">callback_type</span> <span class="special">=</span> <span class="identifier">callback_type</span><span class="special">(</span><span class="special">)</span><span class="special">,</span> 
+  <a class="link" href="callback_error_handler.html#idm18535-bb"><span class="identifier">callback_error_handler</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="callback_error_handler.html#idm18536-bb"><span class="identifier">callback_error_handler</span></a><span class="special">(</span><span class="identifier">callback_type</span><span class="special">,</span> <span class="identifier">callback_type</span> <span class="special">=</span> <span class="identifier">callback_type</span><span class="special">(</span><span class="special">)</span><span class="special">,</span> 
                          <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> <span class="special">=</span> <span class="string">""</span><span class="special">)</span><span class="special">;</span>
-  <a class="link" href="callback_error_handler.html#idm18275-bb"><span class="identifier">callback_error_handler</span></a><span class="special">(</span><span class="identifier">callback_type</span><span class="special">,</span> <span class="identifier">callback_type</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring_view</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="callback_error_handler.html#idm18545-bb"><span class="identifier">callback_error_handler</span></a><span class="special">(</span><span class="identifier">callback_type</span><span class="special">,</span> <span class="identifier">callback_type</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring_view</span><span class="special">)</span><span class="special">;</span>
 
-  <span class="comment">// <a class="link" href="callback_error_handler.html#idm18229-bb">public member functions</a></span>
+  <span class="comment">// <a class="link" href="callback_error_handler.html#idm18499-bb">public member functions</a></span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">&gt;</span> 
     <span class="identifier">error_handler_result</span> 
-    <a class="link" href="callback_error_handler.html#idm18230-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">Iter</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> <a class="link" href="parse_error.html" title="Struct template parse_error">parse_error</a><span class="special">&lt;</span> <span class="identifier">Iter</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+    <a class="link" href="callback_error_handler.html#idm18500-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">Iter</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> <a class="link" href="parse_error.html" title="Struct template parse_error">parse_error</a><span class="special">&lt;</span> <span class="identifier">Iter</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="callback_error_handler.html#idm18242-bb"><span class="identifier">diagnose</span></a><span class="special">(</span><span class="identifier">diagnostic_kind</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Iter</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+    <span class="keyword">void</span> <a class="link" href="callback_error_handler.html#idm18512-bb"><span class="identifier">diagnose</span></a><span class="special">(</span><span class="identifier">diagnostic_kind</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Iter</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="callback_error_handler.html#idm18255-bb"><span class="identifier">diagnose</span></a><span class="special">(</span><span class="identifier">diagnostic_kind</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+    <span class="keyword">void</span> <a class="link" href="callback_error_handler.html#idm18525-bb"><span class="identifier">diagnose</span></a><span class="special">(</span><span class="identifier">diagnostic_kind</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
 
   <span class="comment">// public data members</span>
   <span class="identifier">callback_type</span> <span class="identifier">error_</span><span class="special">;</span>
@@ -49,37 +49,37 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
   <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">filename_</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm17616"></a><h2>Description</h2>
+<a name="idm17842"></a><h2>Description</h2>
 <p>An error handler that allows users to supply callbacks to handle the reporting of warnings and errors. The reporting of errors and/or warnings can be suppressed by supplying one or both default-constructed callbacks. </p>
 <div class="refsect2">
-<a name="idm17619"></a><h3>
+<a name="idm17845"></a><h3>
 <a name="boost.parser.callback_error_handlerconstruct-copy-destruct"></a><code class="computeroutput">callback_error_handler</code> 
         public
        construct/copy/destruct</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
-<li class="listitem"><pre class="literallayout"><a name="idm18265-bb"></a><span class="identifier">callback_error_handler</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><a name="idm18266-bb"></a><span class="identifier">callback_error_handler</span><span class="special">(</span><span class="identifier">callback_type</span> error<span class="special">,</span> 
+<li class="listitem"><pre class="literallayout"><a name="idm18535-bb"></a><span class="identifier">callback_error_handler</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a name="idm18536-bb"></a><span class="identifier">callback_error_handler</span><span class="special">(</span><span class="identifier">callback_type</span> error<span class="special">,</span> 
                        <span class="identifier">callback_type</span> warning <span class="special">=</span> <span class="identifier">callback_type</span><span class="special">(</span><span class="special">)</span><span class="special">,</span> 
                        <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> filename <span class="special">=</span> <span class="string">""</span><span class="special">)</span><span class="special">;</span></pre></li>
 <li class="listitem">
-<pre class="literallayout"><a name="idm18275-bb"></a><span class="identifier">callback_error_handler</span><span class="special">(</span><span class="identifier">callback_type</span> error<span class="special">,</span> <span class="identifier">callback_type</span> warning<span class="special">,</span> 
+<pre class="literallayout"><a name="idm18545-bb"></a><span class="identifier">callback_error_handler</span><span class="special">(</span><span class="identifier">callback_type</span> error<span class="special">,</span> <span class="identifier">callback_type</span> warning<span class="special">,</span> 
                        <span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring_view</span> filename<span class="special">)</span><span class="special">;</span></pre>
 <p>This overload is Windows-only. </p>
 </li>
 </ol></div>
 </div>
 <div class="refsect2">
-<a name="idm17669"></a><h3>
-<a name="idm18229-bb"></a><code class="computeroutput">callback_error_handler</code> public member functions</h3>
+<a name="idm17895"></a><h3>
+<a name="idm18499-bb"></a><code class="computeroutput">callback_error_handler</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">&gt;</span> 
   <span class="identifier">error_handler_result</span> 
-  <a name="idm18230-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">Iter</span> first<span class="special">,</span> <span class="identifier">Sentinel</span> last<span class="special">,</span> <a class="link" href="parse_error.html" title="Struct template parse_error">parse_error</a><span class="special">&lt;</span> <span class="identifier">Iter</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> e<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+  <a name="idm18500-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">Iter</span> first<span class="special">,</span> <span class="identifier">Sentinel</span> last<span class="special">,</span> <a class="link" href="parse_error.html" title="Struct template parse_error">parse_error</a><span class="special">&lt;</span> <span class="identifier">Iter</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> e<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm18242-bb"></a><span class="identifier">diagnose</span><span class="special">(</span><span class="identifier">diagnostic_kind</span> kind<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
+  <span class="keyword">void</span> <a name="idm18512-bb"></a><span class="identifier">diagnose</span><span class="special">(</span><span class="identifier">diagnostic_kind</span> kind<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
                 <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">Iter</span> it<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm18255-bb"></a><span class="identifier">diagnose</span><span class="special">(</span><span class="identifier">diagnostic_kind</span> kind<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
+  <span class="keyword">void</span> <a name="idm18525-bb"></a><span class="identifier">diagnose</span><span class="special">(</span><span class="identifier">diagnostic_kind</span> kind<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
                 <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 </ol></div>
 </div>
diff --git a/doc/html/boost/parser/callback_parse_idm22702.html b/doc/html/boost/parser/callback_parse_idm22702.html
deleted file mode 100644
index b9b65d4a..00000000
--- a/doc/html/boost/parser/callback_parse_idm22702.html
+++ /dev/null
@@ -1,49 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template callback_parse</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="callback_prefix_p_idm22663.html" title="Function template callback_prefix_parse">
-<link rel="next" href="callback_prefix_p_idm22739.html" title="Function template callback_prefix_parse">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="callback_prefix_p_idm22663.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_prefix_p_idm22739.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.callback_parse_idm22702"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template callback_parse</span></h2>
-<p>boost::parser::callback_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> Callbacks<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">callback_parse</span><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span> r<span class="special">,</span> 
-                      <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                      <span class="identifier">Callbacks</span> <span class="keyword">const</span> <span class="special">&amp;</span> callbacks<span class="special">,</span> 
-                      <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35569"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">r</code> using <code class="computeroutput">parser</code>, and returns whether the parse was successful. The entire input range <code class="computeroutput">r</code> must be consumed for the parse to be considered successful. When a callback rule <code class="computeroutput">r</code> is successful during the parse, one of two things happens: 1) if <code class="computeroutput">r</code> has an attribute, <code class="computeroutput">callbacks(tag, x)</code> will be called (where <code class="computeroutput">tag</code> is <code class="computeroutput">decltype(r)::tag_type{}</code>, and <code class="computeroutput">x</code> is the attribute produced by <code class="computeroutput">r</code>); or 2) if <code class="computeroutput">r</code> has no attribute, <code class="computeroutput">callbacks(tag)</code> will be called. <code class="computeroutput">Callbacks</code> is expected to be an invocable with the correct overloads required to support all successful rule parses that might occur. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="callback_prefix_p_idm22663.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_prefix_p_idm22739.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/callback_parse_idm22704.html b/doc/html/boost/parser/callback_parse_idm22704.html
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+++ /dev/null
@@ -1,49 +0,0 @@
-<html>
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-</div>
-<div class="refentry">
-<a name="boost.parser.callback_parse_idm22704"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template callback_parse</span></h2>
-<p>boost::parser::callback_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> Callbacks<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">callback_parse</span><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span> r<span class="special">,</span> 
-                      <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                      <span class="identifier">Callbacks</span> <span class="keyword">const</span> <span class="special">&amp;</span> callbacks<span class="special">,</span> 
-                      <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35571"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">r</code> using <code class="computeroutput">parser</code>, and returns whether the parse was successful. The entire input range <code class="computeroutput">r</code> must be consumed for the parse to be considered successful. When a callback rule <code class="computeroutput">r</code> is successful during the parse, one of two things happens: 1) if <code class="computeroutput">r</code> has an attribute, <code class="computeroutput">callbacks(tag, x)</code> will be called (where <code class="computeroutput">tag</code> is <code class="computeroutput">decltype(r)::tag_type{}</code>, and <code class="computeroutput">x</code> is the attribute produced by <code class="computeroutput">r</code>); or 2) if <code class="computeroutput">r</code> has no attribute, <code class="computeroutput">callbacks(tag)</code> will be called. <code class="computeroutput">Callbacks</code> is expected to be an invocable with the correct overloads required to support all successful rule parses that might occur. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="callback_prefix_p_idm22665.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_prefix_p_idm22741.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/callback_parse_idm22705.html b/doc/html/boost/parser/callback_parse_idm22705.html
deleted file mode 100644
index c9381c1f..00000000
--- a/doc/html/boost/parser/callback_parse_idm22705.html
+++ /dev/null
@@ -1,49 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template callback_parse</title>
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-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
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-<a accesskey="p" href="callback_prefix_p_idm22666.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_prefix_p_idm22742.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.callback_parse_idm22705"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template callback_parse</span></h2>
-<p>boost::parser::callback_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> Callbacks<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">callback_parse</span><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span> r<span class="special">,</span> 
-                      <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                      <span class="identifier">Callbacks</span> <span class="keyword">const</span> <span class="special">&amp;</span> callbacks<span class="special">,</span> 
-                      <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35572"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">r</code> using <code class="computeroutput">parser</code>, and returns whether the parse was successful. The entire input range <code class="computeroutput">r</code> must be consumed for the parse to be considered successful. When a callback rule <code class="computeroutput">r</code> is successful during the parse, one of two things happens: 1) if <code class="computeroutput">r</code> has an attribute, <code class="computeroutput">callbacks(tag, x)</code> will be called (where <code class="computeroutput">tag</code> is <code class="computeroutput">decltype(r)::tag_type{}</code>, and <code class="computeroutput">x</code> is the attribute produced by <code class="computeroutput">r</code>); or 2) if <code class="computeroutput">r</code> has no attribute, <code class="computeroutput">callbacks(tag)</code> will be called. <code class="computeroutput">Callbacks</code> is expected to be an invocable with the correct overloads required to support all successful rule parses that might occur. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="callback_prefix_p_idm22666.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_prefix_p_idm22742.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
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-</html>
diff --git a/doc/html/boost/parser/callback_parse_idm22706.html b/doc/html/boost/parser/callback_parse_idm22706.html
deleted file mode 100644
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--- a/doc/html/boost/parser/callback_parse_idm22706.html
+++ /dev/null
@@ -1,49 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template callback_parse</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
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-<a accesskey="p" href="callback_prefix_p_idm22667.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_prefix_p_idm22743.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.callback_parse_idm22706"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template callback_parse</span></h2>
-<p>boost::parser::callback_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> Callbacks<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">callback_parse</span><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span> r<span class="special">,</span> 
-                      <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                      <span class="identifier">Callbacks</span> <span class="keyword">const</span> <span class="special">&amp;</span> callbacks<span class="special">,</span> 
-                      <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35572"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">r</code> using <code class="computeroutput">parser</code>, and returns whether the parse was successful. The entire input range <code class="computeroutput">r</code> must be consumed for the parse to be considered successful. When a callback rule <code class="computeroutput">r</code> is successful during the parse, one of two things happens: 1) if <code class="computeroutput">r</code> has an attribute, <code class="computeroutput">callbacks(tag, x)</code> will be called (where <code class="computeroutput">tag</code> is <code class="computeroutput">decltype(r)::tag_type{}</code>, and <code class="computeroutput">x</code> is the attribute produced by <code class="computeroutput">r</code>); or 2) if <code class="computeroutput">r</code> has no attribute, <code class="computeroutput">callbacks(tag)</code> will be called. <code class="computeroutput">Callbacks</code> is expected to be an invocable with the correct overloads required to support all successful rule parses that might occur. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="callback_prefix_p_idm22667.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_prefix_p_idm22743.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/callback_parse_idm22722.html b/doc/html/boost/parser/callback_parse_idm22722.html
deleted file mode 100644
index 411f7813..00000000
--- a/doc/html/boost/parser/callback_parse_idm22722.html
+++ /dev/null
@@ -1,49 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template callback_parse</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
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-<link rel="prev" href="callback_prefix_p_idm22683.html" title="Function template callback_prefix_parse">
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-<div class="spirit-nav">
-<a accesskey="p" href="callback_prefix_p_idm22683.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_prefix_p_idm22759.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.callback_parse_idm22722"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template callback_parse</span></h2>
-<p>boost::parser::callback_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> Callbacks<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">callback_parse</span><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span> r<span class="special">,</span> 
-                      <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                      <span class="identifier">Callbacks</span> <span class="keyword">const</span> <span class="special">&amp;</span> callbacks<span class="special">,</span> 
-                      <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35588"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">r</code> using <code class="computeroutput">parser</code>, and returns whether the parse was successful. The entire input range <code class="computeroutput">r</code> must be consumed for the parse to be considered successful. When a callback rule <code class="computeroutput">r</code> is successful during the parse, one of two things happens: 1) if <code class="computeroutput">r</code> has an attribute, <code class="computeroutput">callbacks(tag, x)</code> will be called (where <code class="computeroutput">tag</code> is <code class="computeroutput">decltype(r)::tag_type{}</code>, and <code class="computeroutput">x</code> is the attribute produced by <code class="computeroutput">r</code>); or 2) if <code class="computeroutput">r</code> has no attribute, <code class="computeroutput">callbacks(tag)</code> will be called. <code class="computeroutput">Callbacks</code> is expected to be an invocable with the correct overloads required to support all successful rule parses that might occur. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="callback_prefix_p_idm22683.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_prefix_p_idm22759.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/callback_parse_idm22783.html b/doc/html/boost/parser/callback_parse_idm22783.html
deleted file mode 100644
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--- a/doc/html/boost/parser/callback_parse_idm22783.html
+++ /dev/null
@@ -1,50 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template callback_parse</span></h2>
-<p>boost::parser::callback_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Callbacks<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">callback_parse</span><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span> r<span class="special">,</span> 
-                      <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                      <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
-                      <span class="identifier">Callbacks</span> <span class="keyword">const</span> <span class="special">&amp;</span> callbacks<span class="special">,</span> 
-                      <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35765"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">r</code> using <code class="computeroutput">parser</code>, skipping all input recognized by <code class="computeroutput">skip</code> between the application of any two parsers, and returns whether the parse was successful. The entire input range <code class="computeroutput">r</code> must be consumed for the parse to be considered successful. When a callback rule <code class="computeroutput">r</code> is successful during the parse, one of two things happens: 1) if <code class="computeroutput">r</code> has an attribute, <code class="computeroutput">callbacks(tag, x)</code> will be called (where <code class="computeroutput">tag</code> is <code class="computeroutput">decltype(r)::tag_type{}</code>, and <code class="computeroutput">x</code> is the attribute produced by <code class="computeroutput">r</code>); or 2) if <code class="computeroutput">r</code> has no attribute, <code class="computeroutput">callbacks(tag)</code> will be called. <code class="computeroutput">Callbacks</code> is expected to be an invocable with the correct overloads required to support all successful rule parses that might occur. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
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diff --git a/doc/html/boost/parser/callback_parse_idm22785.html b/doc/html/boost/parser/callback_parse_idm22785.html
deleted file mode 100644
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--- a/doc/html/boost/parser/callback_parse_idm22785.html
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@@ -1,50 +0,0 @@
-<html>
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-</div>
-<div class="refentry">
-<a name="boost.parser.callback_parse_idm22785"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template callback_parse</span></h2>
-<p>boost::parser::callback_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Callbacks<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">callback_parse</span><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span> r<span class="special">,</span> 
-                      <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                      <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
-                      <span class="identifier">Callbacks</span> <span class="keyword">const</span> <span class="special">&amp;</span> callbacks<span class="special">,</span> 
-                      <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35767"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">r</code> using <code class="computeroutput">parser</code>, skipping all input recognized by <code class="computeroutput">skip</code> between the application of any two parsers, and returns whether the parse was successful. The entire input range <code class="computeroutput">r</code> must be consumed for the parse to be considered successful. When a callback rule <code class="computeroutput">r</code> is successful during the parse, one of two things happens: 1) if <code class="computeroutput">r</code> has an attribute, <code class="computeroutput">callbacks(tag, x)</code> will be called (where <code class="computeroutput">tag</code> is <code class="computeroutput">decltype(r)::tag_type{}</code>, and <code class="computeroutput">x</code> is the attribute produced by <code class="computeroutput">r</code>); or 2) if <code class="computeroutput">r</code> has no attribute, <code class="computeroutput">callbacks(tag)</code> will be called. <code class="computeroutput">Callbacks</code> is expected to be an invocable with the correct overloads required to support all successful rule parses that might occur. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="callback_prefix_p_idm22741.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="../../BOOST_PARSER_DEFINE_RULES.html"><img src="../../images/next.png" alt="Next"></a>
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-</html>
diff --git a/doc/html/boost/parser/callback_parse_idm22786.html b/doc/html/boost/parser/callback_parse_idm22786.html
deleted file mode 100644
index f7027d93..00000000
--- a/doc/html/boost/parser/callback_parse_idm22786.html
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@@ -1,50 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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-</div>
-<div class="refentry">
-<a name="boost.parser.callback_parse_idm22786"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template callback_parse</span></h2>
-<p>boost::parser::callback_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Callbacks<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">callback_parse</span><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span> r<span class="special">,</span> 
-                      <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                      <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
-                      <span class="identifier">Callbacks</span> <span class="keyword">const</span> <span class="special">&amp;</span> callbacks<span class="special">,</span> 
-                      <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35768"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">r</code> using <code class="computeroutput">parser</code>, skipping all input recognized by <code class="computeroutput">skip</code> between the application of any two parsers, and returns whether the parse was successful. The entire input range <code class="computeroutput">r</code> must be consumed for the parse to be considered successful. When a callback rule <code class="computeroutput">r</code> is successful during the parse, one of two things happens: 1) if <code class="computeroutput">r</code> has an attribute, <code class="computeroutput">callbacks(tag, x)</code> will be called (where <code class="computeroutput">tag</code> is <code class="computeroutput">decltype(r)::tag_type{}</code>, and <code class="computeroutput">x</code> is the attribute produced by <code class="computeroutput">r</code>); or 2) if <code class="computeroutput">r</code> has no attribute, <code class="computeroutput">callbacks(tag)</code> will be called. <code class="computeroutput">Callbacks</code> is expected to be an invocable with the correct overloads required to support all successful rule parses that might occur. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="callback_prefix_p_idm22742.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="../../BOOST_PARSER_DEFINE_RULES.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/callback_parse_idm22787.html b/doc/html/boost/parser/callback_parse_idm22787.html
deleted file mode 100644
index 85716785..00000000
--- a/doc/html/boost/parser/callback_parse_idm22787.html
+++ /dev/null
@@ -1,50 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template callback_parse</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
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-</div>
-<div class="refentry">
-<a name="boost.parser.callback_parse_idm22787"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template callback_parse</span></h2>
-<p>boost::parser::callback_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Callbacks<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">callback_parse</span><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span> r<span class="special">,</span> 
-                      <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                      <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
-                      <span class="identifier">Callbacks</span> <span class="keyword">const</span> <span class="special">&amp;</span> callbacks<span class="special">,</span> 
-                      <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35768"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">r</code> using <code class="computeroutput">parser</code>, skipping all input recognized by <code class="computeroutput">skip</code> between the application of any two parsers, and returns whether the parse was successful. The entire input range <code class="computeroutput">r</code> must be consumed for the parse to be considered successful. When a callback rule <code class="computeroutput">r</code> is successful during the parse, one of two things happens: 1) if <code class="computeroutput">r</code> has an attribute, <code class="computeroutput">callbacks(tag, x)</code> will be called (where <code class="computeroutput">tag</code> is <code class="computeroutput">decltype(r)::tag_type{}</code>, and <code class="computeroutput">x</code> is the attribute produced by <code class="computeroutput">r</code>); or 2) if <code class="computeroutput">r</code> has no attribute, <code class="computeroutput">callbacks(tag)</code> will be called. <code class="computeroutput">Callbacks</code> is expected to be an invocable with the correct overloads required to support all successful rule parses that might occur. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="callback_prefix_p_idm22743.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="../../BOOST_PARSER_DEFINE_RULES.html"><img src="../../images/next.png" alt="Next"></a>
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-</html>
diff --git a/doc/html/boost/parser/callback_parse_idm22803.html b/doc/html/boost/parser/callback_parse_idm22803.html
deleted file mode 100644
index e69362a3..00000000
--- a/doc/html/boost/parser/callback_parse_idm22803.html
+++ /dev/null
@@ -1,50 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template callback_parse</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
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-</div>
-<div class="refentry">
-<a name="boost.parser.callback_parse_idm22803"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template callback_parse</span></h2>
-<p>boost::parser::callback_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Callbacks<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">callback_parse</span><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span> r<span class="special">,</span> 
-                      <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                      <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
-                      <span class="identifier">Callbacks</span> <span class="keyword">const</span> <span class="special">&amp;</span> callbacks<span class="special">,</span> 
-                      <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35784"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">r</code> using <code class="computeroutput">parser</code>, skipping all input recognized by <code class="computeroutput">skip</code> between the application of any two parsers, and returns whether the parse was successful. The entire input range <code class="computeroutput">r</code> must be consumed for the parse to be considered successful. When a callback rule <code class="computeroutput">r</code> is successful during the parse, one of two things happens: 1) if <code class="computeroutput">r</code> has an attribute, <code class="computeroutput">callbacks(tag, x)</code> will be called (where <code class="computeroutput">tag</code> is <code class="computeroutput">decltype(r)::tag_type{}</code>, and <code class="computeroutput">x</code> is the attribute produced by <code class="computeroutput">r</code>); or 2) if <code class="computeroutput">r</code> has no attribute, <code class="computeroutput">callbacks(tag)</code> will be called. <code class="computeroutput">Callbacks</code> is expected to be an invocable with the correct overloads required to support all successful rule parses that might occur. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="callback_prefix_p_idm22759.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="../../BOOST_PARSER_DEFINE_RULES.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/callback_parse_idm22700.html b/doc/html/boost/parser/callback_parse_idm23049.html
similarity index 91%
rename from doc/html/boost/parser/callback_parse_idm22700.html
rename to doc/html/boost/parser/callback_parse_idm23049.html
index e1ccdf46..151de79c 100644
--- a/doc/html/boost/parser/callback_parse_idm22700.html
+++ b/doc/html/boost/parser/callback_parse_idm23049.html
@@ -6,16 +6,16 @@
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-<link rel="prev" href="callback_prefix_p_idm22661.html" title="Function template callback_prefix_parse">
-<link rel="next" href="callback_prefix_p_idm22737.html" title="Function template callback_prefix_parse">
+<link rel="prev" href="callback_prefix_p_idm23010.html" title="Function template callback_prefix_parse">
+<link rel="next" href="callback_prefix_p_idm23086.html" title="Function template callback_prefix_parse">
 <meta name="viewport" content="width=device-width, initial-scale=1">
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 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
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+<a accesskey="p" href="callback_prefix_p_idm23010.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_prefix_p_idm23086.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
-<a name="boost.parser.callback_parse_idm22700"></a><div class="titlepage"></div>
+<a name="boost.parser.callback_parse_idm23049"></a><div class="titlepage"></div>
 <div class="refnamediv">
 <h2><span class="refentrytitle">Function template callback_parse</span></h2>
 <p>boost::parser::callback_parse</p>
@@ -32,7 +32,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
                       <span class="identifier">Callbacks</span> <span class="keyword">const</span> <span class="special">&amp;</span> callbacks<span class="special">,</span> 
                       <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm35567"></a><h2>Description</h2>
+<a name="idm36031"></a><h2>Description</h2>
 <p>Parses <code class="computeroutput">r</code> using <code class="computeroutput">parser</code>, and returns whether the parse was successful. The entire input range <code class="computeroutput">r</code> must be consumed for the parse to be considered successful. When a callback rule <code class="computeroutput">r</code> is successful during the parse, one of two things happens: 1) if <code class="computeroutput">r</code> has an attribute, <code class="computeroutput">callbacks(tag, x)</code> will be called (where <code class="computeroutput">tag</code> is <code class="computeroutput">decltype(r)::tag_type{}</code>, and <code class="computeroutput">x</code> is the attribute produced by <code class="computeroutput">r</code>); or 2) if <code class="computeroutput">r</code> has no attribute, <code class="computeroutput">callbacks(tag)</code> will be called. <code class="computeroutput">Callbacks</code> is expected to be an invocable with the correct overloads required to support all successful rule parses that might occur. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
 </div>
 </div>
@@ -43,7 +43,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="callback_prefix_p_idm22661.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_prefix_p_idm22737.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="callback_prefix_p_idm23010.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_prefix_p_idm23086.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
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 </html>
diff --git a/doc/html/boost/parser/callback_parse_idm22781.html b/doc/html/boost/parser/callback_parse_idm23130.html
similarity index 95%
rename from doc/html/boost/parser/callback_parse_idm22781.html
rename to doc/html/boost/parser/callback_parse_idm23130.html
index 555112c2..35d9ba8d 100644
--- a/doc/html/boost/parser/callback_parse_idm22781.html
+++ b/doc/html/boost/parser/callback_parse_idm23130.html
@@ -6,16 +6,16 @@
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-<link rel="prev" href="callback_prefix_p_idm22737.html" title="Function template callback_prefix_parse">
+<link rel="prev" href="callback_prefix_p_idm23086.html" title="Function template callback_prefix_parse">
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 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="callback_prefix_p_idm22737.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="../../BOOST_PARSER_DEFINE_RULES.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="callback_prefix_p_idm23086.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="../../BOOST_PARSER_DEFINE_RULES.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
-<a name="boost.parser.callback_parse_idm22781"></a><div class="titlepage"></div>
+<a name="boost.parser.callback_parse_idm23130"></a><div class="titlepage"></div>
 <div class="refnamediv">
 <h2><span class="refentrytitle">Function template callback_parse</span></h2>
 <p>boost::parser::callback_parse</p>
@@ -33,7 +33,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
                       <span class="identifier">Callbacks</span> <span class="keyword">const</span> <span class="special">&amp;</span> callbacks<span class="special">,</span> 
                       <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm35763"></a><h2>Description</h2>
+<a name="idm36227"></a><h2>Description</h2>
 <p>Parses <code class="computeroutput">r</code> using <code class="computeroutput">parser</code>, skipping all input recognized by <code class="computeroutput">skip</code> between the application of any two parsers, and returns whether the parse was successful. The entire input range <code class="computeroutput">r</code> must be consumed for the parse to be considered successful. When a callback rule <code class="computeroutput">r</code> is successful during the parse, one of two things happens: 1) if <code class="computeroutput">r</code> has an attribute, <code class="computeroutput">callbacks(tag, x)</code> will be called (where <code class="computeroutput">tag</code> is <code class="computeroutput">decltype(r)::tag_type{}</code>, and <code class="computeroutput">x</code> is the attribute produced by <code class="computeroutput">r</code>); or 2) if <code class="computeroutput">r</code> has no attribute, <code class="computeroutput">callbacks(tag)</code> will be called. <code class="computeroutput">Callbacks</code> is expected to be an invocable with the correct overloads required to support all successful rule parses that might occur. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
 </div>
 </div>
@@ -44,7 +44,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="callback_prefix_p_idm22737.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="../../BOOST_PARSER_DEFINE_RULES.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="callback_prefix_p_idm23086.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="../../BOOST_PARSER_DEFINE_RULES.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
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diff --git a/doc/html/boost/parser/callback_prefix_p_idm22663.html b/doc/html/boost/parser/callback_prefix_p_idm22663.html
deleted file mode 100644
index 9692cf35..00000000
--- a/doc/html/boost/parser/callback_prefix_p_idm22663.html
+++ /dev/null
@@ -1,49 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template callback_prefix_parse</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="parse_idm22631.html" title="Function template parse">
-<link rel="next" href="callback_parse_idm22702.html" title="Function template callback_parse">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="parse_idm22631.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_parse_idm22702.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.callback_prefix_p_idm22663"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template callback_prefix_parse</span></h2>
-<p>boost::parser::callback_prefix_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> Callbacks<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_iter_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span> <span class="special">&amp;&amp;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_equality_comparable_with_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">callback_prefix_parse</span><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span> first<span class="special">,</span> <span class="identifier">S</span> last<span class="special">,</span> 
-                             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                             <span class="identifier">Callbacks</span> <span class="keyword">const</span> <span class="special">&amp;</span> callbacks<span class="special">,</span> 
-                             <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35487"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">[first, last)</code> using <code class="computeroutput">parser</code>, and returns whether the parse was successful. When a callback rule <code class="computeroutput">r</code> is successful during the parse, one of two things happens: 1) if <code class="computeroutput">r</code> has an attribute, <code class="computeroutput">callbacks(tag, x)</code> will be called (where <code class="computeroutput">tag</code> is <code class="computeroutput">decltype(r)::tag_type{}</code>, and <code class="computeroutput">x</code> is the attribute produced by <code class="computeroutput">r</code>); or 2) if <code class="computeroutput">r</code> has no attribute, <code class="computeroutput">callbacks(tag)</code> will be called. <code class="computeroutput">Callbacks</code> is expected to be an invocable with the correct overloads required to support all successful rule parses that might occur. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template callback_prefix_parse</span></h2>
-<p>boost::parser::callback_prefix_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> Callbacks<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_iter_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span> <span class="special">&amp;&amp;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_equality_comparable_with_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">callback_prefix_parse</span><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span> first<span class="special">,</span> <span class="identifier">S</span> last<span class="special">,</span> 
-                             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                             <span class="identifier">Callbacks</span> <span class="keyword">const</span> <span class="special">&amp;</span> callbacks<span class="special">,</span> 
-                             <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35489"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">[first, last)</code> using <code class="computeroutput">parser</code>, and returns whether the parse was successful. When a callback rule <code class="computeroutput">r</code> is successful during the parse, one of two things happens: 1) if <code class="computeroutput">r</code> has an attribute, <code class="computeroutput">callbacks(tag, x)</code> will be called (where <code class="computeroutput">tag</code> is <code class="computeroutput">decltype(r)::tag_type{}</code>, and <code class="computeroutput">x</code> is the attribute produced by <code class="computeroutput">r</code>); or 2) if <code class="computeroutput">r</code> has no attribute, <code class="computeroutput">callbacks(tag)</code> will be called. <code class="computeroutput">Callbacks</code> is expected to be an invocable with the correct overloads required to support all successful rule parses that might occur. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
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diff --git a/doc/html/boost/parser/callback_prefix_p_idm22666.html b/doc/html/boost/parser/callback_prefix_p_idm22666.html
deleted file mode 100644
index 7b317715..00000000
--- a/doc/html/boost/parser/callback_prefix_p_idm22666.html
+++ /dev/null
@@ -1,49 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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-</div>
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-<a name="boost.parser.callback_prefix_p_idm22666"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template callback_prefix_parse</span></h2>
-<p>boost::parser::callback_prefix_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> Callbacks<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_iter_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span> <span class="special">&amp;&amp;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_equality_comparable_with_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">callback_prefix_parse</span><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span> first<span class="special">,</span> <span class="identifier">S</span> last<span class="special">,</span> 
-                             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                             <span class="identifier">Callbacks</span> <span class="keyword">const</span> <span class="special">&amp;</span> callbacks<span class="special">,</span> 
-                             <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35490"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">[first, last)</code> using <code class="computeroutput">parser</code>, and returns whether the parse was successful. When a callback rule <code class="computeroutput">r</code> is successful during the parse, one of two things happens: 1) if <code class="computeroutput">r</code> has an attribute, <code class="computeroutput">callbacks(tag, x)</code> will be called (where <code class="computeroutput">tag</code> is <code class="computeroutput">decltype(r)::tag_type{}</code>, and <code class="computeroutput">x</code> is the attribute produced by <code class="computeroutput">r</code>); or 2) if <code class="computeroutput">r</code> has no attribute, <code class="computeroutput">callbacks(tag)</code> will be called. <code class="computeroutput">Callbacks</code> is expected to be an invocable with the correct overloads required to support all successful rule parses that might occur. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="parse_idm22634.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_parse_idm22705.html"><img src="../../images/next.png" alt="Next"></a>
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diff --git a/doc/html/boost/parser/callback_prefix_p_idm22667.html b/doc/html/boost/parser/callback_prefix_p_idm22667.html
deleted file mode 100644
index 6763ad1d..00000000
--- a/doc/html/boost/parser/callback_prefix_p_idm22667.html
+++ /dev/null
@@ -1,49 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
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-<a name="boost.parser.callback_prefix_p_idm22667"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template callback_prefix_parse</span></h2>
-<p>boost::parser::callback_prefix_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> Callbacks<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_iter_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span> <span class="special">&amp;&amp;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_equality_comparable_with_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">callback_prefix_parse</span><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span> first<span class="special">,</span> <span class="identifier">S</span> last<span class="special">,</span> 
-                             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                             <span class="identifier">Callbacks</span> <span class="keyword">const</span> <span class="special">&amp;</span> callbacks<span class="special">,</span> 
-                             <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35490"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">[first, last)</code> using <code class="computeroutput">parser</code>, and returns whether the parse was successful. When a callback rule <code class="computeroutput">r</code> is successful during the parse, one of two things happens: 1) if <code class="computeroutput">r</code> has an attribute, <code class="computeroutput">callbacks(tag, x)</code> will be called (where <code class="computeroutput">tag</code> is <code class="computeroutput">decltype(r)::tag_type{}</code>, and <code class="computeroutput">x</code> is the attribute produced by <code class="computeroutput">r</code>); or 2) if <code class="computeroutput">r</code> has no attribute, <code class="computeroutput">callbacks(tag)</code> will be called. <code class="computeroutput">Callbacks</code> is expected to be an invocable with the correct overloads required to support all successful rule parses that might occur. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="parse_idm22635.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_parse_idm22706.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/callback_prefix_p_idm22683.html b/doc/html/boost/parser/callback_prefix_p_idm22683.html
deleted file mode 100644
index eecf60f4..00000000
--- a/doc/html/boost/parser/callback_prefix_p_idm22683.html
+++ /dev/null
@@ -1,49 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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-<a name="boost.parser.callback_prefix_p_idm22683"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template callback_prefix_parse</span></h2>
-<p>boost::parser::callback_prefix_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> Callbacks<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_iter_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span> <span class="special">&amp;&amp;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_equality_comparable_with_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">callback_prefix_parse</span><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span> first<span class="special">,</span> <span class="identifier">S</span> last<span class="special">,</span> 
-                             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                             <span class="identifier">Callbacks</span> <span class="keyword">const</span> <span class="special">&amp;</span> callbacks<span class="special">,</span> 
-                             <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35506"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">[first, last)</code> using <code class="computeroutput">parser</code>, and returns whether the parse was successful. When a callback rule <code class="computeroutput">r</code> is successful during the parse, one of two things happens: 1) if <code class="computeroutput">r</code> has an attribute, <code class="computeroutput">callbacks(tag, x)</code> will be called (where <code class="computeroutput">tag</code> is <code class="computeroutput">decltype(r)::tag_type{}</code>, and <code class="computeroutput">x</code> is the attribute produced by <code class="computeroutput">r</code>); or 2) if <code class="computeroutput">r</code> has no attribute, <code class="computeroutput">callbacks(tag)</code> will be called. <code class="computeroutput">Callbacks</code> is expected to be an invocable with the correct overloads required to support all successful rule parses that might occur. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
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-<a name="boost.parser.callback_prefix_p_idm22739"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template callback_prefix_parse</span></h2>
-<p>boost::parser::callback_prefix_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Callbacks<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_iter_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span> <span class="special">&amp;&amp;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_equality_comparable_with_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">callback_prefix_parse</span><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span> first<span class="special">,</span> <span class="identifier">S</span> last<span class="special">,</span> 
-                             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
-                             <span class="identifier">Callbacks</span> <span class="keyword">const</span> <span class="special">&amp;</span> callbacks<span class="special">,</span> 
-                             <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35673"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">[first, last)</code> using <code class="computeroutput">parser</code>, skipping all input recognized by <code class="computeroutput">skip</code> between the application of any two parsers, and returns whether the parse was successful. When a callback rule <code class="computeroutput">r</code> is successful during the parse, one of two things happens: 1) if <code class="computeroutput">r</code> has an attribute, <code class="computeroutput">callbacks(tag, x)</code> will be called (where <code class="computeroutput">tag</code> is <code class="computeroutput">decltype(r)::tag_type{}</code>, and <code class="computeroutput">x</code> is the attribute produced by <code class="computeroutput">r</code>); or 2) if <code class="computeroutput">r</code> has no attribute, <code class="computeroutput">callbacks(tag)</code> will be called. <code class="computeroutput">Callbacks</code> is expected to be an invocable with the correct overloads required to support all successful rule parses that might occur. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="callback_parse_idm22702.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_parse_idm22783.html"><img src="../../images/next.png" alt="Next"></a>
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diff --git a/doc/html/boost/parser/callback_prefix_p_idm22741.html b/doc/html/boost/parser/callback_prefix_p_idm22741.html
deleted file mode 100644
index 140c974c..00000000
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-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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-<a name="boost.parser.callback_prefix_p_idm22741"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template callback_prefix_parse</span></h2>
-<p>boost::parser::callback_prefix_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Callbacks<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_iter_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span> <span class="special">&amp;&amp;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_equality_comparable_with_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">callback_prefix_parse</span><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span> first<span class="special">,</span> <span class="identifier">S</span> last<span class="special">,</span> 
-                             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
-                             <span class="identifier">Callbacks</span> <span class="keyword">const</span> <span class="special">&amp;</span> callbacks<span class="special">,</span> 
-                             <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35675"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">[first, last)</code> using <code class="computeroutput">parser</code>, skipping all input recognized by <code class="computeroutput">skip</code> between the application of any two parsers, and returns whether the parse was successful. When a callback rule <code class="computeroutput">r</code> is successful during the parse, one of two things happens: 1) if <code class="computeroutput">r</code> has an attribute, <code class="computeroutput">callbacks(tag, x)</code> will be called (where <code class="computeroutput">tag</code> is <code class="computeroutput">decltype(r)::tag_type{}</code>, and <code class="computeroutput">x</code> is the attribute produced by <code class="computeroutput">r</code>); or 2) if <code class="computeroutput">r</code> has no attribute, <code class="computeroutput">callbacks(tag)</code> will be called. <code class="computeroutput">Callbacks</code> is expected to be an invocable with the correct overloads required to support all successful rule parses that might occur. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="callback_parse_idm22704.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_parse_idm22785.html"><img src="../../images/next.png" alt="Next"></a>
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deleted file mode 100644
index 978ab47d..00000000
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-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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-</div>
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-<a name="boost.parser.callback_prefix_p_idm22742"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template callback_prefix_parse</span></h2>
-<p>boost::parser::callback_prefix_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Callbacks<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_iter_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span> <span class="special">&amp;&amp;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_equality_comparable_with_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">callback_prefix_parse</span><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span> first<span class="special">,</span> <span class="identifier">S</span> last<span class="special">,</span> 
-                             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
-                             <span class="identifier">Callbacks</span> <span class="keyword">const</span> <span class="special">&amp;</span> callbacks<span class="special">,</span> 
-                             <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35676"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">[first, last)</code> using <code class="computeroutput">parser</code>, skipping all input recognized by <code class="computeroutput">skip</code> between the application of any two parsers, and returns whether the parse was successful. When a callback rule <code class="computeroutput">r</code> is successful during the parse, one of two things happens: 1) if <code class="computeroutput">r</code> has an attribute, <code class="computeroutput">callbacks(tag, x)</code> will be called (where <code class="computeroutput">tag</code> is <code class="computeroutput">decltype(r)::tag_type{}</code>, and <code class="computeroutput">x</code> is the attribute produced by <code class="computeroutput">r</code>); or 2) if <code class="computeroutput">r</code> has no attribute, <code class="computeroutput">callbacks(tag)</code> will be called. <code class="computeroutput">Callbacks</code> is expected to be an invocable with the correct overloads required to support all successful rule parses that might occur. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="callback_parse_idm22705.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_parse_idm22786.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/callback_prefix_p_idm22743.html b/doc/html/boost/parser/callback_prefix_p_idm22743.html
deleted file mode 100644
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-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template callback_prefix_parse</span></h2>
-<p>boost::parser::callback_prefix_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Callbacks<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_iter_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span> <span class="special">&amp;&amp;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_equality_comparable_with_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">callback_prefix_parse</span><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span> first<span class="special">,</span> <span class="identifier">S</span> last<span class="special">,</span> 
-                             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
-                             <span class="identifier">Callbacks</span> <span class="keyword">const</span> <span class="special">&amp;</span> callbacks<span class="special">,</span> 
-                             <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35676"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">[first, last)</code> using <code class="computeroutput">parser</code>, skipping all input recognized by <code class="computeroutput">skip</code> between the application of any two parsers, and returns whether the parse was successful. When a callback rule <code class="computeroutput">r</code> is successful during the parse, one of two things happens: 1) if <code class="computeroutput">r</code> has an attribute, <code class="computeroutput">callbacks(tag, x)</code> will be called (where <code class="computeroutput">tag</code> is <code class="computeroutput">decltype(r)::tag_type{}</code>, and <code class="computeroutput">x</code> is the attribute produced by <code class="computeroutput">r</code>); or 2) if <code class="computeroutput">r</code> has no attribute, <code class="computeroutput">callbacks(tag)</code> will be called. <code class="computeroutput">Callbacks</code> is expected to be an invocable with the correct overloads required to support all successful rule parses that might occur. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="callback_parse_idm22706.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_parse_idm22787.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/callback_prefix_p_idm22759.html b/doc/html/boost/parser/callback_prefix_p_idm22759.html
deleted file mode 100644
index adcb63aa..00000000
--- a/doc/html/boost/parser/callback_prefix_p_idm22759.html
+++ /dev/null
@@ -1,50 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template callback_prefix_parse</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="callback_parse_idm22722.html" title="Function template callback_parse">
-<link rel="next" href="callback_parse_idm22803.html" title="Function template callback_parse">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="callback_parse_idm22722.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_parse_idm22803.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.callback_prefix_p_idm22759"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template callback_prefix_parse</span></h2>
-<p>boost::parser::callback_prefix_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Callbacks<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_iter_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span> <span class="special">&amp;&amp;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_equality_comparable_with_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">callback_prefix_parse</span><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span> first<span class="special">,</span> <span class="identifier">S</span> last<span class="special">,</span> 
-                             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
-                             <span class="identifier">Callbacks</span> <span class="keyword">const</span> <span class="special">&amp;</span> callbacks<span class="special">,</span> 
-                             <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35692"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">[first, last)</code> using <code class="computeroutput">parser</code>, skipping all input recognized by <code class="computeroutput">skip</code> between the application of any two parsers, and returns whether the parse was successful. When a callback rule <code class="computeroutput">r</code> is successful during the parse, one of two things happens: 1) if <code class="computeroutput">r</code> has an attribute, <code class="computeroutput">callbacks(tag, x)</code> will be called (where <code class="computeroutput">tag</code> is <code class="computeroutput">decltype(r)::tag_type{}</code>, and <code class="computeroutput">x</code> is the attribute produced by <code class="computeroutput">r</code>); or 2) if <code class="computeroutput">r</code> has no attribute, <code class="computeroutput">callbacks(tag)</code> will be called. <code class="computeroutput">Callbacks</code> is expected to be an invocable with the correct overloads required to support all successful rule parses that might occur. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="callback_parse_idm22722.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_parse_idm22803.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/callback_prefix_p_idm22661.html b/doc/html/boost/parser/callback_prefix_p_idm23010.html
similarity index 92%
rename from doc/html/boost/parser/callback_prefix_p_idm22661.html
rename to doc/html/boost/parser/callback_prefix_p_idm23010.html
index 3ad3f662..3fb2f8d3 100644
--- a/doc/html/boost/parser/callback_prefix_p_idm22661.html
+++ b/doc/html/boost/parser/callback_prefix_p_idm23010.html
@@ -6,16 +6,16 @@
 <meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
 <link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="parse_idm22629.html" title="Function template parse">
-<link rel="next" href="callback_parse_idm22700.html" title="Function template callback_parse">
+<link rel="prev" href="parse_idm22978.html" title="Function template parse">
+<link rel="next" href="callback_parse_idm23049.html" title="Function template callback_parse">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="parse_idm22629.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_parse_idm22700.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="parse_idm22978.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_parse_idm23049.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
-<a name="boost.parser.callback_prefix_p_idm22661"></a><div class="titlepage"></div>
+<a name="boost.parser.callback_prefix_p_idm23010"></a><div class="titlepage"></div>
 <div class="refnamediv">
 <h2><span class="refentrytitle">Function template callback_prefix_parse</span></h2>
 <p>boost::parser::callback_prefix_parse</p>
@@ -32,7 +32,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
                              <span class="identifier">Callbacks</span> <span class="keyword">const</span> <span class="special">&amp;</span> callbacks<span class="special">,</span> 
                              <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm35485"></a><h2>Description</h2>
+<a name="idm35949"></a><h2>Description</h2>
 <p>Parses <code class="computeroutput">[first, last)</code> using <code class="computeroutput">parser</code>, and returns whether the parse was successful. When a callback rule <code class="computeroutput">r</code> is successful during the parse, one of two things happens: 1) if <code class="computeroutput">r</code> has an attribute, <code class="computeroutput">callbacks(tag, x)</code> will be called (where <code class="computeroutput">tag</code> is <code class="computeroutput">decltype(r)::tag_type{}</code>, and <code class="computeroutput">x</code> is the attribute produced by <code class="computeroutput">r</code>); or 2) if <code class="computeroutput">r</code> has no attribute, <code class="computeroutput">callbacks(tag)</code> will be called. <code class="computeroutput">Callbacks</code> is expected to be an invocable with the correct overloads required to support all successful rule parses that might occur. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
 </div>
 </div>
@@ -43,7 +43,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="parse_idm22629.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_parse_idm22700.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="parse_idm22978.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_parse_idm23049.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/callback_prefix_p_idm22737.html b/doc/html/boost/parser/callback_prefix_p_idm23086.html
similarity index 92%
rename from doc/html/boost/parser/callback_prefix_p_idm22737.html
rename to doc/html/boost/parser/callback_prefix_p_idm23086.html
index 731f1ad6..b2fe7910 100644
--- a/doc/html/boost/parser/callback_prefix_p_idm22737.html
+++ b/doc/html/boost/parser/callback_prefix_p_idm23086.html
@@ -6,16 +6,16 @@
 <meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
 <link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="callback_parse_idm22700.html" title="Function template callback_parse">
-<link rel="next" href="callback_parse_idm22781.html" title="Function template callback_parse">
+<link rel="prev" href="callback_parse_idm23049.html" title="Function template callback_parse">
+<link rel="next" href="callback_parse_idm23130.html" title="Function template callback_parse">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="callback_parse_idm22700.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_parse_idm22781.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="callback_parse_idm23049.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_parse_idm23130.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
-<a name="boost.parser.callback_prefix_p_idm22737"></a><div class="titlepage"></div>
+<a name="boost.parser.callback_prefix_p_idm23086"></a><div class="titlepage"></div>
 <div class="refnamediv">
 <h2><span class="refentrytitle">Function template callback_prefix_parse</span></h2>
 <p>boost::parser::callback_prefix_parse</p>
@@ -33,7 +33,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
                              <span class="identifier">Callbacks</span> <span class="keyword">const</span> <span class="special">&amp;</span> callbacks<span class="special">,</span> 
                              <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm35671"></a><h2>Description</h2>
+<a name="idm36135"></a><h2>Description</h2>
 <p>Parses <code class="computeroutput">[first, last)</code> using <code class="computeroutput">parser</code>, skipping all input recognized by <code class="computeroutput">skip</code> between the application of any two parsers, and returns whether the parse was successful. When a callback rule <code class="computeroutput">r</code> is successful during the parse, one of two things happens: 1) if <code class="computeroutput">r</code> has an attribute, <code class="computeroutput">callbacks(tag, x)</code> will be called (where <code class="computeroutput">tag</code> is <code class="computeroutput">decltype(r)::tag_type{}</code>, and <code class="computeroutput">x</code> is the attribute produced by <code class="computeroutput">r</code>); or 2) if <code class="computeroutput">r</code> has no attribute, <code class="computeroutput">callbacks(tag)</code> will be called. <code class="computeroutput">Callbacks</code> is expected to be an invocable with the correct overloads required to support all successful rule parses that might occur. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
 </div>
 </div>
@@ -44,7 +44,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="callback_parse_idm22700.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_parse_idm22781.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="callback_parse_idm23049.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_parse_idm23130.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/callback_rule.html b/doc/html/boost/parser/callback_rule.html
index 24c7a373..4b9bbcd1 100644
--- a/doc/html/boost/parser/callback_rule.html
+++ b/doc/html/boost/parser/callback_rule.html
@@ -28,27 +28,27 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 <span class="keyword">struct</span> <a class="link" href="callback_rule.html" title="Struct template callback_rule">callback_rule</a> <span class="special">:</span> <span class="keyword">public</span> boost::parser::parser_interface&lt; rule_parser&lt; true, TagType, Attribute, LocalState, ParamsTuple &gt; &gt;
 <span class="special">{</span>
   <span class="comment">// <a class="link" href="callback_rule.html#boost.parser.callback_ruleconstruct-copy-destruct">construct/copy/destruct</a></span>
-  <a class="link" href="callback_rule.html#idm18871-bb"><span class="identifier">callback_rule</span></a><span class="special">(</span><span class="keyword">char</span> <span class="keyword">const</span> <span class="special">*</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="callback_rule.html#idm19141-bb"><span class="identifier">callback_rule</span></a><span class="special">(</span><span class="keyword">char</span> <span class="keyword">const</span> <span class="special">*</span><span class="special">)</span><span class="special">;</span>
 
-  <span class="comment">// <a class="link" href="callback_rule.html#idm18860-bb">public member functions</a></span>
+  <span class="comment">// <a class="link" href="callback_rule.html#idm19130-bb">public member functions</a></span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span><span class="special">...</span> Ts<span class="special">&gt;</span> 
-    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="callback_rule.html#idm18861-bb"><span class="identifier">with</span></a><span class="special">(</span><span class="identifier">T</span> <span class="special">&amp;&amp;</span><span class="special">,</span> <span class="identifier">Ts</span> <span class="special">&amp;&amp;</span><span class="special">...</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="callback_rule.html#idm19131-bb"><span class="identifier">with</span></a><span class="special">(</span><span class="identifier">T</span> <span class="special">&amp;&amp;</span><span class="special">,</span> <span class="identifier">Ts</span> <span class="special">&amp;&amp;</span><span class="special">...</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm22721"></a><h2>Description</h2>
+<a name="idm22955"></a><h2>Description</h2>
 <p>A type used to declare named parsing rules that support reporting of attributes via callback. The <code class="computeroutput">TagType</code> template parameter is used to associate a particular <code class="computeroutput">rule</code> with the <code class="computeroutput"><a class="link" href="rule_parser.html" title="Struct template rule_parser">rule_parser</a></code> used during parsing. </p>
 <div class="refsect2">
-<a name="idm22728"></a><h3>
+<a name="idm22962"></a><h3>
 <a name="boost.parser.callback_ruleconstruct-copy-destruct"></a><code class="computeroutput">callback_rule</code> 
         public
        construct/copy/destruct</h3>
-<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><a name="idm18871-bb"></a><span class="identifier">callback_rule</span><span class="special">(</span><span class="keyword">char</span> <span class="keyword">const</span> <span class="special">*</span> name<span class="special">)</span><span class="special">;</span></pre></li></ol></div>
+<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><a name="idm19141-bb"></a><span class="identifier">callback_rule</span><span class="special">(</span><span class="keyword">char</span> <span class="keyword">const</span> <span class="special">*</span> name<span class="special">)</span><span class="special">;</span></pre></li></ol></div>
 </div>
 <div class="refsect2">
-<a name="idm22744"></a><h3>
-<a name="idm18860-bb"></a><code class="computeroutput">callback_rule</code> public member functions</h3>
+<a name="idm22978"></a><h3>
+<a name="idm19130-bb"></a><code class="computeroutput">callback_rule</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span><span class="special">...</span> Ts<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm18861-bb"></a><span class="identifier">with</span><span class="special">(</span><span class="identifier">T</span> <span class="special">&amp;&amp;</span> x<span class="special">,</span> <span class="identifier">Ts</span> <span class="special">&amp;&amp;</span><span class="special">...</span> xs<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li></ol></div>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm19131-bb"></a><span class="identifier">with</span><span class="special">(</span><span class="identifier">T</span> <span class="special">&amp;&amp;</span> x<span class="special">,</span> <span class="identifier">Ts</span> <span class="special">&amp;&amp;</span><span class="special">...</span> xs<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li></ol></div>
 </div>
 </div>
 </div>
diff --git a/doc/html/boost/parser/char_.html b/doc/html/boost/parser/char_.html
index 3f49cf9a..e18b2f6d 100644
--- a/doc/html/boost/parser/char_.html
+++ b/doc/html/boost/parser/char_.html
@@ -25,7 +25,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="emphasis"><em><span class="identifier">unspecified</span></em></span> char_<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm32986"></a><h2>Description</h2>
+<a name="idm33429"></a><h2>Description</h2>
 <p>The literal code point parser. The produced attribute is the type of the matched code point. This parser can be used to create code point parsers that match one or more specific code point values, by calling it with: a single value comparable to a code point; a set of code point values in a string; a closed range of code point values <code class="computeroutput">[lo, hi]</code>, or a set of code point values passed as a range. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/char_parser.html b/doc/html/boost/parser/char_parser.html
index 747070a3..58ad5a8c 100644
--- a/doc/html/boost/parser/char_parser.html
+++ b/doc/html/boost/parser/char_parser.html
@@ -29,73 +29,73 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
   <span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">conditional_t</span><span class="special">&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same_v</span><span class="special">&lt;</span> <span class="identifier">AttributeType</span><span class="special">,</span> <span class="keyword">void</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">decay_t</span><span class="special">&lt;</span> <span class="identifier">T</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">AttributeType</span> <span class="special">&gt;</span> <a name="boost.parser.char_parser.attribute_t"></a><span class="identifier">attribute_t</span><span class="special">;</span>
 
   <span class="comment">// <a class="link" href="char_parser.html#boost.parser.char_parserconstruct-copy-destruct">construct/copy/destruct</a></span>
-  <a class="link" href="char_parser.html#idm18990-bb"><span class="identifier">char_parser</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
-  <a class="link" href="char_parser.html#idm18991-bb"><span class="identifier">char_parser</span></a><span class="special">(</span><span class="identifier">Expected</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="char_parser.html#idm19260-bb"><span class="identifier">char_parser</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="char_parser.html#idm19261-bb"><span class="identifier">char_parser</span></a><span class="special">(</span><span class="identifier">Expected</span><span class="special">)</span><span class="special">;</span>
 
-  <span class="comment">// <a class="link" href="char_parser.html#idm18888-bb">public member functions</a></span>
+  <span class="comment">// <a class="link" href="char_parser.html#idm19158-bb">public member functions</a></span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-    <span class="keyword">auto</span> <a class="link" href="char_parser.html#idm18889-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">auto</span> <a class="link" href="char_parser.html#idm19159-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="char_parser.html#idm18913-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">void</span> <a class="link" href="char_parser.html#idm19183-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">,</span> 
               <span class="identifier">Attribute</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> 
            <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="special">!</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="char_parser.html#idm18940-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">T</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="char_parser.html#idm19210-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">T</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> LoType<span class="special">,</span> <span class="keyword">typename</span> HiType<span class="special">&gt;</span> 
-    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="char_parser.html#idm18955-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">LoType</span><span class="special">,</span> <span class="identifier">HiType</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="char_parser.html#idm19225-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">LoType</span><span class="special">,</span> <span class="identifier">HiType</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> 
            <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="char_parser.html#idm18971-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="char_parser.html#idm19241-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
 
   <span class="comment">// public data members</span>
   <span class="identifier">Expected</span> <span class="identifier">expected_</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm23014"></a><h2>Description</h2>
+<a name="idm23248"></a><h2>Description</h2>
 <p>Matches a single code point. If <code class="computeroutput">AttributeType</code> is not <code class="computeroutput">void</code>, <code class="computeroutput">AttributeType</code> is the attribute type produced; otherwise, the attribute type is the decayed type of the matched code point. The parse fails only if the parser is constructed with a specific set of expected code point values that does not include the matched code point <code class="computeroutput">CP</code>. </p>
 <div class="refsect2">
-<a name="idm23021"></a><h3>
+<a name="idm23255"></a><h3>
 <a name="boost.parser.char_parserconstruct-copy-destruct"></a><code class="computeroutput">char_parser</code> 
         public
        construct/copy/destruct</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
-<li class="listitem"><pre class="literallayout"><a name="idm18990-bb"></a><span class="identifier">char_parser</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><a name="idm18991-bb"></a><span class="identifier">char_parser</span><span class="special">(</span><span class="identifier">Expected</span> expected<span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a name="idm19260-bb"></a><span class="identifier">char_parser</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a name="idm19261-bb"></a><span class="identifier">char_parser</span><span class="special">(</span><span class="identifier">Expected</span> expected<span class="special">)</span><span class="special">;</span></pre></li>
 </ol></div>
 </div>
 <div class="refsect2">
-<a name="idm23043"></a><h3>
-<a name="idm18888-bb"></a><code class="computeroutput">char_parser</code> public member functions</h3>
+<a name="idm23277"></a><h3>
+<a name="idm19158-bb"></a><code class="computeroutput">char_parser</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-  <span class="keyword">auto</span> <a name="idm18889-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="keyword">auto</span> <a name="idm19159-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm18913-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="keyword">void</span> <a name="idm19183-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">,</span> <span class="identifier">Attribute</span> <span class="special">&amp;</span> retval<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 <li class="listitem">
 <pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> 
          <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="special">!</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm18940-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">T</span> x<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm19210-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">T</span> x<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code></code> containing a <code class="computeroutput"><code class="computeroutput"><a class="link" href="char_parser.html" title="Struct template char_parser">char_parser</a></code></code> that matches <code class="computeroutput">x</code>. </p>
 </li>
 <li class="listitem">
 <pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> LoType<span class="special">,</span> <span class="keyword">typename</span> HiType<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm18955-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">LoType</span> lo<span class="special">,</span> <span class="identifier">HiType</span> hi<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm19225-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">LoType</span> lo<span class="special">,</span> <span class="identifier">HiType</span> hi<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code></code> containing a <code class="computeroutput"><code class="computeroutput"><a class="link" href="char_parser.html" title="Struct template char_parser">char_parser</a></code></code> that matches any value in <code class="computeroutput">[lo, hi]</code>. </p>
 </li>
 <li class="listitem">
 <pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> 
          <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm18971-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span> r<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm19241-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span> r<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code></code> containing a <code class="computeroutput"><code class="computeroutput"><a class="link" href="char_parser.html" title="Struct template char_parser">char_parser</a></code></code> that matches one of the values in <code class="computeroutput">r</code>. If the character being matched during the parse is a 4-byte value, the elements of <code class="computeroutput">r</code> are transcoded from their presumed encoding to UTF-32 during the comparison. Otherwise, the character begin matched is directly compared to the elements of <code class="computeroutput">r</code>. The presumed encoding of <code class="computeroutput">r</code> is considered UTF-8, UTF-16, or UTF-32, if the size of the elements of <code class="computeroutput">r</code> are 1-, 2- or 4-bytes in size, respectively. </p>
 </li>
 </ol></div>
diff --git a/doc/html/boost/parser/container.html b/doc/html/boost/parser/container.html
index fd3eab6c..d2d98214 100644
--- a/doc/html/boost/parser/container.html
+++ b/doc/html/boost/parser/container.html
@@ -6,13 +6,13 @@
 <meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
 <link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="enable_variant.html" title="Global enable_variant">
+<link rel="prev" href="trace.html" title="Type trace">
 <link rel="next" href="_p.html" title="Global _p">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="enable_variant.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="_p.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="trace.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="_p.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
 <a name="boost.parser.container"></a><div class="titlepage"></div>
@@ -32,7 +32,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="enable_variant.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="_p.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="trace.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="_p.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/cp.html b/doc/html/boost/parser/cp.html
index 74f120af..6771baf4 100644
--- a/doc/html/boost/parser/cp.html
+++ b/doc/html/boost/parser/cp.html
@@ -25,7 +25,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="emphasis"><em><span class="identifier">unspecified</span></em></span> cp<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm33004"></a><h2>Description</h2>
+<a name="idm33447"></a><h2>Description</h2>
 <p>The literal code point parser. It produces a 32-bit unsigned integer attribute. This parser can be used to create code point parsers that match one or more specific code point values, by calling it with: a single value comparable to a code point; a set of code point values in a string; a closed range of code point values <code class="computeroutput">[lo, hi]</code>, or a set of code point values passed as a range. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/cu.html b/doc/html/boost/parser/cu.html
index f5c56370..8aa09014 100644
--- a/doc/html/boost/parser/cu.html
+++ b/doc/html/boost/parser/cu.html
@@ -25,7 +25,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="emphasis"><em><span class="identifier">unspecified</span></em></span> cu<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm33022"></a><h2>Description</h2>
+<a name="idm33465"></a><h2>Description</h2>
 <p>The literal code unit parser. It produces a <code class="computeroutput">char</code> attribute. This parser can be used to create code unit parsers that match one or more specific code unit values, by calling it with: a single value comparable to a code unit; a set of code unit values in a string; a closed range of code unit values <code class="computeroutput">[lo, hi]</code>, or a set of code unit values passed as a range. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/default_error_handler.html b/doc/html/boost/parser/default_error_handler.html
index 0d80b1d0..65a2f141 100644
--- a/doc/html/boost/parser/default_error_handler.html
+++ b/doc/html/boost/parser/default_error_handler.html
@@ -26,46 +26,46 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span>
 <span class="keyword">struct</span> <a class="link" href="default_error_handler.html" title="Struct default_error_handler">default_error_handler</a> <span class="special">{</span>
   <span class="comment">// <a class="link" href="default_error_handler.html#boost.parser.default_error_handlerconstruct-copy-destruct">construct/copy/destruct</a></span>
-  <a class="link" href="default_error_handler.html#idm18462-bb"><span class="identifier">default_error_handler</span></a><span class="special">(</span><span class="special">)</span> <span class="special">=</span> <span class="keyword">default</span><span class="special">;</span>
+  <a class="link" href="default_error_handler.html#idm18732-bb"><span class="identifier">default_error_handler</span></a><span class="special">(</span><span class="special">)</span> <span class="special">=</span> <span class="keyword">default</span><span class="special">;</span>
 
-  <span class="comment">// <a class="link" href="default_error_handler.html#idm18409-bb">public member functions</a></span>
+  <span class="comment">// <a class="link" href="default_error_handler.html#idm18679-bb">public member functions</a></span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">&gt;</span> 
     <span class="identifier">error_handler_result</span> 
-    <a class="link" href="default_error_handler.html#idm18410-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">Iter</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> <a class="link" href="parse_error.html" title="Struct template parse_error">parse_error</a><span class="special">&lt;</span> <span class="identifier">Iter</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+    <a class="link" href="default_error_handler.html#idm18680-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">Iter</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> <a class="link" href="parse_error.html" title="Struct template parse_error">parse_error</a><span class="special">&lt;</span> <span class="identifier">Iter</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="default_error_handler.html#idm18428-bb"><span class="identifier">diagnose</span></a><span class="special">(</span><span class="identifier">diagnostic_kind</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Iter</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+    <span class="keyword">void</span> <a class="link" href="default_error_handler.html#idm18698-bb"><span class="identifier">diagnose</span></a><span class="special">(</span><span class="identifier">diagnostic_kind</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Iter</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="default_error_handler.html#idm18447-bb"><span class="identifier">diagnose</span></a><span class="special">(</span><span class="identifier">diagnostic_kind</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+    <span class="keyword">void</span> <a class="link" href="default_error_handler.html#idm18717-bb"><span class="identifier">diagnose</span></a><span class="special">(</span><span class="identifier">diagnostic_kind</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm18317"></a><h2>Description</h2>
+<a name="idm18543"></a><h2>Description</h2>
 <p>The error handler used when the user does not specify a custom one. This error handler prints warnings and errors to <code class="computeroutput">std::cerr</code>, and does not have an associcated filename. </p>
 <div class="refsect2">
-<a name="idm18321"></a><h3>
+<a name="idm18547"></a><h3>
 <a name="boost.parser.default_error_handlerconstruct-copy-destruct"></a><code class="computeroutput">default_error_handler</code> 
         public
        construct/copy/destruct</h3>
-<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><a name="idm18462-bb"></a><span class="identifier">default_error_handler</span><span class="special">(</span><span class="special">)</span> <span class="special">=</span> <span class="keyword">default</span><span class="special">;</span></pre></li></ol></div>
+<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><a name="idm18732-bb"></a><span class="identifier">default_error_handler</span><span class="special">(</span><span class="special">)</span> <span class="special">=</span> <span class="keyword">default</span><span class="special">;</span></pre></li></ol></div>
 </div>
 <div class="refsect2">
-<a name="idm18336"></a><h3>
-<a name="idm18409-bb"></a><code class="computeroutput">default_error_handler</code> public member functions</h3>
+<a name="idm18562"></a><h3>
+<a name="idm18679-bb"></a><code class="computeroutput">default_error_handler</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
 <li class="listitem">
 <pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">&gt;</span> 
   <span class="identifier">error_handler_result</span> 
-  <a name="idm18410-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">Iter</span> first<span class="special">,</span> <span class="identifier">Sentinel</span> last<span class="special">,</span> <a class="link" href="parse_error.html" title="Struct template parse_error">parse_error</a><span class="special">&lt;</span> <span class="identifier">Iter</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> e<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
+  <a name="idm18680-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">Iter</span> first<span class="special">,</span> <span class="identifier">Sentinel</span> last<span class="special">,</span> <a class="link" href="parse_error.html" title="Struct template parse_error">parse_error</a><span class="special">&lt;</span> <span class="identifier">Iter</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> e<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
 <p>Handles a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parse_error.html" title="Struct template parse_error">parse_error</a></code></code> exception thrown during parsing. A formatted parse-expectation failure is printed to <code class="computeroutput">std::cerr</code>. Always returns <code class="computeroutput">error_handler_result::fail</code>. </p>
 </li>
 <li class="listitem">
 <pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm18428-bb"></a><span class="identifier">diagnose</span><span class="special">(</span><span class="identifier">diagnostic_kind</span> kind<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
+  <span class="keyword">void</span> <a name="idm18698-bb"></a><span class="identifier">diagnose</span><span class="special">(</span><span class="identifier">diagnostic_kind</span> kind<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
                 <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">Iter</span> it<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
 <p>Prints <code class="computeroutput">message</code> to <code class="computeroutput">std::cerr</code>. The diagnostic is printed with the given <code class="computeroutput">kind</code>, indicating the location as being at <code class="computeroutput">it</code>. This must be called within a parser semantic action, providing the parse context. </p>
 </li>
 <li class="listitem">
 <pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm18447-bb"></a><span class="identifier">diagnose</span><span class="special">(</span><span class="identifier">diagnostic_kind</span> kind<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
+  <span class="keyword">void</span> <a name="idm18717-bb"></a><span class="identifier">diagnose</span><span class="special">(</span><span class="identifier">diagnostic_kind</span> kind<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
                 <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
 <p>Prints <code class="computeroutput">message</code> to <code class="computeroutput">std::cerr</code>. The diagnostic is printed with the given <code class="computeroutput">kind</code>, at no particular location. This must be called within a parser semantic action, providing the parse context. </p>
 </li>
diff --git a/doc/html/boost/parser/delimited_seq_parser.html b/doc/html/boost/parser/delimited_seq_parser.html
index 3709b3a6..d52e43b4 100644
--- a/doc/html/boost/parser/delimited_seq_parser.html
+++ b/doc/html/boost/parser/delimited_seq_parser.html
@@ -28,19 +28,19 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
   <span class="keyword">public</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">parser</span><span class="special">::</span><span class="identifier">repeat_parser</span><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">DelimiterParser</span> <span class="special">&gt;</span>
 <span class="special">{</span>
   <span class="comment">// <a class="link" href="delimited_seq_parser.html#boost.parser.delimited_seq_parserconstruct-copy-destruct">construct/copy/destruct</a></span>
-  <a class="link" href="delimited_seq_parser.html#idm19018-bb"><span class="identifier">delimited_seq_parser</span></a><span class="special">(</span><span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">DelimiterParser</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="delimited_seq_parser.html#idm19288-bb"><span class="identifier">delimited_seq_parser</span></a><span class="special">(</span><span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">DelimiterParser</span><span class="special">)</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm23308"></a><h2>Description</h2>
+<a name="idm23542"></a><h2>Description</h2>
 <p>Repeats the application of another parser <code class="computeroutput">p</code> of type <code class="computeroutput">Parser</code>, <code class="computeroutput">[1, Inf)</code> times, applying a parser <code class="computeroutput">d</code> of type <code class="computeroutput">DelimiterParser</code> in between each pair of applications of <code class="computeroutput">p</code>. The parse succeeds iff <code class="computeroutput">p</code> succeeds at least once, and <code class="computeroutput">d</code> succeeds each time it is applied. The attribute produced is a sequence of the type of attribute produced by <code class="computeroutput">Parser</code>.</p>
 <p>A simplified <code class="computeroutput"><a class="link" href="repeat_parser.html" title="Struct template repeat_parser">repeat_parser</a></code> that applies <code class="computeroutput">parser</code> zero or more times, with <code class="computeroutput">delimiter_parser</code> applied before each application of <code class="computeroutput">parser</code> after the first. <br>
  </p>
 <div class="refsect2">
-<a name="idm23327"></a><h3>
+<a name="idm23561"></a><h3>
 <a name="boost.parser.delimited_seq_parserconstruct-copy-destruct"></a><code class="computeroutput">delimited_seq_parser</code> 
         public
        construct/copy/destruct</h3>
-<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><a name="idm19018-bb"></a><span class="identifier">delimited_seq_parser</span><span class="special">(</span><span class="identifier">Parser</span> parser<span class="special">,</span> <span class="identifier">DelimiterParser</span> delimiter_parser<span class="special">)</span><span class="special">;</span></pre></li></ol></div>
+<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><a name="idm19288-bb"></a><span class="identifier">delimited_seq_parser</span><span class="special">(</span><span class="identifier">Parser</span> parser<span class="special">,</span> <span class="identifier">DelimiterParser</span> delimiter_parser<span class="special">)</span><span class="special">;</span></pre></li></ol></div>
 </div>
 </div>
 </div>
diff --git a/doc/html/boost/parser/diagnostic_kind.html b/doc/html/boost/parser/diagnostic_kind.html
index 7af15490..fdca53d7 100644
--- a/doc/html/boost/parser/diagnostic_kind.html
+++ b/doc/html/boost/parser/diagnostic_kind.html
@@ -7,12 +7,12 @@
 <link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../header/boost/parser/error_handling_fwd_hpp.html" title="Header &lt;boost/parser/error_handling_fwd.hpp&gt;">
 <link rel="prev" href="error_handler_result.html" title="Type error_handler_result">
-<link rel="next" href="write_formatted_m_idm18608.html" title="Function template write_formatted_message">
+<link rel="next" href="write_formatted_m_idm18878.html" title="Function template write_formatted_message">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="error_handler_result.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="write_formatted_m_idm18608.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="error_handler_result.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="write_formatted_m_idm18878.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
 <a name="boost.parser.diagnostic_kind"></a><div class="titlepage"></div>
@@ -27,7 +27,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 <span class="keyword">enum</span> <span class="identifier">diagnostic_kind</span> <span class="special">{</span> error, <a class="link" href="diagnostic_kind.html#boost.parser.diagnostic_kind.warning">warning</a> <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm18973"></a><h2>Description</h2>
+<a name="idm19199"></a><h2>Description</h2>
 <p>The kinds of diagnostics that can be handled by an error handler. </p>
 <div class="variablelist"><dl class="variablelist compact">
 <dt><span class="term"><code class="computeroutput">warning</code><a name="boost.parser.diagnostic_kind.warning"></a></span></dt>
@@ -43,7 +43,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="error_handler_result.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="write_formatted_m_idm18608.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="error_handler_result.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="write_formatted_m_idm18878.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/directive.html b/doc/html/boost/parser/directive.html
index e8587350..620b30a9 100644
--- a/doc/html/boost/parser/directive.html
+++ b/doc/html/boost/parser/directive.html
@@ -26,18 +26,18 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">class</span> <span class="special">&gt;</span> <span class="keyword">class</span> Parser<span class="special">&gt;</span> 
 <span class="keyword">struct</span> <a class="link" href="directive.html" title="Struct template directive">directive</a> <span class="special">{</span>
 
-  <span class="comment">// <a class="link" href="directive.html#idm19032-bb">public member functions</a></span>
+  <span class="comment">// <a class="link" href="directive.html#idm19302-bb">public member functions</a></span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser2<span class="special">&gt;</span> 
-    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="directive.html#idm19033-bb"><span class="keyword">operator</span><span class="special">[</span><span class="special">]</span></a><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser2</span> <span class="special">&gt;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="directive.html#idm19303-bb"><span class="keyword">operator</span><span class="special">[</span><span class="special">]</span></a><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser2</span> <span class="special">&gt;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm23388"></a><h2>Description</h2>
+<a name="idm23622"></a><h2>Description</h2>
 <p>Represents a unparameterized higher-order parser (e.g. <code class="computeroutput"><a class="link" href="omit_parser.html" title="Struct template omit_parser">omit_parser</a></code>) as a directive (e.g. <code class="computeroutput">omit[other_parser]</code>). </p>
 <div class="refsect2">
-<a name="idm23394"></a><h3>
-<a name="idm19032-bb"></a><code class="computeroutput">directive</code> public member functions</h3>
+<a name="idm23628"></a><h3>
+<a name="idm19302-bb"></a><code class="computeroutput">directive</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser2<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm19033-bb"></a><span class="keyword">operator</span><span class="special">[</span><span class="special">]</span><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser2</span> <span class="special">&gt;</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li></ol></div>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm19303-bb"></a><span class="keyword">operator</span><span class="special">[</span><span class="special">]</span><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser2</span> <span class="special">&gt;</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li></ol></div>
 </div>
 </div>
 </div>
diff --git a/doc/html/boost/parser/double_.html b/doc/html/boost/parser/double_.html
index ed8cf6bc..25a2f991 100644
--- a/doc/html/boost/parser/double_.html
+++ b/doc/html/boost/parser/double_.html
@@ -25,7 +25,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="keyword">constexpr</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <a class="link" href="float_parser.html" title="Struct template float_parser">float_parser</a><span class="special">&lt;</span> <span class="keyword">double</span> <span class="special">&gt;</span> <span class="special">&gt;</span> double_<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm33451"></a><h2>Description</h2>
+<a name="idm33894"></a><h2>Description</h2>
 <p>The <code class="computeroutput">double</code> parser. Produces a <code class="computeroutput">double</code> attribute. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/enable_optional.html b/doc/html/boost/parser/enable_optional.html
index de916cc6..c5105708 100644
--- a/doc/html/boost/parser/enable_optional.html
+++ b/doc/html/boost/parser/enable_optional.html
@@ -5,14 +5,14 @@
 <link rel="stylesheet" href="../../boostbook.css" type="text/css">
 <meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
 <link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="trace.html" title="Type trace">
-<link rel="next" href="enable_variant.html" title="Global enable_variant">
+<link rel="up" href="../../header/boost/parser/parser_fwd_hpp.html" title="Header &lt;boost/parser/parser_fwd.hpp&gt;">
+<link rel="prev" href="null_sentinel_t.html" title="Type definition null_sentinel_t">
+<link rel="next" href="report_error_idm23209.html" title="Function template _report_error">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="trace.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="enable_variant.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="null_sentinel_t.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="report_error_idm23209.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
 <a name="boost.parser.enable_optional"></a><div class="titlepage"></div>
@@ -21,11 +21,11 @@ <h2><span class="refentrytitle">Global enable_optional</span></h2>
 <p>boost::parser::enable_optional</p>
 </div>
 <h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
+<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_fwd_hpp.html" title="Header &lt;boost/parser/parser_fwd.hpp&gt;">boost/parser/parser_fwd.hpp</a>&gt;
 
 </span><span class="keyword">constexpr</span> <span class="keyword">bool</span> enable_optional<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm32701"></a><h2>Description</h2>
+<a name="idm36396"></a><h2>Description</h2>
 <p>A variable template that indicates that type <code class="computeroutput">T</code> is an optional-like type. </p>
 </div>
 </div>
@@ -36,7 +36,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="trace.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="enable_variant.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="null_sentinel_t.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="report_error_idm23209.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/enable_variant.html b/doc/html/boost/parser/enable_variant.html
deleted file mode 100644
index 8319b810..00000000
--- a/doc/html/boost/parser/enable_variant.html
+++ /dev/null
@@ -1,42 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Global enable_variant</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="enable_optional.html" title="Global enable_optional">
-<link rel="next" href="container.html" title="Global container">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="enable_optional.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="container.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.enable_variant"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Global enable_variant</span></h2>
-<p>boost::parser::enable_variant</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span><span class="keyword">constexpr</span> <span class="keyword">bool</span> enable_variant<span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm32719"></a><h2>Description</h2>
-<p>A variable template that indicates that type <code class="computeroutput">T</code> is an variant-like type. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="enable_optional.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="container.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/eoi.html b/doc/html/boost/parser/eoi.html
index 0ad4ebd0..ee6b1b74 100644
--- a/doc/html/boost/parser/eoi.html
+++ b/doc/html/boost/parser/eoi.html
@@ -25,7 +25,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="keyword">constexpr</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <a class="link" href="eoi_parser.html" title="Struct eoi_parser">eoi_parser</a> <span class="special">&gt;</span> eoi<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm32969"></a><h2>Description</h2>
+<a name="idm33412"></a><h2>Description</h2>
 <p>The end-of-input parser. It matches only the end of input. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/eoi_parser.html b/doc/html/boost/parser/eoi_parser.html
index 2a2c912a..4ee2e8d7 100644
--- a/doc/html/boost/parser/eoi_parser.html
+++ b/doc/html/boost/parser/eoi_parser.html
@@ -26,33 +26,33 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span>
 <span class="keyword">struct</span> <a class="link" href="eoi_parser.html" title="Struct eoi_parser">eoi_parser</a> <span class="special">{</span>
 
-  <span class="comment">// <a class="link" href="eoi_parser.html#idm19041-bb">public member functions</a></span>
+  <span class="comment">// <a class="link" href="eoi_parser.html#idm19311-bb">public member functions</a></span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-    <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="eoi_parser.html#idm19042-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="eoi_parser.html#idm19312-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
                      <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> 
                      <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="eoi_parser.html#idm19067-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">void</span> <a class="link" href="eoi_parser.html#idm19337-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">,</span> 
               <span class="identifier">Attribute</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm23533"></a><h2>Description</h2>
+<a name="idm23767"></a><h2>Description</h2>
 <div class="refsect2">
-<a name="idm23535"></a><h3>
-<a name="idm19041-bb"></a><code class="computeroutput">eoi_parser</code> public member functions</h3>
+<a name="idm23769"></a><h3>
+<a name="idm19311-bb"></a><code class="computeroutput">eoi_parser</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-  <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a name="idm19042-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a name="idm19312-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
                    <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> 
                    <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> 
                    <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm19067-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="keyword">void</span> <a name="idm19337-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">,</span> <span class="identifier">Attribute</span> <span class="special">&amp;</span> retval<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 </ol></div>
diff --git a/doc/html/boost/parser/eol.html b/doc/html/boost/parser/eol.html
index 9757b78c..d0eb6354 100644
--- a/doc/html/boost/parser/eol.html
+++ b/doc/html/boost/parser/eol.html
@@ -25,7 +25,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="keyword">constexpr</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <a class="link" href="ws_parser.html" title="Struct template ws_parser">ws_parser</a><span class="special">&lt;</span> <span class="keyword">true</span> <span class="special">&gt;</span> <span class="special">&gt;</span> eol<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm33047"></a><h2>Description</h2>
+<a name="idm33490"></a><h2>Description</h2>
 <p>The end-of-line parser. This matches "\r\n", or any one of the line break code points from the Unicode Line Break Algorithm, described in <a href="https://unicode.org/reports/tr14" target="_top">https://unicode.org/reports/tr14</a>. Produces no attribute. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/eps.html b/doc/html/boost/parser/eps.html
index 4c02087f..165a8518 100644
--- a/doc/html/boost/parser/eps.html
+++ b/doc/html/boost/parser/eps.html
@@ -6,13 +6,13 @@
 <meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
 <link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="skip.html" title="Global skip">
+<link rel="prev" href="separate.html" title="Global separate">
 <link rel="next" href="eoi.html" title="Global eoi">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="skip.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="eoi.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="separate.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="eoi.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
 <a name="boost.parser.eps"></a><div class="titlepage"></div>
@@ -25,7 +25,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="emphasis"><em><span class="identifier">unspecified</span></em></span> eps<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm32946"></a><h2>Description</h2>
+<a name="idm33389"></a><h2>Description</h2>
 <p>The epsilon parser. This matches anything, and consumes no input. If used with an optional predicate, like <code class="computeroutput">eps(pred)</code>, it matches iff <code class="computeroutput">pred(ctx)</code> evaluates to true, where <code class="computeroutput">ctx</code> is the parser context. </p>
 </div>
 </div>
@@ -36,7 +36,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="skip.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="eoi.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="separate.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="eoi.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/eps_parser.html b/doc/html/boost/parser/eps_parser.html
index 6fb19504..b39b56ae 100644
--- a/doc/html/boost/parser/eps_parser.html
+++ b/doc/html/boost/parser/eps_parser.html
@@ -26,44 +26,44 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Predicate<span class="special">&gt;</span> 
 <span class="keyword">struct</span> <a class="link" href="eps_parser.html" title="Struct template eps_parser">eps_parser</a> <span class="special">{</span>
 
-  <span class="comment">// <a class="link" href="eps_parser.html#idm19106-bb">public member functions</a></span>
+  <span class="comment">// <a class="link" href="eps_parser.html#idm19376-bb">public member functions</a></span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-    <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="eps_parser.html#idm19107-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="eps_parser.html#idm19377-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
                      <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> 
                      <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="eps_parser.html#idm19132-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">void</span> <a class="link" href="eps_parser.html#idm19402-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">,</span> 
               <span class="identifier">Attribute</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Predicate2<span class="special">&gt;</span> 
-    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="eps_parser.html#idm19159-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">Predicate2</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="eps_parser.html#idm19429-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">Predicate2</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
 
   <span class="comment">// public data members</span>
   <span class="identifier">Predicate</span> <span class="identifier">pred_</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm23777"></a><h2>Description</h2>
+<a name="idm24011"></a><h2>Description</h2>
 <p>Matches anything, and consumes no input. If <code class="computeroutput">Predicate</code> is anything other than <code class="computeroutput">detail::nope</code> (which it is by default), and <code class="computeroutput">pred_(ctx)</code> evaluates to false, where <code class="computeroutput">ctx</code> is the parser context, the parse fails. </p>
 <div class="refsect2">
-<a name="idm23784"></a><h3>
-<a name="idm19106-bb"></a><code class="computeroutput">eps_parser</code> public member functions</h3>
+<a name="idm24018"></a><h3>
+<a name="idm19376-bb"></a><code class="computeroutput">eps_parser</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-  <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a name="idm19107-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a name="idm19377-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
                    <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> 
                    <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> 
                    <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li>
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm19132-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="keyword">void</span> <a name="idm19402-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">,</span> <span class="identifier">Attribute</span> <span class="special">&amp;</span> retval<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 <li class="listitem">
 <pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Predicate2<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm19159-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">Predicate2</span> pred<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm19429-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">Predicate2</span> pred<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code></code> containing an <code class="computeroutput"><code class="computeroutput"><a class="link" href="eps_parser.html" title="Struct template eps_parser">eps_parser</a></code></code> that will fail if <code class="computeroutput">pred</code> evaluates to false. </p>
 </li>
 </ol></div>
diff --git a/doc/html/boost/parser/error_handler_result.html b/doc/html/boost/parser/error_handler_result.html
index d9b35857..2f604f8e 100644
--- a/doc/html/boost/parser/error_handler_result.html
+++ b/doc/html/boost/parser/error_handler_result.html
@@ -27,7 +27,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 <span class="keyword">enum</span> <span class="identifier">error_handler_result</span> <span class="special">{</span> fail, <a class="link" href="error_handler_result.html#boost.parser.error_handler_result.rethrow">rethrow</a> <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm18946"></a><h2>Description</h2>
+<a name="idm19172"></a><h2>Description</h2>
 <p>The possible actions to take when a parse error is handled by an error handler. </p>
 <div class="variablelist"><dl class="variablelist compact">
 <dt><span class="term"><code class="computeroutput">rethrow</code><a name="boost.parser.error_handler_result.rethrow"></a></span></dt>
diff --git a/doc/html/boost/parser/expect_parser.html b/doc/html/boost/parser/expect_parser.html
index 9003c4ee..151909b0 100644
--- a/doc/html/boost/parser/expect_parser.html
+++ b/doc/html/boost/parser/expect_parser.html
@@ -26,15 +26,15 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">bool</span> FailOnMatch<span class="special">&gt;</span> 
 <span class="keyword">struct</span> <a class="link" href="expect_parser.html" title="Struct template expect_parser">expect_parser</a> <span class="special">{</span>
 
-  <span class="comment">// <a class="link" href="expect_parser.html#idm19184-bb">public member functions</a></span>
+  <span class="comment">// <a class="link" href="expect_parser.html#idm19454-bb">public member functions</a></span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-    <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="expect_parser.html#idm19185-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="expect_parser.html#idm19455-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
                      <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> 
                      <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="expect_parser.html#idm19210-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">void</span> <a class="link" href="expect_parser.html#idm19480-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">,</span> 
               <span class="identifier">Attribute</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
 
@@ -42,21 +42,21 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
   <span class="identifier">Parser</span> <span class="identifier">parser_</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm24039"></a><h2>Description</h2>
+<a name="idm24273"></a><h2>Description</h2>
 <p>Applies the given parser <code class="computeroutput">p</code> of type <code class="computeroutput">Parser</code>, producing no attributes and consuming no input. The parse succeeds iff <code class="computeroutput">p</code> succeeds. </p>
 <div class="refsect2">
-<a name="idm24045"></a><h3>
-<a name="idm19184-bb"></a><code class="computeroutput">expect_parser</code> public member functions</h3>
+<a name="idm24279"></a><h3>
+<a name="idm19454-bb"></a><code class="computeroutput">expect_parser</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-  <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a name="idm19185-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a name="idm19455-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
                    <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> 
                    <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> 
                    <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm19210-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="keyword">void</span> <a name="idm19480-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">,</span> <span class="identifier">Attribute</span> <span class="special">&amp;</span> retval<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 </ol></div>
diff --git a/doc/html/boost/parser/find_line_end.html b/doc/html/boost/parser/find_line_end.html
index a7715b33..62a905b3 100644
--- a/doc/html/boost/parser/find_line_end.html
+++ b/doc/html/boost/parser/find_line_end.html
@@ -27,7 +27,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">&gt;</span> 
   <span class="identifier">Iter</span> <span class="identifier">find_line_end</span><span class="special">(</span><span class="identifier">Iter</span> it<span class="special">,</span> <span class="identifier">Sentinel</span> last<span class="special">)</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm18095"></a><h2>Description</h2>
+<a name="idm18321"></a><h2>Description</h2>
 <p>Returns the iterator to the end of the line in which <code class="computeroutput">it</code> is found. <br>
  </p>
 </div>
diff --git a/doc/html/boost/parser/find_line_position.html b/doc/html/boost/parser/find_line_position.html
index 636b59e2..5e86e758 100644
--- a/doc/html/boost/parser/find_line_position.html
+++ b/doc/html/boost/parser/find_line_position.html
@@ -6,13 +6,13 @@
 <meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
 <link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../header/boost/parser/error_handling_hpp.html" title="Header &lt;boost/parser/error_handling.hpp&gt;">
-<link rel="prev" href="write_formatted_e_idm18349.html" title="Function template write_formatted_expectation_failure_error_message">
+<link rel="prev" href="write_formatted_e_idm18619.html" title="Function template write_formatted_expectation_failure_error_message">
 <link rel="next" href="find_line_end.html" title="Function template find_line_end">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="write_formatted_e_idm18349.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="find_line_end.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="write_formatted_e_idm18619.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="find_line_end.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
 <a name="boost.parser.find_line_position"></a><div class="titlepage"></div>
@@ -27,7 +27,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">&gt;</span> 
   <a class="link" href="line_position.html" title="Struct template line_position">line_position</a><span class="special">&lt;</span> <span class="identifier">Iter</span> <span class="special">&gt;</span> <span class="identifier">find_line_position</span><span class="special">(</span><span class="identifier">Iter</span> first<span class="special">,</span> <span class="identifier">Iter</span> it<span class="special">)</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm18062"></a><h2>Description</h2>
+<a name="idm18288"></a><h2>Description</h2>
 <p>Returns the <code class="computeroutput"><code class="computeroutput"><a class="link" href="line_position.html" title="Struct template line_position">line_position</a></code></code> for <code class="computeroutput">it</code>, counting lines from the beginning of the input <code class="computeroutput">first</code>. </p>
 </div>
 </div>
@@ -38,7 +38,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="write_formatted_e_idm18349.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="find_line_end.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="write_formatted_e_idm18619.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="find_line_end.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/float_.html b/doc/html/boost/parser/float_.html
index b605db65..21de2fc6 100644
--- a/doc/html/boost/parser/float_.html
+++ b/doc/html/boost/parser/float_.html
@@ -25,7 +25,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="keyword">constexpr</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <a class="link" href="float_parser.html" title="Struct template float_parser">float_parser</a><span class="special">&lt;</span> <span class="keyword">float</span> <span class="special">&gt;</span> <span class="special">&gt;</span> float_<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm33426"></a><h2>Description</h2>
+<a name="idm33869"></a><h2>Description</h2>
 <p>The <code class="computeroutput">float</code> parser. Produces a <code class="computeroutput">float</code> attribute. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/float_parser.html b/doc/html/boost/parser/float_parser.html
index a8c79c8d..dda969aa 100644
--- a/doc/html/boost/parser/float_parser.html
+++ b/doc/html/boost/parser/float_parser.html
@@ -26,41 +26,41 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> 
 <span class="keyword">struct</span> <a class="link" href="float_parser.html" title="Struct template float_parser">float_parser</a> <span class="special">{</span>
   <span class="comment">// <a class="link" href="float_parser.html#boost.parser.float_parserconstruct-copy-destruct">construct/copy/destruct</a></span>
-  <a class="link" href="float_parser.html#idm19295-bb"><span class="identifier">float_parser</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="float_parser.html#idm19565-bb"><span class="identifier">float_parser</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
 
-  <span class="comment">// <a class="link" href="float_parser.html#idm19243-bb">public member functions</a></span>
+  <span class="comment">// <a class="link" href="float_parser.html#idm19513-bb">public member functions</a></span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-    <span class="identifier">T</span> <a class="link" href="float_parser.html#idm19244-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="identifier">T</span> <a class="link" href="float_parser.html#idm19514-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
            <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="float_parser.html#idm19268-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">void</span> <a class="link" href="float_parser.html#idm19538-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">,</span> 
               <span class="identifier">Attribute</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm24272"></a><h2>Description</h2>
+<a name="idm24506"></a><h2>Description</h2>
 <p>Matches a floating point number, producing an attribute of type <code class="computeroutput">T</code>. </p>
 <div class="refsect2">
-<a name="idm24276"></a><h3>
+<a name="idm24510"></a><h3>
 <a name="boost.parser.float_parserconstruct-copy-destruct"></a><code class="computeroutput">float_parser</code> 
         public
        construct/copy/destruct</h3>
-<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><a name="idm19295-bb"></a><span class="identifier">float_parser</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li></ol></div>
+<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><a name="idm19565-bb"></a><span class="identifier">float_parser</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li></ol></div>
 </div>
 <div class="refsect2">
-<a name="idm24289"></a><h3>
-<a name="idm19243-bb"></a><code class="computeroutput">float_parser</code> public member functions</h3>
+<a name="idm24523"></a><h3>
+<a name="idm19513-bb"></a><code class="computeroutput">float_parser</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-  <span class="identifier">T</span> <a name="idm19244-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="identifier">T</span> <a name="idm19514-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
          <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
          <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm19268-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="keyword">void</span> <a name="idm19538-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">,</span> <span class="identifier">Attribute</span> <span class="special">&amp;</span> retval<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 </ol></div>
diff --git a/doc/html/boost/parser/get.html b/doc/html/boost/parser/get.html
index fe49b2e2..8f50fa5f 100644
--- a/doc/html/boost/parser/get.html
+++ b/doc/html/boost/parser/get.html
@@ -27,7 +27,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> U<span class="special">,</span> <span class="identifier">U</span> I<span class="special">&gt;</span> 
   <span class="keyword">constexpr</span> <span class="keyword">decltype</span><span class="special">(</span><span class="keyword">auto</span><span class="special">)</span> <span class="identifier">get</span><span class="special">(</span><span class="identifier">T</span> <span class="special">&amp;&amp;</span> x<span class="special">,</span> <span class="identifier">integral_constant</span><span class="special">&lt;</span> <span class="identifier">U</span><span class="special">,</span> <span class="identifier">I</span> <span class="special">&gt;</span> i<span class="special">)</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm36957"></a><h2>Description</h2>
+<a name="idm37422"></a><h2>Description</h2>
 <p>An accessor that returns a reference to the <code class="computeroutput">I</code>-th data member of an aggregate struct or <code class="computeroutput">boost::parser::tuple</code>. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/hex.html b/doc/html/boost/parser/hex.html
index f54806b7..4a703b0e 100644
--- a/doc/html/boost/parser/hex.html
+++ b/doc/html/boost/parser/hex.html
@@ -25,7 +25,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="keyword">constexpr</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <a class="link" href="uint_parser.html" title="Struct template uint_parser">uint_parser</a><span class="special">&lt;</span> <span class="keyword">unsigned</span> <span class="keyword">int</span><span class="special">,</span> <span class="number">16</span> <span class="special">&gt;</span> <span class="special">&gt;</span> hex<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm33178"></a><h2>Description</h2>
+<a name="idm33621"></a><h2>Description</h2>
 <p>The hexadecimal unsigned integer parser. Produces an <code class="computeroutput">unsigned int</code> attribute. To parse a particular value <code class="computeroutput">x</code>, use <code class="computeroutput">hex(x)</code>. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/if_.html b/doc/html/boost/parser/if_.html
index f2ff6464..e5a4de61 100644
--- a/doc/html/boost/parser/if_.html
+++ b/doc/html/boost/parser/if_.html
@@ -6,13 +6,13 @@
 <meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
 <link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="lit_idm22198.html" title="Function template lit">
+<link rel="prev" href="lit_idm22525.html" title="Function template lit">
 <link rel="next" href="switch_.html" title="Function template switch_">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="lit_idm22198.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="switch_.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="lit_idm22525.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="switch_.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
 <a name="boost.parser.if_"></a><div class="titlepage"></div>
@@ -26,7 +26,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span>
 <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Predicate<span class="special">&gt;</span> <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="identifier">if_</span><span class="special">(</span><span class="identifier">Predicate</span> pred<span class="special">)</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm34167"></a><h2>Description</h2>
+<a name="idm34610"></a><h2>Description</h2>
 <p>Returns an <code class="computeroutput"><code class="computeroutput"><a class="link" href="if_directive.html" title="Struct template if_directive">if_directive</a></code></code> that fails if the given predicate <code class="computeroutput">pred</code> is <code class="computeroutput">false</code>, and otherwise, applies another parser. For instance, in <code class="computeroutput">if_(pred)[p]</code>, <code class="computeroutput">p</code> is only applied if <code class="computeroutput">pred</code> is true. </p>
 </div>
 </div>
@@ -37,7 +37,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="lit_idm22198.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="switch_.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="lit_idm22525.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="switch_.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/if_directive.html b/doc/html/boost/parser/if_directive.html
index 9ff9fe1f..fcc99418 100644
--- a/doc/html/boost/parser/if_directive.html
+++ b/doc/html/boost/parser/if_directive.html
@@ -26,21 +26,21 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Predicate<span class="special">&gt;</span> 
 <span class="keyword">struct</span> <a class="link" href="if_directive.html" title="Struct template if_directive">if_directive</a> <span class="special">{</span>
 
-  <span class="comment">// <a class="link" href="if_directive.html#idm19305-bb">public member functions</a></span>
+  <span class="comment">// <a class="link" href="if_directive.html#idm19575-bb">public member functions</a></span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser2<span class="special">&gt;</span> 
-    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="if_directive.html#idm19306-bb"><span class="keyword">operator</span><span class="special">[</span><span class="special">]</span></a><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser2</span> <span class="special">&gt;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="if_directive.html#idm19576-bb"><span class="keyword">operator</span><span class="special">[</span><span class="special">]</span></a><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser2</span> <span class="special">&gt;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
 
   <span class="comment">// public data members</span>
   <span class="identifier">Predicate</span> <span class="identifier">pred_</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm24438"></a><h2>Description</h2>
+<a name="idm24672"></a><h2>Description</h2>
 <p>Represents a sequence parser, the first parser of which is an <code class="computeroutput">epsilon_parser</code> with predicate, as a directive (e.g. <code class="computeroutput">if_(pred)[p]</code>). </p>
 <div class="refsect2">
-<a name="idm24443"></a><h3>
-<a name="idm19305-bb"></a><code class="computeroutput">if_directive</code> public member functions</h3>
+<a name="idm24677"></a><h3>
+<a name="idm19575-bb"></a><code class="computeroutput">if_directive</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser2<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm19306-bb"></a><span class="keyword">operator</span><span class="special">[</span><span class="special">]</span><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser2</span> <span class="special">&gt;</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li></ol></div>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm19576-bb"></a><span class="keyword">operator</span><span class="special">[</span><span class="special">]</span><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser2</span> <span class="special">&gt;</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li></ol></div>
 </div>
 </div>
 </div>
diff --git a/doc/html/boost/parser/int_.html b/doc/html/boost/parser/int_.html
index 3281ff75..27b80def 100644
--- a/doc/html/boost/parser/int_.html
+++ b/doc/html/boost/parser/int_.html
@@ -25,7 +25,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="keyword">constexpr</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <a class="link" href="int_parser.html" title="Struct template int_parser">int_parser</a><span class="special">&lt;</span> <span class="keyword">int</span> <span class="special">&gt;</span> <span class="special">&gt;</span> int_<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm33344"></a><h2>Description</h2>
+<a name="idm33787"></a><h2>Description</h2>
 <p>The <code class="computeroutput">int</code> parser. Produces an <code class="computeroutput">int</code> attribute. To parse a particular value <code class="computeroutput">x</code>, use <code class="computeroutput">int_(x)</code>. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/int_parser.html b/doc/html/boost/parser/int_parser.html
index 9ea80315..74c823f4 100644
--- a/doc/html/boost/parser/int_parser.html
+++ b/doc/html/boost/parser/int_parser.html
@@ -27,55 +27,55 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
          <span class="keyword">typename</span> Expected<span class="special">&gt;</span> 
 <span class="keyword">struct</span> <a class="link" href="int_parser.html" title="Struct template int_parser">int_parser</a> <span class="special">{</span>
   <span class="comment">// <a class="link" href="int_parser.html#boost.parser.int_parserconstruct-copy-destruct">construct/copy/destruct</a></span>
-  <a class="link" href="int_parser.html#idm19405-bb"><span class="identifier">int_parser</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
-  <span class="keyword">explicit</span> <a class="link" href="int_parser.html#idm19406-bb"><span class="identifier">int_parser</span></a><span class="special">(</span><span class="identifier">Expected</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="int_parser.html#idm19675-bb"><span class="identifier">int_parser</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
+  <span class="keyword">explicit</span> <a class="link" href="int_parser.html#idm19676-bb"><span class="identifier">int_parser</span></a><span class="special">(</span><span class="identifier">Expected</span><span class="special">)</span><span class="special">;</span>
 
-  <span class="comment">// <a class="link" href="int_parser.html#idm19340-bb">public member functions</a></span>
+  <span class="comment">// <a class="link" href="int_parser.html#idm19610-bb">public member functions</a></span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-    <span class="identifier">T</span> <a class="link" href="int_parser.html#idm19341-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="identifier">T</span> <a class="link" href="int_parser.html#idm19611-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
            <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="int_parser.html#idm19365-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">void</span> <a class="link" href="int_parser.html#idm19635-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">,</span> 
               <span class="identifier">Attribute</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Expected2<span class="special">&gt;</span> 
-    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="int_parser.html#idm19392-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">Expected2</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="int_parser.html#idm19662-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">Expected2</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
 
   <span class="comment">// public data members</span>
   <span class="identifier">Expected</span> <span class="identifier">expected_</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm24627"></a><h2>Description</h2>
+<a name="idm24861"></a><h2>Description</h2>
 <p>Matches a signed number of radix <code class="computeroutput">Radix</code>, of at least <code class="computeroutput">MinDigits</code> and at most <code class="computeroutput">MaxDigits</code>, producing an attribute of type <code class="computeroutput">T</code>. Fails on any other input. The parse will also fail if <code class="computeroutput">Expected</code> is anything but <code class="computeroutput">detail::nope</code> (which it is by default), and the produced attribute is not equal to <code class="computeroutput">expected_</code>. <code class="computeroutput">Radix</code> must be one of <code class="computeroutput">2</code>, <code class="computeroutput">8</code>, <code class="computeroutput">10</code>, or <code class="computeroutput">16</code>. </p>
 <div class="refsect2">
-<a name="idm24642"></a><h3>
+<a name="idm24876"></a><h3>
 <a name="boost.parser.int_parserconstruct-copy-destruct"></a><code class="computeroutput">int_parser</code> 
         public
        construct/copy/destruct</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
-<li class="listitem"><pre class="literallayout"><a name="idm19405-bb"></a><span class="identifier">int_parser</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">explicit</span> <a name="idm19406-bb"></a><span class="identifier">int_parser</span><span class="special">(</span><span class="identifier">Expected</span> expected<span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a name="idm19675-bb"></a><span class="identifier">int_parser</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">explicit</span> <a name="idm19676-bb"></a><span class="identifier">int_parser</span><span class="special">(</span><span class="identifier">Expected</span> expected<span class="special">)</span><span class="special">;</span></pre></li>
 </ol></div>
 </div>
 <div class="refsect2">
-<a name="idm24665"></a><h3>
-<a name="idm19340-bb"></a><code class="computeroutput">int_parser</code> public member functions</h3>
+<a name="idm24899"></a><h3>
+<a name="idm19610-bb"></a><code class="computeroutput">int_parser</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-  <span class="identifier">T</span> <a name="idm19341-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="identifier">T</span> <a name="idm19611-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
          <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
          <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm19365-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="keyword">void</span> <a name="idm19635-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">,</span> <span class="identifier">Attribute</span> <span class="special">&amp;</span> retval<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 <li class="listitem">
 <pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Expected2<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm19392-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">Expected2</span> expected<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm19662-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">Expected2</span> expected<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code></code> containing an <code class="computeroutput"><code class="computeroutput"><a class="link" href="int_parser.html" title="Struct template int_parser">int_parser</a></code></code> that matches the exact value <code class="computeroutput">expected</code>. </p>
 </li>
 </ol></div>
diff --git a/doc/html/boost/parser/integral_constant.html b/doc/html/boost/parser/integral_constant.html
index 45c9fc13..ec92f5c1 100644
--- a/doc/html/boost/parser/integral_constant.html
+++ b/doc/html/boost/parser/integral_constant.html
@@ -26,7 +26,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span>
 <span class="keyword">typedef</span> <span class="identifier">hana</span><span class="special">::</span><span class="identifier">integral_constant</span><span class="special">&lt;</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">I</span> <span class="special">&gt;</span> <span class="identifier">integral_constant</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm36887"></a><h2>Description</h2>
+<a name="idm37352"></a><h2>Description</h2>
 <p>A template alias that is <code class="computeroutput">boost::hana::integral_constant&lt;T, I&gt;</code> unless <code class="computeroutput">BOOST_PARSER_DISABLE_HANA_TUPLE</code> is defined, in which case it is <code class="computeroutput">std::integral_constant&lt;T, I&gt;</code>. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/lexeme.html b/doc/html/boost/parser/lexeme.html
index 8c29f8df..c53e69bf 100644
--- a/doc/html/boost/parser/lexeme.html
+++ b/doc/html/boost/parser/lexeme.html
@@ -25,8 +25,8 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="keyword">constexpr</span> <a class="link" href="directive.html" title="Struct template directive">directive</a><span class="special">&lt;</span> <a class="link" href="lexeme_parser.html" title="Struct template lexeme_parser">lexeme_parser</a> <span class="special">&gt;</span> lexeme<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm32870"></a><h2>Description</h2>
-<p>The <code class="computeroutput">lexeme</code> directive, whose <code class="computeroutput">operator[]</code> returns an <code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a>&lt;<a class="link" href="lexeme_parser.html" title="Struct template lexeme_parser">lexeme_parser</a>&lt;P&gt;&gt;</code> from a given parser of type <code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a>&lt;P&gt;</code>. </p>
+<a name="idm33253"></a><h2>Description</h2>
+<p>The <code class="computeroutput">lexeme</code> directive, whose <code class="computeroutput">operator[]</code> returns a <code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a>&lt;<a class="link" href="lexeme_parser.html" title="Struct template lexeme_parser">lexeme_parser</a>&lt;P&gt;&gt;</code> from a given parser of type <code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a>&lt;P&gt;</code>. </p>
 </div>
 </div>
 <div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
diff --git a/doc/html/boost/parser/lexeme_parser.html b/doc/html/boost/parser/lexeme_parser.html
index a20cbf62..b17f3e72 100644
--- a/doc/html/boost/parser/lexeme_parser.html
+++ b/doc/html/boost/parser/lexeme_parser.html
@@ -7,12 +7,12 @@
 <link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
 <link rel="prev" href="int_parser.html" title="Struct template int_parser">
-<link rel="next" href="no_case_parser.html" title="Struct template no_case_parser">
+<link rel="next" href="merge_directive.html" title="Struct merge_directive">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="int_parser.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="no_case_parser.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="int_parser.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="merge_directive.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
 <a name="boost.parser.lexeme_parser"></a><div class="titlepage"></div>
@@ -26,14 +26,14 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
 <span class="keyword">struct</span> <a class="link" href="lexeme_parser.html" title="Struct template lexeme_parser">lexeme_parser</a> <span class="special">{</span>
 
-  <span class="comment">// <a class="link" href="lexeme_parser.html#idm19420-bb">public member functions</a></span>
+  <span class="comment">// <a class="link" href="lexeme_parser.html#idm19690-bb">public member functions</a></span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-    <span class="keyword">auto</span> <a class="link" href="lexeme_parser.html#idm19421-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">auto</span> <a class="link" href="lexeme_parser.html#idm19691-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="lexeme_parser.html#idm19445-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">void</span> <a class="link" href="lexeme_parser.html#idm19715-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">,</span> 
               <span class="identifier">Attribute</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
 
@@ -41,20 +41,20 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
   <span class="identifier">Parser</span> <span class="identifier">parser_</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm24915"></a><h2>Description</h2>
+<a name="idm25149"></a><h2>Description</h2>
 <p>Applies the given parser <code class="computeroutput">p</code> of type <code class="computeroutput">Parser</code>, disabling the current skipper in use, if any. The parse succeeds iff <code class="computeroutput">p</code> succeeds. The attribute produced is the type of attribute produced by <code class="computeroutput">Parser</code>. </p>
 <div class="refsect2">
-<a name="idm24922"></a><h3>
-<a name="idm19420-bb"></a><code class="computeroutput">lexeme_parser</code> public member functions</h3>
+<a name="idm25156"></a><h3>
+<a name="idm19690-bb"></a><code class="computeroutput">lexeme_parser</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-  <span class="keyword">auto</span> <a name="idm19421-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="keyword">auto</span> <a name="idm19691-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm19445-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="keyword">void</span> <a name="idm19715-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">,</span> <span class="identifier">Attribute</span> <span class="special">&amp;</span> retval<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 </ol></div>
@@ -68,7 +68,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="int_parser.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="no_case_parser.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="int_parser.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="merge_directive.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/line_position.html b/doc/html/boost/parser/line_position.html
index bee5dc6c..d4d9d280 100644
--- a/doc/html/boost/parser/line_position.html
+++ b/doc/html/boost/parser/line_position.html
@@ -32,7 +32,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
   <span class="identifier">int64_t</span> <span class="identifier">column_number</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm18464"></a><h2>Description</h2>
+<a name="idm18690"></a><h2>Description</h2>
 <p>A position within a line, consisting of an iterator to the start of the line, the line number, and the column number. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/lit_idm22143.html b/doc/html/boost/parser/lit_idm22143.html
deleted file mode 100644
index f8222851..00000000
--- a/doc/html/boost/parser/lit_idm22143.html
+++ /dev/null
@@ -1,43 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function lit</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="attr.html" title="Function template attr">
-<link rel="next" href="lit_idm22149.html" title="Function lit">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="attr.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="lit_idm22149.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.lit_idm22143"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function lit</span></h2>
-<p>boost::parser::lit</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="identifier">lit</span><span class="special">(</span><span class="keyword">char</span> c<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34025"></a><h2>Description</h2>
-<p>Returns a literal code point parser that produces no attribute. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="attr.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="lit_idm22149.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/lit_idm22145.html b/doc/html/boost/parser/lit_idm22145.html
deleted file mode 100644
index 05d852cf..00000000
--- a/doc/html/boost/parser/lit_idm22145.html
+++ /dev/null
@@ -1,43 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function lit</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="attr.html" title="Function template attr">
-<link rel="next" href="lit_idm22151.html" title="Function lit">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="attr.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="lit_idm22151.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.lit_idm22145"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function lit</span></h2>
-<p>boost::parser::lit</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
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-<a name="idm34027"></a><h2>Description</h2>
-<p>Returns a literal code point parser that produces no attribute. </p>
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-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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diff --git a/doc/html/boost/parser/lit_idm22147.html b/doc/html/boost/parser/lit_idm22147.html
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-<a name="idm34029"></a><h2>Description</h2>
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-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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diff --git a/doc/html/boost/parser/lit_idm22149.html b/doc/html/boost/parser/lit_idm22149.html
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-<a name="idm34030"></a><h2>Description</h2>
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-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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diff --git a/doc/html/boost/parser/lit_idm22153.html b/doc/html/boost/parser/lit_idm22153.html
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-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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diff --git a/doc/html/boost/parser/lit_idm22154.html b/doc/html/boost/parser/lit_idm22154.html
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-<a name="idm34051"></a><h2>Description</h2>
-<p>Returns a literal code point parser that produces no attribute. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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diff --git a/doc/html/boost/parser/lit_idm22155.html b/doc/html/boost/parser/lit_idm22155.html
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-<p>Returns a literal code point parser that produces no attribute. </p>
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-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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diff --git a/doc/html/boost/parser/lit_idm22159.html b/doc/html/boost/parser/lit_idm22159.html
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-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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diff --git a/doc/html/boost/parser/lit_idm22160.html b/doc/html/boost/parser/lit_idm22160.html
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-<a name="idm34072"></a><h2>Description</h2>
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-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-<a name="idm34088"></a><h2>Description</h2>
-<p>Returns a literal code point parser that produces no attribute. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-
-</span>
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-<div class="refsect1">
-<a name="idm34122"></a><h2>Description</h2>
-<p>Returns a parser that matches <code class="computeroutput">str</code> that produces no attribute. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-
-</span>
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-<div class="refsect1">
-<a name="idm34124"></a><h2>Description</h2>
-<p>Returns a parser that matches <code class="computeroutput">str</code> that produces no attribute. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-<p>Returns a parser that matches <code class="computeroutput">str</code> that produces no attribute. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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diff --git a/doc/html/boost/parser/lit_idm22182.html b/doc/html/boost/parser/lit_idm22182.html
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-</span>
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-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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diff --git a/doc/html/boost/parser/lit_idm22198.html b/doc/html/boost/parser/lit_idm22198.html
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-<h2><span class="refentrytitle">Function template lit</span></h2>
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-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">&gt;</span> <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="identifier">lit</span><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span> str<span class="special">)</span><span class="special">;</span></pre></div>
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-<p>Returns a parser that matches <code class="computeroutput">str</code> that produces no attribute. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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+<a name="idm34489"></a><h2>Description</h2>
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diff --git a/doc/html/boost/parser/lit_idm22151.html b/doc/html/boost/parser/lit_idm22498.html
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index c5f1a1c1..8e291eac 100644
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-<link rel="next" href="lit_idm22157.html" title="Function lit">
+<link rel="prev" href="lit_idm22492.html" title="Function lit">
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+<a name="idm34510"></a><h2>Description</h2>
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diff --git a/doc/html/boost/parser/lit_idm22157.html b/doc/html/boost/parser/lit_idm22504.html
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-<link rel="prev" href="lit_idm22151.html" title="Function lit">
+<link rel="prev" href="lit_idm22498.html" title="Function lit">
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-<a accesskey="p" href="lit_idm22151.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="string.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="lit_idm22498.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="string.html"><img src="../../images/next.png" alt="Next"></a>
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 <div class="refentry">
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+<a name="boost.parser.lit_idm22504"></a><div class="titlepage"></div>
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 <h2><span class="refentrytitle">Function lit</span></h2>
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@@ -26,7 +26,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
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 <div class="refsect1">
-<a name="idm34069"></a><h2>Description</h2>
+<a name="idm34531"></a><h2>Description</h2>
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+<a name="boost.parser.lit_idm22525"></a><div class="titlepage"></div>
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@@ -26,7 +26,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
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+<a name="idm34584"></a><h2>Description</h2>
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diff --git a/doc/html/boost/parser/literals/operator_c_idm23018.html b/doc/html/boost/parser/literals/operator_c_idm23018.html
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-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template operator""_c</title>
-<link rel="stylesheet" href="../../../boostbook.css" type="text/css">
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-<link rel="home" href="../../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
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-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">char</span><span class="special">...</span> chars<span class="special">&gt;</span> <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="string">""</span><span class="identifier">_c</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></div>
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-<p>A literal that can be used to concisely name <code class="computeroutput">parser::llong</code> integral constants. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<div class="refsect1">
-<a name="idm36818"></a><h2>Description</h2>
-<p>A literal that can be used to concisely name <code class="computeroutput">parser::llong</code> integral constants. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">char</span><span class="special">...</span> chars<span class="special">&gt;</span> <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="string">""</span><span class="identifier">_c</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
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-<p>A literal that can be used to concisely name <code class="computeroutput">parser::llong</code> integral constants. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
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diff --git a/doc/html/boost/parser/literals/operator_c_idm23016.html b/doc/html/boost/parser/literals/operator_c_idm23370.html
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-<p>Returns a literal parser equivalent to <code class="computeroutput">lit(c)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<p>Returns a literal parser equivalent to <code class="computeroutput">lit(c)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-<div class="refsect1">
-<a name="idm21654"></a><h2>Description</h2>
-<p>Returns a literal parser equivalent to <code class="computeroutput">lit(c)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-<p>boost::parser::literals::operator""_l</p>
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-<h2 class="refsynopsisdiv-title">Synopsis</h2>
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-<div class="refsect1">
-<a name="idm21654"></a><h2>Description</h2>
-<p>Returns a literal parser equivalent to <code class="computeroutput">lit(c)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<p>Returns a literal parser equivalent to <code class="computeroutput">lit(c)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<p>boost::parser::literals::operator""_l</p>
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-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
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-</span>
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-<a name="idm21677"></a><h2>Description</h2>
-<p>Returns a literal parser equivalent to <code class="computeroutput">lit(c)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<div class="refsect1">
-<a name="idm21678"></a><h2>Description</h2>
-<p>Returns a literal parser equivalent to <code class="computeroutput">lit(c)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-</span>
-<span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="string">""</span><span class="identifier">_l</span><span class="special">(</span><span class="identifier">char8_t</span> c<span class="special">)</span><span class="special">;</span></pre></div>
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-<a name="idm21678"></a><h2>Description</h2>
-<p>Returns a literal parser equivalent to <code class="computeroutput">lit(c)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="string">""</span><span class="identifier">_l</span><span class="special">(</span><span class="keyword">char32_t</span> c<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm21699"></a><h2>Description</h2>
-<p>Returns a literal parser equivalent to <code class="computeroutput">lit(c)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-<div class="refsect1">
-<a name="idm21701"></a><h2>Description</h2>
-<p>Returns a literal parser equivalent to <code class="computeroutput">lit(c)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-<p>Returns a literal parser equivalent to <code class="computeroutput">lit(c)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<div class="refsect1">
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-<p>Returns a literal parser equivalent to <code class="computeroutput">lit(c)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<a name="idm21670"></a><h2>Description</h2>
-<p>Returns a literal parser equivalent to <code class="computeroutput">lit(c)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
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-<div class="refsect1">
-<a name="idm21732"></a><h2>Description</h2>
-<p>Returns a literal parser equivalent to <code class="computeroutput">lit(str)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<p>boost::parser::literals::operator""_l</p>
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-<a name="idm21732"></a><h2>Description</h2>
-<p>Returns a literal parser equivalent to <code class="computeroutput">lit(str)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<a name="idm21694"></a><h2>Description</h2>
-<p>Returns a literal parser equivalent to <code class="computeroutput">lit(c)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-</span>
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-<p>Returns a literal parser equivalent to <code class="computeroutput">lit(str)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-</span>
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-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-<a name="idm21718"></a><h2>Description</h2>
-<p>Returns a literal parser equivalent to <code class="computeroutput">lit(c)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-<p>Returns a literal parser equivalent to <code class="computeroutput">lit(str)</code>. </p>
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-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
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-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-<p>Returns a literal parser equivalent to <code class="computeroutput">lit(str)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
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-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
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-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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 <div class="refsect1">
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+<a name="idm22042"></a><h2>Description</h2>
 <p>Returns a literal parser equivalent to <code class="computeroutput">lit(str)</code>. </p>
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@@ -37,7 +37,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
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-<p>Returns a character parser equivalent to <code class="computeroutput">char_(c)</code>. </p>
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-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-<a name="idm21840"></a><h2>Description</h2>
-<p>Returns a character parser equivalent to <code class="computeroutput">char_(c)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-<a name="idm21840"></a><h2>Description</h2>
-<p>Returns a character parser equivalent to <code class="computeroutput">char_(c)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-<p>Returns a character parser equivalent to <code class="computeroutput">char_(c)</code>. </p>
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-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
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-</div>
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-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
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-<div class="refsect1">
-<a name="idm21891"></a><h2>Description</h2>
-<p>Returns a string parser equivalent to <code class="computeroutput">string(str)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-</span>
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-<div class="refsect1">
-<a name="idm21893"></a><h2>Description</h2>
-<p>Returns a string parser equivalent to <code class="computeroutput">string(str)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-<p>boost::parser::literals::operator""_p</p>
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-</span>
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-<a name="idm21894"></a><h2>Description</h2>
-<p>Returns a string parser equivalent to <code class="computeroutput">string(str)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-</span>
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-<p>Returns a string parser equivalent to <code class="computeroutput">string(str)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<p>Returns a character parser equivalent to <code class="computeroutput">char_(c)</code>. </p>
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-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-<p>boost::parser::literals::operator""_p</p>
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-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="string">""</span><span class="identifier">_p</span><span class="special">(</span><span class="identifier">char8_t</span> <span class="keyword">const</span> <span class="special">*</span> str<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm21923"></a><h2>Description</h2>
-<p>Returns a string parser equivalent to <code class="computeroutput">string(str)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-<p>boost::parser::literals::operator""_p</p>
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-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
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-</span>
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-<div class="refsect1">
-<a name="idm21924"></a><h2>Description</h2>
-<p>Returns a string parser equivalent to <code class="computeroutput">string(str)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<p>boost::parser::literals::operator""_p</p>
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-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
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-</span>
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-<div class="refsect1">
-<a name="idm21880"></a><h2>Description</h2>
-<p>Returns a character parser equivalent to <code class="computeroutput">char_(c)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<p>boost::parser::literals::operator""_p</p>
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-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="string">""</span><span class="identifier">_p</span><span class="special">(</span><span class="keyword">char32_t</span> <span class="keyword">const</span> <span class="special">*</span> str<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm21951"></a><h2>Description</h2>
-<p>Returns a string parser equivalent to <code class="computeroutput">string(str)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
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-</span>
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-<div class="refsect1">
-<a name="idm21910"></a><h2>Description</h2>
-<p>Returns a string parser equivalent to <code class="computeroutput">string(str)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-</span>
-<span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="string">""</span><span class="identifier">_p</span><span class="special">(</span><span class="keyword">char32_t</span> <span class="keyword">const</span> <span class="special">*</span> str<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span><span class="special">)</span><span class="special">;</span></pre></div>
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-<a name="idm21954"></a><h2>Description</h2>
-<p>Returns a string parser equivalent to <code class="computeroutput">string(str)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-</span>
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-<div class="refsect1">
-<a name="idm21954"></a><h2>Description</h2>
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-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-</span>
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-<div class="refsect1">
-<a name="idm21940"></a><h2>Description</h2>
-<p>Returns a string parser equivalent to <code class="computeroutput">string(str)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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diff --git a/doc/html/boost/parser/literals/operator_p_idm21638.html b/doc/html/boost/parser/literals/operator_p_idm21638.html
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-<p>Returns a string parser equivalent to <code class="computeroutput">string(str)</code>. </p>
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-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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+<a name="idm22144"></a><h2>Description</h2>
 <p>Returns a string parser equivalent to <code class="computeroutput">string(str)</code>. </p>
 </div>
 </div>
@@ -37,7 +37,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
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+<a accesskey="p" href="operator_p_idm21914.html"><img src="../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../../header/boost/parser/parser_hpp.html"><img src="../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../images/home.png" alt="Home"></a><a accesskey="n" href="operator_p_idm21930.html"><img src="../../../images/next.png" alt="Next"></a>
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diff --git a/doc/html/boost/parser/literals/operator_p_idm21607.html b/doc/html/boost/parser/literals/operator_p_idm21930.html
similarity index 84%
rename from doc/html/boost/parser/literals/operator_p_idm21607.html
rename to doc/html/boost/parser/literals/operator_p_idm21930.html
index 28b340b2..cc835289 100644
--- a/doc/html/boost/parser/literals/operator_p_idm21607.html
+++ b/doc/html/boost/parser/literals/operator_p_idm21930.html
@@ -6,16 +6,16 @@
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-<link rel="prev" href="operator_p_idm21598.html" title='Function operator""_p'>
-<link rel="next" href="operator_p_idm21616.html" title='Function operator""_p'>
+<link rel="prev" href="operator_p_idm21921.html" title='Function operator""_p'>
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+<a accesskey="p" href="operator_p_idm21921.html"><img src="../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../../header/boost/parser/parser_hpp.html"><img src="../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../images/home.png" alt="Home"></a><a accesskey="n" href="operator_p_idm21939.html"><img src="../../../images/next.png" alt="Next"></a>
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-<a name="boost.parser.literals.operator_p_idm21607"></a><div class="titlepage"></div>
+<a name="boost.parser.literals.operator_p_idm21930"></a><div class="titlepage"></div>
 <div class="refnamediv">
 <h2><span class="refentrytitle">Function operator""_p</span></h2>
 <p>boost::parser::literals::operator""_p</p>
@@ -26,7 +26,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span>
 <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="string">""</span><span class="identifier">_p</span><span class="special">(</span><span class="identifier">char8_t</span> <span class="keyword">const</span> <span class="special">*</span> str<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span><span class="special">)</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm21919"></a><h2>Description</h2>
+<a name="idm22174"></a><h2>Description</h2>
 <p>Returns a string parser equivalent to <code class="computeroutput">string(str)</code>. </p>
 </div>
 </div>
@@ -37,7 +37,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="operator_p_idm21598.html"><img src="../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../../header/boost/parser/parser_hpp.html"><img src="../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../images/home.png" alt="Home"></a><a accesskey="n" href="operator_p_idm21616.html"><img src="../../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="operator_p_idm21921.html"><img src="../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../../header/boost/parser/parser_hpp.html"><img src="../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../images/home.png" alt="Home"></a><a accesskey="n" href="operator_p_idm21939.html"><img src="../../../images/next.png" alt="Next"></a>
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diff --git a/doc/html/boost/parser/literals/operator_p_idm21616.html b/doc/html/boost/parser/literals/operator_p_idm21939.html
similarity index 90%
rename from doc/html/boost/parser/literals/operator_p_idm21616.html
rename to doc/html/boost/parser/literals/operator_p_idm21939.html
index 54c03b51..0984ae30 100644
--- a/doc/html/boost/parser/literals/operator_p_idm21616.html
+++ b/doc/html/boost/parser/literals/operator_p_idm21939.html
@@ -6,16 +6,16 @@
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 <link rel="up" href="../../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="operator_p_idm21607.html" title='Function operator""_p'>
+<link rel="prev" href="operator_p_idm21930.html" title='Function operator""_p'>
 <link rel="next" href="../action_parser.html" title="Struct template action_parser">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
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+<a accesskey="p" href="operator_p_idm21930.html"><img src="../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../../header/boost/parser/parser_hpp.html"><img src="../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../images/home.png" alt="Home"></a><a accesskey="n" href="../action_parser.html"><img src="../../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
-<a name="boost.parser.literals.operator_p_idm21616"></a><div class="titlepage"></div>
+<a name="boost.parser.literals.operator_p_idm21939"></a><div class="titlepage"></div>
 <div class="refnamediv">
 <h2><span class="refentrytitle">Function operator""_p</span></h2>
 <p>boost::parser::literals::operator""_p</p>
@@ -26,7 +26,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span>
 <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="string">""</span><span class="identifier">_p</span><span class="special">(</span><span class="keyword">char32_t</span> <span class="keyword">const</span> <span class="special">*</span> str<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span><span class="special">)</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm21949"></a><h2>Description</h2>
+<a name="idm22204"></a><h2>Description</h2>
 <p>Returns a string parser equivalent to <code class="computeroutput">string(str)</code>. </p>
 </div>
 </div>
@@ -37,7 +37,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="operator_p_idm21607.html"><img src="../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../../header/boost/parser/parser_hpp.html"><img src="../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../images/home.png" alt="Home"></a><a accesskey="n" href="../action_parser.html"><img src="../../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="operator_p_idm21930.html"><img src="../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../../header/boost/parser/parser_hpp.html"><img src="../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../images/home.png" alt="Home"></a><a accesskey="n" href="../action_parser.html"><img src="../../../images/next.png" alt="Next"></a>
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 </body>
 </html>
diff --git a/doc/html/boost/parser/llong.html b/doc/html/boost/parser/llong.html
index b507d870..3c8a96d5 100644
--- a/doc/html/boost/parser/llong.html
+++ b/doc/html/boost/parser/llong.html
@@ -26,7 +26,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span>
 <span class="keyword">typedef</span> <span class="identifier">integral_constant</span><span class="special">&lt;</span> <span class="keyword">long</span> <span class="keyword">long</span><span class="special">,</span> <span class="identifier">I</span> <span class="special">&gt;</span> <span class="identifier">llong</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm36914"></a><h2>Description</h2>
+<a name="idm37379"></a><h2>Description</h2>
 <p>A template alias that is <code class="computeroutput">boost::hana::llong&lt;I&gt;</code> unless <code class="computeroutput">BOOST_PARSER_DISABLE_HANA_TUPLE</code> is defined, in which case it is <code class="computeroutput">std::integral_constant&lt;long long, I&gt;</code>. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/long_.html b/doc/html/boost/parser/long_.html
index 84b17fba..de54cb38 100644
--- a/doc/html/boost/parser/long_.html
+++ b/doc/html/boost/parser/long_.html
@@ -25,7 +25,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="keyword">constexpr</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <a class="link" href="int_parser.html" title="Struct template int_parser">int_parser</a><span class="special">&lt;</span> <span class="keyword">long</span> <span class="special">&gt;</span> <span class="special">&gt;</span> long_<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm33371"></a><h2>Description</h2>
+<a name="idm33814"></a><h2>Description</h2>
 <p>The <code class="computeroutput">long</code> parser. Produces a <code class="computeroutput">long</code> attribute. To parse a particular value <code class="computeroutput">x</code>, use <code class="computeroutput">long_(x)</code>. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/long_long.html b/doc/html/boost/parser/long_long.html
index f4c82141..5f094e54 100644
--- a/doc/html/boost/parser/long_long.html
+++ b/doc/html/boost/parser/long_long.html
@@ -25,7 +25,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="keyword">constexpr</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <a class="link" href="int_parser.html" title="Struct template int_parser">int_parser</a><span class="special">&lt;</span> <span class="keyword">long</span> <span class="keyword">long</span> <span class="special">&gt;</span> <span class="special">&gt;</span> long_long<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm33399"></a><h2>Description</h2>
+<a name="idm33842"></a><h2>Description</h2>
 <p>The <code class="computeroutput">long long</code> parser. Produces a <code class="computeroutput">long long</code> attribute. To parse a particular value <code class="computeroutput">x</code>, use <code class="computeroutput">long_long(x)</code>. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/make_subrange.html b/doc/html/boost/parser/make_subrange.html
index 83607144..a14cf41b 100644
--- a/doc/html/boost/parser/make_subrange.html
+++ b/doc/html/boost/parser/make_subrange.html
@@ -27,7 +27,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S <span class="special">=</span> <span class="identifier">I</span><span class="special">&gt;</span> 
   <span class="keyword">constexpr</span> <a class="link" href="subrange.html" title="Struct template subrange">subrange</a><span class="special">&lt;</span> <span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span> <span class="special">&gt;</span> <span class="identifier">make_subrange</span><span class="special">(</span><span class="identifier">I</span> first<span class="special">,</span> <span class="identifier">S</span> last<span class="special">)</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm36413"></a><h2>Description</h2>
+<a name="idm36878"></a><h2>Description</h2>
 <p>Makes a <code class="computeroutput">subrange&lt;I, S&gt;</code> from an <code class="computeroutput">I</code> and an <code class="computeroutput">S</code>. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/merge.html b/doc/html/boost/parser/merge.html
new file mode 100644
index 00000000..de088927
--- /dev/null
+++ b/doc/html/boost/parser/merge.html
@@ -0,0 +1,42 @@
+<html>
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+<title>Global merge</title>
+<link rel="stylesheet" href="../../boostbook.css" type="text/css">
+<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
+<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
+<link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
+<link rel="prev" href="skip.html" title="Global skip">
+<link rel="next" href="separate.html" title="Global separate">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+</head>
+<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
+<div class="spirit-nav">
+<a accesskey="p" href="skip.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="separate.html"><img src="../../images/next.png" alt="Next"></a>
+</div>
+<div class="refentry">
+<a name="boost.parser.merge"></a><div class="titlepage"></div>
+<div class="refnamediv">
+<h2><span class="refentrytitle">Global merge</span></h2>
+<p>boost::parser::merge</p>
+</div>
+<h2 class="refsynopsisdiv-title">Synopsis</h2>
+<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
+
+</span><span class="keyword">constexpr</span> <a class="link" href="merge_directive.html" title="Struct merge_directive">merge_directive</a> merge<span class="special">;</span></pre></div>
+<div class="refsect1">
+<a name="idm33329"></a><h2>Description</h2>
+<p>The <code class="computeroutput"><a class="link" href="merge_directive.html" title="Struct merge_directive">merge_directive</a></code>, whose <code class="computeroutput">operator[]</code> returns a <code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a>&lt;P2&gt;</code>, from a given parser of type <code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a>&lt;P&gt;</code>, where <code class="computeroutput">P</code> is a <code class="computeroutput"><a class="link" href="seq_parser.html" title="Struct template seq_parser">seq_parser</a></code>. <code class="computeroutput">P2</code> is the same as <code class="computeroutput">P</code>, except that its <code class="computeroutput">CombiningGroups</code> template parameter is replaced with a tag type that causes the subparser's attributes to be merged into a single attribute. </p>
+</div>
+</div>
+<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
+        Distributed under the Boost Software License, Version 1.0. (See accompanying
+        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
+      </p>
+</div>
+<hr>
+<div class="spirit-nav">
+<a accesskey="p" href="skip.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="separate.html"><img src="../../images/next.png" alt="Next"></a>
+</div>
+</body>
+</html>
diff --git a/doc/html/boost/parser/merge_directive.html b/doc/html/boost/parser/merge_directive.html
new file mode 100644
index 00000000..aa6977ec
--- /dev/null
+++ b/doc/html/boost/parser/merge_directive.html
@@ -0,0 +1,58 @@
+<html>
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+<title>Struct merge_directive</title>
+<link rel="stylesheet" href="../../boostbook.css" type="text/css">
+<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
+<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
+<link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
+<link rel="prev" href="lexeme_parser.html" title="Struct template lexeme_parser">
+<link rel="next" href="no_case_parser.html" title="Struct template no_case_parser">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+</head>
+<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
+<div class="spirit-nav">
+<a accesskey="p" href="lexeme_parser.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="no_case_parser.html"><img src="../../images/next.png" alt="Next"></a>
+</div>
+<div class="refentry">
+<a name="boost.parser.merge_directive"></a><div class="titlepage"></div>
+<div class="refnamediv">
+<h2><span class="refentrytitle">Struct merge_directive</span></h2>
+<p>boost::parser::merge_directive</p>
+</div>
+<h2 class="refsynopsisdiv-title">Synopsis</h2>
+<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
+
+</span>
+<span class="keyword">struct</span> <a class="link" href="merge_directive.html" title="Struct merge_directive">merge_directive</a> <span class="special">{</span>
+
+  <span class="comment">// <a class="link" href="merge_directive.html#idm19745-bb">public member functions</a></span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ParserTuple<span class="special">,</span> <span class="keyword">typename</span> BacktrackingTuple<span class="special">,</span> 
+           <span class="keyword">typename</span> CombiningGroups<span class="special">&gt;</span> 
+    <span class="keyword">constexpr</span> <span class="keyword">auto</span> 
+    <a class="link" href="merge_directive.html#idm19746-bb"><span class="keyword">operator</span><span class="special">[</span><span class="special">]</span></a><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <a class="link" href="seq_parser.html" title="Struct template seq_parser">seq_parser</a><span class="special">&lt;</span> <span class="identifier">ParserTuple</span><span class="special">,</span> <span class="identifier">BacktrackingTuple</span><span class="special">,</span> <span class="identifier">CombiningGroups</span> <span class="special">&gt;</span> <span class="special">&gt;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+<span class="special">}</span><span class="special">;</span></pre></div>
+<div class="refsect1">
+<a name="idm25308"></a><h2>Description</h2>
+<p>A directive type that can only be used on sequence parsers, that forces the merge of all the sequence_parser's subparser's attributes into a single attribute. </p>
+<div class="refsect2">
+<a name="idm25311"></a><h3>
+<a name="idm19745-bb"></a><code class="computeroutput">merge_directive</code> public member functions</h3>
+<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ParserTuple<span class="special">,</span> <span class="keyword">typename</span> BacktrackingTuple<span class="special">,</span> 
+         <span class="keyword">typename</span> CombiningGroups<span class="special">&gt;</span> 
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> 
+  <a name="idm19746-bb"></a><span class="keyword">operator</span><span class="special">[</span><span class="special">]</span><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <a class="link" href="seq_parser.html" title="Struct template seq_parser">seq_parser</a><span class="special">&lt;</span> <span class="identifier">ParserTuple</span><span class="special">,</span> <span class="identifier">BacktrackingTuple</span><span class="special">,</span> <span class="identifier">CombiningGroups</span> <span class="special">&gt;</span> <span class="special">&gt;</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li></ol></div>
+</div>
+</div>
+</div>
+<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
+        Distributed under the Boost Software License, Version 1.0. (See accompanying
+        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
+      </p>
+</div>
+<hr>
+<div class="spirit-nav">
+<a accesskey="p" href="lexeme_parser.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="no_case_parser.html"><img src="../../images/next.png" alt="Next"></a>
+</div>
+</body>
+</html>
diff --git a/doc/html/boost/parser/no_case.html b/doc/html/boost/parser/no_case.html
index 5940fd7a..f7a298e6 100644
--- a/doc/html/boost/parser/no_case.html
+++ b/doc/html/boost/parser/no_case.html
@@ -25,8 +25,8 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="keyword">constexpr</span> <a class="link" href="directive.html" title="Struct template directive">directive</a><span class="special">&lt;</span> <a class="link" href="no_case_parser.html" title="Struct template no_case_parser">no_case_parser</a> <span class="special">&gt;</span> no_case<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm32897"></a><h2>Description</h2>
-<p>The <code class="computeroutput">no_case</code> directive, whose <code class="computeroutput">operator[]</code> returns an <code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a>&lt;<a class="link" href="no_case_parser.html" title="Struct template no_case_parser">no_case_parser</a>&lt;P&gt;&gt;</code> from a given parser of type <code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a>&lt;P&gt;</code>. </p>
+<a name="idm33280"></a><h2>Description</h2>
+<p>The <code class="computeroutput">no_case</code> directive, whose <code class="computeroutput">operator[]</code> returns a <code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a>&lt;<a class="link" href="no_case_parser.html" title="Struct template no_case_parser">no_case_parser</a>&lt;P&gt;&gt;</code> from a given parser of type <code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a>&lt;P&gt;</code>. </p>
 </div>
 </div>
 <div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
diff --git a/doc/html/boost/parser/no_case_parser.html b/doc/html/boost/parser/no_case_parser.html
index 8d4173a6..12e92374 100644
--- a/doc/html/boost/parser/no_case_parser.html
+++ b/doc/html/boost/parser/no_case_parser.html
@@ -6,13 +6,13 @@
 <meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
 <link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="lexeme_parser.html" title="Struct template lexeme_parser">
+<link rel="prev" href="merge_directive.html" title="Struct merge_directive">
 <link rel="next" href="none.html" title="Struct none">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="lexeme_parser.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="none.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="merge_directive.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="none.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
 <a name="boost.parser.no_case_parser"></a><div class="titlepage"></div>
@@ -26,14 +26,14 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
 <span class="keyword">struct</span> <a class="link" href="no_case_parser.html" title="Struct template no_case_parser">no_case_parser</a> <span class="special">{</span>
 
-  <span class="comment">// <a class="link" href="no_case_parser.html#idm19483-bb">public member functions</a></span>
+  <span class="comment">// <a class="link" href="no_case_parser.html#idm19767-bb">public member functions</a></span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-    <span class="keyword">auto</span> <a class="link" href="no_case_parser.html#idm19484-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">auto</span> <a class="link" href="no_case_parser.html#idm19768-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="no_case_parser.html#idm19508-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">void</span> <a class="link" href="no_case_parser.html#idm19792-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">,</span> 
               <span class="identifier">Attribute</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
 
@@ -41,20 +41,20 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
   <span class="identifier">Parser</span> <span class="identifier">parser_</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm25145"></a><h2>Description</h2>
+<a name="idm25468"></a><h2>Description</h2>
 <p>Applies the given parser <code class="computeroutput">p</code> of type <code class="computeroutput">Parser</code>, enabling case-insensitive matching, based on Unicode case folding. The parse succeeds iff <code class="computeroutput">p</code> succeeds. The attribute produced is the type of attribute produced by <code class="computeroutput">Parser</code>. </p>
 <div class="refsect2">
-<a name="idm25152"></a><h3>
-<a name="idm19483-bb"></a><code class="computeroutput">no_case_parser</code> public member functions</h3>
+<a name="idm25475"></a><h3>
+<a name="idm19767-bb"></a><code class="computeroutput">no_case_parser</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-  <span class="keyword">auto</span> <a name="idm19484-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="keyword">auto</span> <a name="idm19768-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context_<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm19508-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="keyword">void</span> <a name="idm19792-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context_<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">,</span> <span class="identifier">Attribute</span> <span class="special">&amp;</span> retval<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 </ol></div>
@@ -68,7 +68,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="lexeme_parser.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="none.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="merge_directive.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="none.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/none.html b/doc/html/boost/parser/none.html
index d02cba31..b1680a0c 100644
--- a/doc/html/boost/parser/none.html
+++ b/doc/html/boost/parser/none.html
@@ -26,117 +26,117 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span>
 <span class="keyword">struct</span> <a class="link" href="none.html" title="Struct none">none</a> <span class="special">{</span>
   <span class="comment">// <a class="link" href="none.html#boost.parser.noneconstruct-copy-destruct">construct/copy/destruct</a></span>
-  <a class="link" href="none.html#idm19802-bb"><span class="identifier">none</span></a><span class="special">(</span><span class="special">)</span> <span class="special">=</span> <span class="keyword">default</span><span class="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html#idm19803-bb"><span class="identifier">none</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <span class="special">&amp;</span> <a class="link" href="none.html#idm19808-bb"><span class="keyword">operator</span><span class="special">=</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="none.html#idm20086-bb"><span class="identifier">none</span></a><span class="special">(</span><span class="special">)</span> <span class="special">=</span> <span class="keyword">default</span><span class="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html#idm20087-bb"><span class="identifier">none</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <span class="special">&amp;</span> <a class="link" href="none.html#idm20092-bb"><span class="keyword">operator</span><span class="special">=</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 
-  <span class="comment">// <a class="link" href="none.html#idm19536-bb">public member functions</a></span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html#idm19537-bb"><span class="keyword">operator</span> <span class="identifier">T</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
-  <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19541-bb"><span class="keyword">operator</span><span class="special">+</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
-  <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19544-bb"><span class="keyword">operator</span><span class="special">-</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
-  <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19547-bb"><span class="keyword">operator</span><span class="special">*</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
-  <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19550-bb"><span class="keyword">operator</span><span class="special">~</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
-  <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19553-bb"><span class="keyword">operator</span><span class="special">&amp;</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
-  <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19556-bb"><span class="keyword">operator</span><span class="special">!</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
-  <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19559-bb"><span class="keyword">operator</span><span class="special">++</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
-  <a class="link" href="none.html" title="Struct none">none</a> <span class="special">&amp;</span> <a class="link" href="none.html#idm19562-bb"><span class="keyword">operator</span><span class="special">++</span></a><span class="special">(</span><span class="keyword">int</span><span class="special">)</span><span class="special">;</span>
-  <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19567-bb"><span class="keyword">operator</span><span class="special">--</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
-  <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19570-bb"><span class="keyword">operator</span><span class="special">--</span></a><span class="special">(</span><span class="keyword">int</span><span class="special">)</span><span class="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19575-bb"><span class="keyword">operator</span><span class="special">&lt;&lt;</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19582-bb"><span class="keyword">operator</span><span class="special">&gt;&gt;</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19589-bb"><span class="keyword">operator</span><span class="special">*</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19596-bb"><span class="keyword">operator</span><span class="special">/</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19603-bb"><span class="keyword">operator</span><span class="special">%</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19610-bb"><span class="keyword">operator</span><span class="special">+</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19617-bb"><span class="keyword">operator</span><span class="special">-</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19624-bb"><span class="keyword">operator</span><span class="special">&lt;</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19631-bb"><span class="keyword">operator</span><span class="special">&gt;</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19638-bb"><span class="keyword">operator</span><span class="special">&lt;=</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19645-bb"><span class="keyword">operator</span><span class="special">&gt;=</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19652-bb"><span class="keyword">operator</span><span class="special">==</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19659-bb"><span class="keyword">operator</span><span class="special">!=</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19666-bb"><span class="keyword">operator</span><span class="special">||</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19673-bb"><span class="keyword">operator</span><span class="special">&amp;&amp;</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19680-bb"><span class="keyword">operator</span><span class="special">&amp;</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19687-bb"><span class="keyword">operator</span><span class="special">|</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19694-bb"><span class="keyword">operator</span><span class="special">^</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19701-bb"><span class="keyword">operator</span><span class="special">,</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19708-bb"><span class="keyword">operator</span><span class="special">-&gt;*</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19715-bb"><span class="keyword">operator</span><span class="special">&lt;&lt;=</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19722-bb"><span class="keyword">operator</span><span class="special">&gt;&gt;=</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19729-bb"><span class="keyword">operator</span><span class="special">*=</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19736-bb"><span class="keyword">operator</span><span class="special">/=</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19743-bb"><span class="keyword">operator</span><span class="special">%=</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19750-bb"><span class="keyword">operator</span><span class="special">+=</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19757-bb"><span class="keyword">operator</span><span class="special">-=</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19764-bb"><span class="keyword">operator</span><span class="special">&amp;=</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19771-bb"><span class="keyword">operator</span><span class="special">|=</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19778-bb"><span class="keyword">operator</span><span class="special">^=</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19785-bb"><span class="keyword">operator</span><span class="special">[</span><span class="special">]</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span><span class="special">...</span> Args<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19792-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">Args</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
-  <span class="keyword">void</span> <a class="link" href="none.html#idm19800-bb"><span class="identifier">fail</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+  <span class="comment">// <a class="link" href="none.html#idm19820-bb">public member functions</a></span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html#idm19821-bb"><span class="keyword">operator</span> <span class="identifier">T</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+  <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19825-bb"><span class="keyword">operator</span><span class="special">+</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+  <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19828-bb"><span class="keyword">operator</span><span class="special">-</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+  <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19831-bb"><span class="keyword">operator</span><span class="special">*</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+  <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19834-bb"><span class="keyword">operator</span><span class="special">~</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+  <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19837-bb"><span class="keyword">operator</span><span class="special">&amp;</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+  <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19840-bb"><span class="keyword">operator</span><span class="special">!</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+  <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19843-bb"><span class="keyword">operator</span><span class="special">++</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="none.html" title="Struct none">none</a> <span class="special">&amp;</span> <a class="link" href="none.html#idm19846-bb"><span class="keyword">operator</span><span class="special">++</span></a><span class="special">(</span><span class="keyword">int</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19851-bb"><span class="keyword">operator</span><span class="special">--</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19854-bb"><span class="keyword">operator</span><span class="special">--</span></a><span class="special">(</span><span class="keyword">int</span><span class="special">)</span><span class="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19859-bb"><span class="keyword">operator</span><span class="special">&lt;&lt;</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19866-bb"><span class="keyword">operator</span><span class="special">&gt;&gt;</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19873-bb"><span class="keyword">operator</span><span class="special">*</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19880-bb"><span class="keyword">operator</span><span class="special">/</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19887-bb"><span class="keyword">operator</span><span class="special">%</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19894-bb"><span class="keyword">operator</span><span class="special">+</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19901-bb"><span class="keyword">operator</span><span class="special">-</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19908-bb"><span class="keyword">operator</span><span class="special">&lt;</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19915-bb"><span class="keyword">operator</span><span class="special">&gt;</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19922-bb"><span class="keyword">operator</span><span class="special">&lt;=</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19929-bb"><span class="keyword">operator</span><span class="special">&gt;=</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19936-bb"><span class="keyword">operator</span><span class="special">==</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19943-bb"><span class="keyword">operator</span><span class="special">!=</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19950-bb"><span class="keyword">operator</span><span class="special">||</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19957-bb"><span class="keyword">operator</span><span class="special">&amp;&amp;</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19964-bb"><span class="keyword">operator</span><span class="special">&amp;</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19971-bb"><span class="keyword">operator</span><span class="special">|</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19978-bb"><span class="keyword">operator</span><span class="special">^</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19985-bb"><span class="keyword">operator</span><span class="special">,</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19992-bb"><span class="keyword">operator</span><span class="special">-&gt;*</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm19999-bb"><span class="keyword">operator</span><span class="special">&lt;&lt;=</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm20006-bb"><span class="keyword">operator</span><span class="special">&gt;&gt;=</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm20013-bb"><span class="keyword">operator</span><span class="special">*=</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm20020-bb"><span class="keyword">operator</span><span class="special">/=</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm20027-bb"><span class="keyword">operator</span><span class="special">%=</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm20034-bb"><span class="keyword">operator</span><span class="special">+=</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm20041-bb"><span class="keyword">operator</span><span class="special">-=</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm20048-bb"><span class="keyword">operator</span><span class="special">&amp;=</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm20055-bb"><span class="keyword">operator</span><span class="special">|=</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm20062-bb"><span class="keyword">operator</span><span class="special">^=</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm20069-bb"><span class="keyword">operator</span><span class="special">[</span><span class="special">]</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span><span class="special">...</span> Args<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a class="link" href="none.html#idm20076-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">Args</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+  <span class="keyword">void</span> <a class="link" href="none.html#idm20084-bb"><span class="identifier">fail</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm25880"></a><h2>Description</h2>
+<a name="idm26203"></a><h2>Description</h2>
 <div class="refsect2">
-<a name="idm25882"></a><h3>
+<a name="idm26205"></a><h3>
 <a name="boost.parser.noneconstruct-copy-destruct"></a><code class="computeroutput">none</code> 
         public
        construct/copy/destruct</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
-<li class="listitem"><pre class="literallayout"><a name="idm19802-bb"></a><span class="identifier">none</span><span class="special">(</span><span class="special">)</span> <span class="special">=</span> <span class="keyword">default</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a name="idm19803-bb"></a><span class="identifier">none</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <span class="special">&amp;</span> <a name="idm19808-bb"></a><span class="keyword">operator</span><span class="special">=</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a name="idm20086-bb"></a><span class="identifier">none</span><span class="special">(</span><span class="special">)</span> <span class="special">=</span> <span class="keyword">default</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a name="idm20087-bb"></a><span class="identifier">none</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <span class="special">&amp;</span> <a name="idm20092-bb"></a><span class="keyword">operator</span><span class="special">=</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span></pre></li>
 </ol></div>
 </div>
 <div class="refsect2">
-<a name="idm25930"></a><h3>
-<a name="idm19536-bb"></a><code class="computeroutput">none</code> public member functions</h3>
+<a name="idm26253"></a><h3>
+<a name="idm19820-bb"></a><code class="computeroutput">none</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
-<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a name="idm19537-bb"></a><span class="keyword">operator</span> <span class="identifier">T</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><a class="link" href="none.html" title="Struct none">none</a> <a name="idm19541-bb"></a><span class="keyword">operator</span><span class="special">+</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><a class="link" href="none.html" title="Struct none">none</a> <a name="idm19544-bb"></a><span class="keyword">operator</span><span class="special">-</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><a class="link" href="none.html" title="Struct none">none</a> <a name="idm19547-bb"></a><span class="keyword">operator</span><span class="special">*</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><a class="link" href="none.html" title="Struct none">none</a> <a name="idm19550-bb"></a><span class="keyword">operator</span><span class="special">~</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><a class="link" href="none.html" title="Struct none">none</a> <a name="idm19553-bb"></a><span class="keyword">operator</span><span class="special">&amp;</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><a class="link" href="none.html" title="Struct none">none</a> <a name="idm19556-bb"></a><span class="keyword">operator</span><span class="special">!</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><a class="link" href="none.html" title="Struct none">none</a> <a name="idm19559-bb"></a><span class="keyword">operator</span><span class="special">++</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><a class="link" href="none.html" title="Struct none">none</a> <span class="special">&amp;</span> <a name="idm19562-bb"></a><span class="keyword">operator</span><span class="special">++</span><span class="special">(</span><span class="keyword">int</span><span class="special">)</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><a class="link" href="none.html" title="Struct none">none</a> <a name="idm19567-bb"></a><span class="keyword">operator</span><span class="special">--</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><a class="link" href="none.html" title="Struct none">none</a> <a name="idm19570-bb"></a><span class="keyword">operator</span><span class="special">--</span><span class="special">(</span><span class="keyword">int</span><span class="special">)</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19575-bb"></a><span class="keyword">operator</span><span class="special">&lt;&lt;</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19582-bb"></a><span class="keyword">operator</span><span class="special">&gt;&gt;</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19589-bb"></a><span class="keyword">operator</span><span class="special">*</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19596-bb"></a><span class="keyword">operator</span><span class="special">/</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19603-bb"></a><span class="keyword">operator</span><span class="special">%</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19610-bb"></a><span class="keyword">operator</span><span class="special">+</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19617-bb"></a><span class="keyword">operator</span><span class="special">-</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19624-bb"></a><span class="keyword">operator</span><span class="special">&lt;</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19631-bb"></a><span class="keyword">operator</span><span class="special">&gt;</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19638-bb"></a><span class="keyword">operator</span><span class="special">&lt;=</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19645-bb"></a><span class="keyword">operator</span><span class="special">&gt;=</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19652-bb"></a><span class="keyword">operator</span><span class="special">==</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19659-bb"></a><span class="keyword">operator</span><span class="special">!=</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19666-bb"></a><span class="keyword">operator</span><span class="special">||</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19673-bb"></a><span class="keyword">operator</span><span class="special">&amp;&amp;</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19680-bb"></a><span class="keyword">operator</span><span class="special">&amp;</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19687-bb"></a><span class="keyword">operator</span><span class="special">|</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19694-bb"></a><span class="keyword">operator</span><span class="special">^</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19701-bb"></a><span class="keyword">operator</span><span class="special">,</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19708-bb"></a><span class="keyword">operator</span><span class="special">-&gt;*</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19715-bb"></a><span class="keyword">operator</span><span class="special">&lt;&lt;=</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19722-bb"></a><span class="keyword">operator</span><span class="special">&gt;&gt;=</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19729-bb"></a><span class="keyword">operator</span><span class="special">*=</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19736-bb"></a><span class="keyword">operator</span><span class="special">/=</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19743-bb"></a><span class="keyword">operator</span><span class="special">%=</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19750-bb"></a><span class="keyword">operator</span><span class="special">+=</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19757-bb"></a><span class="keyword">operator</span><span class="special">-=</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19764-bb"></a><span class="keyword">operator</span><span class="special">&amp;=</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19771-bb"></a><span class="keyword">operator</span><span class="special">|=</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19778-bb"></a><span class="keyword">operator</span><span class="special">^=</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19785-bb"></a><span class="keyword">operator</span><span class="special">[</span><span class="special">]</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span><span class="special">...</span> Args<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19792-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">Args</span> <span class="keyword">const</span> <span class="special">&amp;</span> ...<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">void</span> <a name="idm19800-bb"></a><span class="identifier">fail</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a name="idm19821-bb"></a><span class="keyword">operator</span> <span class="identifier">T</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a class="link" href="none.html" title="Struct none">none</a> <a name="idm19825-bb"></a><span class="keyword">operator</span><span class="special">+</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a class="link" href="none.html" title="Struct none">none</a> <a name="idm19828-bb"></a><span class="keyword">operator</span><span class="special">-</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a class="link" href="none.html" title="Struct none">none</a> <a name="idm19831-bb"></a><span class="keyword">operator</span><span class="special">*</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a class="link" href="none.html" title="Struct none">none</a> <a name="idm19834-bb"></a><span class="keyword">operator</span><span class="special">~</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a class="link" href="none.html" title="Struct none">none</a> <a name="idm19837-bb"></a><span class="keyword">operator</span><span class="special">&amp;</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a class="link" href="none.html" title="Struct none">none</a> <a name="idm19840-bb"></a><span class="keyword">operator</span><span class="special">!</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a class="link" href="none.html" title="Struct none">none</a> <a name="idm19843-bb"></a><span class="keyword">operator</span><span class="special">++</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a class="link" href="none.html" title="Struct none">none</a> <span class="special">&amp;</span> <a name="idm19846-bb"></a><span class="keyword">operator</span><span class="special">++</span><span class="special">(</span><span class="keyword">int</span><span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a class="link" href="none.html" title="Struct none">none</a> <a name="idm19851-bb"></a><span class="keyword">operator</span><span class="special">--</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a class="link" href="none.html" title="Struct none">none</a> <a name="idm19854-bb"></a><span class="keyword">operator</span><span class="special">--</span><span class="special">(</span><span class="keyword">int</span><span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19859-bb"></a><span class="keyword">operator</span><span class="special">&lt;&lt;</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19866-bb"></a><span class="keyword">operator</span><span class="special">&gt;&gt;</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19873-bb"></a><span class="keyword">operator</span><span class="special">*</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19880-bb"></a><span class="keyword">operator</span><span class="special">/</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19887-bb"></a><span class="keyword">operator</span><span class="special">%</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19894-bb"></a><span class="keyword">operator</span><span class="special">+</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19901-bb"></a><span class="keyword">operator</span><span class="special">-</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19908-bb"></a><span class="keyword">operator</span><span class="special">&lt;</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19915-bb"></a><span class="keyword">operator</span><span class="special">&gt;</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19922-bb"></a><span class="keyword">operator</span><span class="special">&lt;=</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19929-bb"></a><span class="keyword">operator</span><span class="special">&gt;=</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19936-bb"></a><span class="keyword">operator</span><span class="special">==</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19943-bb"></a><span class="keyword">operator</span><span class="special">!=</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19950-bb"></a><span class="keyword">operator</span><span class="special">||</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19957-bb"></a><span class="keyword">operator</span><span class="special">&amp;&amp;</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19964-bb"></a><span class="keyword">operator</span><span class="special">&amp;</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19971-bb"></a><span class="keyword">operator</span><span class="special">|</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19978-bb"></a><span class="keyword">operator</span><span class="special">^</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19985-bb"></a><span class="keyword">operator</span><span class="special">,</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19992-bb"></a><span class="keyword">operator</span><span class="special">-&gt;*</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm19999-bb"></a><span class="keyword">operator</span><span class="special">&lt;&lt;=</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm20006-bb"></a><span class="keyword">operator</span><span class="special">&gt;&gt;=</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm20013-bb"></a><span class="keyword">operator</span><span class="special">*=</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm20020-bb"></a><span class="keyword">operator</span><span class="special">/=</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm20027-bb"></a><span class="keyword">operator</span><span class="special">%=</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm20034-bb"></a><span class="keyword">operator</span><span class="special">+=</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm20041-bb"></a><span class="keyword">operator</span><span class="special">-=</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm20048-bb"></a><span class="keyword">operator</span><span class="special">&amp;=</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm20055-bb"></a><span class="keyword">operator</span><span class="special">|=</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm20062-bb"></a><span class="keyword">operator</span><span class="special">^=</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm20069-bb"></a><span class="keyword">operator</span><span class="special">[</span><span class="special">]</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span><span class="special">...</span> Args<span class="special">&gt;</span> <a class="link" href="none.html" title="Struct none">none</a> <a name="idm20076-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">Args</span> <span class="keyword">const</span> <span class="special">&amp;</span> ...<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">void</span> <a name="idm20084-bb"></a><span class="identifier">fail</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 </ol></div>
 </div>
 </div>
diff --git a/doc/html/boost/parser/null_sentinel_t.html b/doc/html/boost/parser/null_sentinel_t.html
index e8b726ab..214bdab7 100644
--- a/doc/html/boost/parser/null_sentinel_t.html
+++ b/doc/html/boost/parser/null_sentinel_t.html
@@ -7,12 +7,12 @@
 <link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../header/boost/parser/parser_fwd_hpp.html" title="Header &lt;boost/parser/parser_fwd.hpp&gt;">
 <link rel="prev" href="../../header/boost/parser/parser_fwd_hpp.html" title="Header &lt;boost/parser/parser_fwd.hpp&gt;">
-<link rel="next" href="report_error_idm22877.html" title="Function template _report_error">
+<link rel="next" href="enable_optional.html" title="Global enable_optional">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="../../header/boost/parser/parser_fwd_hpp.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="report_error_idm22877.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="../../header/boost/parser/parser_fwd_hpp.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="enable_optional.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
 <a name="boost.parser.null_sentinel_t"></a><div class="titlepage"></div>
@@ -26,7 +26,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span>
 <span class="keyword">typedef</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <span class="identifier">null_sentinel_t</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm35932"></a><h2>Description</h2>
+<a name="idm36379"></a><h2>Description</h2>
 <p>A sentinel type that compares equal to a pointer to a character value type, iff the pointer is null. </p>
 </div>
 </div>
@@ -37,7 +37,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="../../header/boost/parser/parser_fwd_hpp.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="report_error_idm22877.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="../../header/boost/parser/parser_fwd_hpp.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="enable_optional.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/oct.html b/doc/html/boost/parser/oct.html
index 984f397a..9bf8092a 100644
--- a/doc/html/boost/parser/oct.html
+++ b/doc/html/boost/parser/oct.html
@@ -25,7 +25,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="keyword">constexpr</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <a class="link" href="uint_parser.html" title="Struct template uint_parser">uint_parser</a><span class="special">&lt;</span> <span class="keyword">unsigned</span> <span class="keyword">int</span><span class="special">,</span> <span class="number">8</span> <span class="special">&gt;</span> <span class="special">&gt;</span> oct<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm33149"></a><h2>Description</h2>
+<a name="idm33592"></a><h2>Description</h2>
 <p>The octal unsigned integer parser. Produces an <code class="computeroutput">unsigned int</code> attribute. To parse a particular value <code class="computeroutput">x</code>, use <code class="computeroutput">oct(x)</code>. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/omit.html b/doc/html/boost/parser/omit.html
index df9217d4..da761d4d 100644
--- a/doc/html/boost/parser/omit.html
+++ b/doc/html/boost/parser/omit.html
@@ -25,8 +25,8 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="keyword">constexpr</span> <a class="link" href="directive.html" title="Struct template directive">directive</a><span class="special">&lt;</span> <a class="link" href="omit_parser.html" title="Struct template omit_parser">omit_parser</a> <span class="special">&gt;</span> omit<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm32789"></a><h2>Description</h2>
-<p>The <code class="computeroutput">omit</code> directive, whose <code class="computeroutput">operator[]</code> returns an <code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a>&lt;<a class="link" href="omit_parser.html" title="Struct template omit_parser">omit_parser</a>&lt;P&gt;&gt;</code> from a given parser of type <code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a>&lt;P&gt;</code>. </p>
+<a name="idm33172"></a><h2>Description</h2>
+<p>The <code class="computeroutput">omit</code> directive, whose <code class="computeroutput">operator[]</code> returns a <code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a>&lt;<a class="link" href="omit_parser.html" title="Struct template omit_parser">omit_parser</a>&lt;P&gt;&gt;</code> from a given parser of type <code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a>&lt;P&gt;</code>. </p>
 </div>
 </div>
 <div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
diff --git a/doc/html/boost/parser/omit_parser.html b/doc/html/boost/parser/omit_parser.html
index 3710a7ae..361dd7ec 100644
--- a/doc/html/boost/parser/omit_parser.html
+++ b/doc/html/boost/parser/omit_parser.html
@@ -26,15 +26,15 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
 <span class="keyword">struct</span> <a class="link" href="omit_parser.html" title="Struct template omit_parser">omit_parser</a> <span class="special">{</span>
 
-  <span class="comment">// <a class="link" href="omit_parser.html#idm19826-bb">public member functions</a></span>
+  <span class="comment">// <a class="link" href="omit_parser.html#idm20110-bb">public member functions</a></span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-    <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="omit_parser.html#idm19827-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="omit_parser.html#idm20111-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
                      <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> 
                      <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="omit_parser.html#idm19852-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">void</span> <a class="link" href="omit_parser.html#idm20136-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">,</span> 
               <span class="identifier">Attribute</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
 
@@ -42,21 +42,21 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
   <span class="identifier">Parser</span> <span class="identifier">parser_</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm26757"></a><h2>Description</h2>
+<a name="idm27080"></a><h2>Description</h2>
 <p>Applies the given parser <code class="computeroutput">p</code> of type <code class="computeroutput">Parser</code>. This parser produces no attribute, and suppresses the production of any attributes that would otherwise be produced by <code class="computeroutput">p</code>. The parse succeeds iff <code class="computeroutput">p</code> succeeds. </p>
 <div class="refsect2">
-<a name="idm26764"></a><h3>
-<a name="idm19826-bb"></a><code class="computeroutput">omit_parser</code> public member functions</h3>
+<a name="idm27087"></a><h3>
+<a name="idm20110-bb"></a><code class="computeroutput">omit_parser</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-  <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a name="idm19827-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a name="idm20111-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
                    <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> 
                    <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> 
                    <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm19852-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="keyword">void</span> <a name="idm20136-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">,</span> <span class="identifier">Attribute</span> <span class="special">&amp;</span> retval<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 </ol></div>
diff --git a/doc/html/boost/parser/one_plus_parser.html b/doc/html/boost/parser/one_plus_parser.html
index a7960618..448b89d8 100644
--- a/doc/html/boost/parser/one_plus_parser.html
+++ b/doc/html/boost/parser/one_plus_parser.html
@@ -26,19 +26,19 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
 <span class="keyword">struct</span> <a class="link" href="one_plus_parser.html" title="Struct template one_plus_parser">one_plus_parser</a> <span class="special">:</span> <span class="keyword">public</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">parser</span><span class="special">::</span><span class="identifier">repeat_parser</span><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> <span class="special">{</span>
   <span class="comment">// <a class="link" href="one_plus_parser.html#boost.parser.one_plus_parserconstruct-copy-destruct">construct/copy/destruct</a></span>
-  <a class="link" href="one_plus_parser.html#idm19896-bb"><span class="identifier">one_plus_parser</span></a><span class="special">(</span><span class="identifier">Parser</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="one_plus_parser.html#idm20180-bb"><span class="identifier">one_plus_parser</span></a><span class="special">(</span><span class="identifier">Parser</span><span class="special">)</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm26907"></a><h2>Description</h2>
+<a name="idm27230"></a><h2>Description</h2>
 <p>Repeats the application of another parser <code class="computeroutput">p</code> of type <code class="computeroutput">Parser</code>, <code class="computeroutput">[1, Inf)</code> times. The parse succeeds iff <code class="computeroutput">p</code> succeeds at least once. The attribute produced is a sequence of the type of attribute produced by <code class="computeroutput">Parser</code>.</p>
 <p>A simplified <code class="computeroutput"><a class="link" href="repeat_parser.html" title="Struct template repeat_parser">repeat_parser</a></code> that applies <code class="computeroutput">parser</code> one or more times. <br>
  </p>
 <div class="refsect2">
-<a name="idm26920"></a><h3>
+<a name="idm27243"></a><h3>
 <a name="boost.parser.one_plus_parserconstruct-copy-destruct"></a><code class="computeroutput">one_plus_parser</code> 
         public
        construct/copy/destruct</h3>
-<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><a name="idm19896-bb"></a><span class="identifier">one_plus_parser</span><span class="special">(</span><span class="identifier">Parser</span> parser<span class="special">)</span><span class="special">;</span></pre></li></ol></div>
+<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><a name="idm20180-bb"></a><span class="identifier">one_plus_parser</span><span class="special">(</span><span class="identifier">Parser</span> parser<span class="special">)</span><span class="special">;</span></pre></li></ol></div>
 </div>
 </div>
 </div>
diff --git a/doc/html/boost/parser/operator%_idm22372.html b/doc/html/boost/parser/operator%_idm22372.html
deleted file mode 100644
index 955be836..00000000
--- a/doc/html/boost/parser/operator%_idm22372.html
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@@ -1,44 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template operator%</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
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-</div>
-<div class="refentry">
-<a name="boost.parser.operator%_idm22372"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template operator%</span></h2>
-<p>boost::parser::operator%</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="special">%</span><span class="special">(</span><span class="keyword">char</span> c<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34666"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(c) % rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="operator-_idm22357.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="operator%_idm22384.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/operator%_idm22374.html b/doc/html/boost/parser/operator%_idm22374.html
deleted file mode 100644
index a2b2cdd6..00000000
--- a/doc/html/boost/parser/operator%_idm22374.html
+++ /dev/null
@@ -1,44 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template operator%</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
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-</div>
-<div class="refentry">
-<a name="boost.parser.operator%_idm22374"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template operator%</span></h2>
-<p>boost::parser::operator%</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="special">%</span><span class="special">(</span><span class="keyword">char</span> c<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34668"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(c) % rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="operator-_idm22359.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="operator%_idm22386.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/operator%_idm22375.html b/doc/html/boost/parser/operator%_idm22375.html
deleted file mode 100644
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--- a/doc/html/boost/parser/operator%_idm22375.html
+++ /dev/null
@@ -1,44 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template operator%</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="operator-_idm22360.html" title="Function template operator-">
-<link rel="next" href="operator%_idm22387.html" title="Function template operator%">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="operator-_idm22360.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="operator%_idm22387.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.operator%_idm22375"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template operator%</span></h2>
-<p>boost::parser::operator%</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="special">%</span><span class="special">(</span><span class="keyword">char</span> c<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34669"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(c) % rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="operator-_idm22360.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="operator%_idm22387.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/operator%_idm22376.html b/doc/html/boost/parser/operator%_idm22376.html
deleted file mode 100644
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+++ /dev/null
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-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template operator%</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
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-</div>
-<div class="refentry">
-<a name="boost.parser.operator%_idm22376"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template operator%</span></h2>
-<p>boost::parser::operator%</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="special">%</span><span class="special">(</span><span class="keyword">char</span> c<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34669"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(c) % rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="operator-_idm22361.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="operator%_idm22388.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/operator%_idm22384.html b/doc/html/boost/parser/operator%_idm22384.html
deleted file mode 100644
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+++ /dev/null
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-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template operator%</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
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-</div>
-<div class="refentry">
-<a name="boost.parser.operator%_idm22384"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template operator%</span></h2>
-<p>boost::parser::operator%</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="special">%</span><span class="special">(</span><span class="keyword">char32_t</span> c<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34698"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(c) % rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
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diff --git a/doc/html/boost/parser/operator%_idm22386.html b/doc/html/boost/parser/operator%_idm22386.html
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-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
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-<a name="idm34700"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(c) % rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
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-<a name="idm34701"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(c) % rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-</span>
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-<div class="refsect1">
-<a name="idm34701"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(c) % rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-</span>
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-<a name="idm34685"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(c) % rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-
-</span>
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-<div class="refsect1">
-<a name="idm34746"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(str) % rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-
-</span>
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-<div class="refsect1">
-<a name="idm34748"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(str) % rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-</div>
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-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
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-<div class="refsect1">
-<a name="idm34588"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">!rhs &gt;&gt; lit(c)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
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-</span>
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-<div class="refsect1">
-<a name="idm34589"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">!rhs &gt;&gt; lit(c)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-</span>
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-<div class="refsect1">
-<a name="idm34589"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">!rhs &gt;&gt; lit(c)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-</span>
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-<div class="refsect1">
-<a name="idm34573"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">!rhs &gt;&gt; lit(c)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-
-</span>
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-<div class="refsect1">
-<a name="idm34634"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">!rhs &gt;&gt; lit(str)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-</span>
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-<div class="refsect1">
-<a name="idm34636"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">!rhs &gt;&gt; lit(str)</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="special">&gt;&gt;</span><span class="special">(</span><span class="keyword">char32_t</span> c<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34250"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(c) &gt;&gt; rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<p>boost::parser::operator&gt;&gt;</p>
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-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="special">&gt;&gt;</span><span class="special">(</span><span class="keyword">char32_t</span> c<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34252"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(c) &gt;&gt; rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<p>boost::parser::operator&gt;&gt;</p>
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-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="special">&gt;&gt;</span><span class="special">(</span><span class="keyword">char32_t</span> c<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34253"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(c) &gt;&gt; rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<p>boost::parser::operator&gt;&gt;</p>
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-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="special">&gt;&gt;</span><span class="special">(</span><span class="keyword">char32_t</span> c<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34253"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(c) &gt;&gt; rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<p>boost::parser::operator&gt;&gt;</p>
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-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="special">&gt;&gt;</span><span class="special">(</span><span class="keyword">char</span> c<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34237"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(c) &gt;&gt; rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<p>boost::parser::operator&gt;&gt;</p>
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-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="special">&gt;&gt;</span><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span> r<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34298"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(str) &gt;&gt; rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<p>boost::parser::operator&gt;&gt;</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
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-<div class="refsect1">
-<a name="idm34300"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(str) &gt;&gt; rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<p>boost::parser::operator&gt;&gt;</p>
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-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
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-<div class="refsect1">
-<a name="idm34301"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(str) &gt;&gt; rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> 
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-<div class="refsect1">
-<a name="idm34301"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(str) &gt;&gt; rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template operator&gt;&gt;</span></h2>
-<p>boost::parser::operator&gt;&gt;</p>
-</div>
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-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="special">&gt;&gt;</span><span class="special">(</span><span class="keyword">char32_t</span> c<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34269"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(c) &gt;&gt; rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<h2><span class="refentrytitle">Function template operator&gt;</span></h2>
-<p>boost::parser::operator&gt;</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="special">&gt;</span><span class="special">(</span><span class="keyword">char</span> c<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34330"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(c) &gt; rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<p>boost::parser::operator&gt;</p>
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-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="special">&gt;</span><span class="special">(</span><span class="keyword">char</span> c<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34332"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(c) &gt; rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
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-<p>boost::parser::operator&gt;</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="special">&gt;</span><span class="special">(</span><span class="keyword">char</span> c<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34333"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(c) &gt; rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<p>boost::parser::operator&gt;</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="special">&gt;</span><span class="special">(</span><span class="keyword">char</span> c<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34333"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(c) &gt; rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<h2><span class="refentrytitle">Function template operator&gt;&gt;</span></h2>
-<p>boost::parser::operator&gt;&gt;</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="special">&gt;&gt;</span><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span> r<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34317"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(str) &gt;&gt; rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template operator&gt;</span></h2>
-<p>boost::parser::operator&gt;</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="special">&gt;</span><span class="special">(</span><span class="keyword">char32_t</span> c<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34362"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(c) &gt; rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<p>boost::parser::operator&gt;</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="special">&gt;</span><span class="special">(</span><span class="keyword">char32_t</span> c<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34364"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(c) &gt; rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<p>boost::parser::operator&gt;</p>
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-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="special">&gt;</span><span class="special">(</span><span class="keyword">char32_t</span> c<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34365"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(c) &gt; rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="special">&gt;</span><span class="special">(</span><span class="keyword">char32_t</span> c<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34365"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(c) &gt; rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="special">&gt;</span><span class="special">(</span><span class="keyword">char</span> c<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34349"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(c) &gt; rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> 
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-<div class="refsect1">
-<a name="idm34410"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(str) &gt; rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<p>boost::parser::operator&gt;</p>
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-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> 
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-<div class="refsect1">
-<a name="idm34412"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(str) &gt; rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<p>boost::parser::operator&gt;</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
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-<div class="refsect1">
-<a name="idm34413"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(str) &gt; rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<p>boost::parser::operator&gt;</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
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-<div class="refsect1">
-<a name="idm34413"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(str) &gt; rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="special">&gt;</span><span class="special">(</span><span class="keyword">char32_t</span> c<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34381"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(c) &gt; rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="special">|</span><span class="special">(</span><span class="keyword">char</span> c<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34442"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(c) | rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<p>boost::parser::operator|</p>
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-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="special">|</span><span class="special">(</span><span class="keyword">char</span> c<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34444"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(c) | rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<p>boost::parser::operator|</p>
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-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="special">|</span><span class="special">(</span><span class="keyword">char</span> c<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34445"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(c) | rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<p>boost::parser::operator|</p>
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-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="special">|</span><span class="special">(</span><span class="keyword">char</span> c<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34445"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(c) | rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<p>boost::parser::operator&gt;</p>
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-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="special">&gt;</span><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span> r<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34429"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(str) &gt; rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="special">|</span><span class="special">(</span><span class="keyword">char32_t</span> c<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34474"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(c) | rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="special">|</span><span class="special">(</span><span class="keyword">char32_t</span> c<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34476"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(c) | rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="special">|</span><span class="special">(</span><span class="keyword">char32_t</span> c<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34477"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(c) | rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<p>boost::parser::operator|</p>
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-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="special">|</span><span class="special">(</span><span class="keyword">char32_t</span> c<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34477"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(c) | rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="special">|</span><span class="special">(</span><span class="keyword">char</span> c<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34461"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(c) | rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
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-<div class="refsect1">
-<a name="idm34522"></a><h2>Description</h2>
-<p>Returns a parser equivalent to <code class="computeroutput">lit(str) | rhs</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
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-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-</div>
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-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
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 <div class="refsect1">
-<a name="idm34440"></a><h2>Description</h2>
+<a name="idm34904"></a><h2>Description</h2>
 <p>Returns a parser equivalent to <code class="computeroutput">lit(c) | rhs</code>. </p>
 </div>
 </div>
@@ -38,7 +38,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="operator_idm22277.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="operator_idm22304.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="operator_idm22626.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="operator_idm22653.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/operator_idm22304.html b/doc/html/boost/parser/operator_idm22653.html
similarity index 85%
rename from doc/html/boost/parser/operator_idm22304.html
rename to doc/html/boost/parser/operator_idm22653.html
index 7cc0ea52..f16f0fd7 100644
--- a/doc/html/boost/parser/operator_idm22304.html
+++ b/doc/html/boost/parser/operator_idm22653.html
@@ -6,16 +6,16 @@
 <meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
 <link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="operator_idm22292.html" title="Function template operator|">
-<link rel="next" href="operator_idm22316.html" title="Function template operator|">
+<link rel="prev" href="operator_idm22641.html" title="Function template operator|">
+<link rel="next" href="operator_idm22665.html" title="Function template operator|">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="operator_idm22292.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="operator_idm22316.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="operator_idm22641.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="operator_idm22665.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
-<a name="boost.parser.operator_idm22304"></a><div class="titlepage"></div>
+<a name="boost.parser.operator_idm22653"></a><div class="titlepage"></div>
 <div class="refnamediv">
 <h2><span class="refentrytitle">Function template operator|</span></h2>
 <p>boost::parser::operator|</p>
@@ -27,7 +27,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
   <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="special">|</span><span class="special">(</span><span class="keyword">char32_t</span> c<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm34472"></a><h2>Description</h2>
+<a name="idm34936"></a><h2>Description</h2>
 <p>Returns a parser equivalent to <code class="computeroutput">lit(c) | rhs</code>. </p>
 </div>
 </div>
@@ -38,7 +38,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="operator_idm22292.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="operator_idm22316.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="operator_idm22641.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="operator_idm22665.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/operator_idm22316.html b/doc/html/boost/parser/operator_idm22665.html
similarity index 87%
rename from doc/html/boost/parser/operator_idm22316.html
rename to doc/html/boost/parser/operator_idm22665.html
index bf652c1e..b244c97b 100644
--- a/doc/html/boost/parser/operator_idm22316.html
+++ b/doc/html/boost/parser/operator_idm22665.html
@@ -6,16 +6,16 @@
 <meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
 <link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="operator_idm22304.html" title="Function template operator|">
-<link rel="next" href="operator-_idm22331.html" title="Function template operator-">
+<link rel="prev" href="operator_idm22653.html" title="Function template operator|">
+<link rel="next" href="operator-_idm22680.html" title="Function template operator-">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="operator_idm22304.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="operator-_idm22331.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="operator_idm22653.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="operator-_idm22680.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
-<a name="boost.parser.operator_idm22316"></a><div class="titlepage"></div>
+<a name="boost.parser.operator_idm22665"></a><div class="titlepage"></div>
 <div class="refnamediv">
 <h2><span class="refentrytitle">Function template operator|</span></h2>
 <p>boost::parser::operator|</p>
@@ -28,7 +28,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
          <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
   <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="keyword">operator</span><span class="special">|</span><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span> r<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm34520"></a><h2>Description</h2>
+<a name="idm34984"></a><h2>Description</h2>
 <p>Returns a parser equivalent to <code class="computeroutput">lit(str) | rhs</code>. </p>
 </div>
 </div>
@@ -39,7 +39,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="operator_idm22304.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="operator-_idm22331.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="operator_idm22653.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="operator-_idm22680.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/opt_parser.html b/doc/html/boost/parser/opt_parser.html
index 0afd8ece..730df504 100644
--- a/doc/html/boost/parser/opt_parser.html
+++ b/doc/html/boost/parser/opt_parser.html
@@ -26,14 +26,14 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
 <span class="keyword">struct</span> <a class="link" href="opt_parser.html" title="Struct template opt_parser">opt_parser</a> <span class="special">{</span>
 
-  <span class="comment">// <a class="link" href="opt_parser.html#idm19911-bb">public member functions</a></span>
+  <span class="comment">// <a class="link" href="opt_parser.html#idm20195-bb">public member functions</a></span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-    <span class="keyword">auto</span> <a class="link" href="opt_parser.html#idm19912-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">auto</span> <a class="link" href="opt_parser.html#idm20196-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="opt_parser.html#idm19936-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">void</span> <a class="link" href="opt_parser.html#idm20220-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">,</span> 
               <span class="identifier">Attribute</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
 
@@ -41,20 +41,20 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
   <span class="identifier">Parser</span> <span class="identifier">parser_</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm27053"></a><h2>Description</h2>
+<a name="idm27376"></a><h2>Description</h2>
 <p>Repeats the application of another parser of type <code class="computeroutput">Parser</code>, <code class="computeroutput">[0, 1]</code> times. The parse always succeeds. The attribute produced is a <code class="computeroutput">std::optional&lt;T&gt;</code>, where <code class="computeroutput">T</code> is the type of attribute produced by <code class="computeroutput">Parser</code>. </p>
 <div class="refsect2">
-<a name="idm27061"></a><h3>
-<a name="idm19911-bb"></a><code class="computeroutput">opt_parser</code> public member functions</h3>
+<a name="idm27384"></a><h3>
+<a name="idm20195-bb"></a><code class="computeroutput">opt_parser</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-  <span class="keyword">auto</span> <a name="idm19912-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="keyword">auto</span> <a name="idm20196-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm19936-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="keyword">void</span> <a name="idm20220-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">,</span> <span class="identifier">Attribute</span> <span class="special">&amp;</span> retval<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 </ol></div>
diff --git a/doc/html/boost/parser/or_parser.html b/doc/html/boost/parser/or_parser.html
index 6dada599..6d6ba151 100644
--- a/doc/html/boost/parser/or_parser.html
+++ b/doc/html/boost/parser/or_parser.html
@@ -26,16 +26,16 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ParserTuple<span class="special">&gt;</span> 
 <span class="keyword">struct</span> <a class="link" href="or_parser.html" title="Struct template or_parser">or_parser</a> <span class="special">{</span>
   <span class="comment">// <a class="link" href="or_parser.html#boost.parser.or_parserconstruct-copy-destruct">construct/copy/destruct</a></span>
-  <a class="link" href="or_parser.html#idm20025-bb"><span class="identifier">or_parser</span></a><span class="special">(</span><span class="identifier">ParserTuple</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="or_parser.html#idm20309-bb"><span class="identifier">or_parser</span></a><span class="special">(</span><span class="identifier">ParserTuple</span><span class="special">)</span><span class="special">;</span>
 
-  <span class="comment">// <a class="link" href="or_parser.html#idm19973-bb">public member functions</a></span>
+  <span class="comment">// <a class="link" href="or_parser.html#idm20257-bb">public member functions</a></span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-    <span class="keyword">auto</span> <a class="link" href="or_parser.html#idm19974-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">auto</span> <a class="link" href="or_parser.html#idm20258-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="or_parser.html#idm19998-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">void</span> <a class="link" href="or_parser.html#idm20282-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">,</span> 
               <span class="identifier">Attribute</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
 
@@ -43,27 +43,27 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
   <span class="identifier">ParserTuple</span> <span class="identifier">parsers_</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm27292"></a><h2>Description</h2>
+<a name="idm27615"></a><h2>Description</h2>
 <p>Applies each parser in <code class="computeroutput">ParserTuple</code>, in order, stopping after the application of the first one that succeeds. The parse succeeds iff one of the sub-parsers succeeds. The attribute produced is a <code class="computeroutput">std::variant</code> over the types of attribute produced by the parsers in <code class="computeroutput">ParserTuple</code>. </p>
 <div class="refsect2">
-<a name="idm27298"></a><h3>
+<a name="idm27621"></a><h3>
 <a name="boost.parser.or_parserconstruct-copy-destruct"></a><code class="computeroutput">or_parser</code> 
         public
        construct/copy/destruct</h3>
-<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><a name="idm20025-bb"></a><span class="identifier">or_parser</span><span class="special">(</span><span class="identifier">ParserTuple</span> parsers<span class="special">)</span><span class="special">;</span></pre></li></ol></div>
+<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><a name="idm20309-bb"></a><span class="identifier">or_parser</span><span class="special">(</span><span class="identifier">ParserTuple</span> parsers<span class="special">)</span><span class="special">;</span></pre></li></ol></div>
 </div>
 <div class="refsect2">
-<a name="idm27312"></a><h3>
-<a name="idm19973-bb"></a><code class="computeroutput">or_parser</code> public member functions</h3>
+<a name="idm27635"></a><h3>
+<a name="idm20257-bb"></a><code class="computeroutput">or_parser</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-  <span class="keyword">auto</span> <a name="idm19974-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="keyword">auto</span> <a name="idm20258-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm19998-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="keyword">void</span> <a name="idm20282-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">,</span> <span class="identifier">Attribute</span> <span class="special">&amp;</span> retval<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 </ol></div>
diff --git a/doc/html/boost/parser/parse_error.html b/doc/html/boost/parser/parse_error.html
index eb1012d8..b9bedf03 100644
--- a/doc/html/boost/parser/parse_error.html
+++ b/doc/html/boost/parser/parse_error.html
@@ -26,20 +26,20 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">&gt;</span> 
 <span class="keyword">struct</span> <a class="link" href="parse_error.html" title="Struct template parse_error">parse_error</a> <span class="special">:</span> <span class="keyword">public</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">runtime_error</span> <span class="special">{</span>
   <span class="comment">// <a class="link" href="parse_error.html#boost.parser.parse_errorconstruct-copy-destruct">construct/copy/destruct</a></span>
-  <a class="link" href="parse_error.html#idm18484-bb"><span class="identifier">parse_error</span></a><span class="special">(</span><span class="identifier">Iter</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="parse_error.html#idm18754-bb"><span class="identifier">parse_error</span></a><span class="special">(</span><span class="identifier">Iter</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 
   <span class="comment">// public data members</span>
   <span class="identifier">Iter</span> <span class="identifier">iter</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm18510"></a><h2>Description</h2>
+<a name="idm18736"></a><h2>Description</h2>
 <p>The exception thrown when a parse error is encountered, consisting of an iterator to the point of failure, and the name of the failed parser or rule in <code class="computeroutput">what()</code>. </p>
 <div class="refsect2">
-<a name="idm18514"></a><h3>
+<a name="idm18740"></a><h3>
 <a name="boost.parser.parse_errorconstruct-copy-destruct"></a><code class="computeroutput">parse_error</code> 
         public
        construct/copy/destruct</h3>
-<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><a name="idm18484-bb"></a><span class="identifier">parse_error</span><span class="special">(</span><span class="identifier">Iter</span> it<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="keyword">const</span> <span class="special">&amp;</span> msg<span class="special">)</span><span class="special">;</span></pre></li></ol></div>
+<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><a name="idm18754-bb"></a><span class="identifier">parse_error</span><span class="special">(</span><span class="identifier">Iter</span> it<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="keyword">const</span> <span class="special">&amp;</span> msg<span class="special">)</span><span class="special">;</span></pre></li></ol></div>
 </div>
 </div>
 </div>
diff --git a/doc/html/boost/parser/parse_idm22442.html b/doc/html/boost/parser/parse_idm22442.html
deleted file mode 100644
index 9d3dc896..00000000
--- a/doc/html/boost/parser/parse_idm22442.html
+++ /dev/null
@@ -1,48 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template parse</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="prefix_parse_idm22411.html" title="Function template prefix_parse">
-<link rel="next" href="prefix_parse_idm22471.html" title="Function template prefix_parse">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="prefix_parse_idm22411.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="prefix_parse_idm22471.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.parse_idm22442"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template parse</span></h2>
-<p>boost::parser::parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> Attr<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">parse</span><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span> r<span class="special">,</span> 
-             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-             <span class="identifier">Attr</span> <span class="special">&amp;</span> attr<span class="special">,</span> <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34899"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">r</code> using <code class="computeroutput">parser</code>, and returns whether the parse was successful. The entire input range <code class="computeroutput">r</code> must be consumed for the parse to be considered successful. On success, <code class="computeroutput">attr</code> will be assigned the value of the attribute produced by <code class="computeroutput">parser</code>. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="prefix_parse_idm22411.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="prefix_parse_idm22471.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/parse_idm22444.html b/doc/html/boost/parser/parse_idm22444.html
deleted file mode 100644
index 26c39d4d..00000000
--- a/doc/html/boost/parser/parse_idm22444.html
+++ /dev/null
@@ -1,48 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template parse</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="prefix_parse_idm22413.html" title="Function template prefix_parse">
-<link rel="next" href="prefix_parse_idm22473.html" title="Function template prefix_parse">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="prefix_parse_idm22413.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="prefix_parse_idm22473.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.parse_idm22444"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template parse</span></h2>
-<p>boost::parser::parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> Attr<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">parse</span><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span> r<span class="special">,</span> 
-             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-             <span class="identifier">Attr</span> <span class="special">&amp;</span> attr<span class="special">,</span> <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34901"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">r</code> using <code class="computeroutput">parser</code>, and returns whether the parse was successful. The entire input range <code class="computeroutput">r</code> must be consumed for the parse to be considered successful. On success, <code class="computeroutput">attr</code> will be assigned the value of the attribute produced by <code class="computeroutput">parser</code>. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="prefix_parse_idm22413.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="prefix_parse_idm22473.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/parse_idm22445.html b/doc/html/boost/parser/parse_idm22445.html
deleted file mode 100644
index a30ab511..00000000
--- a/doc/html/boost/parser/parse_idm22445.html
+++ /dev/null
@@ -1,48 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template parse</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="prefix_parse_idm22414.html" title="Function template prefix_parse">
-<link rel="next" href="prefix_parse_idm22474.html" title="Function template prefix_parse">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="prefix_parse_idm22414.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="prefix_parse_idm22474.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.parse_idm22445"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template parse</span></h2>
-<p>boost::parser::parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> Attr<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">parse</span><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span> r<span class="special">,</span> 
-             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-             <span class="identifier">Attr</span> <span class="special">&amp;</span> attr<span class="special">,</span> <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34902"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">r</code> using <code class="computeroutput">parser</code>, and returns whether the parse was successful. The entire input range <code class="computeroutput">r</code> must be consumed for the parse to be considered successful. On success, <code class="computeroutput">attr</code> will be assigned the value of the attribute produced by <code class="computeroutput">parser</code>. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="prefix_parse_idm22414.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="prefix_parse_idm22474.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/parse_idm22446.html b/doc/html/boost/parser/parse_idm22446.html
deleted file mode 100644
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+++ /dev/null
@@ -1,48 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template parse</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
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-</div>
-<div class="refentry">
-<a name="boost.parser.parse_idm22446"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template parse</span></h2>
-<p>boost::parser::parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> Attr<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">parse</span><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span> r<span class="special">,</span> 
-             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-             <span class="identifier">Attr</span> <span class="special">&amp;</span> attr<span class="special">,</span> <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34902"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">r</code> using <code class="computeroutput">parser</code>, and returns whether the parse was successful. The entire input range <code class="computeroutput">r</code> must be consumed for the parse to be considered successful. On success, <code class="computeroutput">attr</code> will be assigned the value of the attribute produced by <code class="computeroutput">parser</code>. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="prefix_parse_idm22415.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="prefix_parse_idm22475.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/parse_idm22462.html b/doc/html/boost/parser/parse_idm22462.html
deleted file mode 100644
index d95fca34..00000000
--- a/doc/html/boost/parser/parse_idm22462.html
+++ /dev/null
@@ -1,48 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template parse</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
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-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
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-<a accesskey="p" href="prefix_parse_idm22431.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="prefix_parse_idm22491.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.parse_idm22462"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template parse</span></h2>
-<p>boost::parser::parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> Attr<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">parse</span><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span> r<span class="special">,</span> 
-             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-             <span class="identifier">Attr</span> <span class="special">&amp;</span> attr<span class="special">,</span> <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34918"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">r</code> using <code class="computeroutput">parser</code>, and returns whether the parse was successful. The entire input range <code class="computeroutput">r</code> must be consumed for the parse to be considered successful. On success, <code class="computeroutput">attr</code> will be assigned the value of the attribute produced by <code class="computeroutput">parser</code>. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="prefix_parse_idm22431.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="prefix_parse_idm22491.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/parse_idm22500.html b/doc/html/boost/parser/parse_idm22500.html
deleted file mode 100644
index 88931be1..00000000
--- a/doc/html/boost/parser/parse_idm22500.html
+++ /dev/null
@@ -1,48 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template parse</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
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-<a accesskey="p" href="prefix_parse_idm22471.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="prefix_parse_idm22527.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.parse_idm22500"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template parse</span></h2>
-<p>boost::parser::parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">auto</span> <span class="identifier">parse</span><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span> r<span class="special">,</span> 
-             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-             <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35049"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">r</code> using <code class="computeroutput">parser</code>. Returns a <code class="computeroutput">std::optional</code> containing the attribute produced by <code class="computeroutput">parser</code> on parse success, and <code class="computeroutput">std::nullopt</code> on parse failure. The entire input range <code class="computeroutput">r</code> must be consumed for the parse to be considered successful. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="prefix_parse_idm22471.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="prefix_parse_idm22527.html"><img src="../../images/next.png" alt="Next"></a>
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-</body>
-</html>
diff --git a/doc/html/boost/parser/parse_idm22502.html b/doc/html/boost/parser/parse_idm22502.html
deleted file mode 100644
index cf8207b3..00000000
--- a/doc/html/boost/parser/parse_idm22502.html
+++ /dev/null
@@ -1,48 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template parse</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
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-<link rel="prev" href="prefix_parse_idm22473.html" title="Function template prefix_parse">
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-</head>
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-<a accesskey="p" href="prefix_parse_idm22473.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="prefix_parse_idm22529.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.parse_idm22502"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template parse</span></h2>
-<p>boost::parser::parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">auto</span> <span class="identifier">parse</span><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span> r<span class="special">,</span> 
-             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-             <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35051"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">r</code> using <code class="computeroutput">parser</code>. Returns a <code class="computeroutput">std::optional</code> containing the attribute produced by <code class="computeroutput">parser</code> on parse success, and <code class="computeroutput">std::nullopt</code> on parse failure. The entire input range <code class="computeroutput">r</code> must be consumed for the parse to be considered successful. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="prefix_parse_idm22473.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="prefix_parse_idm22529.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
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-<html>
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-</div>
-<div class="refentry">
-<a name="boost.parser.parse_idm22503"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template parse</span></h2>
-<p>boost::parser::parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">auto</span> <span class="identifier">parse</span><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span> r<span class="special">,</span> 
-             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-             <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35052"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">r</code> using <code class="computeroutput">parser</code>. Returns a <code class="computeroutput">std::optional</code> containing the attribute produced by <code class="computeroutput">parser</code> on parse success, and <code class="computeroutput">std::nullopt</code> on parse failure. The entire input range <code class="computeroutput">r</code> must be consumed for the parse to be considered successful. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
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diff --git a/doc/html/boost/parser/parse_idm22504.html b/doc/html/boost/parser/parse_idm22504.html
deleted file mode 100644
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--- a/doc/html/boost/parser/parse_idm22504.html
+++ /dev/null
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-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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-</div>
-<div class="refentry">
-<a name="boost.parser.parse_idm22504"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template parse</span></h2>
-<p>boost::parser::parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">auto</span> <span class="identifier">parse</span><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span> r<span class="special">,</span> 
-             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-             <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35052"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">r</code> using <code class="computeroutput">parser</code>. Returns a <code class="computeroutput">std::optional</code> containing the attribute produced by <code class="computeroutput">parser</code> on parse success, and <code class="computeroutput">std::nullopt</code> on parse failure. The entire input range <code class="computeroutput">r</code> must be consumed for the parse to be considered successful. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
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diff --git a/doc/html/boost/parser/parse_idm22520.html b/doc/html/boost/parser/parse_idm22520.html
deleted file mode 100644
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+++ /dev/null
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-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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-</div>
-<div class="refentry">
-<a name="boost.parser.parse_idm22520"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template parse</span></h2>
-<p>boost::parser::parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">auto</span> <span class="identifier">parse</span><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span> r<span class="special">,</span> 
-             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-             <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35068"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">r</code> using <code class="computeroutput">parser</code>. Returns a <code class="computeroutput">std::optional</code> containing the attribute produced by <code class="computeroutput">parser</code> on parse success, and <code class="computeroutput">std::nullopt</code> on parse failure. The entire input range <code class="computeroutput">r</code> must be consumed for the parse to be considered successful. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="prefix_parse_idm22491.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="prefix_parse_idm22547.html"><img src="../../images/next.png" alt="Next"></a>
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diff --git a/doc/html/boost/parser/parse_idm22563.html b/doc/html/boost/parser/parse_idm22563.html
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-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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-</div>
-<div class="refentry">
-<a name="boost.parser.parse_idm22563"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template parse</span></h2>
-<p>boost::parser::parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attr<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">parse</span><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span> r<span class="special">,</span> 
-             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> <span class="identifier">Attr</span> <span class="special">&amp;</span> attr<span class="special">,</span> 
-             <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35228"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">r</code> using <code class="computeroutput">parser</code>, skipping all input recognized by <code class="computeroutput">skip</code> between the application of any two parsers, and returns whether the parse was successful. The entire input range <code class="computeroutput">r</code> must be consumed for the parse to be considered successful. On success, <code class="computeroutput">attr</code> will be assigned the value of the attribute produced by <code class="computeroutput">parser</code>. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="prefix_parse_idm22527.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="prefix_parse_idm22597.html"><img src="../../images/next.png" alt="Next"></a>
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diff --git a/doc/html/boost/parser/parse_idm22565.html b/doc/html/boost/parser/parse_idm22565.html
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-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template parse</title>
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-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
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-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template parse</span></h2>
-<p>boost::parser::parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attr<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">parse</span><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span> r<span class="special">,</span> 
-             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> <span class="identifier">Attr</span> <span class="special">&amp;</span> attr<span class="special">,</span> 
-             <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35230"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">r</code> using <code class="computeroutput">parser</code>, skipping all input recognized by <code class="computeroutput">skip</code> between the application of any two parsers, and returns whether the parse was successful. The entire input range <code class="computeroutput">r</code> must be consumed for the parse to be considered successful. On success, <code class="computeroutput">attr</code> will be assigned the value of the attribute produced by <code class="computeroutput">parser</code>. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="prefix_parse_idm22529.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="prefix_parse_idm22599.html"><img src="../../images/next.png" alt="Next"></a>
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diff --git a/doc/html/boost/parser/parse_idm22566.html b/doc/html/boost/parser/parse_idm22566.html
deleted file mode 100644
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--- a/doc/html/boost/parser/parse_idm22566.html
+++ /dev/null
@@ -1,49 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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-</div>
-<div class="refentry">
-<a name="boost.parser.parse_idm22566"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template parse</span></h2>
-<p>boost::parser::parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attr<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">parse</span><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span> r<span class="special">,</span> 
-             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> <span class="identifier">Attr</span> <span class="special">&amp;</span> attr<span class="special">,</span> 
-             <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35231"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">r</code> using <code class="computeroutput">parser</code>, skipping all input recognized by <code class="computeroutput">skip</code> between the application of any two parsers, and returns whether the parse was successful. The entire input range <code class="computeroutput">r</code> must be consumed for the parse to be considered successful. On success, <code class="computeroutput">attr</code> will be assigned the value of the attribute produced by <code class="computeroutput">parser</code>. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="prefix_parse_idm22530.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="prefix_parse_idm22600.html"><img src="../../images/next.png" alt="Next"></a>
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diff --git a/doc/html/boost/parser/parse_idm22567.html b/doc/html/boost/parser/parse_idm22567.html
deleted file mode 100644
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+++ /dev/null
@@ -1,49 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template parse</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
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-</div>
-<div class="refentry">
-<a name="boost.parser.parse_idm22567"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template parse</span></h2>
-<p>boost::parser::parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attr<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">parse</span><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span> r<span class="special">,</span> 
-             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> <span class="identifier">Attr</span> <span class="special">&amp;</span> attr<span class="special">,</span> 
-             <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35231"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">r</code> using <code class="computeroutput">parser</code>, skipping all input recognized by <code class="computeroutput">skip</code> between the application of any two parsers, and returns whether the parse was successful. The entire input range <code class="computeroutput">r</code> must be consumed for the parse to be considered successful. On success, <code class="computeroutput">attr</code> will be assigned the value of the attribute produced by <code class="computeroutput">parser</code>. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="prefix_parse_idm22531.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="prefix_parse_idm22601.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/parse_idm22583.html b/doc/html/boost/parser/parse_idm22583.html
deleted file mode 100644
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--- a/doc/html/boost/parser/parse_idm22583.html
+++ /dev/null
@@ -1,49 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template parse</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
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-</div>
-<div class="refentry">
-<a name="boost.parser.parse_idm22583"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template parse</span></h2>
-<p>boost::parser::parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attr<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">parse</span><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span> r<span class="special">,</span> 
-             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> <span class="identifier">Attr</span> <span class="special">&amp;</span> attr<span class="special">,</span> 
-             <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35247"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">r</code> using <code class="computeroutput">parser</code>, skipping all input recognized by <code class="computeroutput">skip</code> between the application of any two parsers, and returns whether the parse was successful. The entire input range <code class="computeroutput">r</code> must be consumed for the parse to be considered successful. On success, <code class="computeroutput">attr</code> will be assigned the value of the attribute produced by <code class="computeroutput">parser</code>. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="prefix_parse_idm22547.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="prefix_parse_idm22617.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/parse_idm22631.html b/doc/html/boost/parser/parse_idm22631.html
deleted file mode 100644
index 7799edb2..00000000
--- a/doc/html/boost/parser/parse_idm22631.html
+++ /dev/null
@@ -1,49 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template parse</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
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-<link rel="prev" href="prefix_parse_idm22597.html" title="Function template prefix_parse">
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-<meta name="viewport" content="width=device-width, initial-scale=1">
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-<a accesskey="p" href="prefix_parse_idm22597.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_prefix_p_idm22663.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.parse_idm22631"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template parse</span></h2>
-<p>boost::parser::parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">auto</span> <span class="identifier">parse</span><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span> r<span class="special">,</span> 
-             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
-             <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35398"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">r</code> using <code class="computeroutput">parser</code>, skipping all input recognized by <code class="computeroutput">skip</code> between the application of any two parsers. Returns a <code class="computeroutput">std::optional</code> containing the attribute produced by <code class="computeroutput">parser</code> on parse success, and <code class="computeroutput">std::nullopt</code> on parse failure. The entire input range <code class="computeroutput">r</code> must be consumed for the parse to be considered successful. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="prefix_parse_idm22597.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_prefix_p_idm22663.html"><img src="../../images/next.png" alt="Next"></a>
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diff --git a/doc/html/boost/parser/parse_idm22633.html b/doc/html/boost/parser/parse_idm22633.html
deleted file mode 100644
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--- a/doc/html/boost/parser/parse_idm22633.html
+++ /dev/null
@@ -1,49 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template parse</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
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-</div>
-<div class="refentry">
-<a name="boost.parser.parse_idm22633"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template parse</span></h2>
-<p>boost::parser::parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">auto</span> <span class="identifier">parse</span><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span> r<span class="special">,</span> 
-             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
-             <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35400"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">r</code> using <code class="computeroutput">parser</code>, skipping all input recognized by <code class="computeroutput">skip</code> between the application of any two parsers. Returns a <code class="computeroutput">std::optional</code> containing the attribute produced by <code class="computeroutput">parser</code> on parse success, and <code class="computeroutput">std::nullopt</code> on parse failure. The entire input range <code class="computeroutput">r</code> must be consumed for the parse to be considered successful. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="prefix_parse_idm22599.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_prefix_p_idm22665.html"><img src="../../images/next.png" alt="Next"></a>
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diff --git a/doc/html/boost/parser/parse_idm22634.html b/doc/html/boost/parser/parse_idm22634.html
deleted file mode 100644
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+++ /dev/null
@@ -1,49 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template parse</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
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-<link rel="prev" href="prefix_parse_idm22600.html" title="Function template prefix_parse">
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-</div>
-<div class="refentry">
-<a name="boost.parser.parse_idm22634"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template parse</span></h2>
-<p>boost::parser::parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">auto</span> <span class="identifier">parse</span><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span> r<span class="special">,</span> 
-             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
-             <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35401"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">r</code> using <code class="computeroutput">parser</code>, skipping all input recognized by <code class="computeroutput">skip</code> between the application of any two parsers. Returns a <code class="computeroutput">std::optional</code> containing the attribute produced by <code class="computeroutput">parser</code> on parse success, and <code class="computeroutput">std::nullopt</code> on parse failure. The entire input range <code class="computeroutput">r</code> must be consumed for the parse to be considered successful. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="prefix_parse_idm22600.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_prefix_p_idm22666.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/parse_idm22635.html b/doc/html/boost/parser/parse_idm22635.html
deleted file mode 100644
index 506a31bb..00000000
--- a/doc/html/boost/parser/parse_idm22635.html
+++ /dev/null
@@ -1,49 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template parse</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
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-<link rel="prev" href="prefix_parse_idm22601.html" title="Function template prefix_parse">
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-</div>
-<div class="refentry">
-<a name="boost.parser.parse_idm22635"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template parse</span></h2>
-<p>boost::parser::parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">auto</span> <span class="identifier">parse</span><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span> r<span class="special">,</span> 
-             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
-             <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35401"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">r</code> using <code class="computeroutput">parser</code>, skipping all input recognized by <code class="computeroutput">skip</code> between the application of any two parsers. Returns a <code class="computeroutput">std::optional</code> containing the attribute produced by <code class="computeroutput">parser</code> on parse success, and <code class="computeroutput">std::nullopt</code> on parse failure. The entire input range <code class="computeroutput">r</code> must be consumed for the parse to be considered successful. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="prefix_parse_idm22601.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_prefix_p_idm22667.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/parse_idm22651.html b/doc/html/boost/parser/parse_idm22651.html
deleted file mode 100644
index 8891a809..00000000
--- a/doc/html/boost/parser/parse_idm22651.html
+++ /dev/null
@@ -1,49 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template parse</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
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-<link rel="prev" href="prefix_parse_idm22617.html" title="Function template prefix_parse">
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-<div class="refentry">
-<a name="boost.parser.parse_idm22651"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template parse</span></h2>
-<p>boost::parser::parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">auto</span> <span class="identifier">parse</span><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span> r<span class="special">,</span> 
-             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-             <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
-             <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35417"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">r</code> using <code class="computeroutput">parser</code>, skipping all input recognized by <code class="computeroutput">skip</code> between the application of any two parsers. Returns a <code class="computeroutput">std::optional</code> containing the attribute produced by <code class="computeroutput">parser</code> on parse success, and <code class="computeroutput">std::nullopt</code> on parse failure. The entire input range <code class="computeroutput">r</code> must be consumed for the parse to be considered successful. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="prefix_parse_idm22617.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_prefix_p_idm22683.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/parse_idm22440.html b/doc/html/boost/parser/parse_idm22789.html
similarity index 90%
rename from doc/html/boost/parser/parse_idm22440.html
rename to doc/html/boost/parser/parse_idm22789.html
index 56ba51d7..2c170178 100644
--- a/doc/html/boost/parser/parse_idm22440.html
+++ b/doc/html/boost/parser/parse_idm22789.html
@@ -6,16 +6,16 @@
 <meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
 <link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="prefix_parse_idm22409.html" title="Function template prefix_parse">
-<link rel="next" href="prefix_parse_idm22469.html" title="Function template prefix_parse">
+<link rel="prev" href="prefix_parse_idm22758.html" title="Function template prefix_parse">
+<link rel="next" href="prefix_parse_idm22818.html" title="Function template prefix_parse">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="prefix_parse_idm22409.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="prefix_parse_idm22469.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="prefix_parse_idm22758.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="prefix_parse_idm22818.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
-<a name="boost.parser.parse_idm22440"></a><div class="titlepage"></div>
+<a name="boost.parser.parse_idm22789"></a><div class="titlepage"></div>
 <div class="refnamediv">
 <h2><span class="refentrytitle">Function template parse</span></h2>
 <p>boost::parser::parse</p>
@@ -31,7 +31,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
              <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
              <span class="identifier">Attr</span> <span class="special">&amp;</span> attr<span class="special">,</span> <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm34897"></a><h2>Description</h2>
+<a name="idm35361"></a><h2>Description</h2>
 <p>Parses <code class="computeroutput">r</code> using <code class="computeroutput">parser</code>, and returns whether the parse was successful. The entire input range <code class="computeroutput">r</code> must be consumed for the parse to be considered successful. On success, <code class="computeroutput">attr</code> will be assigned the value of the attribute produced by <code class="computeroutput">parser</code>. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
 </div>
 </div>
@@ -42,7 +42,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="prefix_parse_idm22409.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="prefix_parse_idm22469.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="prefix_parse_idm22758.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="prefix_parse_idm22818.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/parse_idm22498.html b/doc/html/boost/parser/parse_idm22847.html
similarity index 90%
rename from doc/html/boost/parser/parse_idm22498.html
rename to doc/html/boost/parser/parse_idm22847.html
index 23924f02..8c66dee7 100644
--- a/doc/html/boost/parser/parse_idm22498.html
+++ b/doc/html/boost/parser/parse_idm22847.html
@@ -6,16 +6,16 @@
 <meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
 <link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="prefix_parse_idm22469.html" title="Function template prefix_parse">
-<link rel="next" href="prefix_parse_idm22525.html" title="Function template prefix_parse">
+<link rel="prev" href="prefix_parse_idm22818.html" title="Function template prefix_parse">
+<link rel="next" href="prefix_parse_idm22874.html" title="Function template prefix_parse">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="prefix_parse_idm22469.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="prefix_parse_idm22525.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="prefix_parse_idm22818.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="prefix_parse_idm22874.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
-<a name="boost.parser.parse_idm22498"></a><div class="titlepage"></div>
+<a name="boost.parser.parse_idm22847"></a><div class="titlepage"></div>
 <div class="refnamediv">
 <h2><span class="refentrytitle">Function template parse</span></h2>
 <p>boost::parser::parse</p>
@@ -31,7 +31,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
              <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
              <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm35047"></a><h2>Description</h2>
+<a name="idm35511"></a><h2>Description</h2>
 <p>Parses <code class="computeroutput">r</code> using <code class="computeroutput">parser</code>. Returns a <code class="computeroutput">std::optional</code> containing the attribute produced by <code class="computeroutput">parser</code> on parse success, and <code class="computeroutput">std::nullopt</code> on parse failure. The entire input range <code class="computeroutput">r</code> must be consumed for the parse to be considered successful. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
 </div>
 </div>
@@ -42,7 +42,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="prefix_parse_idm22469.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="prefix_parse_idm22525.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="prefix_parse_idm22818.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="prefix_parse_idm22874.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/parse_idm22561.html b/doc/html/boost/parser/parse_idm22910.html
similarity index 91%
rename from doc/html/boost/parser/parse_idm22561.html
rename to doc/html/boost/parser/parse_idm22910.html
index b87f7b0e..9530f6ab 100644
--- a/doc/html/boost/parser/parse_idm22561.html
+++ b/doc/html/boost/parser/parse_idm22910.html
@@ -6,16 +6,16 @@
 <meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
 <link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="prefix_parse_idm22525.html" title="Function template prefix_parse">
-<link rel="next" href="prefix_parse_idm22595.html" title="Function template prefix_parse">
+<link rel="prev" href="prefix_parse_idm22874.html" title="Function template prefix_parse">
+<link rel="next" href="prefix_parse_idm22944.html" title="Function template prefix_parse">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="prefix_parse_idm22525.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="prefix_parse_idm22595.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="prefix_parse_idm22874.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="prefix_parse_idm22944.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
-<a name="boost.parser.parse_idm22561"></a><div class="titlepage"></div>
+<a name="boost.parser.parse_idm22910"></a><div class="titlepage"></div>
 <div class="refnamediv">
 <h2><span class="refentrytitle">Function template parse</span></h2>
 <p>boost::parser::parse</p>
@@ -32,7 +32,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
              <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> <span class="identifier">Attr</span> <span class="special">&amp;</span> attr<span class="special">,</span> 
              <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm35226"></a><h2>Description</h2>
+<a name="idm35690"></a><h2>Description</h2>
 <p>Parses <code class="computeroutput">r</code> using <code class="computeroutput">parser</code>, skipping all input recognized by <code class="computeroutput">skip</code> between the application of any two parsers, and returns whether the parse was successful. The entire input range <code class="computeroutput">r</code> must be consumed for the parse to be considered successful. On success, <code class="computeroutput">attr</code> will be assigned the value of the attribute produced by <code class="computeroutput">parser</code>. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
 </div>
 </div>
@@ -43,7 +43,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="prefix_parse_idm22525.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="prefix_parse_idm22595.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="prefix_parse_idm22874.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="prefix_parse_idm22944.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/parse_idm22629.html b/doc/html/boost/parser/parse_idm22978.html
similarity index 91%
rename from doc/html/boost/parser/parse_idm22629.html
rename to doc/html/boost/parser/parse_idm22978.html
index 8bab64a5..a039cf25 100644
--- a/doc/html/boost/parser/parse_idm22629.html
+++ b/doc/html/boost/parser/parse_idm22978.html
@@ -6,16 +6,16 @@
 <meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
 <link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="prefix_parse_idm22595.html" title="Function template prefix_parse">
-<link rel="next" href="callback_prefix_p_idm22661.html" title="Function template callback_prefix_parse">
+<link rel="prev" href="prefix_parse_idm22944.html" title="Function template prefix_parse">
+<link rel="next" href="callback_prefix_p_idm23010.html" title="Function template callback_prefix_parse">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="prefix_parse_idm22595.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_prefix_p_idm22661.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="prefix_parse_idm22944.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_prefix_p_idm23010.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
-<a name="boost.parser.parse_idm22629"></a><div class="titlepage"></div>
+<a name="boost.parser.parse_idm22978"></a><div class="titlepage"></div>
 <div class="refnamediv">
 <h2><span class="refentrytitle">Function template parse</span></h2>
 <p>boost::parser::parse</p>
@@ -32,7 +32,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
              <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
              <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm35396"></a><h2>Description</h2>
+<a name="idm35860"></a><h2>Description</h2>
 <p>Parses <code class="computeroutput">r</code> using <code class="computeroutput">parser</code>, skipping all input recognized by <code class="computeroutput">skip</code> between the application of any two parsers. Returns a <code class="computeroutput">std::optional</code> containing the attribute produced by <code class="computeroutput">parser</code> on parse success, and <code class="computeroutput">std::nullopt</code> on parse failure. The entire input range <code class="computeroutput">r</code> must be consumed for the parse to be considered successful. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
 </div>
 </div>
@@ -43,7 +43,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="prefix_parse_idm22595.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_prefix_p_idm22661.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="prefix_parse_idm22944.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="callback_prefix_p_idm23010.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/parser_interface.html b/doc/html/boost/parser/parser_interface.html
index c9ecc5cf..5f4cad68 100644
--- a/doc/html/boost/parser/parser_interface.html
+++ b/doc/html/boost/parser/parser_interface.html
@@ -31,196 +31,196 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
   <span class="keyword">typedef</span> <span class="identifier">ErrorHandler</span> <a name="boost.parser.parser_interface.error_handler_type"></a><span class="identifier">error_handler_type</span><span class="special">;</span>
 
   <span class="comment">// <a class="link" href="parser_interface.html#boost.parser.parser_interfaceconstruct-copy-destruct">construct/copy/destruct</a></span>
-  <a class="link" href="parser_interface.html#idm20405-bb"><span class="identifier">parser_interface</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
-  <a class="link" href="parser_interface.html#idm20406-bb"><span class="identifier">parser_interface</span></a><span class="special">(</span><span class="identifier">parser_type</span><span class="special">)</span><span class="special">;</span>
-  <a class="link" href="parser_interface.html#idm20409-bb"><span class="identifier">parser_interface</span></a><span class="special">(</span><span class="identifier">parser_type</span><span class="special">,</span> <span class="identifier">global_state_type</span><span class="special">,</span> <span class="identifier">error_handler_type</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="parser_interface.html#idm20689-bb"><span class="identifier">parser_interface</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="parser_interface.html#idm20690-bb"><span class="identifier">parser_interface</span></a><span class="special">(</span><span class="identifier">parser_type</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="parser_interface.html#idm20693-bb"><span class="identifier">parser_interface</span></a><span class="special">(</span><span class="identifier">parser_type</span><span class="special">,</span> <span class="identifier">global_state_type</span><span class="special">,</span> <span class="identifier">error_handler_type</span><span class="special">)</span><span class="special">;</span>
 
-  <span class="comment">// <a class="link" href="parser_interface.html#idm20045-bb">public member functions</a></span>
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20046-bb"><span class="keyword">operator</span><span class="special">!</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20056-bb"><span class="keyword">operator</span><span class="special">&amp;</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20066-bb"><span class="keyword">operator</span><span class="special">*</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20075-bb"><span class="keyword">operator</span><span class="special">+</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20084-bb"><span class="keyword">operator</span><span class="special">-</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+  <span class="comment">// <a class="link" href="parser_interface.html#idm20329-bb">public member functions</a></span>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20330-bb"><span class="keyword">operator</span><span class="special">!</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20340-bb"><span class="keyword">operator</span><span class="special">&amp;</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20350-bb"><span class="keyword">operator</span><span class="special">*</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20359-bb"><span class="keyword">operator</span><span class="special">+</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20368-bb"><span class="keyword">operator</span><span class="special">-</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ParserType2<span class="special">&gt;</span> 
-    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20093-bb"><span class="keyword">operator</span><span class="special">&gt;&gt;</span></a><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">ParserType2</span> <span class="special">&gt;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20108-bb"><span class="keyword">operator</span><span class="special">&gt;&gt;</span></a><span class="special">(</span><span class="keyword">char</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20120-bb"><span class="keyword">operator</span><span class="special">&gt;&gt;</span></a><span class="special">(</span><span class="keyword">char32_t</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20377-bb"><span class="keyword">operator</span><span class="special">&gt;&gt;</span></a><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">ParserType2</span> <span class="special">&gt;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20392-bb"><span class="keyword">operator</span><span class="special">&gt;&gt;</span></a><span class="special">(</span><span class="keyword">char</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20404-bb"><span class="keyword">operator</span><span class="special">&gt;&gt;</span></a><span class="special">(</span><span class="keyword">char32_t</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> 
            <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20132-bb"><span class="keyword">operator</span><span class="special">&gt;&gt;</span></a><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20416-bb"><span class="keyword">operator</span><span class="special">&gt;&gt;</span></a><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ParserType2<span class="special">&gt;</span> 
-    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20148-bb"><span class="keyword">operator</span><span class="special">&gt;</span></a><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">ParserType2</span> <span class="special">&gt;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20166-bb"><span class="keyword">operator</span><span class="special">&gt;</span></a><span class="special">(</span><span class="keyword">char</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20181-bb"><span class="keyword">operator</span><span class="special">&gt;</span></a><span class="special">(</span><span class="keyword">char32_t</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20432-bb"><span class="keyword">operator</span><span class="special">&gt;</span></a><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">ParserType2</span> <span class="special">&gt;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20450-bb"><span class="keyword">operator</span><span class="special">&gt;</span></a><span class="special">(</span><span class="keyword">char</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20465-bb"><span class="keyword">operator</span><span class="special">&gt;</span></a><span class="special">(</span><span class="keyword">char32_t</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> 
            <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20196-bb"><span class="keyword">operator</span><span class="special">&gt;</span></a><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20480-bb"><span class="keyword">operator</span><span class="special">&gt;</span></a><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ParserType2<span class="special">&gt;</span> 
-    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20215-bb"><span class="keyword">operator</span><span class="special">|</span></a><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">ParserType2</span> <span class="special">&gt;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20230-bb"><span class="keyword">operator</span><span class="special">|</span></a><span class="special">(</span><span class="keyword">char</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20242-bb"><span class="keyword">operator</span><span class="special">|</span></a><span class="special">(</span><span class="keyword">char32_t</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20499-bb"><span class="keyword">operator</span><span class="special">|</span></a><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">ParserType2</span> <span class="special">&gt;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20514-bb"><span class="keyword">operator</span><span class="special">|</span></a><span class="special">(</span><span class="keyword">char</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20526-bb"><span class="keyword">operator</span><span class="special">|</span></a><span class="special">(</span><span class="keyword">char32_t</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> 
            <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20254-bb"><span class="keyword">operator</span><span class="special">|</span></a><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20538-bb"><span class="keyword">operator</span><span class="special">|</span></a><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ParserType2<span class="special">&gt;</span> 
-    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20270-bb"><span class="keyword">operator</span><span class="special">-</span></a><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">ParserType2</span> <span class="special">&gt;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20282-bb"><span class="keyword">operator</span><span class="special">-</span></a><span class="special">(</span><span class="keyword">char</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20291-bb"><span class="keyword">operator</span><span class="special">-</span></a><span class="special">(</span><span class="keyword">char32_t</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20554-bb"><span class="keyword">operator</span><span class="special">-</span></a><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">ParserType2</span> <span class="special">&gt;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20566-bb"><span class="keyword">operator</span><span class="special">-</span></a><span class="special">(</span><span class="keyword">char</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20575-bb"><span class="keyword">operator</span><span class="special">-</span></a><span class="special">(</span><span class="keyword">char32_t</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> 
            <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20300-bb"><span class="keyword">operator</span><span class="special">-</span></a><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20584-bb"><span class="keyword">operator</span><span class="special">-</span></a><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ParserType2<span class="special">&gt;</span> 
-    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20313-bb"><span class="keyword">operator</span><span class="special">%</span></a><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">ParserType2</span> <span class="special">&gt;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20328-bb"><span class="keyword">operator</span><span class="special">%</span></a><span class="special">(</span><span class="keyword">char</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20340-bb"><span class="keyword">operator</span><span class="special">%</span></a><span class="special">(</span><span class="keyword">char32_t</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20597-bb"><span class="keyword">operator</span><span class="special">%</span></a><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">ParserType2</span> <span class="special">&gt;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20612-bb"><span class="keyword">operator</span><span class="special">%</span></a><span class="special">(</span><span class="keyword">char</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20624-bb"><span class="keyword">operator</span><span class="special">%</span></a><span class="special">(</span><span class="keyword">char32_t</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> 
            <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20352-bb"><span class="keyword">operator</span><span class="special">%</span></a><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Action<span class="special">&gt;</span> <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20368-bb"><span class="keyword">operator</span><span class="special">[</span><span class="special">]</span></a><span class="special">(</span><span class="identifier">Action</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20636-bb"><span class="keyword">operator</span><span class="special">%</span></a><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Action<span class="special">&gt;</span> <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20652-bb"><span class="keyword">operator</span><span class="special">[</span><span class="special">]</span></a><span class="special">(</span><span class="identifier">Action</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Arg<span class="special">,</span> <span class="keyword">typename</span><span class="special">...</span> Args<span class="special">&gt;</span> 
-    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20382-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">Arg</span> <span class="special">&amp;&amp;</span><span class="special">,</span> <span class="identifier">Args</span> <span class="special">&amp;&amp;</span><span class="special">...</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="parser_interface.html#idm20666-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">Arg</span> <span class="special">&amp;&amp;</span><span class="special">,</span> <span class="identifier">Args</span> <span class="special">&amp;&amp;</span><span class="special">...</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm27915"></a><h2>Description</h2>
+<a name="idm28238"></a><h2>Description</h2>
 <p>A wrapper for parsers that provides the operations that must be supported by all parsers (e.g. <code class="computeroutput">operator&gt;&gt;()</code>). <code class="computeroutput">GlobalState</code> is an optional state object that can be accessed within semantic actions via a call to <code class="computeroutput">_globals()</code>. This global state object is ignored for all but the topmost parser; the topmost global state object is available in the semantic actions of all nested parsers. <code class="computeroutput">ErrorHandler</code> is the type of the error handler to be used on parse failure. This handler is ignored on all but the topmost parser; the topmost parser's error handler is used for all errors encountered during parsing. </p>
 <div class="refsect2">
-<a name="idm27922"></a><h3>
+<a name="idm28245"></a><h3>
 <a name="boost.parser.parser_interfaceconstruct-copy-destruct"></a><code class="computeroutput">parser_interface</code> 
         public
        construct/copy/destruct</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
-<li class="listitem"><pre class="literallayout"><a name="idm20405-bb"></a><span class="identifier">parser_interface</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><a name="idm20406-bb"></a><span class="identifier">parser_interface</span><span class="special">(</span><span class="identifier">parser_type</span> p<span class="special">)</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><a name="idm20409-bb"></a><span class="identifier">parser_interface</span><span class="special">(</span><span class="identifier">parser_type</span> p<span class="special">,</span> <span class="identifier">global_state_type</span> gs<span class="special">,</span> <span class="identifier">error_handler_type</span> eh<span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a name="idm20689-bb"></a><span class="identifier">parser_interface</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a name="idm20690-bb"></a><span class="identifier">parser_interface</span><span class="special">(</span><span class="identifier">parser_type</span> p<span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a name="idm20693-bb"></a><span class="identifier">parser_interface</span><span class="special">(</span><span class="identifier">parser_type</span> p<span class="special">,</span> <span class="identifier">global_state_type</span> gs<span class="special">,</span> <span class="identifier">error_handler_type</span> eh<span class="special">)</span><span class="special">;</span></pre></li>
 </ol></div>
 </div>
 <div class="refsect2">
-<a name="idm27957"></a><h3>
-<a name="idm20045-bb"></a><code class="computeroutput">parser_interface</code> public member functions</h3>
+<a name="idm28280"></a><h3>
+<a name="idm20329-bb"></a><code class="computeroutput">parser_interface</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
 <li class="listitem">
-<pre class="literallayout"><span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20046-bb"></a><span class="keyword">operator</span><span class="special">!</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+<pre class="literallayout"><span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20330-bb"></a><span class="keyword">operator</span><span class="special">!</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code></code> containing a parser equivalent to an <code class="computeroutput"><code class="computeroutput"><a class="link" href="expect_parser.html" title="Struct template expect_parser">expect_parser</a></code></code> containing <code class="computeroutput">parser_</code>, with <code class="computeroutput">FailOnMatch == true</code>. </p>
 </li>
 <li class="listitem">
-<pre class="literallayout"><span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20056-bb"></a><span class="keyword">operator</span><span class="special">&amp;</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+<pre class="literallayout"><span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20340-bb"></a><span class="keyword">operator</span><span class="special">&amp;</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code></code> containing a parser equivalent to an <code class="computeroutput"><code class="computeroutput"><a class="link" href="expect_parser.html" title="Struct template expect_parser">expect_parser</a></code></code> containing <code class="computeroutput">parser_</code>, with <code class="computeroutput">FailOnMatch == false</code>. </p>
 </li>
 <li class="listitem">
-<pre class="literallayout"><span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20066-bb"></a><span class="keyword">operator</span><span class="special">*</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+<pre class="literallayout"><span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20350-bb"></a><span class="keyword">operator</span><span class="special">*</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code></code> containing a parser equivalent to a <code class="computeroutput"><code class="computeroutput"><a class="link" href="zero_plus_parser.html" title="Struct template zero_plus_parser">zero_plus_parser</a></code></code> containing <code class="computeroutput">parser_</code>. </p>
 </li>
 <li class="listitem">
-<pre class="literallayout"><span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20075-bb"></a><span class="keyword">operator</span><span class="special">+</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+<pre class="literallayout"><span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20359-bb"></a><span class="keyword">operator</span><span class="special">+</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code></code> containing a parser equivalent to a <code class="computeroutput"><code class="computeroutput"><a class="link" href="one_plus_parser.html" title="Struct template one_plus_parser">one_plus_parser</a></code></code> containing <code class="computeroutput">parser_</code>. </p>
 </li>
 <li class="listitem">
-<pre class="literallayout"><span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20084-bb"></a><span class="keyword">operator</span><span class="special">-</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+<pre class="literallayout"><span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20368-bb"></a><span class="keyword">operator</span><span class="special">-</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code></code> containing a parser equivalent to a <code class="computeroutput"><code class="computeroutput"><a class="link" href="opt_parser.html" title="Struct template opt_parser">opt_parser</a></code></code> containing <code class="computeroutput">parser_</code>. </p>
 </li>
 <li class="listitem">
 <pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ParserType2<span class="special">&gt;</span> 
   <span class="keyword">constexpr</span> <span class="keyword">auto</span> 
-  <a name="idm20093-bb"></a><span class="keyword">operator</span><span class="special">&gt;&gt;</span><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">ParserType2</span> <span class="special">&gt;</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+  <a name="idm20377-bb"></a><span class="keyword">operator</span><span class="special">&gt;&gt;</span><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">ParserType2</span> <span class="special">&gt;</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code></code> containing a parser equivalent to a <code class="computeroutput"><code class="computeroutput"><a class="link" href="seq_parser.html" title="Struct template seq_parser">seq_parser</a></code></code> containing <code class="computeroutput">parser_</code> followed by <code class="computeroutput">rhs.parser_</code>. </p>
 </li>
 <li class="listitem">
-<pre class="literallayout"><span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20108-bb"></a><span class="keyword">operator</span><span class="special">&gt;&gt;</span><span class="special">(</span><span class="keyword">char</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+<pre class="literallayout"><span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20392-bb"></a><span class="keyword">operator</span><span class="special">&gt;&gt;</span><span class="special">(</span><span class="keyword">char</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code></code> containing a parser equivalent to a <code class="computeroutput"><code class="computeroutput"><a class="link" href="seq_parser.html" title="Struct template seq_parser">seq_parser</a></code></code> containing <code class="computeroutput">parser_</code> followed by <code class="computeroutput">lit(rhs)</code>. </p>
 </li>
 <li class="listitem">
-<pre class="literallayout"><span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20120-bb"></a><span class="keyword">operator</span><span class="special">&gt;&gt;</span><span class="special">(</span><span class="keyword">char32_t</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+<pre class="literallayout"><span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20404-bb"></a><span class="keyword">operator</span><span class="special">&gt;&gt;</span><span class="special">(</span><span class="keyword">char32_t</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code></code> containing a parser equivalent to a <code class="computeroutput"><code class="computeroutput"><a class="link" href="seq_parser.html" title="Struct template seq_parser">seq_parser</a></code></code> containing <code class="computeroutput">parser_</code> followed by <code class="computeroutput">lit(rhs)</code>. </p>
 </li>
 <li class="listitem">
 <pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> 
          <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20132-bb"></a><span class="keyword">operator</span><span class="special">&gt;&gt;</span><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span> r<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20416-bb"></a><span class="keyword">operator</span><span class="special">&gt;&gt;</span><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span> r<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code></code> containing a parser equivalent to a <code class="computeroutput"><code class="computeroutput"><a class="link" href="seq_parser.html" title="Struct template seq_parser">seq_parser</a></code></code> containing <code class="computeroutput">parser_</code> followed by <code class="computeroutput">lit(rhs)</code>. </p>
 </li>
 <li class="listitem">
 <pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ParserType2<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20148-bb"></a><span class="keyword">operator</span><span class="special">&gt;</span><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">ParserType2</span> <span class="special">&gt;</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20432-bb"></a><span class="keyword">operator</span><span class="special">&gt;</span><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">ParserType2</span> <span class="special">&gt;</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code></code> containing a parser equivalent to a <code class="computeroutput"><code class="computeroutput"><a class="link" href="seq_parser.html" title="Struct template seq_parser">seq_parser</a></code></code> containing <code class="computeroutput">parser_</code> followed by <code class="computeroutput">rhs.parser_</code>. No back-tracking is allowed after <code class="computeroutput">parser_</code> succeeds; if <code class="computeroutput">rhs.parser_</code> fails after <code class="computeroutput">parser_</code> succeeds, the top-level parse fails. </p>
 </li>
 <li class="listitem">
-<pre class="literallayout"><span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20166-bb"></a><span class="keyword">operator</span><span class="special">&gt;</span><span class="special">(</span><span class="keyword">char</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+<pre class="literallayout"><span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20450-bb"></a><span class="keyword">operator</span><span class="special">&gt;</span><span class="special">(</span><span class="keyword">char</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code></code> containing a parser equivalent to a <code class="computeroutput"><code class="computeroutput"><a class="link" href="seq_parser.html" title="Struct template seq_parser">seq_parser</a></code></code> containing <code class="computeroutput">parser_</code> followed by <code class="computeroutput">lit(rhs)</code>. No back-tracking is allowed after <code class="computeroutput">parser_</code> succeeds; if <code class="computeroutput">lit(rhs)</code> fails after <code class="computeroutput">parser_</code> succeeds, the top-level parse fails. </p>
 </li>
 <li class="listitem">
-<pre class="literallayout"><span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20181-bb"></a><span class="keyword">operator</span><span class="special">&gt;</span><span class="special">(</span><span class="keyword">char32_t</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+<pre class="literallayout"><span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20465-bb"></a><span class="keyword">operator</span><span class="special">&gt;</span><span class="special">(</span><span class="keyword">char32_t</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code></code> containing a parser equivalent to a <code class="computeroutput"><code class="computeroutput"><a class="link" href="seq_parser.html" title="Struct template seq_parser">seq_parser</a></code></code> containing <code class="computeroutput">parser_</code> followed by <code class="computeroutput">lit(rhs)</code>. No back-tracking is allowed after <code class="computeroutput">parser_</code> succeeds; if <code class="computeroutput">lit(rhs)</code> fails after <code class="computeroutput">parser_</code> succeeds, the top-level parse fails. </p>
 </li>
 <li class="listitem">
 <pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> 
          <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20196-bb"></a><span class="keyword">operator</span><span class="special">&gt;</span><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span> r<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20480-bb"></a><span class="keyword">operator</span><span class="special">&gt;</span><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span> r<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code></code> containing a parser equivalent to a <code class="computeroutput"><code class="computeroutput"><a class="link" href="seq_parser.html" title="Struct template seq_parser">seq_parser</a></code></code> containing <code class="computeroutput">parser_</code> followed by <code class="computeroutput">lit(rhs)</code>. No back-tracking is allowed after <code class="computeroutput">parser_</code> succeeds; if <code class="computeroutput">lit(rhs)</code> fails after <code class="computeroutput">parser_</code> succeeds, the top-level parse fails. </p>
 </li>
 <li class="listitem">
 <pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ParserType2<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20215-bb"></a><span class="keyword">operator</span><span class="special">|</span><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">ParserType2</span> <span class="special">&gt;</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20499-bb"></a><span class="keyword">operator</span><span class="special">|</span><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">ParserType2</span> <span class="special">&gt;</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code></code> containing a parser equivalent to an <code class="computeroutput"><code class="computeroutput"><a class="link" href="or_parser.html" title="Struct template or_parser">or_parser</a></code></code> containing <code class="computeroutput">parser_</code> followed by <code class="computeroutput">rhs.parser_</code>. </p>
 </li>
 <li class="listitem">
-<pre class="literallayout"><span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20230-bb"></a><span class="keyword">operator</span><span class="special">|</span><span class="special">(</span><span class="keyword">char</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+<pre class="literallayout"><span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20514-bb"></a><span class="keyword">operator</span><span class="special">|</span><span class="special">(</span><span class="keyword">char</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code></code> containing a parser equivalent to an <code class="computeroutput"><code class="computeroutput"><a class="link" href="or_parser.html" title="Struct template or_parser">or_parser</a></code></code> containing <code class="computeroutput">parser_</code> followed by <code class="computeroutput">lit(rhs)</code>. </p>
 </li>
 <li class="listitem">
-<pre class="literallayout"><span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20242-bb"></a><span class="keyword">operator</span><span class="special">|</span><span class="special">(</span><span class="keyword">char32_t</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+<pre class="literallayout"><span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20526-bb"></a><span class="keyword">operator</span><span class="special">|</span><span class="special">(</span><span class="keyword">char32_t</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code></code> containing a parser equivalent to an <code class="computeroutput"><code class="computeroutput"><a class="link" href="or_parser.html" title="Struct template or_parser">or_parser</a></code></code> containing <code class="computeroutput">parser_</code> followed by <code class="computeroutput">lit(rhs)</code>. </p>
 </li>
 <li class="listitem">
 <pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> 
          <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20254-bb"></a><span class="keyword">operator</span><span class="special">|</span><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span> r<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20538-bb"></a><span class="keyword">operator</span><span class="special">|</span><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span> r<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code></code> containing a parser equivalent to an <code class="computeroutput"><code class="computeroutput"><a class="link" href="or_parser.html" title="Struct template or_parser">or_parser</a></code></code> containing <code class="computeroutput">parser_</code> followed by <code class="computeroutput">lit(rhs)</code>. </p>
 </li>
 <li class="listitem">
 <pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ParserType2<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20270-bb"></a><span class="keyword">operator</span><span class="special">-</span><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">ParserType2</span> <span class="special">&gt;</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20554-bb"></a><span class="keyword">operator</span><span class="special">-</span><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">ParserType2</span> <span class="special">&gt;</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code></code> containing a parser equivalent to <code class="computeroutput">!rhs &gt;&gt; *this</code>. </p>
 </li>
 <li class="listitem">
-<pre class="literallayout"><span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20282-bb"></a><span class="keyword">operator</span><span class="special">-</span><span class="special">(</span><span class="keyword">char</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+<pre class="literallayout"><span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20566-bb"></a><span class="keyword">operator</span><span class="special">-</span><span class="special">(</span><span class="keyword">char</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code></code> containing a parser equivalent to <code class="computeroutput">!lit(rhs) &gt;&gt; *this</code>. </p>
 </li>
 <li class="listitem">
-<pre class="literallayout"><span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20291-bb"></a><span class="keyword">operator</span><span class="special">-</span><span class="special">(</span><span class="keyword">char32_t</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+<pre class="literallayout"><span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20575-bb"></a><span class="keyword">operator</span><span class="special">-</span><span class="special">(</span><span class="keyword">char32_t</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code></code> containing a parser equivalent to <code class="computeroutput">!lit(rhs) &gt;&gt; *this</code>. </p>
 </li>
 <li class="listitem">
 <pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> 
          <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20300-bb"></a><span class="keyword">operator</span><span class="special">-</span><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span> r<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20584-bb"></a><span class="keyword">operator</span><span class="special">-</span><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span> r<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code></code> containing a parser equivalent to <code class="computeroutput">!lit(rhs) &gt;&gt; *this</code>. </p>
 </li>
 <li class="listitem">
 <pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ParserType2<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20313-bb"></a><span class="keyword">operator</span><span class="special">%</span><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">ParserType2</span> <span class="special">&gt;</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20597-bb"></a><span class="keyword">operator</span><span class="special">%</span><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">ParserType2</span> <span class="special">&gt;</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code></code> containing a parser equivalent to an <code class="computeroutput"><code class="computeroutput"><a class="link" href="delimited_seq_parser.html" title="Struct template delimited_seq_parser">delimited_seq_parser</a></code></code> containing <code class="computeroutput">parser_</code> and <code class="computeroutput">rhs.parser_</code>. </p>
 </li>
 <li class="listitem">
-<pre class="literallayout"><span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20328-bb"></a><span class="keyword">operator</span><span class="special">%</span><span class="special">(</span><span class="keyword">char</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+<pre class="literallayout"><span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20612-bb"></a><span class="keyword">operator</span><span class="special">%</span><span class="special">(</span><span class="keyword">char</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code></code> containing a parser equivalent to an <code class="computeroutput"><code class="computeroutput"><a class="link" href="delimited_seq_parser.html" title="Struct template delimited_seq_parser">delimited_seq_parser</a></code></code> containing <code class="computeroutput">parser_</code> and <code class="computeroutput">lit(rhs)</code>. </p>
 </li>
 <li class="listitem">
-<pre class="literallayout"><span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20340-bb"></a><span class="keyword">operator</span><span class="special">%</span><span class="special">(</span><span class="keyword">char32_t</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+<pre class="literallayout"><span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20624-bb"></a><span class="keyword">operator</span><span class="special">%</span><span class="special">(</span><span class="keyword">char32_t</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code></code> containing a parser equivalent to an <code class="computeroutput"><code class="computeroutput"><a class="link" href="delimited_seq_parser.html" title="Struct template delimited_seq_parser">delimited_seq_parser</a></code></code> containing <code class="computeroutput">parser_</code> and <code class="computeroutput">lit(rhs)</code>. </p>
 </li>
 <li class="listitem">
 <pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> 
          <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20352-bb"></a><span class="keyword">operator</span><span class="special">%</span><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span> r<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20636-bb"></a><span class="keyword">operator</span><span class="special">%</span><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span> r<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code></code> containing a parser equivalent to an <code class="computeroutput"><code class="computeroutput"><a class="link" href="delimited_seq_parser.html" title="Struct template delimited_seq_parser">delimited_seq_parser</a></code></code> containing <code class="computeroutput">parser_</code> and <code class="computeroutput">lit(rhs)</code>. </p>
 </li>
 <li class="listitem">
-<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Action<span class="special">&gt;</span> <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20368-bb"></a><span class="keyword">operator</span><span class="special">[</span><span class="special">]</span><span class="special">(</span><span class="identifier">Action</span> action<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
+<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Action<span class="special">&gt;</span> <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20652-bb"></a><span class="keyword">operator</span><span class="special">[</span><span class="special">]</span><span class="special">(</span><span class="identifier">Action</span> action<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
 <p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code></code> containing a parser equivalent to an <code class="computeroutput"><code class="computeroutput"><a class="link" href="action_parser.html" title="Struct template action_parser">action_parser</a></code></code> containing <code class="computeroutput">parser_</code>, with semantic action <code class="computeroutput">action</code>. </p>
 </li>
 <li class="listitem">
 <pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Arg<span class="special">,</span> <span class="keyword">typename</span><span class="special">...</span> Args<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20382-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">Arg</span> <span class="special">&amp;&amp;</span> arg<span class="special">,</span> <span class="identifier">Args</span> <span class="special">&amp;&amp;</span><span class="special">...</span> args<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20666-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">Arg</span> <span class="special">&amp;&amp;</span> arg<span class="special">,</span> <span class="identifier">Args</span> <span class="special">&amp;&amp;</span><span class="special">...</span> args<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p>Returns <code class="computeroutput">parser_((Arg &amp;&amp;)arg, (Args &amp;&amp;)args...)</code>. This is useful for those parsers that have <code class="computeroutput">operator()</code> overloads, e.g. <span style="color: red">&lt;lsquo&gt;&lt;/lsquo&gt;</span>char_('x<span style="color: red">&lt;rsquo&gt;&lt;/rsquo&gt;</span>)<span style="color: red">&lt;lsquo&gt;&lt;/lsquo&gt;</span>. By convention, parsers<span style="color: red">&lt;rsquo&gt;&lt;/rsquo&gt;</span> <code class="computeroutput">operator()</code>s return <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code></code>s.</p>
 <p>This function does not participate in overload resolution unless <code class="computeroutput">parser_((Arg &amp;&amp;)arg, (Args &amp;&amp;)args...)</code> is well-formed. </p>
 </li>
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-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template prefix_parse</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="operator%_idm22396.html" title="Function template operator%">
-<link rel="next" href="parse_idm22442.html" title="Function template parse">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="operator%_idm22396.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="parse_idm22442.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.prefix_parse_idm22411"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template prefix_parse</span></h2>
-<p>boost::parser::prefix_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> Attr<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_iter_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span> <span class="special">&amp;&amp;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_equality_comparable_with_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">prefix_parse</span><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span> first<span class="special">,</span> <span class="identifier">S</span> last<span class="special">,</span> 
-                    <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                    <span class="identifier">Attr</span> <span class="special">&amp;</span> attr<span class="special">,</span> <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34826"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">[first, last)</code> using <code class="computeroutput">parser</code>, and returns whether the parse was successful. On success, <code class="computeroutput">attr</code> will be assigned the value of the attribute produced by <code class="computeroutput">parser</code>. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="operator%_idm22396.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="parse_idm22442.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/prefix_parse_idm22413.html b/doc/html/boost/parser/prefix_parse_idm22413.html
deleted file mode 100644
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-<div class="refentry">
-<a name="boost.parser.prefix_parse_idm22413"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template prefix_parse</span></h2>
-<p>boost::parser::prefix_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> Attr<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_iter_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span> <span class="special">&amp;&amp;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_equality_comparable_with_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">prefix_parse</span><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span> first<span class="special">,</span> <span class="identifier">S</span> last<span class="special">,</span> 
-                    <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                    <span class="identifier">Attr</span> <span class="special">&amp;</span> attr<span class="special">,</span> <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34828"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">[first, last)</code> using <code class="computeroutput">parser</code>, and returns whether the parse was successful. On success, <code class="computeroutput">attr</code> will be assigned the value of the attribute produced by <code class="computeroutput">parser</code>. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
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diff --git a/doc/html/boost/parser/prefix_parse_idm22414.html b/doc/html/boost/parser/prefix_parse_idm22414.html
deleted file mode 100644
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+++ /dev/null
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-</div>
-<div class="refentry">
-<a name="boost.parser.prefix_parse_idm22414"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template prefix_parse</span></h2>
-<p>boost::parser::prefix_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> Attr<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_iter_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span> <span class="special">&amp;&amp;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_equality_comparable_with_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">prefix_parse</span><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span> first<span class="special">,</span> <span class="identifier">S</span> last<span class="special">,</span> 
-                    <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                    <span class="identifier">Attr</span> <span class="special">&amp;</span> attr<span class="special">,</span> <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34829"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">[first, last)</code> using <code class="computeroutput">parser</code>, and returns whether the parse was successful. On success, <code class="computeroutput">attr</code> will be assigned the value of the attribute produced by <code class="computeroutput">parser</code>. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
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diff --git a/doc/html/boost/parser/prefix_parse_idm22415.html b/doc/html/boost/parser/prefix_parse_idm22415.html
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-<html>
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-<div class="refentry">
-<a name="boost.parser.prefix_parse_idm22415"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template prefix_parse</span></h2>
-<p>boost::parser::prefix_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> Attr<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_iter_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span> <span class="special">&amp;&amp;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_equality_comparable_with_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">prefix_parse</span><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span> first<span class="special">,</span> <span class="identifier">S</span> last<span class="special">,</span> 
-                    <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                    <span class="identifier">Attr</span> <span class="special">&amp;</span> attr<span class="special">,</span> <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34829"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">[first, last)</code> using <code class="computeroutput">parser</code>, and returns whether the parse was successful. On success, <code class="computeroutput">attr</code> will be assigned the value of the attribute produced by <code class="computeroutput">parser</code>. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="operator%_idm22400.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="parse_idm22446.html"><img src="../../images/next.png" alt="Next"></a>
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diff --git a/doc/html/boost/parser/prefix_parse_idm22431.html b/doc/html/boost/parser/prefix_parse_idm22431.html
deleted file mode 100644
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-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
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-<div class="refentry">
-<a name="boost.parser.prefix_parse_idm22431"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template prefix_parse</span></h2>
-<p>boost::parser::prefix_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> Attr<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_iter_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span> <span class="special">&amp;&amp;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_equality_comparable_with_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">prefix_parse</span><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span> first<span class="special">,</span> <span class="identifier">S</span> last<span class="special">,</span> 
-                    <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                    <span class="identifier">Attr</span> <span class="special">&amp;</span> attr<span class="special">,</span> <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34845"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">[first, last)</code> using <code class="computeroutput">parser</code>, and returns whether the parse was successful. On success, <code class="computeroutput">attr</code> will be assigned the value of the attribute produced by <code class="computeroutput">parser</code>. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="operator%_idm22416.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="parse_idm22462.html"><img src="../../images/next.png" alt="Next"></a>
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diff --git a/doc/html/boost/parser/prefix_parse_idm22471.html b/doc/html/boost/parser/prefix_parse_idm22471.html
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-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
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-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template prefix_parse</span></h2>
-<p>boost::parser::prefix_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_iter_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span> <span class="special">&amp;&amp;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_equality_comparable_with_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">auto</span> <span class="identifier">prefix_parse</span><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span> first<span class="special">,</span> <span class="identifier">S</span> last<span class="special">,</span> 
-                    <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                    <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34980"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">[first, last)</code> using <code class="computeroutput">parser</code>. Returns a <code class="computeroutput">std::optional</code> containing the attribute produced by <code class="computeroutput">parser</code> on parse success, and <code class="computeroutput">std::nullopt</code> on parse failure. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
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diff --git a/doc/html/boost/parser/prefix_parse_idm22473.html b/doc/html/boost/parser/prefix_parse_idm22473.html
deleted file mode 100644
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+++ /dev/null
@@ -1,48 +0,0 @@
-<html>
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-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template prefix_parse</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
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-</div>
-<div class="refentry">
-<a name="boost.parser.prefix_parse_idm22473"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template prefix_parse</span></h2>
-<p>boost::parser::prefix_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_iter_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span> <span class="special">&amp;&amp;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_equality_comparable_with_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">auto</span> <span class="identifier">prefix_parse</span><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span> first<span class="special">,</span> <span class="identifier">S</span> last<span class="special">,</span> 
-                    <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                    <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34982"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">[first, last)</code> using <code class="computeroutput">parser</code>. Returns a <code class="computeroutput">std::optional</code> containing the attribute produced by <code class="computeroutput">parser</code> on parse success, and <code class="computeroutput">std::nullopt</code> on parse failure. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
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-<a accesskey="p" href="parse_idm22444.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="parse_idm22502.html"><img src="../../images/next.png" alt="Next"></a>
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diff --git a/doc/html/boost/parser/prefix_parse_idm22474.html b/doc/html/boost/parser/prefix_parse_idm22474.html
deleted file mode 100644
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--- a/doc/html/boost/parser/prefix_parse_idm22474.html
+++ /dev/null
@@ -1,48 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
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-</div>
-<div class="refentry">
-<a name="boost.parser.prefix_parse_idm22474"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template prefix_parse</span></h2>
-<p>boost::parser::prefix_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_iter_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span> <span class="special">&amp;&amp;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_equality_comparable_with_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">auto</span> <span class="identifier">prefix_parse</span><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span> first<span class="special">,</span> <span class="identifier">S</span> last<span class="special">,</span> 
-                    <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                    <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34983"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">[first, last)</code> using <code class="computeroutput">parser</code>. Returns a <code class="computeroutput">std::optional</code> containing the attribute produced by <code class="computeroutput">parser</code> on parse success, and <code class="computeroutput">std::nullopt</code> on parse failure. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="parse_idm22445.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="parse_idm22503.html"><img src="../../images/next.png" alt="Next"></a>
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-</body>
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diff --git a/doc/html/boost/parser/prefix_parse_idm22475.html b/doc/html/boost/parser/prefix_parse_idm22475.html
deleted file mode 100644
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--- a/doc/html/boost/parser/prefix_parse_idm22475.html
+++ /dev/null
@@ -1,48 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template prefix_parse</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
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-<div class="refentry">
-<a name="boost.parser.prefix_parse_idm22475"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template prefix_parse</span></h2>
-<p>boost::parser::prefix_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_iter_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span> <span class="special">&amp;&amp;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_equality_comparable_with_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">auto</span> <span class="identifier">prefix_parse</span><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span> first<span class="special">,</span> <span class="identifier">S</span> last<span class="special">,</span> 
-                    <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                    <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34983"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">[first, last)</code> using <code class="computeroutput">parser</code>. Returns a <code class="computeroutput">std::optional</code> containing the attribute produced by <code class="computeroutput">parser</code> on parse success, and <code class="computeroutput">std::nullopt</code> on parse failure. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="parse_idm22446.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="parse_idm22504.html"><img src="../../images/next.png" alt="Next"></a>
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-</body>
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diff --git a/doc/html/boost/parser/prefix_parse_idm22491.html b/doc/html/boost/parser/prefix_parse_idm22491.html
deleted file mode 100644
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--- a/doc/html/boost/parser/prefix_parse_idm22491.html
+++ /dev/null
@@ -1,48 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template prefix_parse</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
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-<link rel="prev" href="parse_idm22462.html" title="Function template parse">
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-<div class="refentry">
-<a name="boost.parser.prefix_parse_idm22491"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template prefix_parse</span></h2>
-<p>boost::parser::prefix_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_iter_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span> <span class="special">&amp;&amp;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_equality_comparable_with_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">auto</span> <span class="identifier">prefix_parse</span><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span> first<span class="special">,</span> <span class="identifier">S</span> last<span class="special">,</span> 
-                    <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                    <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm34999"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">[first, last)</code> using <code class="computeroutput">parser</code>. Returns a <code class="computeroutput">std::optional</code> containing the attribute produced by <code class="computeroutput">parser</code> on parse success, and <code class="computeroutput">std::nullopt</code> on parse failure. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
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-<a accesskey="p" href="parse_idm22462.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="parse_idm22520.html"><img src="../../images/next.png" alt="Next"></a>
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diff --git a/doc/html/boost/parser/prefix_parse_idm22527.html b/doc/html/boost/parser/prefix_parse_idm22527.html
deleted file mode 100644
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--- a/doc/html/boost/parser/prefix_parse_idm22527.html
+++ /dev/null
@@ -1,49 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template prefix_parse</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
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-</div>
-<div class="refentry">
-<a name="boost.parser.prefix_parse_idm22527"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template prefix_parse</span></h2>
-<p>boost::parser::prefix_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attr<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_iter_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span> <span class="special">&amp;&amp;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_equality_comparable_with_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">prefix_parse</span><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span> first<span class="special">,</span> <span class="identifier">S</span> last<span class="special">,</span> 
-                    <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                    <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> <span class="identifier">Attr</span> <span class="special">&amp;</span> attr<span class="special">,</span> 
-                    <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35145"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">[first, last)</code> using <code class="computeroutput">parser</code>, skipping all input recognized by <code class="computeroutput">skip</code> between the application of any two parsers, and returns whether the parse was successful. On success, <code class="computeroutput">attr</code> will be assigned the value of the attribute produced by <code class="computeroutput">parser</code>. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="parse_idm22500.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="parse_idm22563.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/prefix_parse_idm22529.html b/doc/html/boost/parser/prefix_parse_idm22529.html
deleted file mode 100644
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--- a/doc/html/boost/parser/prefix_parse_idm22529.html
+++ /dev/null
@@ -1,49 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template prefix_parse</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
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-</div>
-<div class="refentry">
-<a name="boost.parser.prefix_parse_idm22529"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template prefix_parse</span></h2>
-<p>boost::parser::prefix_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attr<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_iter_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span> <span class="special">&amp;&amp;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_equality_comparable_with_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">prefix_parse</span><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span> first<span class="special">,</span> <span class="identifier">S</span> last<span class="special">,</span> 
-                    <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                    <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> <span class="identifier">Attr</span> <span class="special">&amp;</span> attr<span class="special">,</span> 
-                    <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35147"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">[first, last)</code> using <code class="computeroutput">parser</code>, skipping all input recognized by <code class="computeroutput">skip</code> between the application of any two parsers, and returns whether the parse was successful. On success, <code class="computeroutput">attr</code> will be assigned the value of the attribute produced by <code class="computeroutput">parser</code>. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="parse_idm22502.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="parse_idm22565.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/prefix_parse_idm22530.html b/doc/html/boost/parser/prefix_parse_idm22530.html
deleted file mode 100644
index f05a3ae1..00000000
--- a/doc/html/boost/parser/prefix_parse_idm22530.html
+++ /dev/null
@@ -1,49 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template prefix_parse</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
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-</div>
-<div class="refentry">
-<a name="boost.parser.prefix_parse_idm22530"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template prefix_parse</span></h2>
-<p>boost::parser::prefix_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attr<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_iter_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span> <span class="special">&amp;&amp;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_equality_comparable_with_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">prefix_parse</span><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span> first<span class="special">,</span> <span class="identifier">S</span> last<span class="special">,</span> 
-                    <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                    <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> <span class="identifier">Attr</span> <span class="special">&amp;</span> attr<span class="special">,</span> 
-                    <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35148"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">[first, last)</code> using <code class="computeroutput">parser</code>, skipping all input recognized by <code class="computeroutput">skip</code> between the application of any two parsers, and returns whether the parse was successful. On success, <code class="computeroutput">attr</code> will be assigned the value of the attribute produced by <code class="computeroutput">parser</code>. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="parse_idm22503.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="parse_idm22566.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/prefix_parse_idm22531.html b/doc/html/boost/parser/prefix_parse_idm22531.html
deleted file mode 100644
index e0d2b618..00000000
--- a/doc/html/boost/parser/prefix_parse_idm22531.html
+++ /dev/null
@@ -1,49 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template prefix_parse</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
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-<a accesskey="p" href="parse_idm22504.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="parse_idm22567.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.prefix_parse_idm22531"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template prefix_parse</span></h2>
-<p>boost::parser::prefix_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attr<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_iter_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span> <span class="special">&amp;&amp;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_equality_comparable_with_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">prefix_parse</span><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span> first<span class="special">,</span> <span class="identifier">S</span> last<span class="special">,</span> 
-                    <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                    <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> <span class="identifier">Attr</span> <span class="special">&amp;</span> attr<span class="special">,</span> 
-                    <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35148"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">[first, last)</code> using <code class="computeroutput">parser</code>, skipping all input recognized by <code class="computeroutput">skip</code> between the application of any two parsers, and returns whether the parse was successful. On success, <code class="computeroutput">attr</code> will be assigned the value of the attribute produced by <code class="computeroutput">parser</code>. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
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diff --git a/doc/html/boost/parser/prefix_parse_idm22547.html b/doc/html/boost/parser/prefix_parse_idm22547.html
deleted file mode 100644
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--- a/doc/html/boost/parser/prefix_parse_idm22547.html
+++ /dev/null
@@ -1,49 +0,0 @@
-<html>
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-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
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-</div>
-<div class="refentry">
-<a name="boost.parser.prefix_parse_idm22547"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template prefix_parse</span></h2>
-<p>boost::parser::prefix_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attr<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_iter_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span> <span class="special">&amp;&amp;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_equality_comparable_with_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">bool</span> <span class="identifier">prefix_parse</span><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span> first<span class="special">,</span> <span class="identifier">S</span> last<span class="special">,</span> 
-                    <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                    <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> <span class="identifier">Attr</span> <span class="special">&amp;</span> attr<span class="special">,</span> 
-                    <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35164"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">[first, last)</code> using <code class="computeroutput">parser</code>, skipping all input recognized by <code class="computeroutput">skip</code> between the application of any two parsers, and returns whether the parse was successful. On success, <code class="computeroutput">attr</code> will be assigned the value of the attribute produced by <code class="computeroutput">parser</code>. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="parse_idm22520.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="parse_idm22583.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/prefix_parse_idm22597.html b/doc/html/boost/parser/prefix_parse_idm22597.html
deleted file mode 100644
index 831bbe4c..00000000
--- a/doc/html/boost/parser/prefix_parse_idm22597.html
+++ /dev/null
@@ -1,49 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template prefix_parse</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
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-</div>
-<div class="refentry">
-<a name="boost.parser.prefix_parse_idm22597"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template prefix_parse</span></h2>
-<p>boost::parser::prefix_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_iter_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span> <span class="special">&amp;&amp;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_equality_comparable_with_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">auto</span> <span class="identifier">prefix_parse</span><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span> first<span class="special">,</span> <span class="identifier">S</span> last<span class="special">,</span> 
-                    <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                    <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
-                    <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35319"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">[first, last)</code> using <code class="computeroutput">parser</code>, skipping all input recognized by <code class="computeroutput">skip</code> between the application of any two parsers. Returns a <code class="computeroutput">std::optional</code> containing the attribute produced by <code class="computeroutput">parser</code> on parse success, and <code class="computeroutput">std::nullopt</code> on parse failure. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="parse_idm22563.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="parse_idm22631.html"><img src="../../images/next.png" alt="Next"></a>
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-</body>
-</html>
diff --git a/doc/html/boost/parser/prefix_parse_idm22599.html b/doc/html/boost/parser/prefix_parse_idm22599.html
deleted file mode 100644
index b1e81630..00000000
--- a/doc/html/boost/parser/prefix_parse_idm22599.html
+++ /dev/null
@@ -1,49 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template prefix_parse</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
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-<div class="refentry">
-<a name="boost.parser.prefix_parse_idm22599"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template prefix_parse</span></h2>
-<p>boost::parser::prefix_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_iter_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span> <span class="special">&amp;&amp;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_equality_comparable_with_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">auto</span> <span class="identifier">prefix_parse</span><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span> first<span class="special">,</span> <span class="identifier">S</span> last<span class="special">,</span> 
-                    <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
-                    <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
-                    <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35321"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">[first, last)</code> using <code class="computeroutput">parser</code>, skipping all input recognized by <code class="computeroutput">skip</code> between the application of any two parsers. Returns a <code class="computeroutput">std::optional</code> containing the attribute produced by <code class="computeroutput">parser</code> on parse success, and <code class="computeroutput">std::nullopt</code> on parse failure. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="parse_idm22565.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="parse_idm22633.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/prefix_parse_idm22600.html b/doc/html/boost/parser/prefix_parse_idm22600.html
deleted file mode 100644
index 97b8bf3d..00000000
--- a/doc/html/boost/parser/prefix_parse_idm22600.html
+++ /dev/null
@@ -1,49 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template prefix_parse</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
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-</div>
-<div class="refentry">
-<a name="boost.parser.prefix_parse_idm22600"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template prefix_parse</span></h2>
-<p>boost::parser::prefix_parse</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_iter_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span> <span class="special">&amp;&amp;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_equality_comparable_with_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">auto</span> <span class="identifier">prefix_parse</span><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span> first<span class="special">,</span> <span class="identifier">S</span> last<span class="special">,</span> 
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-                    <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
-                    <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35322"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">[first, last)</code> using <code class="computeroutput">parser</code>, skipping all input recognized by <code class="computeroutput">skip</code> between the application of any two parsers. Returns a <code class="computeroutput">std::optional</code> containing the attribute produced by <code class="computeroutput">parser</code> on parse success, and <code class="computeroutput">std::nullopt</code> on parse failure. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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diff --git a/doc/html/boost/parser/prefix_parse_idm22601.html b/doc/html/boost/parser/prefix_parse_idm22601.html
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-<a name="boost.parser.prefix_parse_idm22601"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template prefix_parse</span></h2>
-<p>boost::parser::prefix_parse</p>
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-<h2 class="refsynopsisdiv-title">Synopsis</h2>
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-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_iter_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span> <span class="special">&amp;&amp;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_equality_comparable_with_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
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-<div class="refsect1">
-<a name="idm35322"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">[first, last)</code> using <code class="computeroutput">parser</code>, skipping all input recognized by <code class="computeroutput">skip</code> between the application of any two parsers. Returns a <code class="computeroutput">std::optional</code> containing the attribute produced by <code class="computeroutput">parser</code> on parse success, and <code class="computeroutput">std::nullopt</code> on parse failure. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
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diff --git a/doc/html/boost/parser/prefix_parse_idm22617.html b/doc/html/boost/parser/prefix_parse_idm22617.html
deleted file mode 100644
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-</div>
-<div class="refentry">
-<a name="boost.parser.prefix_parse_idm22617"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template prefix_parse</span></h2>
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-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
-         <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> 
-         <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_iter_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span> <span class="special">&amp;&amp;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_equality_comparable_with_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">auto</span> <span class="identifier">prefix_parse</span><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span> first<span class="special">,</span> <span class="identifier">S</span> last<span class="special">,</span> 
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-                    <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
-                    <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35338"></a><h2>Description</h2>
-<p>Parses <code class="computeroutput">[first, last)</code> using <code class="computeroutput">parser</code>, skipping all input recognized by <code class="computeroutput">skip</code> between the application of any two parsers. Returns a <code class="computeroutput">std::optional</code> containing the attribute produced by <code class="computeroutput">parser</code> on parse success, and <code class="computeroutput">std::nullopt</code> on parse failure. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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-</div>
-<hr>
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-<a accesskey="p" href="parse_idm22583.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="parse_idm22651.html"><img src="../../images/next.png" alt="Next"></a>
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similarity index 91%
rename from doc/html/boost/parser/prefix_parse_idm22409.html
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-<link rel="next" href="parse_idm22440.html" title="Function template parse">
+<link rel="prev" href="operator%_idm22743.html" title="Function template operator%">
+<link rel="next" href="parse_idm22789.html" title="Function template parse">
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+<a accesskey="p" href="operator%_idm22743.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="parse_idm22789.html"><img src="../../images/next.png" alt="Next"></a>
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-<a name="boost.parser.prefix_parse_idm22409"></a><div class="titlepage"></div>
+<a name="boost.parser.prefix_parse_idm22758"></a><div class="titlepage"></div>
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 <div class="refsect1">
-<a name="idm34824"></a><h2>Description</h2>
+<a name="idm35288"></a><h2>Description</h2>
 <p>Parses <code class="computeroutput">[first, last)</code> using <code class="computeroutput">parser</code>, and returns whether the parse was successful. On success, <code class="computeroutput">attr</code> will be assigned the value of the attribute produced by <code class="computeroutput">parser</code>. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
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 </div>
@@ -42,7 +42,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
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-<a accesskey="p" href="operator%_idm22394.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="parse_idm22440.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="operator%_idm22743.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="parse_idm22789.html"><img src="../../images/next.png" alt="Next"></a>
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diff --git a/doc/html/boost/parser/prefix_parse_idm22469.html b/doc/html/boost/parser/prefix_parse_idm22818.html
similarity index 90%
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rename to doc/html/boost/parser/prefix_parse_idm22818.html
index fc54ce72..6937e966 100644
--- a/doc/html/boost/parser/prefix_parse_idm22469.html
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-<link rel="prev" href="parse_idm22440.html" title="Function template parse">
-<link rel="next" href="parse_idm22498.html" title="Function template parse">
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+<link rel="next" href="parse_idm22847.html" title="Function template parse">
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+<a accesskey="p" href="parse_idm22789.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="parse_idm22847.html"><img src="../../images/next.png" alt="Next"></a>
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+<a name="boost.parser.prefix_parse_idm22818"></a><div class="titlepage"></div>
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 <h2><span class="refentrytitle">Function template prefix_parse</span></h2>
 <p>boost::parser::prefix_parse</p>
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                     <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm34978"></a><h2>Description</h2>
+<a name="idm35442"></a><h2>Description</h2>
 <p>Parses <code class="computeroutput">[first, last)</code> using <code class="computeroutput">parser</code>. Returns a <code class="computeroutput">std::optional</code> containing the attribute produced by <code class="computeroutput">parser</code> on parse success, and <code class="computeroutput">std::nullopt</code> on parse failure. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
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 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="parse_idm22440.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="parse_idm22498.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="parse_idm22789.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="parse_idm22847.html"><img src="../../images/next.png" alt="Next"></a>
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diff --git a/doc/html/boost/parser/prefix_parse_idm22525.html b/doc/html/boost/parser/prefix_parse_idm22874.html
similarity index 91%
rename from doc/html/boost/parser/prefix_parse_idm22525.html
rename to doc/html/boost/parser/prefix_parse_idm22874.html
index 4a8cd4a6..97ab80e8 100644
--- a/doc/html/boost/parser/prefix_parse_idm22525.html
+++ b/doc/html/boost/parser/prefix_parse_idm22874.html
@@ -6,16 +6,16 @@
 <meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
 <link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="parse_idm22498.html" title="Function template parse">
-<link rel="next" href="parse_idm22561.html" title="Function template parse">
+<link rel="prev" href="parse_idm22847.html" title="Function template parse">
+<link rel="next" href="parse_idm22910.html" title="Function template parse">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="parse_idm22498.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="parse_idm22561.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="parse_idm22847.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="parse_idm22910.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
-<a name="boost.parser.prefix_parse_idm22525"></a><div class="titlepage"></div>
+<a name="boost.parser.prefix_parse_idm22874"></a><div class="titlepage"></div>
 <div class="refnamediv">
 <h2><span class="refentrytitle">Function template prefix_parse</span></h2>
 <p>boost::parser::prefix_parse</p>
@@ -32,7 +32,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
                     <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> <span class="identifier">Attr</span> <span class="special">&amp;</span> attr<span class="special">,</span> 
                     <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm35143"></a><h2>Description</h2>
+<a name="idm35607"></a><h2>Description</h2>
 <p>Parses <code class="computeroutput">[first, last)</code> using <code class="computeroutput">parser</code>, skipping all input recognized by <code class="computeroutput">skip</code> between the application of any two parsers, and returns whether the parse was successful. On success, <code class="computeroutput">attr</code> will be assigned the value of the attribute produced by <code class="computeroutput">parser</code>. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
 </div>
 </div>
@@ -43,7 +43,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="parse_idm22498.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="parse_idm22561.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="parse_idm22847.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="parse_idm22910.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/prefix_parse_idm22595.html b/doc/html/boost/parser/prefix_parse_idm22944.html
similarity index 91%
rename from doc/html/boost/parser/prefix_parse_idm22595.html
rename to doc/html/boost/parser/prefix_parse_idm22944.html
index b083cbf4..af124bf6 100644
--- a/doc/html/boost/parser/prefix_parse_idm22595.html
+++ b/doc/html/boost/parser/prefix_parse_idm22944.html
@@ -6,16 +6,16 @@
 <meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
 <link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="parse_idm22561.html" title="Function template parse">
-<link rel="next" href="parse_idm22629.html" title="Function template parse">
+<link rel="prev" href="parse_idm22910.html" title="Function template parse">
+<link rel="next" href="parse_idm22978.html" title="Function template parse">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="parse_idm22561.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="parse_idm22629.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="parse_idm22910.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="parse_idm22978.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
-<a name="boost.parser.prefix_parse_idm22595"></a><div class="titlepage"></div>
+<a name="boost.parser.prefix_parse_idm22944"></a><div class="titlepage"></div>
 <div class="refnamediv">
 <h2><span class="refentrytitle">Function template prefix_parse</span></h2>
 <p>boost::parser::prefix_parse</p>
@@ -32,7 +32,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
                     <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
                     <span class="identifier">trace</span> trace_mode <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm35317"></a><h2>Description</h2>
+<a name="idm35781"></a><h2>Description</h2>
 <p>Parses <code class="computeroutput">[first, last)</code> using <code class="computeroutput">parser</code>, skipping all input recognized by <code class="computeroutput">skip</code> between the application of any two parsers. Returns a <code class="computeroutput">std::optional</code> containing the attribute produced by <code class="computeroutput">parser</code> on parse success, and <code class="computeroutput">std::nullopt</code> on parse failure. If <code class="computeroutput">trace_mode == trace::on</code>, a verbose trace of the parse will be streamed to <code class="computeroutput">std::cout</code>. </p>
 </div>
 </div>
@@ -43,7 +43,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="parse_idm22561.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="parse_idm22629.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="parse_idm22910.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="parse_idm22978.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/raw.html b/doc/html/boost/parser/raw.html
index ec062e3e..aaa46329 100644
--- a/doc/html/boost/parser/raw.html
+++ b/doc/html/boost/parser/raw.html
@@ -25,8 +25,8 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="keyword">constexpr</span> <a class="link" href="directive.html" title="Struct template directive">directive</a><span class="special">&lt;</span> <a class="link" href="raw_parser.html" title="Struct template raw_parser">raw_parser</a> <span class="special">&gt;</span> raw<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm32816"></a><h2>Description</h2>
-<p>The <code class="computeroutput">raw</code> directive, whose <code class="computeroutput">operator[]</code> returns an <code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a>&lt;<a class="link" href="raw_parser.html" title="Struct template raw_parser">raw_parser</a>&lt;P&gt;&gt;</code> from a given parser of type <code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a>&lt;P&gt;</code>. </p>
+<a name="idm33199"></a><h2>Description</h2>
+<p>The <code class="computeroutput">raw</code> directive, whose <code class="computeroutput">operator[]</code> returns a <code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a>&lt;<a class="link" href="raw_parser.html" title="Struct template raw_parser">raw_parser</a>&lt;P&gt;&gt;</code> from a given parser of type <code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a>&lt;P&gt;</code>. </p>
 </div>
 </div>
 <div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
diff --git a/doc/html/boost/parser/raw_parser.html b/doc/html/boost/parser/raw_parser.html
index e704f39b..3144e4b5 100644
--- a/doc/html/boost/parser/raw_parser.html
+++ b/doc/html/boost/parser/raw_parser.html
@@ -26,15 +26,15 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
 <span class="keyword">struct</span> <a class="link" href="raw_parser.html" title="Struct template raw_parser">raw_parser</a> <span class="special">{</span>
 
-  <span class="comment">// <a class="link" href="raw_parser.html#idm20429-bb">public member functions</a></span>
+  <span class="comment">// <a class="link" href="raw_parser.html#idm20713-bb">public member functions</a></span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
     <a class="link" href="subrange.html" title="Struct template subrange">subrange</a><span class="special">&lt;</span> <span class="identifier">Iter</span> <span class="special">&gt;</span> 
-    <a class="link" href="raw_parser.html#idm20430-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <a class="link" href="raw_parser.html#idm20714-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
          <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="raw_parser.html#idm20455-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">void</span> <a class="link" href="raw_parser.html#idm20739-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">,</span> 
               <span class="identifier">Attribute</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
 
@@ -42,21 +42,21 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
   <span class="identifier">Parser</span> <span class="identifier">parser_</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm28839"></a><h2>Description</h2>
+<a name="idm29162"></a><h2>Description</h2>
 <p>Applies the given parser <code class="computeroutput">p</code> of type <code class="computeroutput">Parser</code>; regardless of the attribute produced by <code class="computeroutput">Parser</code>, this parser's attribute is equivalent to <code class="computeroutput">_where(ctx)</code> within a semantic action on <code class="computeroutput">p</code>. The parse succeeds iff <code class="computeroutput">p</code> succeeds. </p>
 <div class="refsect2">
-<a name="idm28848"></a><h3>
-<a name="idm20429-bb"></a><code class="computeroutput">raw_parser</code> public member functions</h3>
+<a name="idm29171"></a><h3>
+<a name="idm20713-bb"></a><code class="computeroutput">raw_parser</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
   <a class="link" href="subrange.html" title="Struct template subrange">subrange</a><span class="special">&lt;</span> <span class="identifier">Iter</span> <span class="special">&gt;</span> 
-  <a name="idm20430-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <a name="idm20714-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
        <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
        <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm20455-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="keyword">void</span> <a name="idm20739-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">,</span> <span class="identifier">Attribute</span> <span class="special">&amp;</span> retval<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 </ol></div>
diff --git a/doc/html/boost/parser/repeat_directive.html b/doc/html/boost/parser/repeat_directive.html
index 835ad949..bd830bce 100644
--- a/doc/html/boost/parser/repeat_directive.html
+++ b/doc/html/boost/parser/repeat_directive.html
@@ -26,22 +26,22 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> MinType<span class="special">,</span> <span class="keyword">typename</span> MaxType<span class="special">&gt;</span> 
 <span class="keyword">struct</span> <a class="link" href="repeat_directive.html" title="Struct template repeat_directive">repeat_directive</a> <span class="special">{</span>
 
-  <span class="comment">// <a class="link" href="repeat_directive.html#idm20495-bb">public member functions</a></span>
+  <span class="comment">// <a class="link" href="repeat_directive.html#idm20779-bb">public member functions</a></span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser2<span class="special">&gt;</span> 
-    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="repeat_directive.html#idm20496-bb"><span class="keyword">operator</span><span class="special">[</span><span class="special">]</span></a><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser2</span> <span class="special">&gt;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="repeat_directive.html#idm20780-bb"><span class="keyword">operator</span><span class="special">[</span><span class="special">]</span></a><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser2</span> <span class="special">&gt;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
 
   <span class="comment">// public data members</span>
   <span class="identifier">MinType</span> <span class="identifier">min_</span><span class="special">;</span>
   <span class="identifier">MaxType</span> <span class="identifier">max_</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm29005"></a><h2>Description</h2>
+<a name="idm29328"></a><h2>Description</h2>
 <p>Represents a <code class="computeroutput"><a class="link" href="repeat_parser.html" title="Struct template repeat_parser">repeat_parser</a></code> as a directive (e.g. <code class="computeroutput">repeat[other_parser]</code>). </p>
 <div class="refsect2">
-<a name="idm29011"></a><h3>
-<a name="idm20495-bb"></a><code class="computeroutput">repeat_directive</code> public member functions</h3>
+<a name="idm29334"></a><h3>
+<a name="idm20779-bb"></a><code class="computeroutput">repeat_directive</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser2<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20496-bb"></a><span class="keyword">operator</span><span class="special">[</span><span class="special">]</span><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser2</span> <span class="special">&gt;</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li></ol></div>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20780-bb"></a><span class="keyword">operator</span><span class="special">[</span><span class="special">]</span><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser2</span> <span class="special">&gt;</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li></ol></div>
 </div>
 </div>
 </div>
diff --git a/doc/html/boost/parser/repeat_idm22094.html b/doc/html/boost/parser/repeat_idm22094.html
deleted file mode 100644
index 3495ece2..00000000
--- a/doc/html/boost/parser/repeat_idm22094.html
+++ /dev/null
@@ -1,43 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template repeat</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="with_error_handler.html" title="Function template with_error_handler">
-<link rel="next" href="repeat_idm22112.html" title="Function template repeat">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="with_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="repeat_idm22112.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.repeat_idm22094"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template repeat</span></h2>
-<p>boost::parser::repeat</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <span class="keyword">constexpr</span> <a class="link" href="repeat_directive.html" title="Struct template repeat_directive">repeat_directive</a><span class="special">&lt;</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">T</span> <span class="special">&gt;</span> <span class="identifier">repeat</span><span class="special">(</span><span class="identifier">T</span> n<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm33916"></a><h2>Description</h2>
-<p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="repeat_directive.html" title="Struct template repeat_directive">repeat_directive</a></code></code> that repeats exactly <code class="computeroutput">n</code> times, and whose <code class="computeroutput">operator[]</code> returns an <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code>&lt;<code class="computeroutput"><a class="link" href="repeat_parser.html" title="Struct template repeat_parser">repeat_parser</a></code>&lt;P&gt;&gt;</code> from a given parser of type <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code>&lt;P&gt;</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="with_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="repeat_idm22112.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/repeat_idm22096.html b/doc/html/boost/parser/repeat_idm22096.html
deleted file mode 100644
index 324bacec..00000000
--- a/doc/html/boost/parser/repeat_idm22096.html
+++ /dev/null
@@ -1,43 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template repeat</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="with_error_handler.html" title="Function template with_error_handler">
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-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="with_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="repeat_idm22114.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.repeat_idm22096"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template repeat</span></h2>
-<p>boost::parser::repeat</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <span class="keyword">constexpr</span> <a class="link" href="repeat_directive.html" title="Struct template repeat_directive">repeat_directive</a><span class="special">&lt;</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">T</span> <span class="special">&gt;</span> <span class="identifier">repeat</span><span class="special">(</span><span class="identifier">T</span> n<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm33918"></a><h2>Description</h2>
-<p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="repeat_directive.html" title="Struct template repeat_directive">repeat_directive</a></code></code> that repeats exactly <code class="computeroutput">n</code> times, and whose <code class="computeroutput">operator[]</code> returns an <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code>&lt;<code class="computeroutput"><a class="link" href="repeat_parser.html" title="Struct template repeat_parser">repeat_parser</a></code>&lt;P&gt;&gt;</code> from a given parser of type <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code>&lt;P&gt;</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="with_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="repeat_idm22114.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/repeat_idm22097.html b/doc/html/boost/parser/repeat_idm22097.html
deleted file mode 100644
index 857d882e..00000000
--- a/doc/html/boost/parser/repeat_idm22097.html
+++ /dev/null
@@ -1,43 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template repeat</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="with_error_handler.html" title="Function template with_error_handler">
-<link rel="next" href="repeat_idm22115.html" title="Function template repeat">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="with_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="repeat_idm22115.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.repeat_idm22097"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template repeat</span></h2>
-<p>boost::parser::repeat</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <span class="keyword">constexpr</span> <a class="link" href="repeat_directive.html" title="Struct template repeat_directive">repeat_directive</a><span class="special">&lt;</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">T</span> <span class="special">&gt;</span> <span class="identifier">repeat</span><span class="special">(</span><span class="identifier">T</span> n<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm33919"></a><h2>Description</h2>
-<p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="repeat_directive.html" title="Struct template repeat_directive">repeat_directive</a></code></code> that repeats exactly <code class="computeroutput">n</code> times, and whose <code class="computeroutput">operator[]</code> returns an <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code>&lt;<code class="computeroutput"><a class="link" href="repeat_parser.html" title="Struct template repeat_parser">repeat_parser</a></code>&lt;P&gt;&gt;</code> from a given parser of type <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code>&lt;P&gt;</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="with_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="repeat_idm22115.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/repeat_idm22098.html b/doc/html/boost/parser/repeat_idm22098.html
deleted file mode 100644
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--- a/doc/html/boost/parser/repeat_idm22098.html
+++ /dev/null
@@ -1,43 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template repeat</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="with_error_handler.html" title="Function template with_error_handler">
-<link rel="next" href="repeat_idm22116.html" title="Function template repeat">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="with_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="repeat_idm22116.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.repeat_idm22098"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template repeat</span></h2>
-<p>boost::parser::repeat</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <span class="keyword">constexpr</span> <a class="link" href="repeat_directive.html" title="Struct template repeat_directive">repeat_directive</a><span class="special">&lt;</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">T</span> <span class="special">&gt;</span> <span class="identifier">repeat</span><span class="special">(</span><span class="identifier">T</span> n<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm33919"></a><h2>Description</h2>
-<p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="repeat_directive.html" title="Struct template repeat_directive">repeat_directive</a></code></code> that repeats exactly <code class="computeroutput">n</code> times, and whose <code class="computeroutput">operator[]</code> returns an <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code>&lt;<code class="computeroutput"><a class="link" href="repeat_parser.html" title="Struct template repeat_parser">repeat_parser</a></code>&lt;P&gt;&gt;</code> from a given parser of type <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code>&lt;P&gt;</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="with_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="repeat_idm22116.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/repeat_idm22112.html b/doc/html/boost/parser/repeat_idm22112.html
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--- a/doc/html/boost/parser/repeat_idm22112.html
+++ /dev/null
@@ -1,45 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template repeat</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="repeat_idm22094.html" title="Function template repeat">
-<link rel="next" href="attr.html" title="Function template attr">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="repeat_idm22094.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="attr.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.repeat_idm22112"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template repeat</span></h2>
-<p>boost::parser::repeat</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> MinType<span class="special">,</span> <span class="keyword">typename</span> MaxType<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <a class="link" href="repeat_directive.html" title="Struct template repeat_directive">repeat_directive</a><span class="special">&lt;</span> <span class="identifier">MinType</span><span class="special">,</span> <span class="identifier">MaxType</span> <span class="special">&gt;</span> 
-  <span class="identifier">repeat</span><span class="special">(</span><span class="identifier">MinType</span> min_<span class="special">,</span> <span class="identifier">MaxType</span> max_<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm33963"></a><h2>Description</h2>
-<p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="repeat_directive.html" title="Struct template repeat_directive">repeat_directive</a></code></code> that repeats between <code class="computeroutput">min_</code> and <code class="computeroutput">max_</code> times, inclusive, and whose <code class="computeroutput">operator[]</code> returns an <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code>&lt;<code class="computeroutput"><a class="link" href="repeat_parser.html" title="Struct template repeat_parser">repeat_parser</a></code>&lt;P&gt;&gt;</code> from a given parser of type <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code>&lt;P&gt;</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="repeat_idm22094.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="attr.html"><img src="../../images/next.png" alt="Next"></a>
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diff --git a/doc/html/boost/parser/repeat_idm22114.html b/doc/html/boost/parser/repeat_idm22114.html
deleted file mode 100644
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--- a/doc/html/boost/parser/repeat_idm22114.html
+++ /dev/null
@@ -1,43 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template repeat</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="with_error_handler.html" title="Function template with_error_handler">
-<link rel="next" href="repeat_idm22132.html" title="Function template repeat">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="with_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="repeat_idm22132.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.repeat_idm22114"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template repeat</span></h2>
-<p>boost::parser::repeat</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <span class="keyword">constexpr</span> <a class="link" href="repeat_directive.html" title="Struct template repeat_directive">repeat_directive</a><span class="special">&lt;</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">T</span> <span class="special">&gt;</span> <span class="identifier">repeat</span><span class="special">(</span><span class="identifier">T</span> n<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm33935"></a><h2>Description</h2>
-<p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="repeat_directive.html" title="Struct template repeat_directive">repeat_directive</a></code></code> that repeats exactly <code class="computeroutput">n</code> times, and whose <code class="computeroutput">operator[]</code> returns an <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code>&lt;<code class="computeroutput"><a class="link" href="repeat_parser.html" title="Struct template repeat_parser">repeat_parser</a></code>&lt;P&gt;&gt;</code> from a given parser of type <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code>&lt;P&gt;</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="with_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="repeat_idm22132.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/repeat_idm22115.html b/doc/html/boost/parser/repeat_idm22115.html
deleted file mode 100644
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--- a/doc/html/boost/parser/repeat_idm22115.html
+++ /dev/null
@@ -1,45 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template repeat</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="repeat_idm22097.html" title="Function template repeat">
-<link rel="next" href="attr.html" title="Function template attr">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="repeat_idm22097.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="attr.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.repeat_idm22115"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template repeat</span></h2>
-<p>boost::parser::repeat</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> MinType<span class="special">,</span> <span class="keyword">typename</span> MaxType<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <a class="link" href="repeat_directive.html" title="Struct template repeat_directive">repeat_directive</a><span class="special">&lt;</span> <span class="identifier">MinType</span><span class="special">,</span> <span class="identifier">MaxType</span> <span class="special">&gt;</span> 
-  <span class="identifier">repeat</span><span class="special">(</span><span class="identifier">MinType</span> min_<span class="special">,</span> <span class="identifier">MaxType</span> max_<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm33966"></a><h2>Description</h2>
-<p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="repeat_directive.html" title="Struct template repeat_directive">repeat_directive</a></code></code> that repeats between <code class="computeroutput">min_</code> and <code class="computeroutput">max_</code> times, inclusive, and whose <code class="computeroutput">operator[]</code> returns an <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code>&lt;<code class="computeroutput"><a class="link" href="repeat_parser.html" title="Struct template repeat_parser">repeat_parser</a></code>&lt;P&gt;&gt;</code> from a given parser of type <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code>&lt;P&gt;</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="repeat_idm22097.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="attr.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/repeat_idm22116.html b/doc/html/boost/parser/repeat_idm22116.html
deleted file mode 100644
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--- a/doc/html/boost/parser/repeat_idm22116.html
+++ /dev/null
@@ -1,45 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template repeat</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="repeat_idm22098.html" title="Function template repeat">
-<link rel="next" href="attr.html" title="Function template attr">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="repeat_idm22098.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="attr.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.repeat_idm22116"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template repeat</span></h2>
-<p>boost::parser::repeat</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> MinType<span class="special">,</span> <span class="keyword">typename</span> MaxType<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <a class="link" href="repeat_directive.html" title="Struct template repeat_directive">repeat_directive</a><span class="special">&lt;</span> <span class="identifier">MinType</span><span class="special">,</span> <span class="identifier">MaxType</span> <span class="special">&gt;</span> 
-  <span class="identifier">repeat</span><span class="special">(</span><span class="identifier">MinType</span> min_<span class="special">,</span> <span class="identifier">MaxType</span> max_<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm33966"></a><h2>Description</h2>
-<p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="repeat_directive.html" title="Struct template repeat_directive">repeat_directive</a></code></code> that repeats between <code class="computeroutput">min_</code> and <code class="computeroutput">max_</code> times, inclusive, and whose <code class="computeroutput">operator[]</code> returns an <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code>&lt;<code class="computeroutput"><a class="link" href="repeat_parser.html" title="Struct template repeat_parser">repeat_parser</a></code>&lt;P&gt;&gt;</code> from a given parser of type <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code>&lt;P&gt;</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="repeat_idm22098.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="attr.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/repeat_idm22132.html b/doc/html/boost/parser/repeat_idm22132.html
deleted file mode 100644
index fe47c0f3..00000000
--- a/doc/html/boost/parser/repeat_idm22132.html
+++ /dev/null
@@ -1,45 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template repeat</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="repeat_idm22114.html" title="Function template repeat">
-<link rel="next" href="attr.html" title="Function template attr">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="repeat_idm22114.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="attr.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.repeat_idm22132"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template repeat</span></h2>
-<p>boost::parser::repeat</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> MinType<span class="special">,</span> <span class="keyword">typename</span> MaxType<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <a class="link" href="repeat_directive.html" title="Struct template repeat_directive">repeat_directive</a><span class="special">&lt;</span> <span class="identifier">MinType</span><span class="special">,</span> <span class="identifier">MaxType</span> <span class="special">&gt;</span> 
-  <span class="identifier">repeat</span><span class="special">(</span><span class="identifier">MinType</span> min_<span class="special">,</span> <span class="identifier">MaxType</span> max_<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm33982"></a><h2>Description</h2>
-<p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="repeat_directive.html" title="Struct template repeat_directive">repeat_directive</a></code></code> that repeats between <code class="computeroutput">min_</code> and <code class="computeroutput">max_</code> times, inclusive, and whose <code class="computeroutput">operator[]</code> returns an <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code>&lt;<code class="computeroutput"><a class="link" href="repeat_parser.html" title="Struct template repeat_parser">repeat_parser</a></code>&lt;P&gt;&gt;</code> from a given parser of type <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code>&lt;P&gt;</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="repeat_idm22114.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="attr.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/repeat_idm22092.html b/doc/html/boost/parser/repeat_idm22441.html
similarity index 78%
rename from doc/html/boost/parser/repeat_idm22092.html
rename to doc/html/boost/parser/repeat_idm22441.html
index d8c16fb1..6916cb61 100644
--- a/doc/html/boost/parser/repeat_idm22092.html
+++ b/doc/html/boost/parser/repeat_idm22441.html
@@ -7,15 +7,15 @@
 <link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
 <link rel="prev" href="with_error_handler.html" title="Function template with_error_handler">
-<link rel="next" href="repeat_idm22110.html" title="Function template repeat">
+<link rel="next" href="repeat_idm22459.html" title="Function template repeat">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="with_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="repeat_idm22110.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="with_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="repeat_idm22459.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
-<a name="boost.parser.repeat_idm22092"></a><div class="titlepage"></div>
+<a name="boost.parser.repeat_idm22441"></a><div class="titlepage"></div>
 <div class="refnamediv">
 <h2><span class="refentrytitle">Function template repeat</span></h2>
 <p>boost::parser::repeat</p>
@@ -26,8 +26,8 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span>
 <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <span class="keyword">constexpr</span> <a class="link" href="repeat_directive.html" title="Struct template repeat_directive">repeat_directive</a><span class="special">&lt;</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">T</span> <span class="special">&gt;</span> <span class="identifier">repeat</span><span class="special">(</span><span class="identifier">T</span> n<span class="special">)</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm33914"></a><h2>Description</h2>
-<p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="repeat_directive.html" title="Struct template repeat_directive">repeat_directive</a></code></code> that repeats exactly <code class="computeroutput">n</code> times, and whose <code class="computeroutput">operator[]</code> returns an <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code>&lt;<code class="computeroutput"><a class="link" href="repeat_parser.html" title="Struct template repeat_parser">repeat_parser</a></code>&lt;P&gt;&gt;</code> from a given parser of type <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code>&lt;P&gt;</code>. </p>
+<a name="idm34378"></a><h2>Description</h2>
+<p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="repeat_directive.html" title="Struct template repeat_directive">repeat_directive</a></code></code> that repeats exactly <code class="computeroutput">n</code> times, and whose <code class="computeroutput">operator[]</code> returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code>&lt;<code class="computeroutput"><a class="link" href="repeat_parser.html" title="Struct template repeat_parser">repeat_parser</a></code>&lt;P&gt;&gt;</code> from a given parser of type <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code>&lt;P&gt;</code>. </p>
 </div>
 </div>
 <div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
@@ -37,7 +37,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="with_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="repeat_idm22110.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="with_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="repeat_idm22459.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/repeat_idm22110.html b/doc/html/boost/parser/repeat_idm22459.html
similarity index 78%
rename from doc/html/boost/parser/repeat_idm22110.html
rename to doc/html/boost/parser/repeat_idm22459.html
index ba074bb9..3f3ede0f 100644
--- a/doc/html/boost/parser/repeat_idm22110.html
+++ b/doc/html/boost/parser/repeat_idm22459.html
@@ -6,16 +6,16 @@
 <meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
 <link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="repeat_idm22092.html" title="Function template repeat">
+<link rel="prev" href="repeat_idm22441.html" title="Function template repeat">
 <link rel="next" href="attr.html" title="Function template attr">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="repeat_idm22092.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="attr.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="repeat_idm22441.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="attr.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
-<a name="boost.parser.repeat_idm22110"></a><div class="titlepage"></div>
+<a name="boost.parser.repeat_idm22459"></a><div class="titlepage"></div>
 <div class="refnamediv">
 <h2><span class="refentrytitle">Function template repeat</span></h2>
 <p>boost::parser::repeat</p>
@@ -28,8 +28,8 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
   <span class="keyword">constexpr</span> <a class="link" href="repeat_directive.html" title="Struct template repeat_directive">repeat_directive</a><span class="special">&lt;</span> <span class="identifier">MinType</span><span class="special">,</span> <span class="identifier">MaxType</span> <span class="special">&gt;</span> 
   <span class="identifier">repeat</span><span class="special">(</span><span class="identifier">MinType</span> min_<span class="special">,</span> <span class="identifier">MaxType</span> max_<span class="special">)</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm33961"></a><h2>Description</h2>
-<p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="repeat_directive.html" title="Struct template repeat_directive">repeat_directive</a></code></code> that repeats between <code class="computeroutput">min_</code> and <code class="computeroutput">max_</code> times, inclusive, and whose <code class="computeroutput">operator[]</code> returns an <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code>&lt;<code class="computeroutput"><a class="link" href="repeat_parser.html" title="Struct template repeat_parser">repeat_parser</a></code>&lt;P&gt;&gt;</code> from a given parser of type <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code>&lt;P&gt;</code>. </p>
+<a name="idm34425"></a><h2>Description</h2>
+<p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="repeat_directive.html" title="Struct template repeat_directive">repeat_directive</a></code></code> that repeats between <code class="computeroutput">min_</code> and <code class="computeroutput">max_</code> times, inclusive, and whose <code class="computeroutput">operator[]</code> returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code>&lt;<code class="computeroutput"><a class="link" href="repeat_parser.html" title="Struct template repeat_parser">repeat_parser</a></code>&lt;P&gt;&gt;</code> from a given parser of type <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code>&lt;P&gt;</code>. </p>
 </div>
 </div>
 <div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
@@ -39,7 +39,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="repeat_idm22092.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="attr.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="repeat_idm22441.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="attr.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/repeat_parser.html b/doc/html/boost/parser/repeat_parser.html
index 8a06ebd6..03a45611 100644
--- a/doc/html/boost/parser/repeat_parser.html
+++ b/doc/html/boost/parser/repeat_parser.html
@@ -27,16 +27,16 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
          <span class="keyword">typename</span> MaxType<span class="special">&gt;</span> 
 <span class="keyword">struct</span> <a class="link" href="repeat_parser.html" title="Struct template repeat_parser">repeat_parser</a> <span class="special">{</span>
   <span class="comment">// <a class="link" href="repeat_parser.html#boost.parser.repeat_parserconstruct-copy-destruct">construct/copy/destruct</a></span>
-  <a class="link" href="repeat_parser.html#idm20579-bb"><span class="identifier">repeat_parser</span></a><span class="special">(</span><span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">MinType</span><span class="special">,</span> <span class="identifier">MaxType</span><span class="special">,</span> <span class="identifier">DelimiterParser</span> <span class="special">=</span> <span class="identifier">DelimiterParser</span><span class="special">{</span><span class="special">}</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="repeat_parser.html#idm20863-bb"><span class="identifier">repeat_parser</span></a><span class="special">(</span><span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">MinType</span><span class="special">,</span> <span class="identifier">MaxType</span><span class="special">,</span> <span class="identifier">DelimiterParser</span> <span class="special">=</span> <span class="identifier">DelimiterParser</span><span class="special">{</span><span class="special">}</span><span class="special">)</span><span class="special">;</span>
 
-  <span class="comment">// <a class="link" href="repeat_parser.html#idm20527-bb">public member functions</a></span>
+  <span class="comment">// <a class="link" href="repeat_parser.html#idm20811-bb">public member functions</a></span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-    <span class="keyword">auto</span> <a class="link" href="repeat_parser.html#idm20528-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">auto</span> <a class="link" href="repeat_parser.html#idm20812-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="repeat_parser.html#idm20552-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">void</span> <a class="link" href="repeat_parser.html#idm20836-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">,</span> 
               <span class="identifier">Attribute</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
 
@@ -47,28 +47,28 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
   <span class="identifier">MaxType</span> <span class="identifier">max_</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm29190"></a><h2>Description</h2>
+<a name="idm29513"></a><h2>Description</h2>
 <p>Repeats the application of another parser <code class="computeroutput">p</code> of type <code class="computeroutput">Parser</code>, optionally applying another parser <code class="computeroutput">d</code> of type <code class="computeroutput">DelimiterParser</code> in between each pair of applications of <code class="computeroutput">p</code>. The parse succeeds if <code class="computeroutput">p</code> succeeds at least the minumum number of times, and <code class="computeroutput">d</code> succeeds each time it is applied. The attribute produced is a sequence of the type of attribute produced by <code class="computeroutput">Parser</code>. </p>
 <div class="refsect2">
-<a name="idm29201"></a><h3>
+<a name="idm29524"></a><h3>
 <a name="boost.parser.repeat_parserconstruct-copy-destruct"></a><code class="computeroutput">repeat_parser</code> 
         public
        construct/copy/destruct</h3>
-<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><a name="idm20579-bb"></a><span class="identifier">repeat_parser</span><span class="special">(</span><span class="identifier">Parser</span> parser<span class="special">,</span> <span class="identifier">MinType</span> _min<span class="special">,</span> <span class="identifier">MaxType</span> _max<span class="special">,</span> 
+<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><a name="idm20863-bb"></a><span class="identifier">repeat_parser</span><span class="special">(</span><span class="identifier">Parser</span> parser<span class="special">,</span> <span class="identifier">MinType</span> _min<span class="special">,</span> <span class="identifier">MaxType</span> _max<span class="special">,</span> 
               <span class="identifier">DelimiterParser</span> delimiter_parser <span class="special">=</span> <span class="identifier">DelimiterParser</span><span class="special">{</span><span class="special">}</span><span class="special">)</span><span class="special">;</span></pre></li></ol></div>
 </div>
 <div class="refsect2">
-<a name="idm29225"></a><h3>
-<a name="idm20527-bb"></a><code class="computeroutput">repeat_parser</code> public member functions</h3>
+<a name="idm29548"></a><h3>
+<a name="idm20811-bb"></a><code class="computeroutput">repeat_parser</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-  <span class="keyword">auto</span> <a name="idm20528-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="keyword">auto</span> <a name="idm20812-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm20552-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="keyword">void</span> <a name="idm20836-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">,</span> <span class="identifier">Attribute</span> <span class="special">&amp;</span> retval<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 </ol></div>
diff --git a/doc/html/boost/parser/report_error_idm22007.html b/doc/html/boost/parser/report_error_idm22007.html
deleted file mode 100644
index b772a26f..00000000
--- a/doc/html/boost/parser/report_error_idm22007.html
+++ /dev/null
@@ -1,44 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template _report_error</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="_error_handler.html" title="Function template _error_handler">
-<link rel="next" href="report_warning_idm22019.html" title="Function template _report_warning">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="report_warning_idm22019.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.report_error_idm22007"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template _report_error</span></h2>
-<p>boost::parser::_report_error</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <span class="identifier">_report_error</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm33770"></a><h2>Description</h2>
-<p>Report that the error described in <code class="computeroutput">message</code> occurred at <code class="computeroutput">_where(context).begin()</code>, using the context's error handler. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="report_warning_idm22019.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/report_error_idm22009.html b/doc/html/boost/parser/report_error_idm22009.html
deleted file mode 100644
index 8c4ae9d8..00000000
--- a/doc/html/boost/parser/report_error_idm22009.html
+++ /dev/null
@@ -1,44 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template _report_error</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="_error_handler.html" title="Function template _error_handler">
-<link rel="next" href="report_warning_idm22021.html" title="Function template _report_warning">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="report_warning_idm22021.html"><img src="../../images/next.png" alt="Next"></a>
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-<div class="refentry">
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-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template _report_error</span></h2>
-<p>boost::parser::_report_error</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <span class="identifier">_report_error</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm33772"></a><h2>Description</h2>
-<p>Report that the error described in <code class="computeroutput">message</code> occurred at <code class="computeroutput">_where(context).begin()</code>, using the context's error handler. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
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diff --git a/doc/html/boost/parser/report_error_idm22010.html b/doc/html/boost/parser/report_error_idm22010.html
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-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template _report_error</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
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-</div>
-<div class="refentry">
-<a name="boost.parser.report_error_idm22010"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template _report_error</span></h2>
-<p>boost::parser::_report_error</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <span class="identifier">_report_error</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm33773"></a><h2>Description</h2>
-<p>Report that the error described in <code class="computeroutput">message</code> occurred at <code class="computeroutput">_where(context).begin()</code>, using the context's error handler. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
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diff --git a/doc/html/boost/parser/report_error_idm22011.html b/doc/html/boost/parser/report_error_idm22011.html
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-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template _report_error</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
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-</div>
-<div class="refentry">
-<a name="boost.parser.report_error_idm22011"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template _report_error</span></h2>
-<p>boost::parser::_report_error</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <span class="identifier">_report_error</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm33773"></a><h2>Description</h2>
-<p>Report that the error described in <code class="computeroutput">message</code> occurred at <code class="computeroutput">_where(context).begin()</code>, using the context's error handler. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="report_warning_idm22023.html"><img src="../../images/next.png" alt="Next"></a>
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-</body>
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diff --git a/doc/html/boost/parser/report_error_idm22027.html b/doc/html/boost/parser/report_error_idm22027.html
deleted file mode 100644
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--- a/doc/html/boost/parser/report_error_idm22027.html
+++ /dev/null
@@ -1,44 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template _report_error</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
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-</div>
-<div class="refentry">
-<a name="boost.parser.report_error_idm22027"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template _report_error</span></h2>
-<p>boost::parser::_report_error</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <span class="identifier">_report_error</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm33789"></a><h2>Description</h2>
-<p>Report that the error described in <code class="computeroutput">message</code> occurred at <code class="computeroutput">_where(context).begin()</code>, using the context's error handler. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="report_warning_idm22039.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/report_error_idm22005.html b/doc/html/boost/parser/report_error_idm22354.html
similarity index 91%
rename from doc/html/boost/parser/report_error_idm22005.html
rename to doc/html/boost/parser/report_error_idm22354.html
index 28a27b7e..fdeb22aa 100644
--- a/doc/html/boost/parser/report_error_idm22005.html
+++ b/doc/html/boost/parser/report_error_idm22354.html
@@ -7,15 +7,15 @@
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 <link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
 <link rel="prev" href="_error_handler.html" title="Function template _error_handler">
-<link rel="next" href="report_warning_idm22017.html" title="Function template _report_warning">
+<link rel="next" href="report_warning_idm22366.html" title="Function template _report_warning">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="report_warning_idm22017.html"><img src="../../images/next.png" alt="Next"></a>
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 </div>
 <div class="refentry">
-<a name="boost.parser.report_error_idm22005"></a><div class="titlepage"></div>
+<a name="boost.parser.report_error_idm22354"></a><div class="titlepage"></div>
 <div class="refnamediv">
 <h2><span class="refentrytitle">Function template _report_error</span></h2>
 <p>boost::parser::_report_error</p>
@@ -27,7 +27,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> 
   <span class="keyword">void</span> <span class="identifier">_report_error</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">)</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm33768"></a><h2>Description</h2>
+<a name="idm34232"></a><h2>Description</h2>
 <p>Report that the error described in <code class="computeroutput">message</code> occurred at <code class="computeroutput">_where(context).begin()</code>, using the context's error handler. </p>
 </div>
 </div>
@@ -38,7 +38,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="report_warning_idm22017.html"><img src="../../images/next.png" alt="Next"></a>
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diff --git a/doc/html/boost/parser/report_error_idm22857.html b/doc/html/boost/parser/report_error_idm22857.html
deleted file mode 100644
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--- a/doc/html/boost/parser/report_error_idm22857.html
+++ /dev/null
@@ -1,45 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template _report_error</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
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-</div>
-<div class="refentry">
-<a name="boost.parser.report_error_idm22857"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template _report_error</span></h2>
-<p>boost::parser::_report_error</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_fwd_hpp.html" title="Header &lt;boost/parser/parser_fwd.hpp&gt;">boost/parser/parser_fwd.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <span class="identifier">_report_error</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
-                     <span class="identifier">Iter</span> location<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35947"></a><h2>Description</h2>
-<p>Report that the error described in <code class="computeroutput">message</code> occurred at <code class="computeroutput">location</code>, using the context's error handler. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="null_sentinel_t.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="report_warning_idm22872.html"><img src="../../images/next.png" alt="Next"></a>
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diff --git a/doc/html/boost/parser/report_error_idm22859.html b/doc/html/boost/parser/report_error_idm22859.html
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-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
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-<div class="refentry">
-<a name="boost.parser.report_error_idm22859"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template _report_error</span></h2>
-<p>boost::parser::_report_error</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_fwd_hpp.html" title="Header &lt;boost/parser/parser_fwd.hpp&gt;">boost/parser/parser_fwd.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <span class="identifier">_report_error</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
-                     <span class="identifier">Iter</span> location<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35949"></a><h2>Description</h2>
-<p>Report that the error described in <code class="computeroutput">message</code> occurred at <code class="computeroutput">location</code>, using the context's error handler. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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diff --git a/doc/html/boost/parser/report_error_idm22860.html b/doc/html/boost/parser/report_error_idm22860.html
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-<div class="refentry">
-<a name="boost.parser.report_error_idm22860"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template _report_error</span></h2>
-<p>boost::parser::_report_error</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_fwd_hpp.html" title="Header &lt;boost/parser/parser_fwd.hpp&gt;">boost/parser/parser_fwd.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <span class="identifier">_report_error</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
-                     <span class="identifier">Iter</span> location<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35950"></a><h2>Description</h2>
-<p>Report that the error described in <code class="computeroutput">message</code> occurred at <code class="computeroutput">location</code>, using the context's error handler. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
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diff --git a/doc/html/boost/parser/report_error_idm22861.html b/doc/html/boost/parser/report_error_idm22861.html
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-<div class="refentry">
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-<h2><span class="refentrytitle">Function template _report_error</span></h2>
-<p>boost::parser::_report_error</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_fwd_hpp.html" title="Header &lt;boost/parser/parser_fwd.hpp&gt;">boost/parser/parser_fwd.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <span class="identifier">_report_error</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
-                     <span class="identifier">Iter</span> location<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35950"></a><h2>Description</h2>
-<p>Report that the error described in <code class="computeroutput">message</code> occurred at <code class="computeroutput">location</code>, using the context's error handler. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="null_sentinel_t.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="report_warning_idm22876.html"><img src="../../images/next.png" alt="Next"></a>
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diff --git a/doc/html/boost/parser/report_error_idm22877.html b/doc/html/boost/parser/report_error_idm22877.html
deleted file mode 100644
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+++ /dev/null
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-<html>
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-<div class="refentry">
-<a name="boost.parser.report_error_idm22877"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template _report_error</span></h2>
-<p>boost::parser::_report_error</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_fwd_hpp.html" title="Header &lt;boost/parser/parser_fwd.hpp&gt;">boost/parser/parser_fwd.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <span class="identifier">_report_error</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
-                     <span class="identifier">Iter</span> location<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35966"></a><h2>Description</h2>
-<p>Report that the error described in <code class="computeroutput">message</code> occurred at <code class="computeroutput">location</code>, using the context's error handler. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
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-<a accesskey="p" href="null_sentinel_t.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="report_warning_idm22892.html"><img src="../../images/next.png" alt="Next"></a>
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-</body>
-</html>
diff --git a/doc/html/boost/parser/report_error_idm22855.html b/doc/html/boost/parser/report_error_idm23209.html
similarity index 85%
rename from doc/html/boost/parser/report_error_idm22855.html
rename to doc/html/boost/parser/report_error_idm23209.html
index f0d0973e..bfe8dd48 100644
--- a/doc/html/boost/parser/report_error_idm22855.html
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-<link rel="prev" href="null_sentinel_t.html" title="Type definition null_sentinel_t">
-<link rel="next" href="report_warning_idm22870.html" title="Function template _report_warning">
+<link rel="prev" href="enable_optional.html" title="Global enable_optional">
+<link rel="next" href="report_warning_idm23224.html" title="Function template _report_warning">
 <meta name="viewport" content="width=device-width, initial-scale=1">
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+<a accesskey="p" href="enable_optional.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="report_warning_idm23224.html"><img src="../../images/next.png" alt="Next"></a>
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 <div class="refnamediv">
 <h2><span class="refentrytitle">Function template _report_error</span></h2>
 <p>boost::parser::_report_error</p>
@@ -28,7 +28,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
   <span class="keyword">void</span> <span class="identifier">_report_error</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
                      <span class="identifier">Iter</span> location<span class="special">)</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm35945"></a><h2>Description</h2>
+<a name="idm36431"></a><h2>Description</h2>
 <p>Report that the error described in <code class="computeroutput">message</code> occurred at <code class="computeroutput">location</code>, using the context's error handler. </p>
 </div>
 </div>
@@ -39,7 +39,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
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diff --git a/doc/html/boost/parser/report_warning_idm22019.html b/doc/html/boost/parser/report_warning_idm22019.html
deleted file mode 100644
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-<title>Function template _report_warning</title>
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-</div>
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-<a name="boost.parser.report_warning_idm22019"></a><div class="titlepage"></div>
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-<h2><span class="refentrytitle">Function template _report_warning</span></h2>
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-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <span class="identifier">_report_warning</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm33802"></a><h2>Description</h2>
-<p>Report that the warning described in <code class="computeroutput">message</code> occurred at <code class="computeroutput">_where(context).begin()</code>, using the context's error handler. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
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diff --git a/doc/html/boost/parser/report_warning_idm22021.html b/doc/html/boost/parser/report_warning_idm22021.html
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-<h2><span class="refentrytitle">Function template _report_warning</span></h2>
-<p>boost::parser::_report_warning</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <span class="identifier">_report_warning</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm33804"></a><h2>Description</h2>
-<p>Report that the warning described in <code class="computeroutput">message</code> occurred at <code class="computeroutput">_where(context).begin()</code>, using the context's error handler. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
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diff --git a/doc/html/boost/parser/report_warning_idm22022.html b/doc/html/boost/parser/report_warning_idm22022.html
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-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template _report_warning</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
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-</div>
-<div class="refentry">
-<a name="boost.parser.report_warning_idm22022"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template _report_warning</span></h2>
-<p>boost::parser::_report_warning</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <span class="identifier">_report_warning</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm33805"></a><h2>Description</h2>
-<p>Report that the warning described in <code class="computeroutput">message</code> occurred at <code class="computeroutput">_where(context).begin()</code>, using the context's error handler. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="report_error_idm22010.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="with_globals.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/report_warning_idm22023.html b/doc/html/boost/parser/report_warning_idm22023.html
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-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template _report_warning</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
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-</div>
-<div class="refentry">
-<a name="boost.parser.report_warning_idm22023"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template _report_warning</span></h2>
-<p>boost::parser::_report_warning</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <span class="identifier">_report_warning</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm33805"></a><h2>Description</h2>
-<p>Report that the warning described in <code class="computeroutput">message</code> occurred at <code class="computeroutput">_where(context).begin()</code>, using the context's error handler. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="report_error_idm22011.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="with_globals.html"><img src="../../images/next.png" alt="Next"></a>
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-</body>
-</html>
diff --git a/doc/html/boost/parser/report_warning_idm22039.html b/doc/html/boost/parser/report_warning_idm22039.html
deleted file mode 100644
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-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template _report_warning</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
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-</div>
-<div class="refentry">
-<a name="boost.parser.report_warning_idm22039"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template _report_warning</span></h2>
-<p>boost::parser::_report_warning</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <span class="identifier">_report_warning</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm33821"></a><h2>Description</h2>
-<p>Report that the warning described in <code class="computeroutput">message</code> occurred at <code class="computeroutput">_where(context).begin()</code>, using the context's error handler. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="report_error_idm22027.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="with_globals.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/report_warning_idm22017.html b/doc/html/boost/parser/report_warning_idm22366.html
similarity index 91%
rename from doc/html/boost/parser/report_warning_idm22017.html
rename to doc/html/boost/parser/report_warning_idm22366.html
index 9c1455a4..ddf18ee7 100644
--- a/doc/html/boost/parser/report_warning_idm22017.html
+++ b/doc/html/boost/parser/report_warning_idm22366.html
@@ -6,16 +6,16 @@
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-<link rel="prev" href="report_error_idm22005.html" title="Function template _report_error">
+<link rel="prev" href="report_error_idm22354.html" title="Function template _report_error">
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 <meta name="viewport" content="width=device-width, initial-scale=1">
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 </div>
 <div class="refentry">
-<a name="boost.parser.report_warning_idm22017"></a><div class="titlepage"></div>
+<a name="boost.parser.report_warning_idm22366"></a><div class="titlepage"></div>
 <div class="refnamediv">
 <h2><span class="refentrytitle">Function template _report_warning</span></h2>
 <p>boost::parser::_report_warning</p>
@@ -27,7 +27,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> 
   <span class="keyword">void</span> <span class="identifier">_report_warning</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">)</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm33800"></a><h2>Description</h2>
+<a name="idm34264"></a><h2>Description</h2>
 <p>Report that the warning described in <code class="computeroutput">message</code> occurred at <code class="computeroutput">_where(context).begin()</code>, using the context's error handler. </p>
 </div>
 </div>
@@ -38,7 +38,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="report_error_idm22005.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="with_globals.html"><img src="../../images/next.png" alt="Next"></a>
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 </html>
diff --git a/doc/html/boost/parser/report_warning_idm22872.html b/doc/html/boost/parser/report_warning_idm22872.html
deleted file mode 100644
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+++ /dev/null
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-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template _report_warning</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
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-<div class="refentry">
-<a name="boost.parser.report_warning_idm22872"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template _report_warning</span></h2>
-<p>boost::parser::_report_warning</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_fwd_hpp.html" title="Header &lt;boost/parser/parser_fwd.hpp&gt;">boost/parser/parser_fwd.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <span class="identifier">_report_warning</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
-                       <span class="identifier">Iter</span> location<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35983"></a><h2>Description</h2>
-<p>Report that the warning described in <code class="computeroutput">message</code> occurred at <code class="computeroutput">location</code>, using the context's error handler. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="report_error_idm22857.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="../../header/boost/parser/subrange_hpp.html"><img src="../../images/next.png" alt="Next"></a>
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diff --git a/doc/html/boost/parser/report_warning_idm22874.html b/doc/html/boost/parser/report_warning_idm22874.html
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-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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-</div>
-<div class="refentry">
-<a name="boost.parser.report_warning_idm22874"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template _report_warning</span></h2>
-<p>boost::parser::_report_warning</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_fwd_hpp.html" title="Header &lt;boost/parser/parser_fwd.hpp&gt;">boost/parser/parser_fwd.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <span class="identifier">_report_warning</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
-                       <span class="identifier">Iter</span> location<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35985"></a><h2>Description</h2>
-<p>Report that the warning described in <code class="computeroutput">message</code> occurred at <code class="computeroutput">location</code>, using the context's error handler. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="report_error_idm22859.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="../../header/boost/parser/subrange_hpp.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/report_warning_idm22875.html b/doc/html/boost/parser/report_warning_idm22875.html
deleted file mode 100644
index 3b995ce4..00000000
--- a/doc/html/boost/parser/report_warning_idm22875.html
+++ /dev/null
@@ -1,45 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template _report_warning</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/parser_fwd_hpp.html" title="Header &lt;boost/parser/parser_fwd.hpp&gt;">
-<link rel="prev" href="report_error_idm22860.html" title="Function template _report_error">
-<link rel="next" href="../../header/boost/parser/subrange_hpp.html" title="Header &lt;boost/parser/subrange.hpp&gt;">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="report_error_idm22860.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="../../header/boost/parser/subrange_hpp.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.report_warning_idm22875"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template _report_warning</span></h2>
-<p>boost::parser::_report_warning</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_fwd_hpp.html" title="Header &lt;boost/parser/parser_fwd.hpp&gt;">boost/parser/parser_fwd.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <span class="identifier">_report_warning</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
-                       <span class="identifier">Iter</span> location<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35986"></a><h2>Description</h2>
-<p>Report that the warning described in <code class="computeroutput">message</code> occurred at <code class="computeroutput">location</code>, using the context's error handler. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="report_error_idm22860.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="../../header/boost/parser/subrange_hpp.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/report_warning_idm22876.html b/doc/html/boost/parser/report_warning_idm22876.html
deleted file mode 100644
index 4faacdae..00000000
--- a/doc/html/boost/parser/report_warning_idm22876.html
+++ /dev/null
@@ -1,45 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template _report_warning</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/parser_fwd_hpp.html" title="Header &lt;boost/parser/parser_fwd.hpp&gt;">
-<link rel="prev" href="report_error_idm22861.html" title="Function template _report_error">
-<link rel="next" href="../../header/boost/parser/subrange_hpp.html" title="Header &lt;boost/parser/subrange.hpp&gt;">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="report_error_idm22861.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="../../header/boost/parser/subrange_hpp.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.report_warning_idm22876"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template _report_warning</span></h2>
-<p>boost::parser::_report_warning</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_fwd_hpp.html" title="Header &lt;boost/parser/parser_fwd.hpp&gt;">boost/parser/parser_fwd.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <span class="identifier">_report_warning</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
-                       <span class="identifier">Iter</span> location<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm35986"></a><h2>Description</h2>
-<p>Report that the warning described in <code class="computeroutput">message</code> occurred at <code class="computeroutput">location</code>, using the context's error handler. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="report_error_idm22861.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="../../header/boost/parser/subrange_hpp.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/report_warning_idm22892.html b/doc/html/boost/parser/report_warning_idm22892.html
deleted file mode 100644
index 6be2ad0c..00000000
--- a/doc/html/boost/parser/report_warning_idm22892.html
+++ /dev/null
@@ -1,45 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template _report_warning</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/parser_fwd_hpp.html" title="Header &lt;boost/parser/parser_fwd.hpp&gt;">
-<link rel="prev" href="report_error_idm22877.html" title="Function template _report_error">
-<link rel="next" href="../../header/boost/parser/subrange_hpp.html" title="Header &lt;boost/parser/subrange.hpp&gt;">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="report_error_idm22877.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="../../header/boost/parser/subrange_hpp.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.report_warning_idm22892"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template _report_warning</span></h2>
-<p>boost::parser::_report_warning</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_fwd_hpp.html" title="Header &lt;boost/parser/parser_fwd.hpp&gt;">boost/parser/parser_fwd.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <span class="identifier">_report_warning</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
-                       <span class="identifier">Iter</span> location<span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm36002"></a><h2>Description</h2>
-<p>Report that the warning described in <code class="computeroutput">message</code> occurred at <code class="computeroutput">location</code>, using the context's error handler. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="report_error_idm22877.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="../../header/boost/parser/subrange_hpp.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/report_warning_idm22870.html b/doc/html/boost/parser/report_warning_idm23224.html
similarity index 91%
rename from doc/html/boost/parser/report_warning_idm22870.html
rename to doc/html/boost/parser/report_warning_idm23224.html
index 12a8dbd3..498ea680 100644
--- a/doc/html/boost/parser/report_warning_idm22870.html
+++ b/doc/html/boost/parser/report_warning_idm23224.html
@@ -6,16 +6,16 @@
 <meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
 <link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../header/boost/parser/parser_fwd_hpp.html" title="Header &lt;boost/parser/parser_fwd.hpp&gt;">
-<link rel="prev" href="report_error_idm22855.html" title="Function template _report_error">
+<link rel="prev" href="report_error_idm23209.html" title="Function template _report_error">
 <link rel="next" href="../../header/boost/parser/subrange_hpp.html" title="Header &lt;boost/parser/subrange.hpp&gt;">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="report_error_idm22855.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="../../header/boost/parser/subrange_hpp.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="report_error_idm23209.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="../../header/boost/parser/subrange_hpp.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
-<a name="boost.parser.report_warning_idm22870"></a><div class="titlepage"></div>
+<a name="boost.parser.report_warning_idm23224"></a><div class="titlepage"></div>
 <div class="refnamediv">
 <h2><span class="refentrytitle">Function template _report_warning</span></h2>
 <p>boost::parser::_report_warning</p>
@@ -28,7 +28,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
   <span class="keyword">void</span> <span class="identifier">_report_warning</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
                        <span class="identifier">Iter</span> location<span class="special">)</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm35981"></a><h2>Description</h2>
+<a name="idm36467"></a><h2>Description</h2>
 <p>Report that the warning described in <code class="computeroutput">message</code> occurred at <code class="computeroutput">location</code>, using the context's error handler. </p>
 </div>
 </div>
@@ -39,7 +39,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="report_error_idm22855.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="../../header/boost/parser/subrange_hpp.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="report_error_idm23209.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="../../header/boost/parser/subrange_hpp.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/rethrow_error_handler.html b/doc/html/boost/parser/rethrow_error_handler.html
index c8ca08b8..42e0b11e 100644
--- a/doc/html/boost/parser/rethrow_error_handler.html
+++ b/doc/html/boost/parser/rethrow_error_handler.html
@@ -7,12 +7,12 @@
 <link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../header/boost/parser/error_handling_hpp.html" title="Header &lt;boost/parser/error_handling.hpp&gt;">
 <link rel="prev" href="callback_error_handler.html" title="Struct callback_error_handler">
-<link rel="next" href="write_formatted_m_idm18323.html" title="Function template write_formatted_message">
+<link rel="next" href="write_formatted_m_idm18593.html" title="Function template write_formatted_message">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="callback_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="write_formatted_m_idm18323.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="callback_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="write_formatted_m_idm18593.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
 <a name="boost.parser.rethrow_error_handler"></a><div class="titlepage"></div>
@@ -26,30 +26,30 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span>
 <span class="keyword">struct</span> <a class="link" href="rethrow_error_handler.html" title="Struct rethrow_error_handler">rethrow_error_handler</a> <span class="special">{</span>
 
-  <span class="comment">// <a class="link" href="rethrow_error_handler.html#idm18287-bb">public member functions</a></span>
+  <span class="comment">// <a class="link" href="rethrow_error_handler.html#idm18557-bb">public member functions</a></span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">&gt;</span> 
     <span class="identifier">error_handler_result</span> 
-    <a class="link" href="rethrow_error_handler.html#idm18288-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">Iter</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> <a class="link" href="parse_error.html" title="Struct template parse_error">parse_error</a><span class="special">&lt;</span> <span class="identifier">Iter</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+    <a class="link" href="rethrow_error_handler.html#idm18558-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">Iter</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> <a class="link" href="parse_error.html" title="Struct template parse_error">parse_error</a><span class="special">&lt;</span> <span class="identifier">Iter</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="rethrow_error_handler.html#idm18300-bb"><span class="identifier">diagnose</span></a><span class="special">(</span><span class="identifier">diagnostic_kind</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Iter</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+    <span class="keyword">void</span> <a class="link" href="rethrow_error_handler.html#idm18570-bb"><span class="identifier">diagnose</span></a><span class="special">(</span><span class="identifier">diagnostic_kind</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Iter</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="rethrow_error_handler.html#idm18313-bb"><span class="identifier">diagnose</span></a><span class="special">(</span><span class="identifier">diagnostic_kind</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+    <span class="keyword">void</span> <a class="link" href="rethrow_error_handler.html#idm18583-bb"><span class="identifier">diagnose</span></a><span class="special">(</span><span class="identifier">diagnostic_kind</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm17839"></a><h2>Description</h2>
+<a name="idm18065"></a><h2>Description</h2>
 <p>An error handler that just re-throws any exception generated by the parse. </p>
 <div class="refsect2">
-<a name="idm17842"></a><h3>
-<a name="idm18287-bb"></a><code class="computeroutput">rethrow_error_handler</code> public member functions</h3>
+<a name="idm18068"></a><h3>
+<a name="idm18557-bb"></a><code class="computeroutput">rethrow_error_handler</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">&gt;</span> 
   <span class="identifier">error_handler_result</span> 
-  <a name="idm18288-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">Iter</span> first<span class="special">,</span> <span class="identifier">Sentinel</span> last<span class="special">,</span> <a class="link" href="parse_error.html" title="Struct template parse_error">parse_error</a><span class="special">&lt;</span> <span class="identifier">Iter</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> e<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+  <a name="idm18558-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">Iter</span> first<span class="special">,</span> <span class="identifier">Sentinel</span> last<span class="special">,</span> <a class="link" href="parse_error.html" title="Struct template parse_error">parse_error</a><span class="special">&lt;</span> <span class="identifier">Iter</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> e<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm18300-bb"></a><span class="identifier">diagnose</span><span class="special">(</span><span class="identifier">diagnostic_kind</span> kind<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
+  <span class="keyword">void</span> <a name="idm18570-bb"></a><span class="identifier">diagnose</span><span class="special">(</span><span class="identifier">diagnostic_kind</span> kind<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
                 <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">Iter</span> it<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm18313-bb"></a><span class="identifier">diagnose</span><span class="special">(</span><span class="identifier">diagnostic_kind</span> kind<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
+  <span class="keyword">void</span> <a name="idm18583-bb"></a><span class="identifier">diagnose</span><span class="special">(</span><span class="identifier">diagnostic_kind</span> kind<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
                 <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 </ol></div>
 </div>
@@ -62,7 +62,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="callback_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="write_formatted_m_idm18323.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="callback_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="write_formatted_m_idm18593.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/rule.html b/doc/html/boost/parser/rule.html
index 865b3755..e2479314 100644
--- a/doc/html/boost/parser/rule.html
+++ b/doc/html/boost/parser/rule.html
@@ -28,27 +28,27 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 <span class="keyword">struct</span> <a class="link" href="rule.html" title="Struct template rule">rule</a> <span class="special">:</span> <span class="keyword">public</span> boost::parser::parser_interface&lt; rule_parser&lt; false, TagType, Attribute, LocalState, ParamsTuple &gt; &gt;
 <span class="special">{</span>
   <span class="comment">// <a class="link" href="rule.html#boost.parser.ruleconstruct-copy-destruct">construct/copy/destruct</a></span>
-  <a class="link" href="rule.html#idm20613-bb"><span class="identifier">rule</span></a><span class="special">(</span><span class="keyword">char</span> <span class="keyword">const</span> <span class="special">*</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="rule.html#idm20897-bb"><span class="identifier">rule</span></a><span class="special">(</span><span class="keyword">char</span> <span class="keyword">const</span> <span class="special">*</span><span class="special">)</span><span class="special">;</span>
 
-  <span class="comment">// <a class="link" href="rule.html#idm20602-bb">public member functions</a></span>
+  <span class="comment">// <a class="link" href="rule.html#idm20886-bb">public member functions</a></span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span><span class="special">...</span> Ts<span class="special">&gt;</span> 
-    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="rule.html#idm20603-bb"><span class="identifier">with</span></a><span class="special">(</span><span class="identifier">T</span> <span class="special">&amp;&amp;</span><span class="special">,</span> <span class="identifier">Ts</span> <span class="special">&amp;&amp;</span><span class="special">...</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="rule.html#idm20887-bb"><span class="identifier">with</span></a><span class="special">(</span><span class="identifier">T</span> <span class="special">&amp;&amp;</span><span class="special">,</span> <span class="identifier">Ts</span> <span class="special">&amp;&amp;</span><span class="special">...</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm29390"></a><h2>Description</h2>
+<a name="idm29713"></a><h2>Description</h2>
 <p>A type used to declare named parsing rules. The <code class="computeroutput">TagType</code> template parameter is used to associate a particular <code class="computeroutput">rule</code> with the <code class="computeroutput"><a class="link" href="rule_parser.html" title="Struct template rule_parser">rule_parser</a></code> used during parsing. </p>
 <div class="refsect2">
-<a name="idm29397"></a><h3>
+<a name="idm29720"></a><h3>
 <a name="boost.parser.ruleconstruct-copy-destruct"></a><code class="computeroutput">rule</code> 
         public
        construct/copy/destruct</h3>
-<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><a name="idm20613-bb"></a><span class="identifier">rule</span><span class="special">(</span><span class="keyword">char</span> <span class="keyword">const</span> <span class="special">*</span> name<span class="special">)</span><span class="special">;</span></pre></li></ol></div>
+<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><a name="idm20897-bb"></a><span class="identifier">rule</span><span class="special">(</span><span class="keyword">char</span> <span class="keyword">const</span> <span class="special">*</span> name<span class="special">)</span><span class="special">;</span></pre></li></ol></div>
 </div>
 <div class="refsect2">
-<a name="idm29413"></a><h3>
-<a name="idm20602-bb"></a><code class="computeroutput">rule</code> public member functions</h3>
+<a name="idm29736"></a><h3>
+<a name="idm20886-bb"></a><code class="computeroutput">rule</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span><span class="special">...</span> Ts<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20603-bb"></a><span class="identifier">with</span><span class="special">(</span><span class="identifier">T</span> <span class="special">&amp;&amp;</span> x<span class="special">,</span> <span class="identifier">Ts</span> <span class="special">&amp;&amp;</span><span class="special">...</span> xs<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li></ol></div>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20887-bb"></a><span class="identifier">with</span><span class="special">(</span><span class="identifier">T</span> <span class="special">&amp;&amp;</span> x<span class="special">,</span> <span class="identifier">Ts</span> <span class="special">&amp;&amp;</span><span class="special">...</span> xs<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li></ol></div>
 </div>
 </div>
 </div>
diff --git a/doc/html/boost/parser/rule_parser.html b/doc/html/boost/parser/rule_parser.html
index acbd156b..87bba487 100644
--- a/doc/html/boost/parser/rule_parser.html
+++ b/doc/html/boost/parser/rule_parser.html
@@ -7,12 +7,12 @@
 <link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
 <link rel="prev" href="rule.html" title="Struct template rule">
-<link rel="next" href="seq_parser.html" title="Struct template seq_parser">
+<link rel="next" href="separate_directive.html" title="Struct separate_directive">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="rule.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="seq_parser.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="rule.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="separate_directive.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
 <a name="boost.parser.rule_parser"></a><div class="titlepage"></div>
@@ -31,14 +31,14 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
   <span class="keyword">typedef</span> <span class="identifier">Attribute</span>  <a name="boost.parser.rule_parser.attr_type"></a><span class="identifier">attr_type</span><span class="special">;</span>  
   <span class="keyword">typedef</span> <span class="identifier">LocalState</span> <a name="boost.parser.rule_parser.locals_type"></a><span class="identifier">locals_type</span><span class="special">;</span>
 
-  <span class="comment">// <a class="link" href="rule_parser.html#idm20646-bb">public member functions</a></span>
+  <span class="comment">// <a class="link" href="rule_parser.html#idm20930-bb">public member functions</a></span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-    <span class="keyword">auto</span> <a class="link" href="rule_parser.html#idm20647-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">auto</span> <a class="link" href="rule_parser.html#idm20931-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute_<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="rule_parser.html#idm20671-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">void</span> <a class="link" href="rule_parser.html#idm20955-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">,</span> 
               <span class="identifier">Attribute_</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
 
@@ -47,20 +47,20 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
   <span class="identifier">ParamsTuple</span> <span class="identifier">params_</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm29590"></a><h2>Description</h2>
+<a name="idm29913"></a><h2>Description</h2>
 <p>Applies another parser <code class="computeroutput">p</code>, associated with this parser via <code class="computeroutput">TagType</code>. The attribute produced is <code class="computeroutput">Attribute</code>. Both a default-constructed object of type <code class="computeroutput">LocalState</code>, and a default-constructed object of type <code class="computeroutput">ParamsTuple</code>, are added to the parse context before the associated parser is applied. The parse succeeds iff <code class="computeroutput">p</code> succeeds. If <code class="computeroutput">CanUseCallbacks</code> is <code class="computeroutput">true</code>, and within a call to <code class="computeroutput">callback_parse()</code>, the attribute is produced via callback; otherwise, the attribute is produced as normal (as a return value, or as an out-param). The rule may be constructed with a user-friendly name that will appear if the top-level parse is executed with <code class="computeroutput">trace_mode == boost::parser::trace::on</code>. </p>
 <div class="refsect2">
-<a name="idm29603"></a><h3>
-<a name="idm20646-bb"></a><code class="computeroutput">rule_parser</code> public member functions</h3>
+<a name="idm29926"></a><h3>
+<a name="idm20930-bb"></a><code class="computeroutput">rule_parser</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-  <span class="keyword">auto</span> <a name="idm20647-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="keyword">auto</span> <a name="idm20931-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute_<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm20671-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="keyword">void</span> <a name="idm20955-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">,</span> <span class="identifier">Attribute_</span> <span class="special">&amp;</span> retval<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 </ol></div>
@@ -74,7 +74,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="rule.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="seq_parser.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="rule.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="separate_directive.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/separate.html b/doc/html/boost/parser/separate.html
new file mode 100644
index 00000000..565f3d50
--- /dev/null
+++ b/doc/html/boost/parser/separate.html
@@ -0,0 +1,42 @@
+<html>
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+<title>Global separate</title>
+<link rel="stylesheet" href="../../boostbook.css" type="text/css">
+<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
+<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
+<link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
+<link rel="prev" href="merge.html" title="Global merge">
+<link rel="next" href="eps.html" title="Global eps">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+</head>
+<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
+<div class="spirit-nav">
+<a accesskey="p" href="merge.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="eps.html"><img src="../../images/next.png" alt="Next"></a>
+</div>
+<div class="refentry">
+<a name="boost.parser.separate"></a><div class="titlepage"></div>
+<div class="refnamediv">
+<h2><span class="refentrytitle">Global separate</span></h2>
+<p>boost::parser::separate</p>
+</div>
+<h2 class="refsynopsisdiv-title">Synopsis</h2>
+<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
+
+</span><span class="keyword">constexpr</span> <a class="link" href="separate_directive.html" title="Struct separate_directive">separate_directive</a> separate<span class="special">;</span></pre></div>
+<div class="refsect1">
+<a name="idm33359"></a><h2>Description</h2>
+<p>The <code class="computeroutput"><a class="link" href="separate_directive.html" title="Struct separate_directive">separate_directive</a></code>, whose <code class="computeroutput">operator[]</code> returns a <code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a>&lt;P2&gt;</code>, from a given parser of type <code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a>&lt;P&gt;</code>, where <code class="computeroutput">P</code> is a <code class="computeroutput"><a class="link" href="seq_parser.html" title="Struct template seq_parser">seq_parser</a></code>. <code class="computeroutput">P2</code> is the same as <code class="computeroutput">P</code>, except that its <code class="computeroutput">CombiningGroups</code> template parameter is replaced with a tag type that prevents each subparser's attribute from merging with any other subparser's attribute. </p>
+</div>
+</div>
+<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
+        Distributed under the Boost Software License, Version 1.0. (See accompanying
+        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
+      </p>
+</div>
+<hr>
+<div class="spirit-nav">
+<a accesskey="p" href="merge.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="eps.html"><img src="../../images/next.png" alt="Next"></a>
+</div>
+</body>
+</html>
diff --git a/doc/html/boost/parser/separate_directive.html b/doc/html/boost/parser/separate_directive.html
new file mode 100644
index 00000000..76621d88
--- /dev/null
+++ b/doc/html/boost/parser/separate_directive.html
@@ -0,0 +1,58 @@
+<html>
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+<title>Struct separate_directive</title>
+<link rel="stylesheet" href="../../boostbook.css" type="text/css">
+<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
+<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
+<link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
+<link rel="prev" href="rule_parser.html" title="Struct template rule_parser">
+<link rel="next" href="seq_parser.html" title="Struct template seq_parser">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+</head>
+<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
+<div class="spirit-nav">
+<a accesskey="p" href="rule_parser.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="seq_parser.html"><img src="../../images/next.png" alt="Next"></a>
+</div>
+<div class="refentry">
+<a name="boost.parser.separate_directive"></a><div class="titlepage"></div>
+<div class="refnamediv">
+<h2><span class="refentrytitle">Struct separate_directive</span></h2>
+<p>boost::parser::separate_directive</p>
+</div>
+<h2 class="refsynopsisdiv-title">Synopsis</h2>
+<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
+
+</span>
+<span class="keyword">struct</span> <a class="link" href="separate_directive.html" title="Struct separate_directive">separate_directive</a> <span class="special">{</span>
+
+  <span class="comment">// <a class="link" href="separate_directive.html#idm20985-bb">public member functions</a></span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ParserTuple<span class="special">,</span> <span class="keyword">typename</span> BacktrackingTuple<span class="special">,</span> 
+           <span class="keyword">typename</span> CombiningGroups<span class="special">&gt;</span> 
+    <span class="keyword">constexpr</span> <span class="keyword">auto</span> 
+    <a class="link" href="separate_directive.html#idm20986-bb"><span class="keyword">operator</span><span class="special">[</span><span class="special">]</span></a><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <a class="link" href="seq_parser.html" title="Struct template seq_parser">seq_parser</a><span class="special">&lt;</span> <span class="identifier">ParserTuple</span><span class="special">,</span> <span class="identifier">BacktrackingTuple</span><span class="special">,</span> <span class="identifier">CombiningGroups</span> <span class="special">&gt;</span> <span class="special">&gt;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+<span class="special">}</span><span class="special">;</span></pre></div>
+<div class="refsect1">
+<a name="idm30078"></a><h2>Description</h2>
+<p>A directive type that can only be used on sequence parsers, that prevents each of the sequence_parser's subparser's attributes from merging with any other subparser's attribute. </p>
+<div class="refsect2">
+<a name="idm30081"></a><h3>
+<a name="idm20985-bb"></a><code class="computeroutput">separate_directive</code> public member functions</h3>
+<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ParserTuple<span class="special">,</span> <span class="keyword">typename</span> BacktrackingTuple<span class="special">,</span> 
+         <span class="keyword">typename</span> CombiningGroups<span class="special">&gt;</span> 
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> 
+  <a name="idm20986-bb"></a><span class="keyword">operator</span><span class="special">[</span><span class="special">]</span><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <a class="link" href="seq_parser.html" title="Struct template seq_parser">seq_parser</a><span class="special">&lt;</span> <span class="identifier">ParserTuple</span><span class="special">,</span> <span class="identifier">BacktrackingTuple</span><span class="special">,</span> <span class="identifier">CombiningGroups</span> <span class="special">&gt;</span> <span class="special">&gt;</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li></ol></div>
+</div>
+</div>
+</div>
+<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
+        Distributed under the Boost Software License, Version 1.0. (See accompanying
+        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
+      </p>
+</div>
+<hr>
+<div class="spirit-nav">
+<a accesskey="p" href="rule_parser.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="seq_parser.html"><img src="../../images/next.png" alt="Next"></a>
+</div>
+</body>
+</html>
diff --git a/doc/html/boost/parser/seq_parser.html b/doc/html/boost/parser/seq_parser.html
index 1819684d..ff68b3fc 100644
--- a/doc/html/boost/parser/seq_parser.html
+++ b/doc/html/boost/parser/seq_parser.html
@@ -6,13 +6,13 @@
 <meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
 <link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="rule_parser.html" title="Struct template rule_parser">
+<link rel="prev" href="separate_directive.html" title="Struct separate_directive">
 <link rel="next" href="skip_directive.html" title="Struct template skip_directive">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="rule_parser.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="skip_directive.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="separate_directive.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="skip_directive.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
 <a name="boost.parser.seq_parser"></a><div class="titlepage"></div>
@@ -23,22 +23,24 @@ <h2><span class="refentrytitle">Struct template seq_parser</span></h2>
 <h2 class="refsynopsisdiv-title">Synopsis</h2>
 <div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">boost/parser/parser.hpp</a>&gt;
 
-</span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ParserTuple<span class="special">,</span> <span class="keyword">typename</span> BacktrackingTuple<span class="special">&gt;</span> 
+</span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ParserTuple<span class="special">,</span> <span class="keyword">typename</span> BacktrackingTuple<span class="special">,</span> 
+         <span class="keyword">typename</span> CombiningGroups<span class="special">&gt;</span> 
 <span class="keyword">struct</span> <a class="link" href="seq_parser.html" title="Struct template seq_parser">seq_parser</a> <span class="special">{</span>
   <span class="comment">// types</span>
-  <span class="keyword">typedef</span> <span class="identifier">BacktrackingTuple</span> <a name="boost.parser.seq_parser.backtracking"></a><span class="identifier">backtracking</span><span class="special">;</span>
+  <span class="keyword">typedef</span> <span class="identifier">BacktrackingTuple</span> <a name="boost.parser.seq_parser.backtracking"></a><span class="identifier">backtracking</span><span class="special">;</span>    
+  <span class="keyword">typedef</span> <span class="identifier">CombiningGroups</span>   <a name="boost.parser.seq_parser.combining_groups"></a><span class="identifier">combining_groups</span><span class="special">;</span>
 
   <span class="comment">// <a class="link" href="seq_parser.html#boost.parser.seq_parserconstruct-copy-destruct">construct/copy/destruct</a></span>
-  <a class="link" href="seq_parser.html#idm20767-bb"><span class="identifier">seq_parser</span></a><span class="special">(</span><span class="identifier">ParserTuple</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="seq_parser.html#idm21068-bb"><span class="identifier">seq_parser</span></a><span class="special">(</span><span class="identifier">ParserTuple</span><span class="special">)</span><span class="special">;</span>
 
-  <span class="comment">// <a class="link" href="seq_parser.html#idm20715-bb">public member functions</a></span>
+  <span class="comment">// <a class="link" href="seq_parser.html#idm21016-bb">public member functions</a></span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-    <span class="keyword">auto</span> <a class="link" href="seq_parser.html#idm20716-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">auto</span> <a class="link" href="seq_parser.html#idm21017-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="seq_parser.html#idm20740-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">void</span> <a class="link" href="seq_parser.html#idm21041-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">,</span> 
               <span class="identifier">Attribute</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
 
@@ -46,27 +48,27 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
   <span class="identifier">ParserTuple</span> <span class="identifier">parsers_</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm29842"></a><h2>Description</h2>
+<a name="idm30261"></a><h2>Description</h2>
 <p>Applies each parser in <code class="computeroutput">ParserTuple</code>, in order. The parse succeeds iff all of the sub-parsers succeeds. The attribute produced is a <code class="computeroutput">std::tuple</code> over the types of attribute produced by the parsers in <code class="computeroutput">ParserTuple</code>. The BacktrackingTuple template parameter is a <code class="computeroutput">parser::tuple</code> of <code class="computeroutput">std::bool_constant</code> values. The <code class="computeroutput">i</code>th such value indicates whether backtracking is allowed if the <code class="computeroutput">i</code>th parser fails. </p>
 <div class="refsect2">
-<a name="idm29852"></a><h3>
+<a name="idm30271"></a><h3>
 <a name="boost.parser.seq_parserconstruct-copy-destruct"></a><code class="computeroutput">seq_parser</code> 
         public
        construct/copy/destruct</h3>
-<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><a name="idm20767-bb"></a><span class="identifier">seq_parser</span><span class="special">(</span><span class="identifier">ParserTuple</span> parsers<span class="special">)</span><span class="special">;</span></pre></li></ol></div>
+<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><a name="idm21068-bb"></a><span class="identifier">seq_parser</span><span class="special">(</span><span class="identifier">ParserTuple</span> parsers<span class="special">)</span><span class="special">;</span></pre></li></ol></div>
 </div>
 <div class="refsect2">
-<a name="idm29866"></a><h3>
-<a name="idm20715-bb"></a><code class="computeroutput">seq_parser</code> public member functions</h3>
+<a name="idm30285"></a><h3>
+<a name="idm21016-bb"></a><code class="computeroutput">seq_parser</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-  <span class="keyword">auto</span> <a name="idm20716-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first_<span class="special">,</span> 
+  <span class="keyword">auto</span> <a name="idm21017-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first_<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm20740-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first_<span class="special">,</span> 
+  <span class="keyword">void</span> <a name="idm21041-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first_<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">,</span> <span class="identifier">Attribute</span> <span class="special">&amp;</span> retval<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 </ol></div>
@@ -80,7 +82,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="rule_parser.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="skip_directive.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="separate_directive.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="skip_directive.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/short_.html b/doc/html/boost/parser/short_.html
index 8786e4a1..0bd2f042 100644
--- a/doc/html/boost/parser/short_.html
+++ b/doc/html/boost/parser/short_.html
@@ -25,7 +25,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="keyword">constexpr</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <a class="link" href="int_parser.html" title="Struct template int_parser">int_parser</a><span class="special">&lt;</span> <span class="keyword">short</span> <span class="special">&gt;</span> <span class="special">&gt;</span> short_<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm33317"></a><h2>Description</h2>
+<a name="idm33760"></a><h2>Description</h2>
 <p>The <code class="computeroutput">short</code> parser. Produces a <code class="computeroutput">short</code> attribute. To parse a particular value <code class="computeroutput">x</code>, use <code class="computeroutput">short_(x)</code>. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/skip.html b/doc/html/boost/parser/skip.html
index 8e5eb828..ad104040 100644
--- a/doc/html/boost/parser/skip.html
+++ b/doc/html/boost/parser/skip.html
@@ -7,12 +7,12 @@
 <link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
 <link rel="prev" href="no_case.html" title="Global no_case">
-<link rel="next" href="eps.html" title="Global eps">
+<link rel="next" href="merge.html" title="Global merge">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="no_case.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="eps.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="no_case.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="merge.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
 <a name="boost.parser.skip"></a><div class="titlepage"></div>
@@ -25,8 +25,8 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="keyword">constexpr</span> <a class="link" href="skip_directive.html" title="Struct template skip_directive">skip_directive</a> skip<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm32921"></a><h2>Description</h2>
-<p>The <code class="computeroutput"><a class="link" href="skip_directive.html" title="Struct template skip_directive">skip_directive</a></code>, whose <code class="computeroutput">operator[]</code> returns an <code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a>&lt;<a class="link" href="skip_parser.html" title="Struct template skip_parser">skip_parser</a>&lt;P&gt;&gt;</code> from a given parser of type <code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a>&lt;P&gt;</code>. </p>
+<a name="idm33304"></a><h2>Description</h2>
+<p>The <code class="computeroutput"><a class="link" href="skip_directive.html" title="Struct template skip_directive">skip_directive</a></code>, whose <code class="computeroutput">operator[]</code> returns a <code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a>&lt;<a class="link" href="skip_parser.html" title="Struct template skip_parser">skip_parser</a>&lt;P&gt;&gt;</code> from a given parser of type <code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a>&lt;P&gt;</code>. </p>
 </div>
 </div>
 <div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
@@ -36,7 +36,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="no_case.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="eps.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="no_case.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="merge.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/skip_directive.html b/doc/html/boost/parser/skip_directive.html
index 42e73edc..ac8be0e6 100644
--- a/doc/html/boost/parser/skip_directive.html
+++ b/doc/html/boost/parser/skip_directive.html
@@ -26,28 +26,28 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> SkipParser <span class="special">=</span> detail::nope<span class="special">&gt;</span> 
 <span class="keyword">struct</span> <a class="link" href="skip_directive.html" title="Struct template skip_directive">skip_directive</a> <span class="special">{</span>
 
-  <span class="comment">// <a class="link" href="skip_directive.html#idm20781-bb">public member functions</a></span>
+  <span class="comment">// <a class="link" href="skip_directive.html#idm21082-bb">public member functions</a></span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="skip_directive.html#idm20782-bb"><span class="keyword">operator</span><span class="special">[</span><span class="special">]</span></a><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="skip_directive.html#idm21083-bb"><span class="keyword">operator</span><span class="special">[</span><span class="special">]</span></a><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> SkipParser2<span class="special">&gt;</span> 
-    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="skip_directive.html#idm20789-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser2</span> <span class="special">&gt;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="skip_directive.html#idm21090-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser2</span> <span class="special">&gt;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
 
   <span class="comment">// public data members</span>
   <span class="identifier">SkipParser</span> <span class="identifier">skip_parser_</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm30035"></a><h2>Description</h2>
+<a name="idm30454"></a><h2>Description</h2>
 <p>Represents a skip parser as a directive. When used without a skip parser, e.g. <code class="computeroutput">skip[parser_in_which_to_do_skipping]</code>, the skipper for the entire parse is used. When given another parser, e.g. <code class="computeroutput">skip(skip_parser)[parser_in_which_to_do_skipping]</code>, that other parser is used as the skipper within the directive. </p>
 <div class="refsect2">
-<a name="idm30040"></a><h3>
-<a name="idm20781-bb"></a><code class="computeroutput">skip_directive</code> public member functions</h3>
+<a name="idm30459"></a><h3>
+<a name="idm21082-bb"></a><code class="computeroutput">skip_directive</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm20782-bb"></a><span class="keyword">operator</span><span class="special">[</span><span class="special">]</span><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm21083-bb"></a><span class="keyword">operator</span><span class="special">[</span><span class="special">]</span><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li>
 <li class="listitem">
 <pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> SkipParser2<span class="special">&gt;</span> 
   <span class="keyword">constexpr</span> <span class="keyword">auto</span> 
-  <a name="idm20789-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser2</span> <span class="special">&gt;</span> skip_parser<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+  <a name="idm21090-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser2</span> <span class="special">&gt;</span> skip_parser<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="skip_directive.html" title="Struct template skip_directive">skip_directive</a></code></code> with <code class="computeroutput"><code class="computeroutput"><a class="link" href="skip_parser.html" title="Struct template skip_parser">skip_parser</a></code></code> as its skipper. </p>
 </li>
 </ol></div>
diff --git a/doc/html/boost/parser/skip_parser.html b/doc/html/boost/parser/skip_parser.html
index b2fe7071..38fd111d 100644
--- a/doc/html/boost/parser/skip_parser.html
+++ b/doc/html/boost/parser/skip_parser.html
@@ -26,14 +26,14 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
 <span class="keyword">struct</span> <a class="link" href="skip_parser.html" title="Struct template skip_parser">skip_parser</a> <span class="special">{</span>
 
-  <span class="comment">// <a class="link" href="skip_parser.html#idm20817-bb">public member functions</a></span>
+  <span class="comment">// <a class="link" href="skip_parser.html#idm21118-bb">public member functions</a></span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser_<span class="special">&gt;</span> 
-    <span class="keyword">auto</span> <a class="link" href="skip_parser.html#idm20818-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">auto</span> <a class="link" href="skip_parser.html#idm21119-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser_</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser_<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="skip_parser.html#idm20842-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">void</span> <a class="link" href="skip_parser.html#idm21143-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser_</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">,</span> 
               <span class="identifier">Attribute</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
 
@@ -42,20 +42,20 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
   <span class="identifier">SkipParser</span> <span class="identifier">skip_parser_</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm30220"></a><h2>Description</h2>
+<a name="idm30639"></a><h2>Description</h2>
 <p>Applies the given parser <code class="computeroutput">p</code> of type <code class="computeroutput">Parser</code>, using a parser of type <code class="computeroutput">SkipParser</code> as the skipper. The parse succeeds iff <code class="computeroutput">p</code> succeeds. The attribute produced is the type of attribute produced by <code class="computeroutput">Parser</code>. </p>
 <div class="refsect2">
-<a name="idm30228"></a><h3>
-<a name="idm20817-bb"></a><code class="computeroutput">skip_parser</code> public member functions</h3>
+<a name="idm30647"></a><h3>
+<a name="idm21118-bb"></a><code class="computeroutput">skip_parser</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser_<span class="special">&gt;</span> 
-  <span class="keyword">auto</span> <a name="idm20818-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="keyword">auto</span> <a name="idm21119-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser_</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser_<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm20842-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="keyword">void</span> <a name="idm21143-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser_</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">,</span> <span class="identifier">Attribute</span> <span class="special">&amp;</span> retval<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 </ol></div>
diff --git a/doc/html/boost/parser/stream_error_handler.html b/doc/html/boost/parser/stream_error_handler.html
index 14846a8a..3ce19727 100644
--- a/doc/html/boost/parser/stream_error_handler.html
+++ b/doc/html/boost/parser/stream_error_handler.html
@@ -26,71 +26,71 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span>
 <span class="keyword">struct</span> <a class="link" href="stream_error_handler.html" title="Struct stream_error_handler">stream_error_handler</a> <span class="special">{</span>
   <span class="comment">// <a class="link" href="stream_error_handler.html#boost.parser.stream_error_handlerconstruct-copy-destruct">construct/copy/destruct</a></span>
-  <a class="link" href="stream_error_handler.html#idm18555-bb"><span class="identifier">stream_error_handler</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
-  <a class="link" href="stream_error_handler.html#idm18556-bb"><span class="identifier">stream_error_handler</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">)</span><span class="special">;</span>
-  <a class="link" href="stream_error_handler.html#idm18559-bb"><span class="identifier">stream_error_handler</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
-  <a class="link" href="stream_error_handler.html#idm18564-bb"><span class="identifier">stream_error_handler</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
-  <a class="link" href="stream_error_handler.html#idm18571-bb"><span class="identifier">stream_error_handler</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring_view</span><span class="special">)</span><span class="special">;</span>
-  <a class="link" href="stream_error_handler.html#idm18576-bb"><span class="identifier">stream_error_handler</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring_view</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
-  <a class="link" href="stream_error_handler.html#idm18583-bb"><span class="identifier">stream_error_handler</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring_view</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="stream_error_handler.html#idm18825-bb"><span class="identifier">stream_error_handler</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="stream_error_handler.html#idm18826-bb"><span class="identifier">stream_error_handler</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="stream_error_handler.html#idm18829-bb"><span class="identifier">stream_error_handler</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="stream_error_handler.html#idm18834-bb"><span class="identifier">stream_error_handler</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="stream_error_handler.html#idm18841-bb"><span class="identifier">stream_error_handler</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring_view</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="stream_error_handler.html#idm18846-bb"><span class="identifier">stream_error_handler</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring_view</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="stream_error_handler.html#idm18853-bb"><span class="identifier">stream_error_handler</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring_view</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 
-  <span class="comment">// <a class="link" href="stream_error_handler.html#idm18494-bb">public member functions</a></span>
+  <span class="comment">// <a class="link" href="stream_error_handler.html#idm18764-bb">public member functions</a></span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">&gt;</span> 
     <span class="identifier">error_handler_result</span> 
-    <a class="link" href="stream_error_handler.html#idm18495-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">Iter</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> <a class="link" href="parse_error.html" title="Struct template parse_error">parse_error</a><span class="special">&lt;</span> <span class="identifier">Iter</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+    <a class="link" href="stream_error_handler.html#idm18765-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">Iter</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> <a class="link" href="parse_error.html" title="Struct template parse_error">parse_error</a><span class="special">&lt;</span> <span class="identifier">Iter</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="stream_error_handler.html#idm18515-bb"><span class="identifier">diagnose</span></a><span class="special">(</span><span class="identifier">diagnostic_kind</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Iter</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+    <span class="keyword">void</span> <a class="link" href="stream_error_handler.html#idm18785-bb"><span class="identifier">diagnose</span></a><span class="special">(</span><span class="identifier">diagnostic_kind</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Iter</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="stream_error_handler.html#idm18537-bb"><span class="identifier">diagnose</span></a><span class="special">(</span><span class="identifier">diagnostic_kind</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+    <span class="keyword">void</span> <a class="link" href="stream_error_handler.html#idm18807-bb"><span class="identifier">diagnose</span></a><span class="special">(</span><span class="identifier">diagnostic_kind</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm18706"></a><h2>Description</h2>
+<a name="idm18932"></a><h2>Description</h2>
 <p>Prints warnings and errors to the <code class="computeroutput">std::ostream</code>s provided by the user, or <code class="computeroutput">std::cerr</code> if neither stream is specified. If a filename is provided, that is used to print all diagnostics. </p>
 <div class="refsect2">
-<a name="idm18711"></a><h3>
+<a name="idm18937"></a><h3>
 <a name="boost.parser.stream_error_handlerconstruct-copy-destruct"></a><code class="computeroutput">stream_error_handler</code> 
         public
        construct/copy/destruct</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
-<li class="listitem"><pre class="literallayout"><a name="idm18555-bb"></a><span class="identifier">stream_error_handler</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><a name="idm18556-bb"></a><span class="identifier">stream_error_handler</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> filename<span class="special">)</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><a name="idm18559-bb"></a><span class="identifier">stream_error_handler</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> filename<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> errors<span class="special">)</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><a name="idm18564-bb"></a><span class="identifier">stream_error_handler</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> filename<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> errors<span class="special">,</span> 
+<li class="listitem"><pre class="literallayout"><a name="idm18825-bb"></a><span class="identifier">stream_error_handler</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a name="idm18826-bb"></a><span class="identifier">stream_error_handler</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> filename<span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a name="idm18829-bb"></a><span class="identifier">stream_error_handler</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> filename<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> errors<span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a name="idm18834-bb"></a><span class="identifier">stream_error_handler</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> filename<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> errors<span class="special">,</span> 
                      <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> warnings<span class="special">)</span><span class="special">;</span></pre></li>
 <li class="listitem">
-<pre class="literallayout"><a name="idm18571-bb"></a><span class="identifier">stream_error_handler</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring_view</span> filename<span class="special">)</span><span class="special">;</span></pre>
+<pre class="literallayout"><a name="idm18841-bb"></a><span class="identifier">stream_error_handler</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring_view</span> filename<span class="special">)</span><span class="special">;</span></pre>
 <p>This overload is Windows-only. </p>
 </li>
 <li class="listitem">
-<pre class="literallayout"><a name="idm18576-bb"></a><span class="identifier">stream_error_handler</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring_view</span> filename<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> errors<span class="special">)</span><span class="special">;</span></pre>
+<pre class="literallayout"><a name="idm18846-bb"></a><span class="identifier">stream_error_handler</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring_view</span> filename<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> errors<span class="special">)</span><span class="special">;</span></pre>
 <p>This overload is Windows-only. </p>
 </li>
 <li class="listitem">
-<pre class="literallayout"><a name="idm18583-bb"></a><span class="identifier">stream_error_handler</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring_view</span> filename<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> errors<span class="special">,</span> 
+<pre class="literallayout"><a name="idm18853-bb"></a><span class="identifier">stream_error_handler</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring_view</span> filename<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> errors<span class="special">,</span> 
                      <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> warnings<span class="special">)</span><span class="special">;</span></pre>
 <p>This overload is Windows-only. </p>
 </li>
 </ol></div>
 </div>
 <div class="refsect2">
-<a name="idm18823"></a><h3>
-<a name="idm18494-bb"></a><code class="computeroutput">stream_error_handler</code> public member functions</h3>
+<a name="idm19049"></a><h3>
+<a name="idm18764-bb"></a><code class="computeroutput">stream_error_handler</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
 <li class="listitem">
 <pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">&gt;</span> 
   <span class="identifier">error_handler_result</span> 
-  <a name="idm18495-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">Iter</span> first<span class="special">,</span> <span class="identifier">Sentinel</span> last<span class="special">,</span> <a class="link" href="parse_error.html" title="Struct template parse_error">parse_error</a><span class="special">&lt;</span> <span class="identifier">Iter</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> e<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
+  <a name="idm18765-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">Iter</span> first<span class="special">,</span> <span class="identifier">Sentinel</span> last<span class="special">,</span> <a class="link" href="parse_error.html" title="Struct template parse_error">parse_error</a><span class="special">&lt;</span> <span class="identifier">Iter</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> e<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
 <p>Handles a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parse_error.html" title="Struct template parse_error">parse_error</a></code></code> exception thrown during parsing. A formatted parse-expectation failure is printed to <code class="computeroutput">*err_os_</code> when <code class="computeroutput">err_os_</code> is non-null, or <code class="computeroutput">std::cerr</code> otherwise. Always returns <code class="computeroutput">error_handler_result::fail</code>. </p>
 </li>
 <li class="listitem">
 <pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm18515-bb"></a><span class="identifier">diagnose</span><span class="special">(</span><span class="identifier">diagnostic_kind</span> kind<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
+  <span class="keyword">void</span> <a name="idm18785-bb"></a><span class="identifier">diagnose</span><span class="special">(</span><span class="identifier">diagnostic_kind</span> kind<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
                 <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">Iter</span> it<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
 <p>Let <code class="computeroutput">std::ostream * s = kind == diagnostic_kind::error : err_os_ : warn_os_</code>; prints <code class="computeroutput">message</code> to <code class="computeroutput">*s</code> when <code class="computeroutput">s</code> is non-null, or <code class="computeroutput">std::cerr</code> otherwise. The diagnostic is printed with the given <code class="computeroutput">kind</code>, indicating the location as being at <code class="computeroutput">it</code>. This must be called within a parser semantic action, providing the parse context. </p>
 </li>
 <li class="listitem">
 <pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm18537-bb"></a><span class="identifier">diagnose</span><span class="special">(</span><span class="identifier">diagnostic_kind</span> kind<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
+  <span class="keyword">void</span> <a name="idm18807-bb"></a><span class="identifier">diagnose</span><span class="special">(</span><span class="identifier">diagnostic_kind</span> kind<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
                 <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
 <p>Let <code class="computeroutput">std::ostream * s = kind == diagnostic_kind::error : err_os_ : warn_os_</code>; prints <code class="computeroutput">message</code> to <code class="computeroutput">*s</code> when <code class="computeroutput">s</code> is non-null, or <code class="computeroutput">std::cerr</code> otherwise. The diagnostic is printed with the given <code class="computeroutput">kind</code>, at no particular location. This must be called within a parser semantic action, providing the parse context. </p>
 </li>
diff --git a/doc/html/boost/parser/string.html b/doc/html/boost/parser/string.html
index 94fdb11c..47b4d0ca 100644
--- a/doc/html/boost/parser/string.html
+++ b/doc/html/boost/parser/string.html
@@ -6,13 +6,13 @@
 <meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
 <link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="lit_idm22177.html" title="Function lit">
-<link rel="next" href="lit_idm22198.html" title="Function template lit">
+<link rel="prev" href="lit_idm22504.html" title="Function lit">
+<link rel="next" href="lit_idm22525.html" title="Function template lit">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="lit_idm22177.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="lit_idm22198.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="lit_idm22504.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="lit_idm22525.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
 <a name="boost.parser.string"></a><div class="titlepage"></div>
@@ -26,7 +26,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span>
 <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">&gt;</span> <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="identifier">string</span><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span> str<span class="special">)</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm34114"></a><h2>Description</h2>
+<a name="idm34557"></a><h2>Description</h2>
 <p>Returns a parser that matches <code class="computeroutput">str</code> that produces the matched string as its attribute. </p>
 </div>
 </div>
@@ -37,7 +37,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="lit_idm22177.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="lit_idm22198.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="lit_idm22504.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="lit_idm22525.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/string_parser.html b/doc/html/boost/parser/string_parser.html
index 66b85147..672a1e00 100644
--- a/doc/html/boost/parser/string_parser.html
+++ b/doc/html/boost/parser/string_parser.html
@@ -26,20 +26,20 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> StrIter<span class="special">,</span> <span class="keyword">typename</span> StrSentinel<span class="special">&gt;</span> 
 <span class="keyword">struct</span> <a class="link" href="string_parser.html" title="Struct template string_parser">string_parser</a> <span class="special">{</span>
   <span class="comment">// <a class="link" href="string_parser.html#boost.parser.string_parserconstruct-copy-destruct">construct/copy/destruct</a></span>
-  <a class="link" href="string_parser.html#idm20931-bb"><span class="identifier">string_parser</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="string_parser.html#idm21232-bb"><span class="identifier">string_parser</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> 
            <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-    <a class="link" href="string_parser.html#idm20932-bb"><span class="identifier">string_parser</span></a><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span><span class="special">)</span><span class="special">;</span>
+    <a class="link" href="string_parser.html#idm21233-bb"><span class="identifier">string_parser</span></a><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span><span class="special">)</span><span class="special">;</span>
 
-  <span class="comment">// <a class="link" href="string_parser.html#idm20879-bb">public member functions</a></span>
+  <span class="comment">// <a class="link" href="string_parser.html#idm21180-bb">public member functions</a></span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-    <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <a class="link" href="string_parser.html#idm20880-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <a class="link" href="string_parser.html#idm21181-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
                      <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> 
                      <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="string_parser.html#idm20904-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">void</span> <a class="link" href="string_parser.html#idm21205-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">,</span> 
               <span class="identifier">Attribute</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
 
@@ -48,33 +48,33 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
   <span class="identifier">StrSentinel</span> <span class="identifier">expected_last_</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm30489"></a><h2>Description</h2>
+<a name="idm30908"></a><h2>Description</h2>
 <p>Maches a particular string, delimited by an iterator sentinel pair; produces no attribute. </p>
 <div class="refsect2">
-<a name="idm30492"></a><h3>
+<a name="idm30911"></a><h3>
 <a name="boost.parser.string_parserconstruct-copy-destruct"></a><code class="computeroutput">string_parser</code> 
         public
        construct/copy/destruct</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
-<li class="listitem"><pre class="literallayout"><a name="idm20931-bb"></a><span class="identifier">string_parser</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a name="idm21232-bb"></a><span class="identifier">string_parser</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li>
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> 
          <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-  <a name="idm20932-bb"></a><span class="identifier">string_parser</span><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span> r<span class="special">)</span><span class="special">;</span></pre></li>
+  <a name="idm21233-bb"></a><span class="identifier">string_parser</span><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span> r<span class="special">)</span><span class="special">;</span></pre></li>
 </ol></div>
 </div>
 <div class="refsect2">
-<a name="idm30532"></a><h3>
-<a name="idm20879-bb"></a><code class="computeroutput">string_parser</code> public member functions</h3>
+<a name="idm30951"></a><h3>
+<a name="idm21180-bb"></a><code class="computeroutput">string_parser</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-  <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <a name="idm20880-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <a name="idm21181-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
                    <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> 
                    <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> 
                    <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm20904-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="keyword">void</span> <a name="idm21205-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">,</span> <span class="identifier">Attribute</span> <span class="special">&amp;</span> retval<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 </ol></div>
diff --git a/doc/html/boost/parser/string_view.html b/doc/html/boost/parser/string_view.html
index f3bb6e63..9db7f488 100644
--- a/doc/html/boost/parser/string_view.html
+++ b/doc/html/boost/parser/string_view.html
@@ -25,8 +25,8 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="keyword">constexpr</span> <a class="link" href="directive.html" title="Struct template directive">directive</a><span class="special">&lt;</span> <a class="link" href="string_view_parser.html" title="Struct template string_view_parser">string_view_parser</a> <span class="special">&gt;</span> string_view<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm32843"></a><h2>Description</h2>
-<p>The <code class="computeroutput">string_view</code> directive, whose <code class="computeroutput">operator[]</code> returns an <code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a>&lt;<a class="link" href="string_view_parser.html" title="Struct template string_view_parser">string_view_parser</a>&lt;P&gt;&gt;</code> from a given parser of type <code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a>&lt;P&gt;</code>. This is only available in C++20 and later. </p>
+<a name="idm33226"></a><h2>Description</h2>
+<p>The <code class="computeroutput">string_view</code> directive, whose <code class="computeroutput">operator[]</code> returns a <code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a>&lt;<a class="link" href="string_view_parser.html" title="Struct template string_view_parser">string_view_parser</a>&lt;P&gt;&gt;</code> from a given parser of type <code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a>&lt;P&gt;</code>. This is only available in C++20 and later. </p>
 </div>
 </div>
 <div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
diff --git a/doc/html/boost/parser/string_view_parser.html b/doc/html/boost/parser/string_view_parser.html
index 9dff47cc..f2d5c8c6 100644
--- a/doc/html/boost/parser/string_view_parser.html
+++ b/doc/html/boost/parser/string_view_parser.html
@@ -26,14 +26,14 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
 <span class="keyword">struct</span> <a class="link" href="string_view_parser.html" title="Struct template string_view_parser">string_view_parser</a> <span class="special">{</span>
 
-  <span class="comment">// <a class="link" href="string_view_parser.html#idm20957-bb">public member functions</a></span>
+  <span class="comment">// <a class="link" href="string_view_parser.html#idm21258-bb">public member functions</a></span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-    <span class="keyword">auto</span> <a class="link" href="string_view_parser.html#idm20958-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">auto</span> <a class="link" href="string_view_parser.html#idm21259-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="string_view_parser.html#idm20982-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">void</span> <a class="link" href="string_view_parser.html#idm21283-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">,</span> 
               <span class="identifier">Attribute</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
 
@@ -41,20 +41,20 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
   <span class="identifier">Parser</span> <span class="identifier">parser_</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm30757"></a><h2>Description</h2>
+<a name="idm31176"></a><h2>Description</h2>
 <p>Applies the given parser <code class="computeroutput">p</code> of type <code class="computeroutput">Parser</code>. Regardless of the attribute produced by <code class="computeroutput">Parser</code>, this parser's attribute is equivalent to <code class="computeroutput">std::basic_string_view&lt;char_type&gt;</code> within a semantic action on <code class="computeroutput">p</code>, where <code class="computeroutput">char_type</code> is the type of character in the underlying the sequence being parsed. If the parsed range is transcoded, <code class="computeroutput">char_type</code> will be the type being transcoded from. If the underlying range of <code class="computeroutput">char_type</code> is non-contiguous, using <code class="computeroutput"><a class="link" href="string_view_parser.html" title="Struct template string_view_parser">string_view_parser</a></code> is ill-formed. This is only available in C++20 and later. The parse succeeds iff <code class="computeroutput">p</code> succeeds. </p>
 <div class="refsect2">
-<a name="idm30771"></a><h3>
-<a name="idm20957-bb"></a><code class="computeroutput">string_view_parser</code> public member functions</h3>
+<a name="idm31190"></a><h3>
+<a name="idm21258-bb"></a><code class="computeroutput">string_view_parser</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-  <span class="keyword">auto</span> <a name="idm20958-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="keyword">auto</span> <a name="idm21259-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm20982-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="keyword">void</span> <a name="idm21283-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">,</span> <span class="identifier">Attribute</span> <span class="special">&amp;</span> retval<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 </ol></div>
diff --git a/doc/html/boost/parser/subrange.html b/doc/html/boost/parser/subrange.html
index f393d728..d2f6d6d8 100644
--- a/doc/html/boost/parser/subrange.html
+++ b/doc/html/boost/parser/subrange.html
@@ -26,46 +26,46 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S <span class="special">=</span> <span class="identifier">I</span><span class="special">&gt;</span> 
 <span class="keyword">struct</span> <a class="link" href="subrange.html" title="Struct template subrange">subrange</a> <span class="special">{</span>
   <span class="comment">// <a class="link" href="subrange.html#boost.parser.subrangeconstruct-copy-destruct">construct/copy/destruct</a></span>
-  <a class="link" href="subrange.html#idm22947-bb"><span class="identifier">subrange</span></a><span class="special">(</span><span class="special">)</span> <span class="special">=</span> <span class="keyword">default</span><span class="special">;</span>
-  <a class="link" href="subrange.html#idm22948-bb"><span class="identifier">subrange</span></a><span class="special">(</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">)</span><span class="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">&gt;</span> <span class="keyword">explicit</span> <a class="link" href="subrange.html#idm22953-bb"><span class="identifier">subrange</span></a><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="subrange.html#idm23279-bb"><span class="identifier">subrange</span></a><span class="special">(</span><span class="special">)</span> <span class="special">=</span> <span class="keyword">default</span><span class="special">;</span>
+  <a class="link" href="subrange.html#idm23280-bb"><span class="identifier">subrange</span></a><span class="special">(</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">)</span><span class="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">&gt;</span> <span class="keyword">explicit</span> <a class="link" href="subrange.html#idm23285-bb"><span class="identifier">subrange</span></a><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 
-  <span class="comment">// <a class="link" href="subrange.html#idm22918-bb">public member functions</a></span>
-  <span class="keyword">constexpr</span> <span class="identifier">I</span> <a class="link" href="subrange.html#idm22919-bb"><span class="identifier">begin</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
-  <span class="keyword">constexpr</span> <span class="identifier">S</span> <a class="link" href="subrange.html#idm22921-bb"><span class="identifier">end</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
-  <span class="keyword">constexpr</span> <a class="link" href="subrange.html" title="Struct template subrange">subrange</a> <a class="link" href="subrange.html#idm22923-bb"><span class="identifier">next</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ptrdiff_t</span> <span class="special">=</span> <span class="number">1</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
-  <span class="keyword">constexpr</span> <a class="link" href="subrange.html" title="Struct template subrange">subrange</a> <a class="link" href="subrange.html#idm22929-bb"><span class="identifier">prev</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ptrdiff_t</span> <span class="special">=</span> <span class="number">1</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
-  <span class="keyword">constexpr</span> <a class="link" href="subrange.html" title="Struct template subrange">subrange</a> <span class="special">&amp;</span> <a class="link" href="subrange.html#idm22935-bb"><span class="identifier">advance</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ptrdiff_t</span><span class="special">)</span><span class="special">;</span>
+  <span class="comment">// <a class="link" href="subrange.html#idm23250-bb">public member functions</a></span>
+  <span class="keyword">constexpr</span> <span class="identifier">I</span> <a class="link" href="subrange.html#idm23251-bb"><span class="identifier">begin</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+  <span class="keyword">constexpr</span> <span class="identifier">S</span> <a class="link" href="subrange.html#idm23253-bb"><span class="identifier">end</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+  <span class="keyword">constexpr</span> <a class="link" href="subrange.html" title="Struct template subrange">subrange</a> <a class="link" href="subrange.html#idm23255-bb"><span class="identifier">next</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ptrdiff_t</span> <span class="special">=</span> <span class="number">1</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+  <span class="keyword">constexpr</span> <a class="link" href="subrange.html" title="Struct template subrange">subrange</a> <a class="link" href="subrange.html#idm23261-bb"><span class="identifier">prev</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ptrdiff_t</span> <span class="special">=</span> <span class="number">1</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+  <span class="keyword">constexpr</span> <a class="link" href="subrange.html" title="Struct template subrange">subrange</a> <span class="special">&amp;</span> <a class="link" href="subrange.html#idm23267-bb"><span class="identifier">advance</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ptrdiff_t</span><span class="special">)</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I2<span class="special">,</span> <span class="keyword">typename</span> S2<span class="special">,</span> 
            <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>                <span class="identifier">std</span><span class="special">::</span><span class="identifier">is_convertible</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">I2</span><span class="special">&gt;</span><span class="special">::</span><span class="identifier">value</span> <span class="special">&amp;&amp;</span>                <span class="identifier">std</span><span class="special">::</span><span class="identifier">is_convertible</span><span class="special">&lt;</span><span class="identifier">S</span><span class="special">,</span> <span class="identifier">S2</span><span class="special">&gt;</span><span class="special">::</span><span class="identifier">value</span><span class="special">&gt;</span> <span class="special">&gt;</span> 
-    <span class="keyword">constexpr</span> <a class="link" href="subrange.html#idm22940-bb"><span class="keyword">operator</span> <span class="identifier">subrange</span><span class="special">&lt;</span> <span class="identifier">I2</span><span class="special">,</span> <span class="identifier">S2</span> <span class="special">&gt;</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+    <span class="keyword">constexpr</span> <a class="link" href="subrange.html#idm23272-bb"><span class="keyword">operator</span> <span class="identifier">subrange</span><span class="special">&lt;</span> <span class="identifier">I2</span><span class="special">,</span> <span class="identifier">S2</span> <span class="special">&gt;</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm36210"></a><h2>Description</h2>
+<a name="idm36675"></a><h2>Description</h2>
 <p>A simple view type used throughout the rest of the library, similar to <code class="computeroutput">std::ranges::subrange</code>. </p>
 <div class="refsect2">
-<a name="idm36214"></a><h3>
+<a name="idm36679"></a><h3>
 <a name="boost.parser.subrangeconstruct-copy-destruct"></a><code class="computeroutput">subrange</code> 
         public
        construct/copy/destruct</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
-<li class="listitem"><pre class="literallayout"><a name="idm22947-bb"></a><span class="identifier">subrange</span><span class="special">(</span><span class="special">)</span> <span class="special">=</span> <span class="keyword">default</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><a name="idm22948-bb"></a><span class="identifier">subrange</span><span class="special">(</span><span class="identifier">I</span> first<span class="special">,</span> <span class="identifier">S</span> last<span class="special">)</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">&gt;</span> <span class="keyword">explicit</span> <a name="idm22953-bb"></a><span class="identifier">subrange</span><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span> r<span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a name="idm23279-bb"></a><span class="identifier">subrange</span><span class="special">(</span><span class="special">)</span> <span class="special">=</span> <span class="keyword">default</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a name="idm23280-bb"></a><span class="identifier">subrange</span><span class="special">(</span><span class="identifier">I</span> first<span class="special">,</span> <span class="identifier">S</span> last<span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">&gt;</span> <span class="keyword">explicit</span> <a name="idm23285-bb"></a><span class="identifier">subrange</span><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span> r<span class="special">)</span><span class="special">;</span></pre></li>
 </ol></div>
 </div>
 <div class="refsect2">
-<a name="idm36256"></a><h3>
-<a name="idm22918-bb"></a><code class="computeroutput">subrange</code> public member functions</h3>
+<a name="idm36721"></a><h3>
+<a name="idm23250-bb"></a><code class="computeroutput">subrange</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
-<li class="listitem"><pre class="literallayout"><span class="keyword">constexpr</span> <span class="identifier">I</span> <a name="idm22919-bb"></a><span class="identifier">begin</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">constexpr</span> <span class="identifier">S</span> <a name="idm22921-bb"></a><span class="identifier">end</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">constexpr</span> <a class="link" href="subrange.html" title="Struct template subrange">subrange</a> <a name="idm22923-bb"></a><span class="identifier">next</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ptrdiff_t</span> n <span class="special">=</span> <span class="number">1</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">constexpr</span> <a class="link" href="subrange.html" title="Struct template subrange">subrange</a> <a name="idm22929-bb"></a><span class="identifier">prev</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ptrdiff_t</span> n <span class="special">=</span> <span class="number">1</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">constexpr</span> <a class="link" href="subrange.html" title="Struct template subrange">subrange</a> <span class="special">&amp;</span> <a name="idm22935-bb"></a><span class="identifier">advance</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ptrdiff_t</span> n<span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">constexpr</span> <span class="identifier">I</span> <a name="idm23251-bb"></a><span class="identifier">begin</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">constexpr</span> <span class="identifier">S</span> <a name="idm23253-bb"></a><span class="identifier">end</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">constexpr</span> <a class="link" href="subrange.html" title="Struct template subrange">subrange</a> <a name="idm23255-bb"></a><span class="identifier">next</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ptrdiff_t</span> n <span class="special">=</span> <span class="number">1</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">constexpr</span> <a class="link" href="subrange.html" title="Struct template subrange">subrange</a> <a name="idm23261-bb"></a><span class="identifier">prev</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ptrdiff_t</span> n <span class="special">=</span> <span class="number">1</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">constexpr</span> <a class="link" href="subrange.html" title="Struct template subrange">subrange</a> <span class="special">&amp;</span> <a name="idm23267-bb"></a><span class="identifier">advance</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ptrdiff_t</span> n<span class="special">)</span><span class="special">;</span></pre></li>
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I2<span class="special">,</span> <span class="keyword">typename</span> S2<span class="special">,</span> 
          <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>                <span class="identifier">std</span><span class="special">::</span><span class="identifier">is_convertible</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">I2</span><span class="special">&gt;</span><span class="special">::</span><span class="identifier">value</span> <span class="special">&amp;&amp;</span>                <span class="identifier">std</span><span class="special">::</span><span class="identifier">is_convertible</span><span class="special">&lt;</span><span class="identifier">S</span><span class="special">,</span> <span class="identifier">S2</span><span class="special">&gt;</span><span class="special">::</span><span class="identifier">value</span><span class="special">&gt;</span> <span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <a name="idm22940-bb"></a><span class="keyword">operator</span> <span class="identifier">subrange</span><span class="special">&lt;</span> <span class="identifier">I2</span><span class="special">,</span> <span class="identifier">S2</span> <span class="special">&gt;</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
+  <span class="keyword">constexpr</span> <a name="idm23272-bb"></a><span class="keyword">operator</span> <span class="identifier">subrange</span><span class="special">&lt;</span> <span class="identifier">I2</span><span class="special">,</span> <span class="identifier">S2</span> <span class="special">&gt;</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 </ol></div>
 </div>
 </div>
diff --git a/doc/html/boost/parser/switch_.html b/doc/html/boost/parser/switch_.html
index f63b4450..02fb6d87 100644
--- a/doc/html/boost/parser/switch_.html
+++ b/doc/html/boost/parser/switch_.html
@@ -7,12 +7,12 @@
 <link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
 <link rel="prev" href="if_.html" title="Function template if_">
-<link rel="next" href="operator_idm22236.html" title="Function template operator&gt;&gt;">
+<link rel="next" href="operator_idm22563.html" title="Function template operator&gt;&gt;">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="if_.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="operator_idm22236.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="if_.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="operator_idm22563.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
 <a name="boost.parser.switch_"></a><div class="titlepage"></div>
@@ -26,7 +26,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span>
 <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <span class="keyword">constexpr</span> <span class="keyword">auto</span> <span class="identifier">switch_</span><span class="special">(</span><span class="identifier">T</span> x<span class="special">)</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm34200"></a><h2>Description</h2>
+<a name="idm34643"></a><h2>Description</h2>
 <p>Returns a <code class="computeroutput">switch</code>-like parser. The resulting parser uses the given value <code class="computeroutput">x</code> to select one of the following value/parser pairs, and to apply the selected parser. <code class="computeroutput">x</code> may be a value to be used directly, or a unary invocable that takes a reference to the parse context, and returns the value to use. You can add more value/parser cases to the returned parser, using its call operator, e.g. <code class="computeroutput">switch_(x)(y1, p1)(y2, p2)</code>. As with the <code class="computeroutput">x</code> passed to this function, each <code class="computeroutput">yN</code> value can be a value or a unary invocable. </p>
 </div>
 </div>
@@ -37,7 +37,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="if_.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="operator_idm22236.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="if_.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="operator_idm22563.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/switch_parser.html b/doc/html/boost/parser/switch_parser.html
index fc57badd..f37024b9 100644
--- a/doc/html/boost/parser/switch_parser.html
+++ b/doc/html/boost/parser/switch_parser.html
@@ -26,60 +26,60 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> SwitchValue<span class="special">,</span> <span class="keyword">typename</span> OrParser<span class="special">&gt;</span> 
 <span class="keyword">struct</span> <a class="link" href="switch_parser.html" title="Struct template switch_parser">switch_parser</a> <span class="special">{</span>
   <span class="comment">// <a class="link" href="switch_parser.html#boost.parser.switch_parserconstruct-copy-destruct">construct/copy/destruct</a></span>
-  <a class="link" href="switch_parser.html#idm21093-bb"><span class="identifier">switch_parser</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
-  <a class="link" href="switch_parser.html#idm21094-bb"><span class="identifier">switch_parser</span></a><span class="special">(</span><span class="identifier">SwitchValue</span><span class="special">)</span><span class="special">;</span>
-  <a class="link" href="switch_parser.html#idm21097-bb"><span class="identifier">switch_parser</span></a><span class="special">(</span><span class="identifier">SwitchValue</span><span class="special">,</span> <span class="identifier">OrParser</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="switch_parser.html#idm21394-bb"><span class="identifier">switch_parser</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="switch_parser.html#idm21395-bb"><span class="identifier">switch_parser</span></a><span class="special">(</span><span class="identifier">SwitchValue</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="switch_parser.html#idm21398-bb"><span class="identifier">switch_parser</span></a><span class="special">(</span><span class="identifier">SwitchValue</span><span class="special">,</span> <span class="identifier">OrParser</span><span class="special">)</span><span class="special">;</span>
 
-  <span class="comment">// <a class="link" href="switch_parser.html#idm21022-bb">public member functions</a></span>
+  <span class="comment">// <a class="link" href="switch_parser.html#idm21323-bb">public member functions</a></span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-    <span class="keyword">auto</span> <a class="link" href="switch_parser.html#idm21023-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">auto</span> <a class="link" href="switch_parser.html#idm21324-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="switch_parser.html#idm21047-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">void</span> <a class="link" href="switch_parser.html#idm21348-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">,</span> 
               <span class="identifier">Attribute</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Value<span class="special">,</span> <span class="keyword">typename</span> Parser2<span class="special">&gt;</span> 
     <span class="keyword">constexpr</span> <span class="keyword">auto</span> 
-    <a class="link" href="switch_parser.html#idm21074-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">Value</span><span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser2</span> <span class="special">&gt;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+    <a class="link" href="switch_parser.html#idm21375-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">Value</span><span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser2</span> <span class="special">&gt;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
 
   <span class="comment">// public data members</span>
   <span class="identifier">SwitchValue</span> <span class="identifier">switch_value_</span><span class="special">;</span>
   <span class="identifier">OrParser</span> <span class="identifier">or_parser_</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm31043"></a><h2>Description</h2>
+<a name="idm31462"></a><h2>Description</h2>
 <p>Applies at most one of the parsers in <code class="computeroutput">OrParser</code>. If <code class="computeroutput">switch_value_</code> matches one or more of the values in the parsers in <code class="computeroutput">OrParser</code>, the first such parser is applied, and the success or failure and attribute of the parse are those of the applied parser. Otherwise, the parse fails. </p>
 <div class="refsect2">
-<a name="idm31049"></a><h3>
+<a name="idm31468"></a><h3>
 <a name="boost.parser.switch_parserconstruct-copy-destruct"></a><code class="computeroutput">switch_parser</code> 
         public
        construct/copy/destruct</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
-<li class="listitem"><pre class="literallayout"><a name="idm21093-bb"></a><span class="identifier">switch_parser</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><a name="idm21094-bb"></a><span class="identifier">switch_parser</span><span class="special">(</span><span class="identifier">SwitchValue</span> switch_value<span class="special">)</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><a name="idm21097-bb"></a><span class="identifier">switch_parser</span><span class="special">(</span><span class="identifier">SwitchValue</span> switch_value<span class="special">,</span> <span class="identifier">OrParser</span> or_parser<span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a name="idm21394-bb"></a><span class="identifier">switch_parser</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a name="idm21395-bb"></a><span class="identifier">switch_parser</span><span class="special">(</span><span class="identifier">SwitchValue</span> switch_value<span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a name="idm21398-bb"></a><span class="identifier">switch_parser</span><span class="special">(</span><span class="identifier">SwitchValue</span> switch_value<span class="special">,</span> <span class="identifier">OrParser</span> or_parser<span class="special">)</span><span class="special">;</span></pre></li>
 </ol></div>
 </div>
 <div class="refsect2">
-<a name="idm31082"></a><h3>
-<a name="idm21022-bb"></a><code class="computeroutput">switch_parser</code> public member functions</h3>
+<a name="idm31501"></a><h3>
+<a name="idm21323-bb"></a><code class="computeroutput">switch_parser</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-  <span class="keyword">auto</span> <a name="idm21023-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="keyword">auto</span> <a name="idm21324-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm21047-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="keyword">void</span> <a name="idm21348-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">,</span> <span class="identifier">Attribute</span> <span class="special">&amp;</span> retval<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 <li class="listitem">
 <pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Value<span class="special">,</span> <span class="keyword">typename</span> Parser2<span class="special">&gt;</span> 
   <span class="keyword">constexpr</span> <span class="keyword">auto</span> 
-  <a name="idm21074-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">Value</span> value_<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser2</span> <span class="special">&gt;</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+  <a name="idm21375-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">Value</span> value_<span class="special">,</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser2</span> <span class="special">&gt;</span> rhs<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code></code> containing a <code class="computeroutput"><code class="computeroutput"><a class="link" href="switch_parser.html" title="Struct template switch_parser">switch_parser</a></code></code>, with the case <code class="computeroutput">value_</code>,<code class="computeroutput">rhs</code> appended to its <code class="computeroutput">or_parser_</code>. </p>
 </li>
 </ol></div>
diff --git a/doc/html/boost/parser/symbol_parser.html b/doc/html/boost/parser/symbol_parser.html
index 0e613684..cc9f7336 100644
--- a/doc/html/boost/parser/symbol_parser.html
+++ b/doc/html/boost/parser/symbol_parser.html
@@ -26,35 +26,35 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> 
 <span class="keyword">struct</span> <a class="link" href="symbol_parser.html" title="Struct template symbol_parser">symbol_parser</a> <span class="special">{</span>
   <span class="comment">// <a class="link" href="symbol_parser.html#boost.parser.symbol_parserconstruct-copy-destruct">construct/copy/destruct</a></span>
-  <a class="link" href="symbol_parser.html#idm21215-bb"><span class="identifier">symbol_parser</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
-  <a class="link" href="symbol_parser.html#idm21216-bb"><span class="identifier">symbol_parser</span></a><span class="special">(</span><a class="link" href="symbol_parser.html" title="Struct template symbol_parser">symbol_parser</a> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="symbol_parser.html#idm21516-bb"><span class="identifier">symbol_parser</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="symbol_parser.html#idm21517-bb"><span class="identifier">symbol_parser</span></a><span class="special">(</span><a class="link" href="symbol_parser.html" title="Struct template symbol_parser">symbol_parser</a> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
 
-  <span class="comment">// <a class="link" href="symbol_parser.html#idm21118-bb">public member functions</a></span>
+  <span class="comment">// <a class="link" href="symbol_parser.html#idm21419-bb">public member functions</a></span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-    <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="symbol_parser.html#idm21119-bb"><span class="identifier">find</span></a><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+    <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="symbol_parser.html#idm21420-bb"><span class="identifier">find</span></a><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="symbol_parser.html#idm21132-bb"><span class="identifier">insert</span></a><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">T</span> <span class="special">&amp;&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+    <span class="keyword">void</span> <a class="link" href="symbol_parser.html#idm21433-bb"><span class="identifier">insert</span></a><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">T</span> <span class="special">&amp;&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="symbol_parser.html#idm21147-bb"><span class="identifier">erase</span></a><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+    <span class="keyword">void</span> <a class="link" href="symbol_parser.html#idm21448-bb"><span class="identifier">erase</span></a><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-    <span class="identifier">T</span> <a class="link" href="symbol_parser.html#idm21159-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="identifier">T</span> <a class="link" href="symbol_parser.html#idm21460-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
            <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="symbol_parser.html#idm21183-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">void</span> <a class="link" href="symbol_parser.html#idm21484-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">,</span> 
               <span class="identifier">Attribute</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
-  <a class="link" href="symbol_parser.html" title="Struct template symbol_parser">symbol_parser</a> <span class="keyword">const</span> <span class="special">&amp;</span> <a class="link" href="symbol_parser.html#idm21210-bb"><span class="identifier">ref</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+  <a class="link" href="symbol_parser.html" title="Struct template symbol_parser">symbol_parser</a> <span class="keyword">const</span> <span class="special">&amp;</span> <a class="link" href="symbol_parser.html#idm21511-bb"><span class="identifier">ref</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
   <span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special">&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">T</span> <span class="special">&gt;</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> 
-  <a class="link" href="symbol_parser.html#idm21213-bb"><span class="identifier">initial_elements</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+  <a class="link" href="symbol_parser.html#idm21514-bb"><span class="identifier">initial_elements</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
 
   <span class="comment">// public data members</span>
   <span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special">&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">T</span> <span class="special">&gt;</span> <span class="special">&gt;</span> <span class="identifier">initial_elements_</span><span class="special">;</span>
   <a class="link" href="symbol_parser.html" title="Struct template symbol_parser">symbol_parser</a> <span class="keyword">const</span>  <span class="special">*</span> <span class="identifier">copied_from_</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm31467"></a><h2>Description</h2>
+<a name="idm31886"></a><h2>Description</h2>
 <p>Matches one of a set S of possible inputs, each of which is associated with an attribute value of type <code class="computeroutput">T</code>, forming a symbol table. New elements and their associated attributes may be added to or removed from S dynamically, during parsing; any such changes are reverted at the end of parsing. The parse succeeds iff an element of S is matched. </p>
 <p><span class="bold"><strong>See Also:</strong></span></p>
 <p><code class="computeroutput"><a class="link" href="symbols.html" title="Struct template symbols">symbols</a></code> </p>
@@ -63,47 +63,47 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 <p>
 </p>
 <div class="refsect2">
-<a name="idm31476"></a><h3>
+<a name="idm31895"></a><h3>
 <a name="boost.parser.symbol_parserconstruct-copy-destruct"></a><code class="computeroutput">symbol_parser</code> 
         public
        construct/copy/destruct</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
-<li class="listitem"><pre class="literallayout"><a name="idm21215-bb"></a><span class="identifier">symbol_parser</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><a name="idm21216-bb"></a><span class="identifier">symbol_parser</span><span class="special">(</span><a class="link" href="symbol_parser.html" title="Struct template symbol_parser">symbol_parser</a> <span class="keyword">const</span> <span class="special">&amp;</span> other<span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a name="idm21516-bb"></a><span class="identifier">symbol_parser</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a name="idm21517-bb"></a><span class="identifier">symbol_parser</span><span class="special">(</span><a class="link" href="symbol_parser.html" title="Struct template symbol_parser">symbol_parser</a> <span class="keyword">const</span> <span class="special">&amp;</span> other<span class="special">)</span><span class="special">;</span></pre></li>
 </ol></div>
 </div>
 <div class="refsect2">
-<a name="idm31500"></a><h3>
-<a name="idm21118-bb"></a><code class="computeroutput">symbol_parser</code> public member functions</h3>
+<a name="idm31919"></a><h3>
+<a name="idm21419-bb"></a><code class="computeroutput">symbol_parser</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
 <li class="listitem">
 <pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-  <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a name="idm21119-bb"></a><span class="identifier">find</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> str<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
+  <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a name="idm21420-bb"></a><span class="identifier">find</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> str<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
 <p>Uses UTF-8 string <code class="computeroutput">str</code> to look up an attribute in the table during parsing, returning it as an optional reference. The lookup is done on the copy of the symbol table inside the parse context <code class="computeroutput">context</code>. </p>
 </li>
 <li class="listitem">
 <pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm21132-bb"></a><span class="identifier">insert</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> str<span class="special">,</span> <span class="identifier">T</span> <span class="special">&amp;&amp;</span> x<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
+  <span class="keyword">void</span> <a name="idm21433-bb"></a><span class="identifier">insert</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> str<span class="special">,</span> <span class="identifier">T</span> <span class="special">&amp;&amp;</span> x<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
 <p>Inserts an entry consisting of a UTF-8 string <code class="computeroutput">str</code> to match, and an associtated attribute <code class="computeroutput">x</code>, to the copy of the symbol table inside the parse context <code class="computeroutput">context</code>. </p>
 </li>
 <li class="listitem">
 <pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm21147-bb"></a><span class="identifier">erase</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> str<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
+  <span class="keyword">void</span> <a name="idm21448-bb"></a><span class="identifier">erase</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> str<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
 <p>Erases the entry whose UTF-8 match string is <code class="computeroutput">str</code> from the copy of the symbol table inside the parse context <code class="computeroutput">context</code>. </p>
 </li>
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-  <span class="identifier">T</span> <a name="idm21159-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="identifier">T</span> <a name="idm21460-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
          <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
          <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm21183-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="keyword">void</span> <a name="idm21484-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">,</span> <span class="identifier">Attribute</span> <span class="special">&amp;</span> retval<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><a class="link" href="symbol_parser.html" title="Struct template symbol_parser">symbol_parser</a> <span class="keyword">const</span> <span class="special">&amp;</span> <a name="idm21210-bb"></a><span class="identifier">ref</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a class="link" href="symbol_parser.html" title="Struct template symbol_parser">symbol_parser</a> <span class="keyword">const</span> <span class="special">&amp;</span> <a name="idm21511-bb"></a><span class="identifier">ref</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li>
 <li class="listitem"><pre class="literallayout"><span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special">&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">T</span> <span class="special">&gt;</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> 
-<a name="idm21213-bb"></a><span class="identifier">initial_elements</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li>
+<a name="idm21514-bb"></a><span class="identifier">initial_elements</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li>
 </ol></div>
 </div>
 </div>
diff --git a/doc/html/boost/parser/symbols.html b/doc/html/boost/parser/symbols.html
index 41d47a51..154d5239 100644
--- a/doc/html/boost/parser/symbols.html
+++ b/doc/html/boost/parser/symbols.html
@@ -26,57 +26,57 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> 
 <span class="keyword">struct</span> <a class="link" href="symbols.html" title="Struct template symbols">symbols</a> <span class="special">:</span> <span class="keyword">public</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">parser</span><span class="special">::</span><span class="identifier">parser_interface</span><span class="special">&lt;</span> <span class="identifier">symbol_parser</span><span class="special">&lt;</span> <span class="identifier">T</span> <span class="special">&gt;</span> <span class="special">&gt;</span> <span class="special">{</span>
   <span class="comment">// <a class="link" href="symbols.html#boost.parser.symbolsconstruct-copy-destruct">construct/copy/destruct</a></span>
-  <a class="link" href="symbols.html#idm21298-bb"><span class="identifier">symbols</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
-  <a class="link" href="symbols.html#idm21299-bb"><span class="identifier">symbols</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">initializer_list</span><span class="special">&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">T</span> <span class="special">&gt;</span> <span class="special">&gt;</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="symbols.html#idm21599-bb"><span class="identifier">symbols</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="symbols.html#idm21600-bb"><span class="identifier">symbols</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">initializer_list</span><span class="special">&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">T</span> <span class="special">&gt;</span> <span class="special">&gt;</span><span class="special">)</span><span class="special">;</span>
 
-  <span class="comment">// <a class="link" href="symbols.html#idm21233-bb">public member functions</a></span>
-  <a class="link" href="symbols.html" title="Struct template symbols">symbols</a> <span class="special">&amp;</span> <a class="link" href="symbols.html#idm21234-bb"><span class="identifier">insert_for_next_parse</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">T</span><span class="special">)</span><span class="special">;</span>
-  <a class="link" href="symbols.html" title="Struct template symbols">symbols</a> <span class="special">&amp;</span> <a class="link" href="symbols.html#idm21247-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">T</span><span class="special">)</span><span class="special">;</span>
+  <span class="comment">// <a class="link" href="symbols.html#idm21534-bb">public member functions</a></span>
+  <a class="link" href="symbols.html" title="Struct template symbols">symbols</a> <span class="special">&amp;</span> <a class="link" href="symbols.html#idm21535-bb"><span class="identifier">insert_for_next_parse</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">T</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="symbols.html" title="Struct template symbols">symbols</a> <span class="special">&amp;</span> <a class="link" href="symbols.html#idm21548-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">T</span><span class="special">)</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-    <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="symbols.html#idm21257-bb"><span class="identifier">find</span></a><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+    <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="symbols.html#idm21558-bb"><span class="identifier">find</span></a><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="symbols.html#idm21271-bb"><span class="identifier">insert</span></a><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">T</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+    <span class="keyword">void</span> <a class="link" href="symbols.html#idm21572-bb"><span class="identifier">insert</span></a><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">T</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="symbols.html#idm21286-bb"><span class="identifier">erase</span></a><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
+    <span class="keyword">void</span> <a class="link" href="symbols.html#idm21587-bb"><span class="identifier">erase</span></a><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm31866"></a><h2>Description</h2>
+<a name="idm32285"></a><h2>Description</h2>
 <p>A <code class="computeroutput">symbols&lt;T&gt;</code> represents the initial state of a symbol table parser that produces attributes of type <code class="computeroutput">T</code>. The entries in the symbol table can be changed during parsing, but those mutations to not affect the <code class="computeroutput">symbols&lt;T&gt;</code> object itself; all mutations happen to a copy of the symbol table in the parse context. For table entries that should be used during every parse, add entries via <code class="computeroutput">add()</code> or <code class="computeroutput">operator()</code>. For mid-parse mutations, use <code class="computeroutput">insert()</code> and <code class="computeroutput">erase()</code>. </p>
 <div class="refsect2">
-<a name="idm31876"></a><h3>
+<a name="idm32295"></a><h3>
 <a name="boost.parser.symbolsconstruct-copy-destruct"></a><code class="computeroutput">symbols</code> 
         public
        construct/copy/destruct</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
-<li class="listitem"><pre class="literallayout"><a name="idm21298-bb"></a><span class="identifier">symbols</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><a name="idm21299-bb"></a><span class="identifier">symbols</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">initializer_list</span><span class="special">&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">T</span> <span class="special">&gt;</span> <span class="special">&gt;</span> il<span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a name="idm21599-bb"></a><span class="identifier">symbols</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a name="idm21600-bb"></a><span class="identifier">symbols</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">initializer_list</span><span class="special">&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">T</span> <span class="special">&gt;</span> <span class="special">&gt;</span> il<span class="special">)</span><span class="special">;</span></pre></li>
 </ol></div>
 </div>
 <div class="refsect2">
-<a name="idm31912"></a><h3>
-<a name="idm21233-bb"></a><code class="computeroutput">symbols</code> public member functions</h3>
+<a name="idm32331"></a><h3>
+<a name="idm21534-bb"></a><code class="computeroutput">symbols</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
 <li class="listitem">
-<pre class="literallayout"><a class="link" href="symbols.html" title="Struct template symbols">symbols</a> <span class="special">&amp;</span> <a name="idm21234-bb"></a><span class="identifier">insert_for_next_parse</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> str<span class="special">,</span> <span class="identifier">T</span> x<span class="special">)</span><span class="special">;</span></pre>
+<pre class="literallayout"><a class="link" href="symbols.html" title="Struct template symbols">symbols</a> <span class="special">&amp;</span> <a name="idm21535-bb"></a><span class="identifier">insert_for_next_parse</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> str<span class="special">,</span> <span class="identifier">T</span> x<span class="special">)</span><span class="special">;</span></pre>
 <p>Adds an entry consisting of a UTF-8 string <code class="computeroutput">str</code> to match, and an associated attribute <code class="computeroutput">x</code>, to <code class="computeroutput">*this</code>. The entry is added for use in all subsequent top-level parses. Subsequent lookups during the current top-level parse will not match <code class="computeroutput">str</code>. </p>
 </li>
 <li class="listitem">
-<pre class="literallayout"><a class="link" href="symbols.html" title="Struct template symbols">symbols</a> <span class="special">&amp;</span> <a name="idm21247-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> str<span class="special">,</span> <span class="identifier">T</span> x<span class="special">)</span><span class="special">;</span></pre>
+<pre class="literallayout"><a class="link" href="symbols.html" title="Struct template symbols">symbols</a> <span class="special">&amp;</span> <a name="idm21548-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> str<span class="special">,</span> <span class="identifier">T</span> x<span class="special">)</span><span class="special">;</span></pre>
 <p>Equivalent to <code class="computeroutput">insert_for_next_parse(str, std::move(x))</code>. </p>
 </li>
 <li class="listitem">
 <pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-  <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a name="idm21257-bb"></a><span class="identifier">find</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> str<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
+  <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a name="idm21558-bb"></a><span class="identifier">find</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> str<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
 <p>Uses UTF-8 string <code class="computeroutput">str</code> to look up an attribute in the table during parsing, returning it as an optional reference. The lookup is done on the copy of the symbol table inside the parse context <code class="computeroutput">context</code>, not <code class="computeroutput">*this</code>. </p>
 </li>
 <li class="listitem">
 <pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm21271-bb"></a><span class="identifier">insert</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> str<span class="special">,</span> <span class="identifier">T</span> x<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
+  <span class="keyword">void</span> <a name="idm21572-bb"></a><span class="identifier">insert</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> str<span class="special">,</span> <span class="identifier">T</span> x<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
 <p>Inserts an entry consisting of a UTF-8 string to match <code class="computeroutput">str</code>, and an associtated attribute <code class="computeroutput">x</code>, to the copy of the symbol table inside the parse context <code class="computeroutput">context</code>. </p>
 </li>
 <li class="listitem">
 <pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm21286-bb"></a><span class="identifier">erase</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> str<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
+  <span class="keyword">void</span> <a name="idm21587-bb"></a><span class="identifier">erase</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> str<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
 <p>Erases the entry whose UTF-8 match string is <code class="computeroutput">str</code> from the copy of the symbol table inside the parse context <code class="computeroutput">context</code>. </p>
 </li>
 </ol></div>
diff --git a/doc/html/boost/parser/trace.html b/doc/html/boost/parser/trace.html
index 61ed1b29..f0e13dc5 100644
--- a/doc/html/boost/parser/trace.html
+++ b/doc/html/boost/parser/trace.html
@@ -7,12 +7,12 @@
 <link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
 <link rel="prev" href="zero_plus_parser.html" title="Struct template zero_plus_parser">
-<link rel="next" href="enable_optional.html" title="Global enable_optional">
+<link rel="next" href="container.html" title="Global container">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="zero_plus_parser.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="enable_optional.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="zero_plus_parser.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="container.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
 <a name="boost.parser.trace"></a><div class="titlepage"></div>
@@ -27,7 +27,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 <span class="keyword">enum</span> <span class="identifier">trace</span> <span class="special">{</span> on, off <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm32683"></a><h2>Description</h2>
+<a name="idm33102"></a><h2>Description</h2>
 <p>An enumeration used for parameters to enable and disable trace in the <code class="computeroutput">*parse()</code> functions. </p>
 </div>
 </div>
@@ -38,7 +38,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="zero_plus_parser.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="enable_optional.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="zero_plus_parser.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="container.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/tuple.html b/doc/html/boost/parser/tuple.html
index 381d8bc0..3889a8f3 100644
--- a/doc/html/boost/parser/tuple.html
+++ b/doc/html/boost/parser/tuple.html
@@ -6,13 +6,13 @@
 <meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
 <link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../header/boost/parser/tuple_hpp.html" title="Header &lt;boost/parser/tuple.hpp&gt;">
-<link rel="prev" href="literals/operator_c_idm23038.html" title='Function template operator""_c'>
+<link rel="prev" href="literals/operator_c_idm23370.html" title='Function template operator""_c'>
 <link rel="next" href="integral_constant.html" title="Type definition integral_constant">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="literals/operator_c_idm23038.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/tuple_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="integral_constant.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="literals/operator_c_idm23370.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/tuple_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="integral_constant.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
 <a name="boost.parser.tuple"></a><div class="titlepage"></div>
@@ -26,7 +26,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span>
 <span class="keyword">typedef</span> <span class="identifier">hana</span><span class="special">::</span><span class="identifier">tuple</span><span class="special">&lt;</span> <span class="identifier">Args</span><span class="special">...</span> <span class="special">&gt;</span> <span class="identifier">tuple</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm36859"></a><h2>Description</h2>
+<a name="idm37324"></a><h2>Description</h2>
 <p>The tuple template alias used within Boost.Parser. This will be <code class="computeroutput">boost::hana::tuple</code> unless <code class="computeroutput">BOOST_PARSER_DISABLE_HANA_TUPLE</code> is defined, in which case it is <code class="computeroutput">std::tuple</code>. </p>
 </div>
 </div>
@@ -37,7 +37,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="literals/operator_c_idm23038.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/tuple_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="integral_constant.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="literals/operator_c_idm23370.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/tuple_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="integral_constant.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/uint_.html b/doc/html/boost/parser/uint_.html
index 612fde86..3b3e3343 100644
--- a/doc/html/boost/parser/uint_.html
+++ b/doc/html/boost/parser/uint_.html
@@ -25,7 +25,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="keyword">constexpr</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <a class="link" href="uint_parser.html" title="Struct template uint_parser">uint_parser</a><span class="special">&lt;</span> <span class="keyword">unsigned</span> <span class="keyword">int</span> <span class="special">&gt;</span> <span class="special">&gt;</span> uint_<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm33233"></a><h2>Description</h2>
+<a name="idm33676"></a><h2>Description</h2>
 <p>The <code class="computeroutput">unsigned int</code> parser. Produces an <code class="computeroutput">unsigned int</code> attribute. To parse a particular value <code class="computeroutput">x</code>, use <code class="computeroutput">uint_(x)</code>. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/uint_parser.html b/doc/html/boost/parser/uint_parser.html
index 4512b095..3769a564 100644
--- a/doc/html/boost/parser/uint_parser.html
+++ b/doc/html/boost/parser/uint_parser.html
@@ -27,55 +27,55 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
          <span class="keyword">typename</span> Expected<span class="special">&gt;</span> 
 <span class="keyword">struct</span> <a class="link" href="uint_parser.html" title="Struct template uint_parser">uint_parser</a> <span class="special">{</span>
   <span class="comment">// <a class="link" href="uint_parser.html#boost.parser.uint_parserconstruct-copy-destruct">construct/copy/destruct</a></span>
-  <a class="link" href="uint_parser.html#idm21391-bb"><span class="identifier">uint_parser</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
-  <span class="keyword">explicit</span> <a class="link" href="uint_parser.html#idm21392-bb"><span class="identifier">uint_parser</span></a><span class="special">(</span><span class="identifier">Expected</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="uint_parser.html#idm21692-bb"><span class="identifier">uint_parser</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
+  <span class="keyword">explicit</span> <a class="link" href="uint_parser.html#idm21693-bb"><span class="identifier">uint_parser</span></a><span class="special">(</span><span class="identifier">Expected</span><span class="special">)</span><span class="special">;</span>
 
-  <span class="comment">// <a class="link" href="uint_parser.html#idm21326-bb">public member functions</a></span>
+  <span class="comment">// <a class="link" href="uint_parser.html#idm21627-bb">public member functions</a></span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-    <span class="identifier">T</span> <a class="link" href="uint_parser.html#idm21327-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="identifier">T</span> <a class="link" href="uint_parser.html#idm21628-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
            <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="uint_parser.html#idm21351-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">void</span> <a class="link" href="uint_parser.html#idm21652-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">,</span> 
               <span class="identifier">Attribute</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Expected2<span class="special">&gt;</span> 
-    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="uint_parser.html#idm21378-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">Expected2</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
+    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="uint_parser.html#idm21679-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">Expected2</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
 
   <span class="comment">// public data members</span>
   <span class="identifier">Expected</span> <span class="identifier">expected_</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm32190"></a><h2>Description</h2>
+<a name="idm32609"></a><h2>Description</h2>
 <p>Matches an unsigned number of radix <code class="computeroutput">Radix</code>, of at least <code class="computeroutput">MinDigits</code> and at most <code class="computeroutput">MaxDigits</code>, producing an attribute of type <code class="computeroutput">T</code>. Fails on any other input. The parse will also fail if <code class="computeroutput">Expected</code> is anything but <code class="computeroutput">detail::nope</code> (which it is by default), and the produced attribute is not equal to <code class="computeroutput">expected_</code>. <code class="computeroutput">Radix</code> must be in <code class="computeroutput">[2, 36]</code>. </p>
 <div class="refsect2">
-<a name="idm32202"></a><h3>
+<a name="idm32621"></a><h3>
 <a name="boost.parser.uint_parserconstruct-copy-destruct"></a><code class="computeroutput">uint_parser</code> 
         public
        construct/copy/destruct</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
-<li class="listitem"><pre class="literallayout"><a name="idm21391-bb"></a><span class="identifier">uint_parser</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><span class="keyword">explicit</span> <a name="idm21392-bb"></a><span class="identifier">uint_parser</span><span class="special">(</span><span class="identifier">Expected</span> expected<span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a name="idm21692-bb"></a><span class="identifier">uint_parser</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><span class="keyword">explicit</span> <a name="idm21693-bb"></a><span class="identifier">uint_parser</span><span class="special">(</span><span class="identifier">Expected</span> expected<span class="special">)</span><span class="special">;</span></pre></li>
 </ol></div>
 </div>
 <div class="refsect2">
-<a name="idm32225"></a><h3>
-<a name="idm21326-bb"></a><code class="computeroutput">uint_parser</code> public member functions</h3>
+<a name="idm32644"></a><h3>
+<a name="idm21627-bb"></a><code class="computeroutput">uint_parser</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-  <span class="identifier">T</span> <a name="idm21327-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="identifier">T</span> <a name="idm21628-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
          <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
          <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm21351-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="keyword">void</span> <a name="idm21652-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">,</span> <span class="identifier">Attribute</span> <span class="special">&amp;</span> retval<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 <li class="listitem">
 <pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Expected2<span class="special">&gt;</span> 
-  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm21378-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">Expected2</span> expected<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+  <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a name="idm21679-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">Expected2</span> expected<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code></code> containing a <code class="computeroutput"><code class="computeroutput"><a class="link" href="uint_parser.html" title="Struct template uint_parser">uint_parser</a></code></code> that matches the exact value <code class="computeroutput">expected</code>. </p>
 </li>
 </ol></div>
diff --git a/doc/html/boost/parser/ulong_.html b/doc/html/boost/parser/ulong_.html
index fa8ccd97..36402550 100644
--- a/doc/html/boost/parser/ulong_.html
+++ b/doc/html/boost/parser/ulong_.html
@@ -25,7 +25,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="keyword">constexpr</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <a class="link" href="uint_parser.html" title="Struct template uint_parser">uint_parser</a><span class="special">&lt;</span> <span class="keyword">unsigned</span> <span class="keyword">long</span> <span class="special">&gt;</span> <span class="special">&gt;</span> ulong_<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm33261"></a><h2>Description</h2>
+<a name="idm33704"></a><h2>Description</h2>
 <p>The <code class="computeroutput">unsigned long</code> parser. Produces an <code class="computeroutput">unsigned long</code> attribute. To parse a particular value <code class="computeroutput">x</code>, use <code class="computeroutput">ulong_(x)</code>. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/ulong_long.html b/doc/html/boost/parser/ulong_long.html
index 6a4a5e4f..b46df0d8 100644
--- a/doc/html/boost/parser/ulong_long.html
+++ b/doc/html/boost/parser/ulong_long.html
@@ -25,7 +25,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="keyword">constexpr</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <a class="link" href="uint_parser.html" title="Struct template uint_parser">uint_parser</a><span class="special">&lt;</span> <span class="keyword">unsigned</span> <span class="keyword">long</span> <span class="keyword">long</span> <span class="special">&gt;</span> <span class="special">&gt;</span> ulong_long<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm33290"></a><h2>Description</h2>
+<a name="idm33733"></a><h2>Description</h2>
 <p>The <code class="computeroutput">unsigned long long</code> parser. Produces an <code class="computeroutput">unsigned long long</code> attribute. To parse a particular value <code class="computeroutput">x</code>, use <code class="computeroutput">ulong_long(x)</code>. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/ushort_.html b/doc/html/boost/parser/ushort_.html
index 3d35fbe2..c7c90729 100644
--- a/doc/html/boost/parser/ushort_.html
+++ b/doc/html/boost/parser/ushort_.html
@@ -25,7 +25,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="keyword">constexpr</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <a class="link" href="uint_parser.html" title="Struct template uint_parser">uint_parser</a><span class="special">&lt;</span> <span class="keyword">unsigned</span> <span class="keyword">short</span> <span class="special">&gt;</span> <span class="special">&gt;</span> ushort_<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm33205"></a><h2>Description</h2>
+<a name="idm33648"></a><h2>Description</h2>
 <p>The <code class="computeroutput">unsigned short</code> parser. Produces an <code class="computeroutput">unsigned short</code> attribute. To parse a particular value <code class="computeroutput">x</code>, use <code class="computeroutput">ushort_(x)</code>. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/utf16_view.html b/doc/html/boost/parser/utf16_view.html
index e68d41b5..c87fbba6 100644
--- a/doc/html/boost/parser/utf16_view.html
+++ b/doc/html/boost/parser/utf16_view.html
@@ -27,20 +27,20 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 <span class="keyword">class</span> <a class="link" href="utf16_view.html" title="Class template utf16_view">utf16_view</a> <span class="special">{</span>
 <span class="keyword">public</span><span class="special">:</span>
   <span class="comment">// <a class="link" href="utf16_view.html#boost.parser.utf16_viewconstruct-copy-destruct">construct/copy/destruct</a></span>
-  <a class="link" href="utf16_view.html#idm22985-bb"><span class="identifier">utf16_view</span></a><span class="special">(</span><span class="special">)</span> <span class="special">=</span> <span class="keyword">default</span><span class="special">;</span>
-  <a class="link" href="utf16_view.html#idm22986-bb"><span class="identifier">utf16_view</span></a><span class="special">(</span><span class="identifier">V</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="utf16_view.html#idm23317-bb"><span class="identifier">utf16_view</span></a><span class="special">(</span><span class="special">)</span> <span class="special">=</span> <span class="keyword">default</span><span class="special">;</span>
+  <a class="link" href="utf16_view.html#idm23318-bb"><span class="identifier">utf16_view</span></a><span class="special">(</span><span class="identifier">V</span><span class="special">)</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm36507"></a><h2>Description</h2>
+<a name="idm36972"></a><h2>Description</h2>
 <p>A view that produces UTF-16 from an given sequence of UTF. </p>
 <div class="refsect2">
-<a name="idm36510"></a><h3>
+<a name="idm36975"></a><h3>
 <a name="boost.parser.utf16_viewconstruct-copy-destruct"></a><code class="computeroutput">utf16_view</code> 
         public
        construct/copy/destruct</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
-<li class="listitem"><pre class="literallayout"><a name="idm22985-bb"></a><span class="identifier">utf16_view</span><span class="special">(</span><span class="special">)</span> <span class="special">=</span> <span class="keyword">default</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><a name="idm22986-bb"></a><span class="identifier">utf16_view</span><span class="special">(</span><span class="identifier">V</span> base<span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a name="idm23317-bb"></a><span class="identifier">utf16_view</span><span class="special">(</span><span class="special">)</span> <span class="special">=</span> <span class="keyword">default</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a name="idm23318-bb"></a><span class="identifier">utf16_view</span><span class="special">(</span><span class="identifier">V</span> base<span class="special">)</span><span class="special">;</span></pre></li>
 </ol></div>
 </div>
 </div>
diff --git a/doc/html/boost/parser/utf32_view.html b/doc/html/boost/parser/utf32_view.html
index d6c261ed..2ef0168f 100644
--- a/doc/html/boost/parser/utf32_view.html
+++ b/doc/html/boost/parser/utf32_view.html
@@ -27,20 +27,20 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 <span class="keyword">class</span> <a class="link" href="utf32_view.html" title="Class template utf32_view">utf32_view</a> <span class="special">{</span>
 <span class="keyword">public</span><span class="special">:</span>
   <span class="comment">// <a class="link" href="utf32_view.html#boost.parser.utf32_viewconstruct-copy-destruct">construct/copy/destruct</a></span>
-  <a class="link" href="utf32_view.html#idm22997-bb"><span class="identifier">utf32_view</span></a><span class="special">(</span><span class="special">)</span> <span class="special">=</span> <span class="keyword">default</span><span class="special">;</span>
-  <a class="link" href="utf32_view.html#idm22998-bb"><span class="identifier">utf32_view</span></a><span class="special">(</span><span class="identifier">V</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="utf32_view.html#idm23329-bb"><span class="identifier">utf32_view</span></a><span class="special">(</span><span class="special">)</span> <span class="special">=</span> <span class="keyword">default</span><span class="special">;</span>
+  <a class="link" href="utf32_view.html#idm23330-bb"><span class="identifier">utf32_view</span></a><span class="special">(</span><span class="identifier">V</span><span class="special">)</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm36571"></a><h2>Description</h2>
+<a name="idm37036"></a><h2>Description</h2>
 <p>A view that produces UTF-32 from an given sequence of UTF. </p>
 <div class="refsect2">
-<a name="idm36574"></a><h3>
+<a name="idm37039"></a><h3>
 <a name="boost.parser.utf32_viewconstruct-copy-destruct"></a><code class="computeroutput">utf32_view</code> 
         public
        construct/copy/destruct</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
-<li class="listitem"><pre class="literallayout"><a name="idm22997-bb"></a><span class="identifier">utf32_view</span><span class="special">(</span><span class="special">)</span> <span class="special">=</span> <span class="keyword">default</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><a name="idm22998-bb"></a><span class="identifier">utf32_view</span><span class="special">(</span><span class="identifier">V</span> base<span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a name="idm23329-bb"></a><span class="identifier">utf32_view</span><span class="special">(</span><span class="special">)</span> <span class="special">=</span> <span class="keyword">default</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a name="idm23330-bb"></a><span class="identifier">utf32_view</span><span class="special">(</span><span class="identifier">V</span> base<span class="special">)</span><span class="special">;</span></pre></li>
 </ol></div>
 </div>
 </div>
diff --git a/doc/html/boost/parser/utf8_view.html b/doc/html/boost/parser/utf8_view.html
index 8c753bdc..db2122f6 100644
--- a/doc/html/boost/parser/utf8_view.html
+++ b/doc/html/boost/parser/utf8_view.html
@@ -27,20 +27,20 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 <span class="keyword">class</span> <a class="link" href="utf8_view.html" title="Class template utf8_view">utf8_view</a> <span class="special">{</span>
 <span class="keyword">public</span><span class="special">:</span>
   <span class="comment">// <a class="link" href="utf8_view.html#boost.parser.utf8_viewconstruct-copy-destruct">construct/copy/destruct</a></span>
-  <a class="link" href="utf8_view.html#idm23009-bb"><span class="identifier">utf8_view</span></a><span class="special">(</span><span class="special">)</span> <span class="special">=</span> <span class="keyword">default</span><span class="special">;</span>
-  <a class="link" href="utf8_view.html#idm23010-bb"><span class="identifier">utf8_view</span></a><span class="special">(</span><span class="identifier">V</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="utf8_view.html#idm23341-bb"><span class="identifier">utf8_view</span></a><span class="special">(</span><span class="special">)</span> <span class="special">=</span> <span class="keyword">default</span><span class="special">;</span>
+  <a class="link" href="utf8_view.html#idm23342-bb"><span class="identifier">utf8_view</span></a><span class="special">(</span><span class="identifier">V</span><span class="special">)</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm36635"></a><h2>Description</h2>
+<a name="idm37100"></a><h2>Description</h2>
 <p>A view that produces UTF-8 from an given sequence of UTF. </p>
 <div class="refsect2">
-<a name="idm36638"></a><h3>
+<a name="idm37103"></a><h3>
 <a name="boost.parser.utf8_viewconstruct-copy-destruct"></a><code class="computeroutput">utf8_view</code> 
         public
        construct/copy/destruct</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
-<li class="listitem"><pre class="literallayout"><a name="idm23009-bb"></a><span class="identifier">utf8_view</span><span class="special">(</span><span class="special">)</span> <span class="special">=</span> <span class="keyword">default</span><span class="special">;</span></pre></li>
-<li class="listitem"><pre class="literallayout"><a name="idm23010-bb"></a><span class="identifier">utf8_view</span><span class="special">(</span><span class="identifier">V</span> base<span class="special">)</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a name="idm23341-bb"></a><span class="identifier">utf8_view</span><span class="special">(</span><span class="special">)</span> <span class="special">=</span> <span class="keyword">default</span><span class="special">;</span></pre></li>
+<li class="listitem"><pre class="literallayout"><a name="idm23342-bb"></a><span class="identifier">utf8_view</span><span class="special">(</span><span class="identifier">V</span> base<span class="special">)</span><span class="special">;</span></pre></li>
 </ol></div>
 </div>
 </div>
diff --git a/doc/html/boost/parser/with_error_handler.html b/doc/html/boost/parser/with_error_handler.html
index df3bbddc..5a8ecf26 100644
--- a/doc/html/boost/parser/with_error_handler.html
+++ b/doc/html/boost/parser/with_error_handler.html
@@ -7,12 +7,12 @@
 <link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
 <link rel="prev" href="with_globals.html" title="Function template with_globals">
-<link rel="next" href="repeat_idm22114.html" title="Function template repeat">
+<link rel="next" href="repeat_idm22441.html" title="Function template repeat">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="with_globals.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="repeat_idm22114.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="with_globals.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="repeat_idm22441.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
 <a name="boost.parser.with_error_handler"></a><div class="titlepage"></div>
@@ -28,7 +28,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
   <span class="keyword">auto</span> <span class="identifier">with_error_handler</span><span class="special">(</span><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <a class="link" href="default_error_handler.html" title="Struct default_error_handler">default_error_handler</a> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> parser<span class="special">,</span> 
                           <span class="identifier">ErrorHandler</span> <span class="special">&amp;</span> error_handler<span class="special">)</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm33900"></a><h2>Description</h2>
+<a name="idm34343"></a><h2>Description</h2>
 <p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code></code> with the same parser and globals, with <code class="computeroutput">error_handler</code> added. The resut of passing any non-top-level parser for the <code class="computeroutput">parser</code> argument is undefined. </p>
 </div>
 </div>
@@ -39,7 +39,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="with_globals.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="repeat_idm22114.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="with_globals.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="repeat_idm22441.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/with_globals.html b/doc/html/boost/parser/with_globals.html
index ab87a74d..f6282a02 100644
--- a/doc/html/boost/parser/with_globals.html
+++ b/doc/html/boost/parser/with_globals.html
@@ -6,13 +6,13 @@
 <meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
 <link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<link rel="prev" href="report_warning_idm22039.html" title="Function template _report_warning">
+<link rel="prev" href="report_warning_idm22366.html" title="Function template _report_warning">
 <link rel="next" href="with_error_handler.html" title="Function template with_error_handler">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="report_warning_idm22039.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="with_error_handler.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="report_warning_idm22366.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="with_error_handler.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
 <a name="boost.parser.with_globals"></a><div class="titlepage"></div>
@@ -27,7 +27,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> <span class="keyword">typename</span> ErrorHandler<span class="special">&gt;</span> 
   <span class="keyword">auto</span> <span class="identifier">with_globals</span><span class="special">(</span><span class="emphasis"><em><span class="identifier">unspecified</span></em></span> parser<span class="special">,</span> <span class="identifier">GlobalState</span> <span class="special">&amp;</span> globals<span class="special">)</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm33855"></a><h2>Description</h2>
+<a name="idm34298"></a><h2>Description</h2>
 <p>Returns a <code class="computeroutput"><code class="computeroutput"><a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a></code></code> with the same parser and error handler, with <code class="computeroutput">globals</code> added. The resut of passing any non-top-level parser for the <code class="computeroutput">parser</code> argument is undefined. </p>
 </div>
 </div>
@@ -38,7 +38,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="report_warning_idm22039.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="with_error_handler.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="report_warning_idm22366.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="with_error_handler.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/write_formatted_e_idm18329.html b/doc/html/boost/parser/write_formatted_e_idm18329.html
deleted file mode 100644
index 612079a0..00000000
--- a/doc/html/boost/parser/write_formatted_e_idm18329.html
+++ /dev/null
@@ -1,51 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template write_formatted_expectation_failure_error_message</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/error_handling_hpp.html" title="Header &lt;boost/parser/error_handling.hpp&gt;">
-<link rel="prev" href="write_formatted_m_idm18303.html" title="Function template write_formatted_message">
-<link rel="next" href="find_line_position.html" title="Function template find_line_position">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="write_formatted_m_idm18303.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="find_line_position.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.write_formatted_e_idm18329"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template write_formatted_expectation_failure_error_message</span></h2>
-<p>boost::parser::write_formatted_expectation_failure_error_message</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/error_handling_hpp.html" title="Header &lt;boost/parser/error_handling.hpp&gt;">boost/parser/error_handling.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">&gt;</span> 
-  <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> 
-  <span class="identifier">write_formatted_expectation_failure_error_message</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> os<span class="special">,</span> 
-                                                    <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> filename<span class="special">,</span> 
-                                                    <span class="identifier">Iter</span> first<span class="special">,</span> 
-                                                    <span class="identifier">Sentinel</span> last<span class="special">,</span> 
-                                                    <a class="link" href="parse_error.html" title="Struct template parse_error">parse_error</a><span class="special">&lt;</span> <span class="identifier">Iter</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> e<span class="special">,</span> 
-                                                    <span class="identifier">int64_t</span> preferred_max_line_length <span class="special">=</span> <span class="number">80</span><span class="special">,</span> 
-                                                    <span class="identifier">int64_t</span> max_after_caret <span class="special">=</span> <span class="number">40</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm18013"></a><h2>Description</h2>
-<p>Writes a formatted parse-expectation failure (meaning prefixed with the file name, line, and column number) to <code class="computeroutput">os</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="write_formatted_m_idm18303.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="find_line_position.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/write_formatted_e_idm18331.html b/doc/html/boost/parser/write_formatted_e_idm18331.html
deleted file mode 100644
index 2838c1f3..00000000
--- a/doc/html/boost/parser/write_formatted_e_idm18331.html
+++ /dev/null
@@ -1,51 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template write_formatted_expectation_failure_error_message</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/error_handling_hpp.html" title="Header &lt;boost/parser/error_handling.hpp&gt;">
-<link rel="prev" href="write_formatted_m_idm18305.html" title="Function template write_formatted_message">
-<link rel="next" href="find_line_position.html" title="Function template find_line_position">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="write_formatted_m_idm18305.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="find_line_position.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.write_formatted_e_idm18331"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template write_formatted_expectation_failure_error_message</span></h2>
-<p>boost::parser::write_formatted_expectation_failure_error_message</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/error_handling_hpp.html" title="Header &lt;boost/parser/error_handling.hpp&gt;">boost/parser/error_handling.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">&gt;</span> 
-  <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> 
-  <span class="identifier">write_formatted_expectation_failure_error_message</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> os<span class="special">,</span> 
-                                                    <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> filename<span class="special">,</span> 
-                                                    <span class="identifier">Iter</span> first<span class="special">,</span> 
-                                                    <span class="identifier">Sentinel</span> last<span class="special">,</span> 
-                                                    <a class="link" href="parse_error.html" title="Struct template parse_error">parse_error</a><span class="special">&lt;</span> <span class="identifier">Iter</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> e<span class="special">,</span> 
-                                                    <span class="identifier">int64_t</span> preferred_max_line_length <span class="special">=</span> <span class="number">80</span><span class="special">,</span> 
-                                                    <span class="identifier">int64_t</span> max_after_caret <span class="special">=</span> <span class="number">40</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm18015"></a><h2>Description</h2>
-<p>Writes a formatted parse-expectation failure (meaning prefixed with the file name, line, and column number) to <code class="computeroutput">os</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="write_formatted_m_idm18305.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="find_line_position.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/write_formatted_e_idm18332.html b/doc/html/boost/parser/write_formatted_e_idm18332.html
deleted file mode 100644
index 2ce1e3b7..00000000
--- a/doc/html/boost/parser/write_formatted_e_idm18332.html
+++ /dev/null
@@ -1,51 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template write_formatted_expectation_failure_error_message</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/error_handling_hpp.html" title="Header &lt;boost/parser/error_handling.hpp&gt;">
-<link rel="prev" href="write_formatted_m_idm18306.html" title="Function template write_formatted_message">
-<link rel="next" href="find_line_position.html" title="Function template find_line_position">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="write_formatted_m_idm18306.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="find_line_position.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.write_formatted_e_idm18332"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template write_formatted_expectation_failure_error_message</span></h2>
-<p>boost::parser::write_formatted_expectation_failure_error_message</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/error_handling_hpp.html" title="Header &lt;boost/parser/error_handling.hpp&gt;">boost/parser/error_handling.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">&gt;</span> 
-  <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> 
-  <span class="identifier">write_formatted_expectation_failure_error_message</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> os<span class="special">,</span> 
-                                                    <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> filename<span class="special">,</span> 
-                                                    <span class="identifier">Iter</span> first<span class="special">,</span> 
-                                                    <span class="identifier">Sentinel</span> last<span class="special">,</span> 
-                                                    <a class="link" href="parse_error.html" title="Struct template parse_error">parse_error</a><span class="special">&lt;</span> <span class="identifier">Iter</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> e<span class="special">,</span> 
-                                                    <span class="identifier">int64_t</span> preferred_max_line_length <span class="special">=</span> <span class="number">80</span><span class="special">,</span> 
-                                                    <span class="identifier">int64_t</span> max_after_caret <span class="special">=</span> <span class="number">40</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm18016"></a><h2>Description</h2>
-<p>Writes a formatted parse-expectation failure (meaning prefixed with the file name, line, and column number) to <code class="computeroutput">os</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="write_formatted_m_idm18306.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="find_line_position.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/write_formatted_e_idm18333.html b/doc/html/boost/parser/write_formatted_e_idm18333.html
deleted file mode 100644
index 85694e16..00000000
--- a/doc/html/boost/parser/write_formatted_e_idm18333.html
+++ /dev/null
@@ -1,51 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template write_formatted_expectation_failure_error_message</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/error_handling_hpp.html" title="Header &lt;boost/parser/error_handling.hpp&gt;">
-<link rel="prev" href="write_formatted_m_idm18307.html" title="Function template write_formatted_message">
-<link rel="next" href="find_line_position.html" title="Function template find_line_position">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="write_formatted_m_idm18307.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="find_line_position.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.write_formatted_e_idm18333"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template write_formatted_expectation_failure_error_message</span></h2>
-<p>boost::parser::write_formatted_expectation_failure_error_message</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/error_handling_hpp.html" title="Header &lt;boost/parser/error_handling.hpp&gt;">boost/parser/error_handling.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">&gt;</span> 
-  <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> 
-  <span class="identifier">write_formatted_expectation_failure_error_message</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> os<span class="special">,</span> 
-                                                    <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> filename<span class="special">,</span> 
-                                                    <span class="identifier">Iter</span> first<span class="special">,</span> 
-                                                    <span class="identifier">Sentinel</span> last<span class="special">,</span> 
-                                                    <a class="link" href="parse_error.html" title="Struct template parse_error">parse_error</a><span class="special">&lt;</span> <span class="identifier">Iter</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> e<span class="special">,</span> 
-                                                    <span class="identifier">int64_t</span> preferred_max_line_length <span class="special">=</span> <span class="number">80</span><span class="special">,</span> 
-                                                    <span class="identifier">int64_t</span> max_after_caret <span class="special">=</span> <span class="number">40</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm18016"></a><h2>Description</h2>
-<p>Writes a formatted parse-expectation failure (meaning prefixed with the file name, line, and column number) to <code class="computeroutput">os</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="write_formatted_m_idm18307.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="find_line_position.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/write_formatted_e_idm18349.html b/doc/html/boost/parser/write_formatted_e_idm18349.html
deleted file mode 100644
index 85266441..00000000
--- a/doc/html/boost/parser/write_formatted_e_idm18349.html
+++ /dev/null
@@ -1,51 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template write_formatted_expectation_failure_error_message</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/error_handling_hpp.html" title="Header &lt;boost/parser/error_handling.hpp&gt;">
-<link rel="prev" href="write_formatted_m_idm18323.html" title="Function template write_formatted_message">
-<link rel="next" href="find_line_position.html" title="Function template find_line_position">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="write_formatted_m_idm18323.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="find_line_position.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.write_formatted_e_idm18349"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template write_formatted_expectation_failure_error_message</span></h2>
-<p>boost::parser::write_formatted_expectation_failure_error_message</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/error_handling_hpp.html" title="Header &lt;boost/parser/error_handling.hpp&gt;">boost/parser/error_handling.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">&gt;</span> 
-  <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> 
-  <span class="identifier">write_formatted_expectation_failure_error_message</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> os<span class="special">,</span> 
-                                                    <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> filename<span class="special">,</span> 
-                                                    <span class="identifier">Iter</span> first<span class="special">,</span> 
-                                                    <span class="identifier">Sentinel</span> last<span class="special">,</span> 
-                                                    <a class="link" href="parse_error.html" title="Struct template parse_error">parse_error</a><span class="special">&lt;</span> <span class="identifier">Iter</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> e<span class="special">,</span> 
-                                                    <span class="identifier">int64_t</span> preferred_max_line_length <span class="special">=</span> <span class="number">80</span><span class="special">,</span> 
-                                                    <span class="identifier">int64_t</span> max_after_caret <span class="special">=</span> <span class="number">40</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm18032"></a><h2>Description</h2>
-<p>Writes a formatted parse-expectation failure (meaning prefixed with the file name, line, and column number) to <code class="computeroutput">os</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="write_formatted_m_idm18323.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="find_line_position.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/write_formatted_e_idm18614.html b/doc/html/boost/parser/write_formatted_e_idm18614.html
deleted file mode 100644
index 0fb3bc49..00000000
--- a/doc/html/boost/parser/write_formatted_e_idm18614.html
+++ /dev/null
@@ -1,51 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template write_formatted_expectation_failure_error_message</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/error_handling_fwd_hpp.html" title="Header &lt;boost/parser/error_handling_fwd.hpp&gt;">
-<link rel="prev" href="write_formatted_m_idm18588.html" title="Function template write_formatted_message">
-<link rel="next" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="write_formatted_m_idm18588.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.write_formatted_e_idm18614"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template write_formatted_expectation_failure_error_message</span></h2>
-<p>boost::parser::write_formatted_expectation_failure_error_message</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/error_handling_fwd_hpp.html" title="Header &lt;boost/parser/error_handling_fwd.hpp&gt;">boost/parser/error_handling_fwd.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">&gt;</span> 
-  <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> 
-  <span class="identifier">write_formatted_expectation_failure_error_message</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> os<span class="special">,</span> 
-                                                    <span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring_view</span> filename<span class="special">,</span> 
-                                                    <span class="identifier">Iter</span> first<span class="special">,</span> 
-                                                    <span class="identifier">Sentinel</span> last<span class="special">,</span> 
-                                                    <a class="link" href="parse_error.html" title="Struct template parse_error">parse_error</a><span class="special">&lt;</span> <span class="identifier">Iter</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> e<span class="special">,</span> 
-                                                    <span class="identifier">int64_t</span> preferred_max_line_length <span class="special">=</span> <span class="number">80</span><span class="special">,</span> 
-                                                    <span class="identifier">int64_t</span> max_after_caret <span class="special">=</span> <span class="number">40</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm19071"></a><h2>Description</h2>
-<p>Writes a formatted parse-expectation failure (meaning prefixed with the file name, line, and column number) to <code class="computeroutput">os</code>. This overload is Windows-only. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="write_formatted_m_idm18588.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/write_formatted_e_idm18616.html b/doc/html/boost/parser/write_formatted_e_idm18616.html
deleted file mode 100644
index 8303d032..00000000
--- a/doc/html/boost/parser/write_formatted_e_idm18616.html
+++ /dev/null
@@ -1,51 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template write_formatted_expectation_failure_error_message</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/error_handling_fwd_hpp.html" title="Header &lt;boost/parser/error_handling_fwd.hpp&gt;">
-<link rel="prev" href="write_formatted_m_idm18590.html" title="Function template write_formatted_message">
-<link rel="next" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="write_formatted_m_idm18590.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.write_formatted_e_idm18616"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template write_formatted_expectation_failure_error_message</span></h2>
-<p>boost::parser::write_formatted_expectation_failure_error_message</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/error_handling_fwd_hpp.html" title="Header &lt;boost/parser/error_handling_fwd.hpp&gt;">boost/parser/error_handling_fwd.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">&gt;</span> 
-  <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> 
-  <span class="identifier">write_formatted_expectation_failure_error_message</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> os<span class="special">,</span> 
-                                                    <span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring_view</span> filename<span class="special">,</span> 
-                                                    <span class="identifier">Iter</span> first<span class="special">,</span> 
-                                                    <span class="identifier">Sentinel</span> last<span class="special">,</span> 
-                                                    <a class="link" href="parse_error.html" title="Struct template parse_error">parse_error</a><span class="special">&lt;</span> <span class="identifier">Iter</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> e<span class="special">,</span> 
-                                                    <span class="identifier">int64_t</span> preferred_max_line_length <span class="special">=</span> <span class="number">80</span><span class="special">,</span> 
-                                                    <span class="identifier">int64_t</span> max_after_caret <span class="special">=</span> <span class="number">40</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm19073"></a><h2>Description</h2>
-<p>Writes a formatted parse-expectation failure (meaning prefixed with the file name, line, and column number) to <code class="computeroutput">os</code>. This overload is Windows-only. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
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diff --git a/doc/html/boost/parser/write_formatted_e_idm18617.html b/doc/html/boost/parser/write_formatted_e_idm18617.html
deleted file mode 100644
index 24bb5398..00000000
--- a/doc/html/boost/parser/write_formatted_e_idm18617.html
+++ /dev/null
@@ -1,51 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template write_formatted_expectation_failure_error_message</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
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-<link rel="prev" href="write_formatted_m_idm18591.html" title="Function template write_formatted_message">
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-<meta name="viewport" content="width=device-width, initial-scale=1">
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-<a accesskey="p" href="write_formatted_m_idm18591.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.write_formatted_e_idm18617"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template write_formatted_expectation_failure_error_message</span></h2>
-<p>boost::parser::write_formatted_expectation_failure_error_message</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/error_handling_fwd_hpp.html" title="Header &lt;boost/parser/error_handling_fwd.hpp&gt;">boost/parser/error_handling_fwd.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">&gt;</span> 
-  <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> 
-  <span class="identifier">write_formatted_expectation_failure_error_message</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> os<span class="special">,</span> 
-                                                    <span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring_view</span> filename<span class="special">,</span> 
-                                                    <span class="identifier">Iter</span> first<span class="special">,</span> 
-                                                    <span class="identifier">Sentinel</span> last<span class="special">,</span> 
-                                                    <a class="link" href="parse_error.html" title="Struct template parse_error">parse_error</a><span class="special">&lt;</span> <span class="identifier">Iter</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> e<span class="special">,</span> 
-                                                    <span class="identifier">int64_t</span> preferred_max_line_length <span class="special">=</span> <span class="number">80</span><span class="special">,</span> 
-                                                    <span class="identifier">int64_t</span> max_after_caret <span class="special">=</span> <span class="number">40</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm19074"></a><h2>Description</h2>
-<p>Writes a formatted parse-expectation failure (meaning prefixed with the file name, line, and column number) to <code class="computeroutput">os</code>. This overload is Windows-only. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="write_formatted_m_idm18591.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/write_formatted_e_idm18618.html b/doc/html/boost/parser/write_formatted_e_idm18618.html
deleted file mode 100644
index 81aad711..00000000
--- a/doc/html/boost/parser/write_formatted_e_idm18618.html
+++ /dev/null
@@ -1,51 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template write_formatted_expectation_failure_error_message</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
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-<link rel="prev" href="write_formatted_m_idm18592.html" title="Function template write_formatted_message">
-<link rel="next" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="write_formatted_m_idm18592.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.write_formatted_e_idm18618"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template write_formatted_expectation_failure_error_message</span></h2>
-<p>boost::parser::write_formatted_expectation_failure_error_message</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/error_handling_fwd_hpp.html" title="Header &lt;boost/parser/error_handling_fwd.hpp&gt;">boost/parser/error_handling_fwd.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">&gt;</span> 
-  <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> 
-  <span class="identifier">write_formatted_expectation_failure_error_message</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> os<span class="special">,</span> 
-                                                    <span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring_view</span> filename<span class="special">,</span> 
-                                                    <span class="identifier">Iter</span> first<span class="special">,</span> 
-                                                    <span class="identifier">Sentinel</span> last<span class="special">,</span> 
-                                                    <a class="link" href="parse_error.html" title="Struct template parse_error">parse_error</a><span class="special">&lt;</span> <span class="identifier">Iter</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> e<span class="special">,</span> 
-                                                    <span class="identifier">int64_t</span> preferred_max_line_length <span class="special">=</span> <span class="number">80</span><span class="special">,</span> 
-                                                    <span class="identifier">int64_t</span> max_after_caret <span class="special">=</span> <span class="number">40</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm19074"></a><h2>Description</h2>
-<p>Writes a formatted parse-expectation failure (meaning prefixed with the file name, line, and column number) to <code class="computeroutput">os</code>. This overload is Windows-only. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="write_formatted_m_idm18592.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/write_formatted_e_idm18327.html b/doc/html/boost/parser/write_formatted_e_idm18619.html
similarity index 93%
rename from doc/html/boost/parser/write_formatted_e_idm18327.html
rename to doc/html/boost/parser/write_formatted_e_idm18619.html
index c0d3c10d..f658dca1 100644
--- a/doc/html/boost/parser/write_formatted_e_idm18327.html
+++ b/doc/html/boost/parser/write_formatted_e_idm18619.html
@@ -6,16 +6,16 @@
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 <link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../header/boost/parser/error_handling_hpp.html" title="Header &lt;boost/parser/error_handling.hpp&gt;">
-<link rel="prev" href="write_formatted_m_idm18301.html" title="Function template write_formatted_message">
+<link rel="prev" href="write_formatted_m_idm18593.html" title="Function template write_formatted_message">
 <link rel="next" href="find_line_position.html" title="Function template find_line_position">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="write_formatted_m_idm18301.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="find_line_position.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="write_formatted_m_idm18593.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="find_line_position.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
-<a name="boost.parser.write_formatted_e_idm18327"></a><div class="titlepage"></div>
+<a name="boost.parser.write_formatted_e_idm18619"></a><div class="titlepage"></div>
 <div class="refnamediv">
 <h2><span class="refentrytitle">Function template write_formatted_expectation_failure_error_message</span></h2>
 <p>boost::parser::write_formatted_expectation_failure_error_message</p>
@@ -34,7 +34,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
                                                     <span class="identifier">int64_t</span> preferred_max_line_length <span class="special">=</span> <span class="number">80</span><span class="special">,</span> 
                                                     <span class="identifier">int64_t</span> max_after_caret <span class="special">=</span> <span class="number">40</span><span class="special">)</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm18011"></a><h2>Description</h2>
+<a name="idm18258"></a><h2>Description</h2>
 <p>Writes a formatted parse-expectation failure (meaning prefixed with the file name, line, and column number) to <code class="computeroutput">os</code>. </p>
 </div>
 </div>
@@ -45,7 +45,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="write_formatted_m_idm18301.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="find_line_position.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="write_formatted_m_idm18593.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="find_line_position.html"><img src="../../images/next.png" alt="Next"></a>
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 </body>
 </html>
diff --git a/doc/html/boost/parser/write_formatted_e_idm18634.html b/doc/html/boost/parser/write_formatted_e_idm18634.html
deleted file mode 100644
index 748f6d89..00000000
--- a/doc/html/boost/parser/write_formatted_e_idm18634.html
+++ /dev/null
@@ -1,51 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template write_formatted_expectation_failure_error_message</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/error_handling_fwd_hpp.html" title="Header &lt;boost/parser/error_handling_fwd.hpp&gt;">
-<link rel="prev" href="write_formatted_m_idm18608.html" title="Function template write_formatted_message">
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-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
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-<a accesskey="p" href="write_formatted_m_idm18608.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.write_formatted_e_idm18634"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template write_formatted_expectation_failure_error_message</span></h2>
-<p>boost::parser::write_formatted_expectation_failure_error_message</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/error_handling_fwd_hpp.html" title="Header &lt;boost/parser/error_handling_fwd.hpp&gt;">boost/parser/error_handling_fwd.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">&gt;</span> 
-  <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> 
-  <span class="identifier">write_formatted_expectation_failure_error_message</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> os<span class="special">,</span> 
-                                                    <span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring_view</span> filename<span class="special">,</span> 
-                                                    <span class="identifier">Iter</span> first<span class="special">,</span> 
-                                                    <span class="identifier">Sentinel</span> last<span class="special">,</span> 
-                                                    <a class="link" href="parse_error.html" title="Struct template parse_error">parse_error</a><span class="special">&lt;</span> <span class="identifier">Iter</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> e<span class="special">,</span> 
-                                                    <span class="identifier">int64_t</span> preferred_max_line_length <span class="special">=</span> <span class="number">80</span><span class="special">,</span> 
-                                                    <span class="identifier">int64_t</span> max_after_caret <span class="special">=</span> <span class="number">40</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm19090"></a><h2>Description</h2>
-<p>Writes a formatted parse-expectation failure (meaning prefixed with the file name, line, and column number) to <code class="computeroutput">os</code>. This overload is Windows-only. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="write_formatted_m_idm18608.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/write_formatted_e_idm18612.html b/doc/html/boost/parser/write_formatted_e_idm18904.html
similarity index 93%
rename from doc/html/boost/parser/write_formatted_e_idm18612.html
rename to doc/html/boost/parser/write_formatted_e_idm18904.html
index b1d74baa..9f87ce51 100644
--- a/doc/html/boost/parser/write_formatted_e_idm18612.html
+++ b/doc/html/boost/parser/write_formatted_e_idm18904.html
@@ -6,16 +6,16 @@
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 <link rel="up" href="../../header/boost/parser/error_handling_fwd_hpp.html" title="Header &lt;boost/parser/error_handling_fwd.hpp&gt;">
-<link rel="prev" href="write_formatted_m_idm18586.html" title="Function template write_formatted_message">
+<link rel="prev" href="write_formatted_m_idm18878.html" title="Function template write_formatted_message">
 <link rel="next" href="../../header/boost/parser/parser_hpp.html" title="Header &lt;boost/parser/parser.hpp&gt;">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
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-<a accesskey="p" href="write_formatted_m_idm18586.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="write_formatted_m_idm18878.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="../../header/boost/parser/parser_hpp.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
-<a name="boost.parser.write_formatted_e_idm18612"></a><div class="titlepage"></div>
+<a name="boost.parser.write_formatted_e_idm18904"></a><div class="titlepage"></div>
 <div class="refnamediv">
 <h2><span class="refentrytitle">Function template write_formatted_expectation_failure_error_message</span></h2>
 <p>boost::parser::write_formatted_expectation_failure_error_message</p>
@@ -34,7 +34,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
                                                     <span class="identifier">int64_t</span> preferred_max_line_length <span class="special">=</span> <span class="number">80</span><span class="special">,</span> 
                                                     <span class="identifier">int64_t</span> max_after_caret <span class="special">=</span> <span class="number">40</span><span class="special">)</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm19069"></a><h2>Description</h2>
+<a name="idm19316"></a><h2>Description</h2>
 <p>Writes a formatted parse-expectation failure (meaning prefixed with the file name, line, and column number) to <code class="computeroutput">os</code>. This overload is Windows-only. </p>
 </div>
 </div>
@@ -45,7 +45,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
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 <div class="spirit-nav">
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diff --git a/doc/html/boost/parser/write_formatted_m_idm18303.html b/doc/html/boost/parser/write_formatted_m_idm18303.html
deleted file mode 100644
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--- a/doc/html/boost/parser/write_formatted_m_idm18303.html
+++ /dev/null
@@ -1,49 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template write_formatted_message</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
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-</div>
-<div class="refentry">
-<a name="boost.parser.write_formatted_m_idm18303"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template write_formatted_message</span></h2>
-<p>boost::parser::write_formatted_message</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/error_handling_hpp.html" title="Header &lt;boost/parser/error_handling.hpp&gt;">boost/parser/error_handling.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">&gt;</span> 
-  <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> 
-  <span class="identifier">write_formatted_message</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> os<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> filename<span class="special">,</span> 
-                          <span class="identifier">Iter</span> first<span class="special">,</span> <span class="identifier">Iter</span> it<span class="special">,</span> <span class="identifier">Sentinel</span> last<span class="special">,</span> 
-                          <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
-                          <span class="identifier">int64_t</span> preferred_max_line_length <span class="special">=</span> <span class="number">80</span><span class="special">,</span> 
-                          <span class="identifier">int64_t</span> max_after_caret <span class="special">=</span> <span class="number">40</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm17957"></a><h2>Description</h2>
-<p>Writes a formatted message (meaning prefixed with the file name, line, and column number) to <code class="computeroutput">os</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="rethrow_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="write_formatted_e_idm18329.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/write_formatted_m_idm18305.html b/doc/html/boost/parser/write_formatted_m_idm18305.html
deleted file mode 100644
index 32597f3b..00000000
--- a/doc/html/boost/parser/write_formatted_m_idm18305.html
+++ /dev/null
@@ -1,49 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template write_formatted_message</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
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-</div>
-<div class="refentry">
-<a name="boost.parser.write_formatted_m_idm18305"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template write_formatted_message</span></h2>
-<p>boost::parser::write_formatted_message</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/error_handling_hpp.html" title="Header &lt;boost/parser/error_handling.hpp&gt;">boost/parser/error_handling.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">&gt;</span> 
-  <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> 
-  <span class="identifier">write_formatted_message</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> os<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> filename<span class="special">,</span> 
-                          <span class="identifier">Iter</span> first<span class="special">,</span> <span class="identifier">Iter</span> it<span class="special">,</span> <span class="identifier">Sentinel</span> last<span class="special">,</span> 
-                          <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
-                          <span class="identifier">int64_t</span> preferred_max_line_length <span class="special">=</span> <span class="number">80</span><span class="special">,</span> 
-                          <span class="identifier">int64_t</span> max_after_caret <span class="special">=</span> <span class="number">40</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm17959"></a><h2>Description</h2>
-<p>Writes a formatted message (meaning prefixed with the file name, line, and column number) to <code class="computeroutput">os</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="rethrow_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="write_formatted_e_idm18331.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/write_formatted_m_idm18306.html b/doc/html/boost/parser/write_formatted_m_idm18306.html
deleted file mode 100644
index 52ac8b76..00000000
--- a/doc/html/boost/parser/write_formatted_m_idm18306.html
+++ /dev/null
@@ -1,49 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template write_formatted_message</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/error_handling_hpp.html" title="Header &lt;boost/parser/error_handling.hpp&gt;">
-<link rel="prev" href="rethrow_error_handler.html" title="Struct rethrow_error_handler">
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-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="rethrow_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="write_formatted_e_idm18332.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.write_formatted_m_idm18306"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template write_formatted_message</span></h2>
-<p>boost::parser::write_formatted_message</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/error_handling_hpp.html" title="Header &lt;boost/parser/error_handling.hpp&gt;">boost/parser/error_handling.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">&gt;</span> 
-  <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> 
-  <span class="identifier">write_formatted_message</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> os<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> filename<span class="special">,</span> 
-                          <span class="identifier">Iter</span> first<span class="special">,</span> <span class="identifier">Iter</span> it<span class="special">,</span> <span class="identifier">Sentinel</span> last<span class="special">,</span> 
-                          <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
-                          <span class="identifier">int64_t</span> preferred_max_line_length <span class="special">=</span> <span class="number">80</span><span class="special">,</span> 
-                          <span class="identifier">int64_t</span> max_after_caret <span class="special">=</span> <span class="number">40</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm17960"></a><h2>Description</h2>
-<p>Writes a formatted message (meaning prefixed with the file name, line, and column number) to <code class="computeroutput">os</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="rethrow_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="write_formatted_e_idm18332.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/write_formatted_m_idm18307.html b/doc/html/boost/parser/write_formatted_m_idm18307.html
deleted file mode 100644
index a3366cf8..00000000
--- a/doc/html/boost/parser/write_formatted_m_idm18307.html
+++ /dev/null
@@ -1,49 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template write_formatted_message</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
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-<link rel="prev" href="rethrow_error_handler.html" title="Struct rethrow_error_handler">
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-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="rethrow_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="write_formatted_e_idm18333.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.write_formatted_m_idm18307"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template write_formatted_message</span></h2>
-<p>boost::parser::write_formatted_message</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/error_handling_hpp.html" title="Header &lt;boost/parser/error_handling.hpp&gt;">boost/parser/error_handling.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">&gt;</span> 
-  <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> 
-  <span class="identifier">write_formatted_message</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> os<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> filename<span class="special">,</span> 
-                          <span class="identifier">Iter</span> first<span class="special">,</span> <span class="identifier">Iter</span> it<span class="special">,</span> <span class="identifier">Sentinel</span> last<span class="special">,</span> 
-                          <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
-                          <span class="identifier">int64_t</span> preferred_max_line_length <span class="special">=</span> <span class="number">80</span><span class="special">,</span> 
-                          <span class="identifier">int64_t</span> max_after_caret <span class="special">=</span> <span class="number">40</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm17960"></a><h2>Description</h2>
-<p>Writes a formatted message (meaning prefixed with the file name, line, and column number) to <code class="computeroutput">os</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="rethrow_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="write_formatted_e_idm18333.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/write_formatted_m_idm18323.html b/doc/html/boost/parser/write_formatted_m_idm18323.html
deleted file mode 100644
index d2ec8c66..00000000
--- a/doc/html/boost/parser/write_formatted_m_idm18323.html
+++ /dev/null
@@ -1,49 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template write_formatted_message</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
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-<link rel="prev" href="rethrow_error_handler.html" title="Struct rethrow_error_handler">
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-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="rethrow_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="write_formatted_e_idm18349.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.write_formatted_m_idm18323"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template write_formatted_message</span></h2>
-<p>boost::parser::write_formatted_message</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/error_handling_hpp.html" title="Header &lt;boost/parser/error_handling.hpp&gt;">boost/parser/error_handling.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">&gt;</span> 
-  <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> 
-  <span class="identifier">write_formatted_message</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> os<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> filename<span class="special">,</span> 
-                          <span class="identifier">Iter</span> first<span class="special">,</span> <span class="identifier">Iter</span> it<span class="special">,</span> <span class="identifier">Sentinel</span> last<span class="special">,</span> 
-                          <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
-                          <span class="identifier">int64_t</span> preferred_max_line_length <span class="special">=</span> <span class="number">80</span><span class="special">,</span> 
-                          <span class="identifier">int64_t</span> max_after_caret <span class="special">=</span> <span class="number">40</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm17976"></a><h2>Description</h2>
-<p>Writes a formatted message (meaning prefixed with the file name, line, and column number) to <code class="computeroutput">os</code>. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="rethrow_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="write_formatted_e_idm18349.html"><img src="../../images/next.png" alt="Next"></a>
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diff --git a/doc/html/boost/parser/write_formatted_m_idm18588.html b/doc/html/boost/parser/write_formatted_m_idm18588.html
deleted file mode 100644
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+++ /dev/null
@@ -1,49 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template write_formatted_message</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
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-<link rel="prev" href="diagnostic_kind.html" title="Type diagnostic_kind">
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-<div class="refentry">
-<a name="boost.parser.write_formatted_m_idm18588"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template write_formatted_message</span></h2>
-<p>boost::parser::write_formatted_message</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/error_handling_fwd_hpp.html" title="Header &lt;boost/parser/error_handling_fwd.hpp&gt;">boost/parser/error_handling_fwd.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">&gt;</span> 
-  <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> 
-  <span class="identifier">write_formatted_message</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> os<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring_view</span> filename<span class="special">,</span> 
-                          <span class="identifier">Iter</span> first<span class="special">,</span> <span class="identifier">Iter</span> it<span class="special">,</span> <span class="identifier">Sentinel</span> last<span class="special">,</span> 
-                          <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
-                          <span class="identifier">int64_t</span> preferred_max_line_length <span class="special">=</span> <span class="number">80</span><span class="special">,</span> 
-                          <span class="identifier">int64_t</span> max_after_caret <span class="special">=</span> <span class="number">40</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm19015"></a><h2>Description</h2>
-<p>Writes a formatted message (meaning prefixed with the file name, line, and column number) to <code class="computeroutput">os</code>. This overload is Windows-only. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="diagnostic_kind.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="write_formatted_e_idm18614.html"><img src="../../images/next.png" alt="Next"></a>
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-</body>
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diff --git a/doc/html/boost/parser/write_formatted_m_idm18590.html b/doc/html/boost/parser/write_formatted_m_idm18590.html
deleted file mode 100644
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--- a/doc/html/boost/parser/write_formatted_m_idm18590.html
+++ /dev/null
@@ -1,49 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template write_formatted_message</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
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-<link rel="prev" href="diagnostic_kind.html" title="Type diagnostic_kind">
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-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
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-</div>
-<div class="refentry">
-<a name="boost.parser.write_formatted_m_idm18590"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template write_formatted_message</span></h2>
-<p>boost::parser::write_formatted_message</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/error_handling_fwd_hpp.html" title="Header &lt;boost/parser/error_handling_fwd.hpp&gt;">boost/parser/error_handling_fwd.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">&gt;</span> 
-  <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> 
-  <span class="identifier">write_formatted_message</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> os<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring_view</span> filename<span class="special">,</span> 
-                          <span class="identifier">Iter</span> first<span class="special">,</span> <span class="identifier">Iter</span> it<span class="special">,</span> <span class="identifier">Sentinel</span> last<span class="special">,</span> 
-                          <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
-                          <span class="identifier">int64_t</span> preferred_max_line_length <span class="special">=</span> <span class="number">80</span><span class="special">,</span> 
-                          <span class="identifier">int64_t</span> max_after_caret <span class="special">=</span> <span class="number">40</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm19017"></a><h2>Description</h2>
-<p>Writes a formatted message (meaning prefixed with the file name, line, and column number) to <code class="computeroutput">os</code>. This overload is Windows-only. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="diagnostic_kind.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="write_formatted_e_idm18616.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/write_formatted_m_idm18591.html b/doc/html/boost/parser/write_formatted_m_idm18591.html
deleted file mode 100644
index dc4d9be3..00000000
--- a/doc/html/boost/parser/write_formatted_m_idm18591.html
+++ /dev/null
@@ -1,49 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template write_formatted_message</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/error_handling_fwd_hpp.html" title="Header &lt;boost/parser/error_handling_fwd.hpp&gt;">
-<link rel="prev" href="diagnostic_kind.html" title="Type diagnostic_kind">
-<link rel="next" href="write_formatted_e_idm18617.html" title="Function template write_formatted_expectation_failure_error_message">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="diagnostic_kind.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="write_formatted_e_idm18617.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.write_formatted_m_idm18591"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template write_formatted_message</span></h2>
-<p>boost::parser::write_formatted_message</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/error_handling_fwd_hpp.html" title="Header &lt;boost/parser/error_handling_fwd.hpp&gt;">boost/parser/error_handling_fwd.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">&gt;</span> 
-  <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> 
-  <span class="identifier">write_formatted_message</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> os<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring_view</span> filename<span class="special">,</span> 
-                          <span class="identifier">Iter</span> first<span class="special">,</span> <span class="identifier">Iter</span> it<span class="special">,</span> <span class="identifier">Sentinel</span> last<span class="special">,</span> 
-                          <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
-                          <span class="identifier">int64_t</span> preferred_max_line_length <span class="special">=</span> <span class="number">80</span><span class="special">,</span> 
-                          <span class="identifier">int64_t</span> max_after_caret <span class="special">=</span> <span class="number">40</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm19018"></a><h2>Description</h2>
-<p>Writes a formatted message (meaning prefixed with the file name, line, and column number) to <code class="computeroutput">os</code>. This overload is Windows-only. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="diagnostic_kind.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="write_formatted_e_idm18617.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/write_formatted_m_idm18592.html b/doc/html/boost/parser/write_formatted_m_idm18592.html
deleted file mode 100644
index ada3227c..00000000
--- a/doc/html/boost/parser/write_formatted_m_idm18592.html
+++ /dev/null
@@ -1,49 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template write_formatted_message</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/error_handling_fwd_hpp.html" title="Header &lt;boost/parser/error_handling_fwd.hpp&gt;">
-<link rel="prev" href="diagnostic_kind.html" title="Type diagnostic_kind">
-<link rel="next" href="write_formatted_e_idm18618.html" title="Function template write_formatted_expectation_failure_error_message">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="diagnostic_kind.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="write_formatted_e_idm18618.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.write_formatted_m_idm18592"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template write_formatted_message</span></h2>
-<p>boost::parser::write_formatted_message</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/error_handling_fwd_hpp.html" title="Header &lt;boost/parser/error_handling_fwd.hpp&gt;">boost/parser/error_handling_fwd.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">&gt;</span> 
-  <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> 
-  <span class="identifier">write_formatted_message</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> os<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring_view</span> filename<span class="special">,</span> 
-                          <span class="identifier">Iter</span> first<span class="special">,</span> <span class="identifier">Iter</span> it<span class="special">,</span> <span class="identifier">Sentinel</span> last<span class="special">,</span> 
-                          <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
-                          <span class="identifier">int64_t</span> preferred_max_line_length <span class="special">=</span> <span class="number">80</span><span class="special">,</span> 
-                          <span class="identifier">int64_t</span> max_after_caret <span class="special">=</span> <span class="number">40</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm19018"></a><h2>Description</h2>
-<p>Writes a formatted message (meaning prefixed with the file name, line, and column number) to <code class="computeroutput">os</code>. This overload is Windows-only. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="diagnostic_kind.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="write_formatted_e_idm18618.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/write_formatted_m_idm18301.html b/doc/html/boost/parser/write_formatted_m_idm18593.html
similarity index 93%
rename from doc/html/boost/parser/write_formatted_m_idm18301.html
rename to doc/html/boost/parser/write_formatted_m_idm18593.html
index 83d26d5a..d023ce55 100644
--- a/doc/html/boost/parser/write_formatted_m_idm18301.html
+++ b/doc/html/boost/parser/write_formatted_m_idm18593.html
@@ -7,15 +7,15 @@
 <link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../header/boost/parser/error_handling_hpp.html" title="Header &lt;boost/parser/error_handling.hpp&gt;">
 <link rel="prev" href="rethrow_error_handler.html" title="Struct rethrow_error_handler">
-<link rel="next" href="write_formatted_e_idm18327.html" title="Function template write_formatted_expectation_failure_error_message">
+<link rel="next" href="write_formatted_e_idm18619.html" title="Function template write_formatted_expectation_failure_error_message">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="rethrow_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="write_formatted_e_idm18327.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="rethrow_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="write_formatted_e_idm18619.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
-<a name="boost.parser.write_formatted_m_idm18301"></a><div class="titlepage"></div>
+<a name="boost.parser.write_formatted_m_idm18593"></a><div class="titlepage"></div>
 <div class="refnamediv">
 <h2><span class="refentrytitle">Function template write_formatted_message</span></h2>
 <p>boost::parser::write_formatted_message</p>
@@ -32,7 +32,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
                           <span class="identifier">int64_t</span> preferred_max_line_length <span class="special">=</span> <span class="number">80</span><span class="special">,</span> 
                           <span class="identifier">int64_t</span> max_after_caret <span class="special">=</span> <span class="number">40</span><span class="special">)</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm17955"></a><h2>Description</h2>
+<a name="idm18202"></a><h2>Description</h2>
 <p>Writes a formatted message (meaning prefixed with the file name, line, and column number) to <code class="computeroutput">os</code>. </p>
 </div>
 </div>
@@ -43,7 +43,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="rethrow_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="write_formatted_e_idm18327.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="rethrow_error_handler.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="write_formatted_e_idm18619.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/write_formatted_m_idm18608.html b/doc/html/boost/parser/write_formatted_m_idm18608.html
deleted file mode 100644
index 38e709b5..00000000
--- a/doc/html/boost/parser/write_formatted_m_idm18608.html
+++ /dev/null
@@ -1,49 +0,0 @@
-<html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Function template write_formatted_message</title>
-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
-<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
-<link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
-<link rel="up" href="../../header/boost/parser/error_handling_fwd_hpp.html" title="Header &lt;boost/parser/error_handling_fwd.hpp&gt;">
-<link rel="prev" href="diagnostic_kind.html" title="Type diagnostic_kind">
-<link rel="next" href="write_formatted_e_idm18634.html" title="Function template write_formatted_expectation_failure_error_message">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-</head>
-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
-<div class="spirit-nav">
-<a accesskey="p" href="diagnostic_kind.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="write_formatted_e_idm18634.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-<div class="refentry">
-<a name="boost.parser.write_formatted_m_idm18608"></a><div class="titlepage"></div>
-<div class="refnamediv">
-<h2><span class="refentrytitle">Function template write_formatted_message</span></h2>
-<p>boost::parser::write_formatted_message</p>
-</div>
-<h2 class="refsynopsisdiv-title">Synopsis</h2>
-<div class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../header/boost/parser/error_handling_fwd_hpp.html" title="Header &lt;boost/parser/error_handling_fwd.hpp&gt;">boost/parser/error_handling_fwd.hpp</a>&gt;
-
-</span>
-<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">&gt;</span> 
-  <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> 
-  <span class="identifier">write_formatted_message</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> os<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring_view</span> filename<span class="special">,</span> 
-                          <span class="identifier">Iter</span> first<span class="special">,</span> <span class="identifier">Iter</span> it<span class="special">,</span> <span class="identifier">Sentinel</span> last<span class="special">,</span> 
-                          <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
-                          <span class="identifier">int64_t</span> preferred_max_line_length <span class="special">=</span> <span class="number">80</span><span class="special">,</span> 
-                          <span class="identifier">int64_t</span> max_after_caret <span class="special">=</span> <span class="number">40</span><span class="special">)</span><span class="special">;</span></pre></div>
-<div class="refsect1">
-<a name="idm19034"></a><h2>Description</h2>
-<p>Writes a formatted message (meaning prefixed with the file name, line, and column number) to <code class="computeroutput">os</code>. This overload is Windows-only. </p>
-</div>
-</div>
-<div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
-        Distributed under the Boost Software License, Version 1.0. (See accompanying
-        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
-      </p>
-</div>
-<hr>
-<div class="spirit-nav">
-<a accesskey="p" href="diagnostic_kind.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="write_formatted_e_idm18634.html"><img src="../../images/next.png" alt="Next"></a>
-</div>
-</body>
-</html>
diff --git a/doc/html/boost/parser/write_formatted_m_idm18586.html b/doc/html/boost/parser/write_formatted_m_idm18878.html
similarity index 93%
rename from doc/html/boost/parser/write_formatted_m_idm18586.html
rename to doc/html/boost/parser/write_formatted_m_idm18878.html
index a121877b..c394e920 100644
--- a/doc/html/boost/parser/write_formatted_m_idm18586.html
+++ b/doc/html/boost/parser/write_formatted_m_idm18878.html
@@ -7,15 +7,15 @@
 <link rel="home" href="../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../header/boost/parser/error_handling_fwd_hpp.html" title="Header &lt;boost/parser/error_handling_fwd.hpp&gt;">
 <link rel="prev" href="diagnostic_kind.html" title="Type diagnostic_kind">
-<link rel="next" href="write_formatted_e_idm18612.html" title="Function template write_formatted_expectation_failure_error_message">
+<link rel="next" href="write_formatted_e_idm18904.html" title="Function template write_formatted_expectation_failure_error_message">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="diagnostic_kind.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="write_formatted_e_idm18612.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="diagnostic_kind.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="write_formatted_e_idm18904.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 <div class="refentry">
-<a name="boost.parser.write_formatted_m_idm18586"></a><div class="titlepage"></div>
+<a name="boost.parser.write_formatted_m_idm18878"></a><div class="titlepage"></div>
 <div class="refnamediv">
 <h2><span class="refentrytitle">Function template write_formatted_message</span></h2>
 <p>boost::parser::write_formatted_message</p>
@@ -32,7 +32,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
                           <span class="identifier">int64_t</span> preferred_max_line_length <span class="special">=</span> <span class="number">80</span><span class="special">,</span> 
                           <span class="identifier">int64_t</span> max_after_caret <span class="special">=</span> <span class="number">40</span><span class="special">)</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm19013"></a><h2>Description</h2>
+<a name="idm19260"></a><h2>Description</h2>
 <p>Writes a formatted message (meaning prefixed with the file name, line, and column number) to <code class="computeroutput">os</code>. This overload is Windows-only. </p>
 </div>
 </div>
@@ -43,7 +43,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="diagnostic_kind.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="write_formatted_e_idm18612.html"><img src="../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="diagnostic_kind.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../header/boost/parser/error_handling_fwd_hpp.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="write_formatted_e_idm18904.html"><img src="../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/boost/parser/ws.html b/doc/html/boost/parser/ws.html
index 35286d17..54bc03c3 100644
--- a/doc/html/boost/parser/ws.html
+++ b/doc/html/boost/parser/ws.html
@@ -25,7 +25,7 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 
 </span><span class="keyword">constexpr</span> <a class="link" href="parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <a class="link" href="ws_parser.html" title="Struct template ws_parser">ws_parser</a><span class="special">&lt;</span> <span class="keyword">false</span> <span class="special">&gt;</span> <span class="special">&gt;</span> ws<span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm33071"></a><h2>Description</h2>
+<a name="idm33514"></a><h2>Description</h2>
 <p>The whitespace parser. This matches "\r\n", or any one of the Unicode code points with the White_Space property, as defined in <a href="https://www.unicode.org/Public/UCD/latest/ucd/PropList.txt" target="_top">https://www.unicode.org/Public/UCD/latest/ucd/PropList.txt</a>. Produces no attribute. </p>
 </div>
 </div>
diff --git a/doc/html/boost/parser/ws_parser.html b/doc/html/boost/parser/ws_parser.html
index 4731998d..51ca36ea 100644
--- a/doc/html/boost/parser/ws_parser.html
+++ b/doc/html/boost/parser/ws_parser.html
@@ -26,43 +26,43 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> NewlinesOnly<span class="special">&gt;</span> 
 <span class="keyword">struct</span> <a class="link" href="ws_parser.html" title="Struct template ws_parser">ws_parser</a> <span class="special">{</span>
   <span class="comment">// <a class="link" href="ws_parser.html#boost.parser.ws_parserconstruct-copy-destruct">construct/copy/destruct</a></span>
-  <a class="link" href="ws_parser.html#idm21457-bb"><span class="identifier">ws_parser</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="ws_parser.html#idm21758-bb"><span class="identifier">ws_parser</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
 
-  <span class="comment">// <a class="link" href="ws_parser.html#idm21404-bb">public member functions</a></span>
+  <span class="comment">// <a class="link" href="ws_parser.html#idm21705-bb">public member functions</a></span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-    <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="ws_parser.html#idm21405-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="ws_parser.html#idm21706-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
                      <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> 
                      <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
            <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-    <span class="keyword">void</span> <a class="link" href="ws_parser.html#idm21430-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
+    <span class="keyword">void</span> <a class="link" href="ws_parser.html#idm21731-bb"><span class="identifier">call</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span><span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
               <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span><span class="special">,</span> 
               <span class="identifier">Attribute</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm32479"></a><h2>Description</h2>
+<a name="idm32898"></a><h2>Description</h2>
 <p>Maches an end-of-line (<code class="computeroutput">NewlinesOnly == true</code>) or whitespace (<code class="computeroutput">NewlinesOnly == false</code>) code point, based on the Unicode definitions of each (also matches the two code points <code class="computeroutput">"\r\n"</code>). Produces no attribute. </p>
 <div class="refsect2">
-<a name="idm32485"></a><h3>
+<a name="idm32904"></a><h3>
 <a name="boost.parser.ws_parserconstruct-copy-destruct"></a><code class="computeroutput">ws_parser</code> 
         public
        construct/copy/destruct</h3>
-<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><a name="idm21457-bb"></a><span class="identifier">ws_parser</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li></ol></div>
+<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><a name="idm21758-bb"></a><span class="identifier">ws_parser</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li></ol></div>
 </div>
 <div class="refsect2">
-<a name="idm32498"></a><h3>
-<a name="idm21404-bb"></a><code class="computeroutput">ws_parser</code> public member functions</h3>
+<a name="idm32917"></a><h3>
+<a name="idm21705-bb"></a><code class="computeroutput">ws_parser</code> public member functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> 
-  <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a name="idm21405-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a name="idm21706-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
                    <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> 
                    <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> 
                    <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> UseCallbacks<span class="special">,</span> <span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">,</span> 
          <span class="keyword">typename</span> Context<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">&gt;</span> 
-  <span class="keyword">void</span> <a name="idm21430-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
+  <span class="keyword">void</span> <a name="idm21731-bb"></a><span class="identifier">call</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">bool_constant</span><span class="special">&lt;</span> <span class="identifier">UseCallbacks</span> <span class="special">&gt;</span> use_cbs<span class="special">,</span> <span class="identifier">Iter</span> <span class="special">&amp;</span> first<span class="special">,</span> 
             <span class="identifier">Sentinel</span> last<span class="special">,</span> <span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">SkipParser</span> <span class="keyword">const</span> <span class="special">&amp;</span> skip<span class="special">,</span> 
             <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> flags<span class="special">,</span> <span class="keyword">bool</span> <span class="special">&amp;</span> success<span class="special">,</span> <span class="identifier">Attribute</span> <span class="special">&amp;</span> retval<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
 </ol></div>
diff --git a/doc/html/boost/parser/zero_plus_parser.html b/doc/html/boost/parser/zero_plus_parser.html
index 85cc59f1..267d2798 100644
--- a/doc/html/boost/parser/zero_plus_parser.html
+++ b/doc/html/boost/parser/zero_plus_parser.html
@@ -26,19 +26,19 @@ <h2 class="refsynopsisdiv-title">Synopsis</h2>
 </span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
 <span class="keyword">struct</span> <a class="link" href="zero_plus_parser.html" title="Struct template zero_plus_parser">zero_plus_parser</a> <span class="special">:</span> <span class="keyword">public</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">parser</span><span class="special">::</span><span class="identifier">repeat_parser</span><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span> <span class="special">{</span>
   <span class="comment">// <a class="link" href="zero_plus_parser.html#boost.parser.zero_plus_parserconstruct-copy-destruct">construct/copy/destruct</a></span>
-  <a class="link" href="zero_plus_parser.html#idm21474-bb"><span class="identifier">zero_plus_parser</span></a><span class="special">(</span><span class="identifier">Parser</span><span class="special">)</span><span class="special">;</span>
+  <a class="link" href="zero_plus_parser.html#idm21775-bb"><span class="identifier">zero_plus_parser</span></a><span class="special">(</span><span class="identifier">Parser</span><span class="special">)</span><span class="special">;</span>
 <span class="special">}</span><span class="special">;</span></pre></div>
 <div class="refsect1">
-<a name="idm32641"></a><h2>Description</h2>
+<a name="idm33060"></a><h2>Description</h2>
 <p>Repeats the application of another parser <code class="computeroutput">p</code> of type <code class="computeroutput">Parser</code>, <code class="computeroutput">[0, Inf)</code> times. The parse always succeeds. The attribute produced is a sequence of the type of attribute produced by <code class="computeroutput">Parser</code>.</p>
 <p>A simplified <code class="computeroutput"><a class="link" href="repeat_parser.html" title="Struct template repeat_parser">repeat_parser</a></code> that applies <code class="computeroutput">parser</code> zero or more times. <br>
  </p>
 <div class="refsect2">
-<a name="idm32653"></a><h3>
+<a name="idm33072"></a><h3>
 <a name="boost.parser.zero_plus_parserconstruct-copy-destruct"></a><code class="computeroutput">zero_plus_parser</code> 
         public
        construct/copy/destruct</h3>
-<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><a name="idm21474-bb"></a><span class="identifier">zero_plus_parser</span><span class="special">(</span><span class="identifier">Parser</span> parser<span class="special">)</span><span class="special">;</span></pre></li></ol></div>
+<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><a name="idm21775-bb"></a><span class="identifier">zero_plus_parser</span><span class="special">(</span><span class="identifier">Parser</span> parser<span class="special">)</span><span class="special">;</span></pre></li></ol></div>
 </div>
 </div>
 </div>
diff --git a/doc/html/boost_parser__proposed_/configuration_and_optional_features.html b/doc/html/boost_parser__proposed_/configuration_and_optional_features.html
index a05f448f..ec58cebc 100644
--- a/doc/html/boost_parser__proposed_/configuration_and_optional_features.html
+++ b/doc/html/boost_parser__proposed_/configuration_and_optional_features.html
@@ -56,41 +56,31 @@
       Boost.Parser automatically treats aggregate <code class="computeroutput"><span class="keyword">struct</span></code>s
       as if they were tuples in many cases. There is some metaprogramming logic that
       makes this work, and this logic has a hard limit on the size of a <code class="computeroutput"><span class="keyword">struct</span></code> that it can operate on. There is a configuration
-      macro <code class="computeroutput"><a class="link" href="../BOOST_PARSER_MAX__idm18208.html" title="Macro BOOST_PARSER_MAX_AGGREGATE_SIZE">BOOST_PARSER_MAX_AGGREGATE_SIZE</a></code>
+      macro <code class="computeroutput"><a class="link" href="../BOOST_PARSER_MAX__idm18478.html" title="Macro BOOST_PARSER_MAX_AGGREGATE_SIZE">BOOST_PARSER_MAX_AGGREGATE_SIZE</a></code>
       that you can adjust if the default value is too small. Note that turning this
       value up significantly can significantly increase compile times. Also, MSVC
       seems to have a hard time with large values; I successfully set this value
       to <code class="computeroutput"><span class="number">50</span></code> on MSVC, but <code class="computeroutput"><span class="number">100</span></code> broke the MSVC build entirely.
     </p>
 <p>
-      Boost.Parser uses <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">optional</span></code> and <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">variant</span></code>
-      internally. There is no way to change this. However, when Boost.Parser generates
-      values as a result of the parse (see <a class="link" href="tutorial/attribute_generation.html" title="Attribute Generation">Attribute
-      Generation</a>), it can place them into other implementations of optional
-      and/or variant, if you tell it to do so. You tell it which templates are usable
-      as an optional or variant by specializing the associated variable template.
-      For instance, here is how you would tell Boost.Parser that <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">optional</span></code>
+      Boost.Parser uses <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">optional</span></code> internally. There is no way to change
+      this. However, when Boost.Parser generates values as a result of the parse
+      (see <a class="link" href="tutorial/attribute_generation.html" title="Attribute Generation">Attribute
+      Generation</a>), it can place them into other implementations of optional,
+      if you tell it to do so. You tell it a template is usable as an optional by
+      specializing the <code class="computeroutput"><span class="identifier">enable_optional</span></code>
+      template. For instance, here is how you would tell Boost.Parser that <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">optional</span></code>
       is an optional-type:
     </p>
 <pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
 <span class="keyword">constexpr</span> <span class="keyword">bool</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">parser</span><span class="special">::</span><span class="identifier">enable_optional</span><span class="special">&lt;</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;&gt;</span> <span class="special">=</span> <span class="keyword">true</span><span class="special">;</span>
 </pre>
-<p>
-      Here's how you would do the same thing for <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">variant2</span><span class="special">::</span><span class="identifier">variant</span></code>:
-    </p>
-<pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span><span class="special">...</span> <span class="identifier">Ts</span><span class="special">&gt;</span>
-<span class="keyword">constexpr</span> <span class="keyword">bool</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">parser</span><span class="special">::</span><span class="identifier">enable_optional</span><span class="special">&lt;</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">variant2</span><span class="special">::</span><span class="identifier">variant</span><span class="special">&lt;</span><span class="identifier">Ts</span><span class="special">...&gt;&gt;</span> <span class="special">=</span> <span class="keyword">true</span><span class="special">;</span>
-</pre>
 <p>
       The requirements on a template used as an optional are pretty simple, since
       Boost.Parser does almost nothing but assign to them. For a type <code class="computeroutput"><span class="identifier">O</span></code> to be a usable optional, you must be able
       to assign to <code class="computeroutput"><span class="identifier">O</span></code>, and <code class="computeroutput"><span class="identifier">O</span></code> must have an <code class="computeroutput"><span class="keyword">operator</span><span class="special">*</span></code> that returns the stored value, or a (possibly
       cv-qualified) reference to the stored value.
     </p>
-<p>
-      For variants, the requirement is even simpler; the variant type only needs
-      to be assignable.
-    </p>
 </div>
 <div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
         Distributed under the Boost Software License, Version 1.0. (See accompanying
diff --git a/doc/html/boost_parser__proposed_/introduction.html b/doc/html/boost_parser__proposed_/introduction.html
index 717aadea..9bb73dc8 100644
--- a/doc/html/boost_parser__proposed_/introduction.html
+++ b/doc/html/boost_parser__proposed_/introduction.html
@@ -51,8 +51,8 @@
       reporting the results of subparsers as they are finished, via callbacks. Boost.Parser
       accommodates all these ways of working, and even makes it possible to do callback-based
       or non-callback-based parsing without rewriting any code (except by changing
-      the top-level call from <code class="computeroutput"><a class="link" href="../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>
-      to <code class="computeroutput"><a class="link" href="../boost/parser/callback_parse_idm22722.html" title="Function template callback_parse">callback_parse()</a></code>).
+      the top-level call from <code class="computeroutput"><a class="link" href="../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>
+      to <code class="computeroutput"><a class="link" href="../boost/parser/callback_parse_idm23049.html" title="Function template callback_parse">callback_parse()</a></code>).
     </p>
 <p>
       All of Boost.Parser's public interfaces are sentinel- and range-friendly, just
@@ -91,7 +91,7 @@
       to get a trace of your entire parse, with easy-to-read (and very verbose) indications
       of where each part of the trace is within the parse, the state of values produced
       by the parse, etc. Again, you don't need to write any code to make this happen
-      — you just pass a parameter to <code class="computeroutput"><a class="link" href="../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>.
+      — you just pass a parameter to <code class="computeroutput"><a class="link" href="../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>.
     </p>
 <p>
       Dependencies are still a nightmare in C++, so Boost.Parser can be used as a
diff --git a/doc/html/boost_parser__proposed_/rationale.html b/doc/html/boost_parser__proposed_/rationale.html
index 44ae8d26..0a0f3b2d 100644
--- a/doc/html/boost_parser__proposed_/rationale.html
+++ b/doc/html/boost_parser__proposed_/rationale.html
@@ -242,6 +242,46 @@ <h4>
       Allowing the insertion to happen on arbitrary types that model the <code class="computeroutput">container</code>
       concept is what allows generic use of different containers.
     </p>
+<h4>
+<a name="boost_parser__proposed_.rationale.h3"></a>
+      <span class="phrase"><a name="boost_parser__proposed_.rationale.sequences_of_character_type_are_treated_specially"></a></span><a class="link" href="rationale.html#boost_parser__proposed_.rationale.sequences_of_character_type_are_treated_specially">Sequences
+      of character type are treated specially</a>
+    </h4>
+<p>
+      Boost.Parser attempts to keep the rules for attribute generation simple. However,
+      there are some rules for attribute generation that only apply to character
+      types like <code class="computeroutput">char</code> and <code class="computeroutput">char32_t</code>. Sequences of these
+      produce a <code class="computeroutput">std::string</code> attribute, while sequences of every other
+      type produce <code class="computeroutput">std::vector</code>s. There are a couple of reasons for this.
+    </p>
+<p>
+      First, strings and vectors are different. We know that strings are just arrays
+      of numbers, but we have a whole different type for them, <code class="computeroutput">std::string</code>.
+      It has a different API, and other code that operates on text expects a string
+      instead of some other container. Arrays of characters are already considered
+      special by the standard library and common practice in C++.
+    </p>
+<p>
+      Second, When you write a parser that parses multiple characters in a row, you
+      are typically trying to produce a string attribute, rather than a few individual
+      character values. When you use multiple non-character parsers in a row, you
+      are typically trying to produce multiple values. For instance:
+    </p>
+<pre class="programlisting">namespace bp = boost::parser;
+auto parser_1 = bp::char_ &gt;&gt; bp::char_ &gt;&gt; -bp::char_;
+auto parser_2 = +(bp::char_ - ' ') &gt;&gt; ' ' &gt;&gt; +(bp::char_ - ' ');
+</pre>
+<p>
+      I don't know about you, but I've rarely written a parser like <code class="computeroutput">parser_1</code>
+      and wanted to produce a <code class="computeroutput"><a class="link" href="../boost/parser/tuple.html" title="Type definition tuple">boost::parser::tuple</a>&lt;char,
+      char, std::optional&lt;char&gt;&gt;</code>. Similarly, I've rarely written
+      a parser like <code class="computeroutput">parser_2</code> and wanted a <code class="computeroutput">std::vector&lt;std::string&gt;</code>.
+    </p>
+<p>
+      Boost.Parser therefore makes the common case the default behavior, and provides
+      you with the <code class="computeroutput"><a class="link" href="../boost/parser/merge.html" title="Global merge">merge[]</a></code> and <code class="computeroutput"><a class="link" href="../boost/parser/separate.html" title="Global separate">separate[]</a></code>
+      directives to let you opt-in to generating the less-common attributes.
+    </p>
 </div>
 <div class="copyright-footer">Copyright © 2020 T. Zachary Laine<p>
         Distributed under the Boost Software License, Version 1.0. (See accompanying
diff --git a/doc/html/boost_parser__proposed_/tutorial/a_trivial_example.html b/doc/html/boost_parser__proposed_/tutorial/a_trivial_example.html
index e7b2faff..feb27351 100644
--- a/doc/html/boost_parser__proposed_/tutorial/a_trivial_example.html
+++ b/doc/html/boost_parser__proposed_/tutorial/a_trivial_example.html
@@ -82,10 +82,10 @@
       </p>
 <p>
         The first example filled in an out-parameter to deliver the result of the
-        parse. This call to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>
+        parse. This call to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>
         returns a result instead. As you can see, the result is contextually convertible
         to <code class="computeroutput"><span class="keyword">bool</span></code>, and <code class="computeroutput"><span class="special">*</span><span class="identifier">result</span></code> is some sort of range. In fact,
-        the return type of this call to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>
+        the return type of this call to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>
         is <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special">&lt;</span><span class="keyword">double</span><span class="special">&gt;&gt;</span></code>. Naturally, if the parse fails,
         <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">nullopt</span></code> is returned. We'll look at how
         Boost.Parser maps the type of the parser to the return type, or the filled
diff --git a/doc/html/boost_parser__proposed_/tutorial/a_trivial_example_that_gracefully_handles_whitespace.html b/doc/html/boost_parser__proposed_/tutorial/a_trivial_example_that_gracefully_handles_whitespace.html
index f89a3ab3..c2dcb3b3 100644
--- a/doc/html/boost_parser__proposed_/tutorial/a_trivial_example_that_gracefully_handles_whitespace.html
+++ b/doc/html/boost_parser__proposed_/tutorial/a_trivial_example_that_gracefully_handles_whitespace.html
@@ -23,8 +23,8 @@
         Let's modify the trivial parser we just saw to ignore any spaces it might
         find among the <code class="computeroutput"><span class="keyword">double</span></code>s and commas.
         To skip whitespace wherever we find it, we can pass a <span class="emphasis"><em>skip parser</em></span>
-        to our call to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code> (we don't need to touch
-        the parser passed to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>).
+        to our call to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code> (we don't need to touch
+        the parser passed to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>).
         Here, we use <code class="computeroutput"><span class="identifier">ws</span></code>, which matches
         any Unicode whitespace character.
       </p>
@@ -80,7 +80,7 @@
 </table></div>
 <p>
         The skip parser, or <span class="emphasis"><em>skipper</em></span>, is run between the subparsers
-        within the parser passed to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>.
+        within the parser passed to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>.
         In this case, the skipper is run before the first <code class="computeroutput"><span class="keyword">double</span></code>
         is parsed, before any subsequent comma or <code class="computeroutput"><span class="keyword">double</span></code>
         is parsed, and at the end. So, the strings <code class="computeroutput"><span class="string">"3.6,5.9"</span></code>
@@ -90,7 +90,7 @@
 <p>
         Skipping is an important concept in Boost.Parser. You can skip anything,
         not just whitespace; there are lots of other things you might want to skip.
-        The skipper you pass to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>
+        The skipper you pass to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>
         can be an arbitrary parser. For example, if you write a parser for a scripting
         language, you can write a skipper to skip whitespace, inline comments, and
         end-of-line comments.
diff --git a/doc/html/boost_parser__proposed_/tutorial/attribute_generation.html b/doc/html/boost_parser__proposed_/tutorial/attribute_generation.html
index 536ea43c..c3d01603 100644
--- a/doc/html/boost_parser__proposed_/tutorial/attribute_generation.html
+++ b/doc/html/boost_parser__proposed_/tutorial/attribute_generation.html
@@ -45,7 +45,7 @@
           Within semantic actions, asking for the attribute of a non-attribute-producing
           parser (using <code class="computeroutput"><span class="identifier">_attr</span><span class="special">(</span><span class="identifier">ctx</span><span class="special">)</span></code>)
           will yield a value of the special type <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">parser</span><span class="special">::</span><span class="identifier">none</span></code>.
-          When calling <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code> in a form that returns
+          When calling <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code> in a form that returns
           the attribute parsed, when there is no attribute, simply returns <code class="computeroutput"><span class="keyword">bool</span></code>; this indicates the success of failure
           of the parse.
         </p></td></tr>
@@ -203,7 +203,7 @@ <h5>
 <tr>
 <td>
                 <p>
-                  <code class="computeroutput"><a class="link" href="../../boost/parser/lit_idm22165.html" title="Function lit">lit</a><span class="special">(</span><span class="identifier">x</span><span class="special">)</span></code>
+                  <code class="computeroutput"><a class="link" href="../../boost/parser/lit_idm22492.html" title="Function lit">lit</a><span class="special">(</span><span class="identifier">x</span><span class="special">)</span></code>
                 </p>
               </td>
 <td>
@@ -768,7 +768,7 @@ <h5>
 <tr>
 <td>
                 <p>
-                  <code class="computeroutput"><a class="link" href="../../boost/parser/repeat_idm22114.html" title="Function template repeat">repeat</a><span class="special">(</span><span class="identifier">arg0</span><span class="special">)[</span><span class="identifier">p</span><span class="special">]</span></code>
+                  <code class="computeroutput"><a class="link" href="../../boost/parser/repeat_idm22441.html" title="Function template repeat">repeat</a><span class="special">(</span><span class="identifier">arg0</span><span class="special">)[</span><span class="identifier">p</span><span class="special">]</span></code>
                 </p>
               </td>
 <td>
@@ -782,7 +782,7 @@ <h5>
 <tr>
 <td>
                 <p>
-                  <code class="computeroutput"><a class="link" href="../../boost/parser/repeat_idm22114.html" title="Function template repeat">repeat</a><span class="special">(</span><span class="identifier">arg0</span><span class="special">,</span> <span class="identifier">arg1</span><span class="special">)[</span><span class="identifier">p</span><span class="special">]</span></code>
+                  <code class="computeroutput"><a class="link" href="../../boost/parser/repeat_idm22441.html" title="Function template repeat">repeat</a><span class="special">(</span><span class="identifier">arg0</span><span class="special">,</span> <span class="identifier">arg1</span><span class="special">)[</span><span class="identifier">p</span><span class="special">]</span></code>
                 </p>
               </td>
 <td>
@@ -1360,8 +1360,116 @@ <h5>
 </div>
 <br class="table-break"><h5>
 <a name="boost_parser__proposed_.tutorial.attribute_generation.h6"></a>
-        <span class="phrase"><a name="boost_parser__proposed_.tutorial.attribute_generation.directives_that_affect_attribute_generation"></a></span><a class="link" href="attribute_generation.html#boost_parser__proposed_.tutorial.attribute_generation.directives_that_affect_attribute_generation">Directives
-        that affect attribute generation</a>
+        <span class="phrase"><a name="boost_parser__proposed_.tutorial.attribute_generation.controlling_attribute_generation_with__globalname_alt__boost__parser__merge___code__phrase_role__identifier__merge__phrase__phrase_role__special______phrase___code___globalname__and__globalname_alt__boost__parser__separate___code__phrase_role__identifier__separate__phrase__phrase_role__special______phrase___code___globalname_"></a></span><a class="link" href="attribute_generation.html#boost_parser__proposed_.tutorial.attribute_generation.controlling_attribute_generation_with__globalname_alt__boost__parser__merge___code__phrase_role__identifier__merge__phrase__phrase_role__special______phrase___code___globalname__and__globalname_alt__boost__parser__separate___code__phrase_role__identifier__separate__phrase__phrase_role__special______phrase___code___globalname_">Controlling
+        attribute generation with merge[]
+        and separate[]</a>
+      </h5>
+<p>
+        As we saw in the previous <a class="link" href="parsing__struct_s.html" title="Parsing structs">Parsing
+        <code class="computeroutput"><span class="keyword">struct</span></code>s</a> section, if you
+        parse two strings in a row, you get two separate strings in the resulting
+        attribute. The parser from that example was this:
+      </p>
+<pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">bp</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">parser</span><span class="special">;</span>
+<span class="keyword">auto</span> <span class="identifier">employee_parser</span> <span class="special">=</span> <span class="identifier">bp</span><span class="special">::</span><span class="identifier">lit</span><span class="special">(</span><span class="string">"employee"</span><span class="special">)</span>
+    <span class="special">&gt;&gt;</span> <span class="char">'{'</span>
+    <span class="special">&gt;&gt;</span> <span class="identifier">bp</span><span class="special">::</span><span class="identifier">int_</span> <span class="special">&gt;&gt;</span> <span class="char">','</span>
+    <span class="special">&gt;&gt;</span> <span class="identifier">quoted_string</span> <span class="special">&gt;&gt;</span> <span class="char">','</span>
+    <span class="special">&gt;&gt;</span> <span class="identifier">quoted_string</span> <span class="special">&gt;&gt;</span> <span class="char">','</span>
+    <span class="special">&gt;&gt;</span> <span class="identifier">bp</span><span class="special">::</span><span class="identifier">double_</span>
+    <span class="special">&gt;&gt;</span> <span class="char">'}'</span><span class="special">;</span>
+</pre>
+<p>
+        <code class="computeroutput"><span class="identifier">employee_parser</span></code>'s attribute
+        is <code class="computeroutput"><a class="link" href="../../boost/parser/tuple.html" title="Type definition tuple">boost::parser::tuple</a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span>
+        <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">,</span> <span class="keyword">double</span><span class="special">&gt;</span></code>.
+        The two <code class="computeroutput"><span class="identifier">quoted_string</span></code> parsers
+        produce <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span></code> attributes, and those attributes
+        are not combined. That is the default behavior, and it is just what we want
+        for this case; we don't want the first and last name fields to be jammed
+        together such that we can't tell where one name ends and the other begins.
+        What if we were parsing some string that consisted of a prefix and a suffix,
+        and the prefix and suffix were defined separately for reuse elsewhere?
+      </p>
+<pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">bp</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">parser</span><span class="special">;</span>
+<span class="keyword">auto</span> <span class="identifier">prefix</span> <span class="special">=</span> <span class="comment">/* ... */</span><span class="special">;</span>
+<span class="keyword">auto</span> <span class="identifier">suffix</span> <span class="special">=</span> <span class="comment">/* ... */</span><span class="special">;</span>
+<span class="keyword">auto</span> <span class="identifier">special_string</span> <span class="special">=</span> <span class="identifier">prefix</span> <span class="special">&gt;&gt;</span> <span class="identifier">suffix</span><span class="special">;</span>
+<span class="comment">// Continue to use prefix and suffix to make other parsers....</span>
+</pre>
+<p>
+        In this case, we might want to use these separate parsers, but want <code class="computeroutput"><span class="identifier">special_string</span></code> to produce a single <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span></code>
+        for its attribute. <code class="computeroutput"><a class="link" href="../../boost/parser/merge.html" title="Global merge">merge[]</a></code> exists for this purpose.
+      </p>
+<pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">bp</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">parser</span><span class="special">;</span>
+<span class="keyword">auto</span> <span class="identifier">prefix</span> <span class="special">=</span> <span class="comment">/* ... */</span><span class="special">;</span>
+<span class="keyword">auto</span> <span class="identifier">suffix</span> <span class="special">=</span> <span class="comment">/* ... */</span><span class="special">;</span>
+<span class="keyword">auto</span> <span class="identifier">special_string</span> <span class="special">=</span> <span class="identifier">bp</span><span class="special">::</span><span class="identifier">merge</span><span class="special">[</span><span class="identifier">prefix</span> <span class="special">&gt;&gt;</span> <span class="identifier">suffix</span><span class="special">];</span>
+</pre>
+<p>
+        <code class="computeroutput"><a class="link" href="../../boost/parser/merge.html" title="Global merge">merge[]</a></code> only applies to sequence parsers
+        (like <code class="computeroutput"><span class="identifier">p1</span> <span class="special">&gt;&gt;</span>
+        <span class="identifier">p2</span></code>), and forces all subparsers
+        in the sequence parser to use the same variable for their attribute.
+      </p>
+<p>
+        Another directive, <code class="computeroutput"><a class="link" href="../../boost/parser/separate.html" title="Global separate">separate[]</a></code>,
+        also applies only to sequence parsers, but does the opposite of <code class="computeroutput"><a class="link" href="../../boost/parser/merge.html" title="Global merge">merge[]</a></code>. If forces all the attributes
+        produced by the subparsers of the sequence parser to stay separate, even
+        if they would have combined. For instance, consider this parser.
+      </p>
+<pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">bp</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">parser</span><span class="special">;</span>
+<span class="keyword">auto</span> <span class="identifier">string_and_char</span> <span class="special">=</span> <span class="special">+</span><span class="identifier">bp</span><span class="special">::</span><span class="identifier">char_</span><span class="special">(</span><span class="char">'a'</span><span class="special">)</span> <span class="special">&gt;&gt;</span> <span class="char">' '</span> <span class="special">&gt;&gt;</span> <span class="identifier">bp</span><span class="special">::</span><span class="identifier">cp</span><span class="special">;</span>
+</pre>
+<p>
+        <code class="computeroutput"><span class="identifier">string_and_char</span></code> matches one
+        or more <code class="computeroutput"><span class="char">'a'</span></code>s, followed by some
+        other character. As written above, <code class="computeroutput"><span class="identifier">string_and_char</span></code>
+        produces a <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span></code>, and the final character is appended
+        to the string, after all the <code class="computeroutput"><span class="char">'a'</span></code>s.
+        However, if you wanted to store the final character as a separate value,
+        you would use <code class="computeroutput"><a class="link" href="../../boost/parser/separate.html" title="Global separate">separate[]</a></code>.
+      </p>
+<pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">bp</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">parser</span><span class="special">;</span>
+<span class="keyword">auto</span> <span class="identifier">string_and_char</span> <span class="special">=</span> <span class="identifier">bp</span><span class="special">::</span><span class="identifier">separate</span><span class="special">[+</span><span class="identifier">bp</span><span class="special">::</span><span class="identifier">char_</span><span class="special">(</span><span class="char">'a'</span><span class="special">)</span> <span class="special">&gt;&gt;</span> <span class="char">' '</span> <span class="special">&gt;&gt;</span> <span class="identifier">bp</span><span class="special">::</span><span class="identifier">cp</span><span class="special">];</span>
+</pre>
+<p>
+        With this change, <code class="computeroutput"><span class="identifier">string_and_char</span></code>
+        produces the attribute <code class="computeroutput"><a class="link" href="../../boost/parser/tuple.html" title="Type definition tuple">boost::parser::tuple</a><span class="special">&lt;</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">,</span> <span class="keyword">char32_t</span><span class="special">&gt;</span></code>.
+      </p>
+<h5>
+<a name="boost_parser__proposed_.tutorial.attribute_generation.h7"></a>
+        <span class="phrase"><a name="boost_parser__proposed_.tutorial.attribute_generation._globalname_alt__boost__parser__merge___code__phrase_role__identifier__merge__phrase__phrase_role__special______phrase___code___globalname__and__globalname_alt__boost__parser__separate___code__phrase_role__identifier__separate__phrase__phrase_role__special______phrase___code___globalname__in_more_detail"></a></span><a class="link" href="attribute_generation.html#boost_parser__proposed_.tutorial.attribute_generation._globalname_alt__boost__parser__merge___code__phrase_role__identifier__merge__phrase__phrase_role__special______phrase___code___globalname__and__globalname_alt__boost__parser__separate___code__phrase_role__identifier__separate__phrase__phrase_role__special______phrase___code___globalname__in_more_detail">merge[] and separate[]
+        in more detail</a>
+      </h5>
+<p>
+        As mentioned previously, <code class="computeroutput"><a class="link" href="../../boost/parser/merge.html" title="Global merge">merge[]</a></code>
+        applies only to sequence parsers. All subparsers must have the same attribute,
+        or produce no attribute at all. At least one subparser must produce an attribute.
+        When you use <code class="computeroutput"><a class="link" href="../../boost/parser/merge.html" title="Global merge">merge[]</a></code>, you create a <span class="emphasis"><em>combining
+        group</em></span>. Every parser in a combining group uses the same variable
+        for its attribute. No parser in a combining group interacts with the attributes
+        of any parsers outside of its combining group. Combining groups are disjoint;
+        <code class="computeroutput"><span class="identifier">merge</span><span class="special">[/*...*/]</span>
+        <span class="special">&gt;&gt;</span> <span class="identifier">merge</span><span class="special">[/*...*/]</span></code> will produce a tuple of two attributes,
+        not one.
+      </p>
+<p>
+        <code class="computeroutput"><a class="link" href="../../boost/parser/separate.html" title="Global separate">separate[]</a></code> also applies only to sequence
+        parsers. When you use <code class="computeroutput"><a class="link" href="../../boost/parser/separate.html" title="Global separate">separate[]</a></code>,
+        you disable interaction of all the subparsers' attributes with adjacent attributes,
+        whether they are inside or outside the <code class="computeroutput"><a class="link" href="../../boost/parser/separate.html" title="Global separate">separate[]</a></code>
+        directive; you force each subparser to have a separate attribute.
+      </p>
+<p>
+        The rules for <code class="computeroutput"><a class="link" href="../../boost/parser/merge.html" title="Global merge">merge[]</a></code> and <code class="computeroutput"><a class="link" href="../../boost/parser/separate.html" title="Global separate">separate[]</a></code>
+        overrule the steps of the algorithm described above for combining the attributes
+        of a sequence parser.
+      </p>
+<h5>
+<a name="boost_parser__proposed_.tutorial.attribute_generation.h8"></a>
+        <span class="phrase"><a name="boost_parser__proposed_.tutorial.attribute_generation.other_directives_that_affect_attribute_generation"></a></span><a class="link" href="attribute_generation.html#boost_parser__proposed_.tutorial.attribute_generation.other_directives_that_affect_attribute_generation">Other
+        directives that affect attribute generation</a>
       </h5>
 <p>
         <code class="computeroutput"><a class="link" href="../../boost/parser/omit.html" title="Global omit">omit</a><span class="special">[</span><span class="identifier">p</span><span class="special">]</span></code>
diff --git a/doc/html/boost_parser__proposed_/tutorial/callback_parsing.html b/doc/html/boost_parser__proposed_/tutorial/callback_parsing.html
index 5504c1dc..506346c8 100644
--- a/doc/html/boost_parser__proposed_/tutorial/callback_parsing.html
+++ b/doc/html/boost_parser__proposed_/tutorial/callback_parsing.html
@@ -27,7 +27,7 @@
         cases, you may want to generate attributes sometimes, and not others. <code class="computeroutput">callback_rules</code>
         exist for these kinds of uses. A <code class="computeroutput"><a class="link" href="../../boost/parser/callback_rule.html" title="Struct template callback_rule">callback_rule</a></code> is just like
         a rule, except that it allows the rule's attribute to be returned to the
-        caller via a callback, as long as the parse is started with a call to <code class="computeroutput"><a class="link" href="../../boost/parser/callback_parse_idm22722.html" title="Function template callback_parse">callback_parse()</a></code> instead of <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>. Within a call to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>, a <code class="computeroutput"><a class="link" href="../../boost/parser/callback_rule.html" title="Struct template callback_rule">callback_rule</a></code> is identical
+        caller via a callback, as long as the parse is started with a call to <code class="computeroutput"><a class="link" href="../../boost/parser/callback_parse_idm23049.html" title="Function template callback_parse">callback_parse()</a></code> instead of <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>. Within a call to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>, a <code class="computeroutput"><a class="link" href="../../boost/parser/callback_rule.html" title="Struct template callback_rule">callback_rule</a></code> is identical
         to a regular <code class="computeroutput"><a class="link" href="../../boost/parser/rule.html" title="Struct template rule">rule</a></code>.
       </p>
 <p>
@@ -73,11 +73,11 @@
         </p></td></tr>
 </table></div>
 <p>
-        You opt into callback parsing by parsing with a call to <code class="computeroutput"><a class="link" href="../../boost/parser/callback_parse_idm22722.html" title="Function template callback_parse">callback_parse()</a></code>
-        instead of <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>. If you use <code class="computeroutput">callback_rules</code> with <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>, they're just regular <code class="computeroutput"><a class="link" href="../../boost/parser/rule.html" title="Struct template rule">rules</a></code>.
+        You opt into callback parsing by parsing with a call to <code class="computeroutput"><a class="link" href="../../boost/parser/callback_parse_idm23049.html" title="Function template callback_parse">callback_parse()</a></code>
+        instead of <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>. If you use <code class="computeroutput">callback_rules</code> with <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>, they're just regular <code class="computeroutput"><a class="link" href="../../boost/parser/rule.html" title="Struct template rule">rules</a></code>.
         This allows you to choose whether to do "normal" attribute-generating/attribute-assigning
-        parsing with <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>, or callback parsing with
-        <code class="computeroutput"><a class="link" href="../../boost/parser/callback_parse_idm22722.html" title="Function template callback_parse">callback_parse()</a></code>, without rewriting much
+        parsing with <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>, or callback parsing with
+        <code class="computeroutput"><a class="link" href="../../boost/parser/callback_parse_idm23049.html" title="Function template callback_parse">callback_parse()</a></code>, without rewriting much
         parsing code, if any.
       </p>
 <p>
diff --git a/doc/html/boost_parser__proposed_/tutorial/directives.html b/doc/html/boost_parser__proposed_/tutorial/directives.html
index 811b15b2..58b0bada 100644
--- a/doc/html/boost_parser__proposed_/tutorial/directives.html
+++ b/doc/html/boost_parser__proposed_/tutorial/directives.html
@@ -29,7 +29,7 @@
 <p>
         The directives that are second order parsers are technically directives,
         but since they are also used to create parsers, it is more useful just to
-        focus on that. The directives <code class="computeroutput"><a class="link" href="../../boost/parser/repeat_idm22114.html" title="Function template repeat">repeat()</a></code>
+        focus on that. The directives <code class="computeroutput"><a class="link" href="../../boost/parser/repeat_idm22441.html" title="Function template repeat">repeat()</a></code>
         and <code class="computeroutput"><a class="link" href="../../boost/parser/if_.html" title="Function template if_">if_()</a></code> were already described in
         the section on parsers; we won't say more about them here.
       </p>
@@ -69,8 +69,8 @@ <h5>
         <code class="computeroutput"><a class="link" href="../../boost/parser/subrange.html" title="Struct template subrange">subrange</a><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span></code>,
         where <code class="computeroutput"><span class="identifier">I</span></code> is the type of the
         iterator used within the parse. Note that this may not be the same as the
-        iterator type passed to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>.
-        For instance, when parsing UTF-8, the iterator passed to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>
+        iterator type passed to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>.
+        For instance, when parsing UTF-8, the iterator passed to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>
         may be <code class="computeroutput"><span class="identifier">char8_t</span> <span class="keyword">const</span>
         <span class="special">*</span></code>, but within the parse it will be
         a UTF-8 to UTF-32 transcoding (converting) iterator. Just like <code class="computeroutput"><a class="link" href="../../boost/parser/omit.html" title="Global omit">omit[]</a></code>, <code class="computeroutput"><a class="link" href="../../boost/parser/raw.html" title="Global raw">raw[]</a></code>
@@ -190,7 +190,7 @@ <h5>
 <p>
         <code class="computeroutput"><a class="link" href="../../boost/parser/skip.html" title="Global skip">skip[]</a></code> is like the inverse of <code class="computeroutput"><a class="link" href="../../boost/parser/lexeme.html" title="Global lexeme">lexeme[]</a></code>. It enables skipping in the
         parse, even if it was not enabled before. For example, within a call to
-        <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code> that uses a skipper, let's
+        <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code> that uses a skipper, let's
         say we have these parsers in use:
       </p>
 <pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">bp</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">parser</span><span class="special">;</span>
@@ -201,14 +201,14 @@ <h5>
         The use of <code class="computeroutput"><a class="link" href="../../boost/parser/lexeme.html" title="Global lexeme">lexeme[]</a></code> disables skipping, but then
         the use of <code class="computeroutput"><a class="link" href="../../boost/parser/skip.html" title="Global skip">skip[]</a></code> turns it back on. The net
         result is that the first occurrence of <code class="computeroutput"><span class="identifier">one_or_more</span></code>
-        will use the skipper passed to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>;
+        will use the skipper passed to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>;
         the second will not.
       </p>
 <p>
         <code class="computeroutput"><a class="link" href="../../boost/parser/skip.html" title="Global skip">skip[]</a></code> has another use. You can parameterize
         skip with a different parser to change the skipper just within the scope
-        of the directive. Let's say we passed <code class="computeroutput"><a class="link" href="../../boost/parser/ascii/space.html" title="Global space">ascii::space</a></code> to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>,
-        and we're using these parsers somewhere within that <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>
+        of the directive. Let's say we passed <code class="computeroutput"><a class="link" href="../../boost/parser/ascii/space.html" title="Global space">ascii::space</a></code> to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>,
+        and we're using these parsers somewhere within that <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>
         call:
       </p>
 <pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">bp</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">parser</span><span class="special">;</span>
@@ -217,7 +217,7 @@ <h5>
 </pre>
 <p>
         The first occurrence of <code class="computeroutput"><span class="identifier">zero_or_more</span></code>
-        will use the skipper passed to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>,
+        will use the skipper passed to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>,
         which is <code class="computeroutput"><a class="link" href="../../boost/parser/ascii/space.html" title="Global space">ascii::space</a></code>;
         the second will use <code class="computeroutput"><a class="link" href="../../boost/parser/ws.html" title="Global ws">ws</a></code>
         as its skipper.
diff --git a/doc/html/boost_parser__proposed_/tutorial/error_handling_and_debugging.html b/doc/html/boost_parser__proposed_/tutorial/error_handling_and_debugging.html
index 14fe0cd2..cf25cc21 100644
--- a/doc/html/boost_parser__proposed_/tutorial/error_handling_and_debugging.html
+++ b/doc/html/boost_parser__proposed_/tutorial/error_handling_and_debugging.html
@@ -118,7 +118,7 @@ <h5>
         Sometimes, during the writing of a parser, you make a simple mistake that
         is diagnosed horrifyingly, due to the high number of template instantiations
         between the line you just wrote and the point of use (usually, the call to
-        <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>). By "sometimes",
+        <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>). By "sometimes",
         I mean "almost always and many, many times". Boost.Parser has a
         workaround for situations like this. The workaround is to make the ill-formed
         code well-formed in as many circumstances as possible, and then do a runtime
@@ -145,14 +145,14 @@ <h5>
         nearly impossible to debug simply by looking at the parser's code. Stepping
         through the parse in a debugger is even worse. To provide a reasonable chance
         of debugging your parsers, Boost.Parser has a trace mode that you can turn
-        on simply by providing an extra parameter to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>
-        or <code class="computeroutput"><a class="link" href="../../boost/parser/callback_parse_idm22722.html" title="Function template callback_parse">callback_parse()</a></code>:
+        on simply by providing an extra parameter to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>
+        or <code class="computeroutput"><a class="link" href="../../boost/parser/callback_parse_idm23049.html" title="Function template callback_parse">callback_parse()</a></code>:
       </p>
 <pre class="programlisting">boost::parser::parse(input, parser, boost::parser::trace::on);
 </pre>
 <p>
-        Every overload of <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>
-        and <code class="computeroutput"><a class="link" href="../../boost/parser/callback_parse_idm22722.html" title="Function template callback_parse">callback_parse()</a></code> takes this final parameter,
+        Every overload of <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>
+        and <code class="computeroutput"><a class="link" href="../../boost/parser/callback_parse_idm23049.html" title="Function template callback_parse">callback_parse()</a></code> takes this final parameter,
         which is defaulted to <code class="computeroutput">boost::parser::trace::off</code>.
       </p>
 <p>
diff --git a/doc/html/boost_parser__proposed_/tutorial/hello__whomever.html b/doc/html/boost_parser__proposed_/tutorial/hello__whomever.html
index 5637ee6a..485a269b 100644
--- a/doc/html/boost_parser__proposed_/tutorial/hello__whomever.html
+++ b/doc/html/boost_parser__proposed_/tutorial/hello__whomever.html
@@ -63,7 +63,7 @@
         fail. Even an empty string will match it.
       </p>
 <p>
-        The parse operation is performed by calling the <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>
+        The parse operation is performed by calling the <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>
         function, passing the parser as one of the arguments:
       </p>
 <pre class="programlisting"><span class="identifier">bp</span><span class="special">::</span><span class="identifier">parse</span><span class="special">(</span><span class="identifier">input</span><span class="special">,</span> <span class="special">*</span><span class="identifier">bp</span><span class="special">::</span><span class="identifier">char_</span><span class="special">,</span> <span class="identifier">result</span><span class="special">);</span>
@@ -73,7 +73,7 @@
         the range to parse; <code class="computeroutput"><span class="special">*</span><span class="identifier">bp</span><span class="special">::</span><span class="identifier">char_</span></code>,
         the parser used to do the parse; and <code class="computeroutput"><span class="identifier">result</span></code>,
         an out-parameter into which to put the result of the parse. Don't get too
-        caught up on this method of getting the parse result out of <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>; there are multiple ways
+        caught up on this method of getting the parse result out of <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>; there are multiple ways
         of doing so, and we'll cover all of them in subsequent sections.
       </p>
 <p>
@@ -83,7 +83,7 @@
         that we'll cover later.
       </p>
 <p>
-        The effects of this call to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>
+        The effects of this call to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>
         is not very interesting — since the parser we gave it cannot ever
         fail, and because we're placing the output in the same type as the input,
         it just copies the contents of <code class="computeroutput"><span class="identifier">input</span></code>
diff --git a/doc/html/boost_parser__proposed_/tutorial/memory_allocation.html b/doc/html/boost_parser__proposed_/tutorial/memory_allocation.html
index 8000cb3d..c5a0c50f 100644
--- a/doc/html/boost_parser__proposed_/tutorial/memory_allocation.html
+++ b/doc/html/boost_parser__proposed_/tutorial/memory_allocation.html
@@ -47,7 +47,7 @@
             type for the attribute that does not allocate.
           </li>
 <li class="listitem">
-            The attribute for <code class="computeroutput"><a class="link" href="../../boost/parser/repeat_idm22114.html" title="Function template repeat">repeat</a>(p)</code> in
+            The attribute for <code class="computeroutput"><a class="link" href="../../boost/parser/repeat_idm22441.html" title="Function template repeat">repeat</a>(p)</code> in
             all its forms, including <code class="computeroutput">operator*()</code>, <code class="computeroutput">operator+()</code>,
             and <code class="computeroutput">operator%()</code>, is <code class="computeroutput">std::vector&lt;<span class="emphasis"><em><code class="literal">ATTR</code></em></span>(p)&gt;</code>,
             the use of which implies allocation. You can avoid this allocation by
diff --git a/doc/html/boost_parser__proposed_/tutorial/more_about_rules.html b/doc/html/boost_parser__proposed_/tutorial/more_about_rules.html
index c054c2db..6c1b8967 100644
--- a/doc/html/boost_parser__proposed_/tutorial/more_about_rules.html
+++ b/doc/html/boost_parser__proposed_/tutorial/more_about_rules.html
@@ -54,7 +54,7 @@ <h5>
         the attribute type</a>
       </h5>
 <p>
-        We saw in the previous section how <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>
+        We saw in the previous section how <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>
         is flexible in what types it will accept as attribute out-parameters.
       </p>
 <p>
@@ -90,8 +90,8 @@ <h5>
 <p>
       </p>
 <p>
-        You can then use it in a call to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>,
-        and <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code> will return a <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special">&lt;</span><span class="keyword">double</span><span class="special">&gt;&gt;</span></code>:
+        You can then use it in a call to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>,
+        and <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code> will return a <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special">&lt;</span><span class="keyword">double</span><span class="special">&gt;&gt;</span></code>:
       </p>
 <p>
 </p>
@@ -100,7 +100,7 @@ <h5>
 <p>
       </p>
 <p>
-        If you call <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code> with an attribute out-parameter,
+        If you call <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code> with an attribute out-parameter,
         it must be exactly <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special">&lt;</span><span class="keyword">double</span><span class="special">&gt;</span></code>:
       </p>
 <pre class="programlisting"><span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special">&lt;</span><span class="keyword">double</span><span class="special">&gt;</span> <span class="identifier">vec_result</span><span class="special">;</span>
@@ -141,8 +141,8 @@ <h5>
 </pre>
 <p>
         Where <code class="computeroutput"><span class="identifier">attribute_out_param</span></code>
-        is the attribute out-parameter we pass to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>.
-        If that final move assignment is ill-formed, the call to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>
+        is the attribute out-parameter we pass to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>.
+        If that final move assignment is ill-formed, the call to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>
         is too.
       </p>
 <p>
diff --git a/doc/html/boost_parser__proposed_/tutorial/parsing__struct_s.html b/doc/html/boost_parser__proposed_/tutorial/parsing__struct_s.html
index 3bcac4ee..37f14b83 100644
--- a/doc/html/boost_parser__proposed_/tutorial/parsing__struct_s.html
+++ b/doc/html/boost_parser__proposed_/tutorial/parsing__struct_s.html
@@ -189,7 +189,7 @@
           This automatic use of <code class="computeroutput"><span class="keyword">struct</span></code>s
           as if they were tuples depends on a bit of metaprogramming. Due to compiler
           limits, the metaprogram that detects the number of data members of a <code class="computeroutput"><span class="keyword">struct</span></code> is limited to a maximum number of
-          members. Fortunately, that limit is configurable; see <code class="computeroutput"><a class="link" href="../../BOOST_PARSER_MAX__idm18208.html" title="Macro BOOST_PARSER_MAX_AGGREGATE_SIZE">BOOST_PARSER_MAX_AGGREGATE_SIZE</a></code>.
+          members. Fortunately, that limit is configurable; see <code class="computeroutput"><a class="link" href="../../BOOST_PARSER_MAX__idm18478.html" title="Macro BOOST_PARSER_MAX_AGGREGATE_SIZE">BOOST_PARSER_MAX_AGGREGATE_SIZE</a></code>.
         </p></td></tr>
 </table></div>
 </div>
diff --git a/doc/html/boost_parser__proposed_/tutorial/symbol_tables.html b/doc/html/boost_parser__proposed_/tutorial/symbol_tables.html
index 4981d3ed..8f6bec07 100644
--- a/doc/html/boost_parser__proposed_/tutorial/symbol_tables.html
+++ b/doc/html/boost_parser__proposed_/tutorial/symbol_tables.html
@@ -118,7 +118,7 @@
         <code class="computeroutput"><span class="keyword">char32_t</span></code>, or <code class="computeroutput"><span class="keyword">char</span>
         <span class="keyword">const</span> <span class="special">*</span></code>
         to form a literal parser. You can also make a literal parser by writing
-        <code class="computeroutput"><a class="link" href="../../boost/parser/lit_idm22165.html" title="Function lit">lit()</a></code>, passing an argument of
+        <code class="computeroutput"><a class="link" href="../../boost/parser/lit_idm22492.html" title="Function lit">lit()</a></code>, passing an argument of
         one of the previously mentioned types.
       </p>
 <p>
@@ -139,7 +139,7 @@
           Boost.Parser subparser <code class="computeroutput"><span class="identifier">p</span></code>,
           as in <code class="computeroutput"><span class="char">'x'</span> <span class="special">&gt;&gt;</span>
           <span class="identifier">p</span></code>. Otherwise, you need to wrap
-          it in a call to <code class="computeroutput"><a class="link" href="../../boost/parser/lit_idm22165.html" title="Function lit">lit()</a></code>, or use the <code class="computeroutput"><span class="identifier">_l</span></code> <a href="https://en.cppreference.com/w/cpp/language/user_literal" target="_top">UDL</a>
+          it in a call to <code class="computeroutput"><a class="link" href="../../boost/parser/lit_idm22492.html" title="Function lit">lit()</a></code>, or use the <code class="computeroutput"><span class="identifier">_l</span></code> <a href="https://en.cppreference.com/w/cpp/language/user_literal" target="_top">UDL</a>
           suffix.
         </p></td></tr>
 </table></div>
diff --git a/doc/html/boost_parser__proposed_/tutorial/terminology.html b/doc/html/boost_parser__proposed_/tutorial/terminology.html
index 264fadd0..7ba1b250 100644
--- a/doc/html/boost_parser__proposed_/tutorial/terminology.html
+++ b/doc/html/boost_parser__proposed_/tutorial/terminology.html
@@ -69,17 +69,17 @@
         The <span class="emphasis"><em>top-level parse</em></span> is the parse operation being performed
         by the top-level parser. This term is necessary because, though most parse
         failures are local to a particular parser, some parse failures cause the
-        call to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code> to indicate failure of the
+        call to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code> to indicate failure of the
         entire parse. For these cases, we say that such a local failure "causes
         the top-level parse to fail".
       </p>
 <p>
         Throughout the Boost.Parser documentation, I will refer to "the call
-        to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>". Read this as "the
+        to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>". Read this as "the
         call to any one of the functions described in <a class="link" href="the__parse____api.html" title="The parse() API">the
         <code class="computeroutput"><span class="identifier">parse</span><span class="special">()</span></code>
-        API</a>". That includes <code class="computeroutput"><a class="link" href="../../boost/parser/prefix_parse_idm22431.html" title="Function template prefix_parse">prefix_parse()</a></code>,
-        <code class="computeroutput"><a class="link" href="../../boost/parser/callback_parse_idm22722.html" title="Function template callback_parse">callback_parse()</a></code>, and <code class="computeroutput"><a class="link" href="../../boost/parser/callback_prefix_p_idm22683.html" title="Function template callback_prefix_parse">callback_prefix_parse()</a></code>.
+        API</a>". That includes <code class="computeroutput"><a class="link" href="../../boost/parser/prefix_parse_idm22758.html" title="Function template prefix_parse">prefix_parse()</a></code>,
+        <code class="computeroutput"><a class="link" href="../../boost/parser/callback_parse_idm23049.html" title="Function template callback_parse">callback_parse()</a></code>, and <code class="computeroutput"><a class="link" href="../../boost/parser/callback_prefix_p_idm23010.html" title="Function template callback_prefix_parse">callback_prefix_parse()</a></code>.
       </p>
 <p>
         There are a couple of special kinds of parsers that come up often in this
diff --git a/doc/html/boost_parser__proposed_/tutorial/the__parse____api.html b/doc/html/boost_parser__proposed_/tutorial/the__parse____api.html
index c355f0a9..4564064e 100644
--- a/doc/html/boost_parser__proposed_/tutorial/the__parse____api.html
+++ b/doc/html/boost_parser__proposed_/tutorial/the__parse____api.html
@@ -43,7 +43,7 @@
           </li>
 <li class="listitem">
             The overloads with <code class="computeroutput"><span class="identifier">prefix_</span></code>
-            in their name take an iterator/sentinel pair. For example <code class="computeroutput"><a class="link" href="../../boost/parser/prefix_parse_idm22431.html" title="Function template prefix_parse">prefix_parse</a><span class="special">(</span><span class="identifier">first</span><span class="special">,</span> <span class="identifier">last</span><span class="special">,</span> <span class="identifier">p</span><span class="special">,</span> <a class="link" href="../../boost/parser/ws.html" title="Global ws">ws</a><span class="special">)</span></code>,
+            in their name take an iterator/sentinel pair. For example <code class="computeroutput"><a class="link" href="../../boost/parser/prefix_parse_idm22758.html" title="Function template prefix_parse">prefix_parse</a><span class="special">(</span><span class="identifier">first</span><span class="special">,</span> <span class="identifier">last</span><span class="special">,</span> <span class="identifier">p</span><span class="special">,</span> <a class="link" href="../../boost/parser/ws.html" title="Global ws">ws</a><span class="special">)</span></code>,
             which parses the range <code class="computeroutput"><span class="special">[</span><span class="identifier">first</span><span class="special">,</span> <span class="identifier">last</span><span class="special">)</span></code>,
             advancing <code class="computeroutput"><span class="identifier">first</span></code> as it
             goes. If the parse succeeds, the entire input may or may not have been
@@ -51,11 +51,11 @@
             will indicate the last location within the input that <code class="computeroutput"><span class="identifier">p</span></code>
             matched. The <span class="bold"><strong>whole</strong></span> input was matched
             if and only if <code class="computeroutput"><span class="identifier">first</span> <span class="special">==</span> <span class="identifier">last</span></code>
-            after the call to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>.
+            after the call to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>.
           </li>
 <li class="listitem">
-            When you call any of the range-like overloads of <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>,
-            for example <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse</a><span class="special">(</span><span class="identifier">r</span><span class="special">,</span> <span class="identifier">p</span><span class="special">,</span> <a class="link" href="../../boost/parser/ws.html" title="Global ws">ws</a><span class="special">)</span></code>, <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>
+            When you call any of the range-like overloads of <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>,
+            for example <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse</a><span class="special">(</span><span class="identifier">r</span><span class="special">,</span> <span class="identifier">p</span><span class="special">,</span> <a class="link" href="../../boost/parser/ws.html" title="Global ws">ws</a><span class="special">)</span></code>, <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>
             only indicates success if <span class="bold"><strong>all</strong></span> of <code class="computeroutput"><span class="identifier">r</span></code> was matched by <code class="computeroutput"><span class="identifier">p</span></code>.
           </li>
 </ul></div>
@@ -76,8 +76,8 @@ <h5>
         overloads</a>
       </h5>
 <p>
-        There are eight overloads of <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>
-        and <code class="computeroutput"><a class="link" href="../../boost/parser/prefix_parse_idm22431.html" title="Function template prefix_parse">prefix_parse()</a></code> combined, because there
+        There are eight overloads of <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>
+        and <code class="computeroutput"><a class="link" href="../../boost/parser/prefix_parse_idm22758.html" title="Function template prefix_parse">prefix_parse()</a></code> combined, because there
         are three either/or options in how you call them.
       </p>
 <h5>
@@ -86,7 +86,7 @@ <h5>
         versus range-like</a>
       </h5>
 <p>
-        You can call <code class="computeroutput"><a class="link" href="../../boost/parser/prefix_parse_idm22431.html" title="Function template prefix_parse">prefix_parse()</a></code>
+        You can call <code class="computeroutput"><a class="link" href="../../boost/parser/prefix_parse_idm22758.html" title="Function template prefix_parse">prefix_parse()</a></code>
         with an iterator and sentinel that delimit a range of character values. For
         example:
       </p>
@@ -105,13 +105,13 @@ <h5>
         The iterator/sentinel overloads can parse successfully without matching the
         entire input. You can tell if the entire input was matched by checking if
         <code class="computeroutput"><span class="identifier">first</span> <span class="special">==</span>
-        <span class="identifier">last</span></code> is true after <code class="computeroutput"><a class="link" href="../../boost/parser/prefix_parse_idm22431.html" title="Function template prefix_parse">prefix_parse()</a></code> returns.
+        <span class="identifier">last</span></code> is true after <code class="computeroutput"><a class="link" href="../../boost/parser/prefix_parse_idm22758.html" title="Function template prefix_parse">prefix_parse()</a></code> returns.
       </p>
 <p>
-        By contrast, you call <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>
+        By contrast, you call <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>
         with a range of character values. When the range is a reference to an array
         of characters, any terminating <code class="computeroutput"><span class="number">0</span></code>
-        is ignored; this allows calls like <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse</a><span class="special">(</span><span class="string">"str"</span><span class="special">,</span>
+        is ignored; this allows calls like <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse</a><span class="special">(</span><span class="string">"str"</span><span class="special">,</span>
         <span class="identifier">p</span><span class="special">)</span></code>
         to work naturally.
       </p>
@@ -128,8 +128,8 @@ <h5>
 <span class="keyword">auto</span> <span class="identifier">result_3</span> <span class="special">=</span> <span class="identifier">bp</span><span class="special">::</span><span class="identifier">parse</span><span class="special">(</span><span class="identifier">str_3</span> <span class="special">|</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">parser</span><span class="special">::</span><span class="identifier">as_utf16</span><span class="special">,</span> <span class="identifier">p</span><span class="special">,</span> <span class="identifier">bp</span><span class="special">::</span><span class="identifier">ws</span><span class="special">);</span>
 </pre>
 <p>
-        You can also call <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>
-        with a pointer to a null-terminated string of character values. <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code> considers pointers to null-terminated
+        You can also call <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>
+        with a pointer to a null-terminated string of character values. <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code> considers pointers to null-terminated
         strings to be ranges, since, for any pointer <code class="computeroutput"><span class="identifier">T</span>
         <span class="special">*</span></code> to a null-terminated string, <code class="computeroutput"><span class="identifier">T</span> <span class="special">*</span></code> is
         isomorphic with <code class="computeroutput"><span class="identifier">subrange</span><span class="special">&lt;</span><span class="identifier">T</span> <span class="special">*,</span> <a class="link" href="../../boost/parser/null_sentinel_t.html" title="Type definition null_sentinel_t">null_sentinel_t</a><span class="special">&gt;</span></code>.
@@ -153,7 +153,7 @@ <h5>
 <p>
         Since there is no way to indicate that <code class="computeroutput"><span class="identifier">p</span></code>
         matches the input, but only a prefix of the input was matched, the range-like
-        (non-iterator/sentinel) overloads of <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>
+        (non-iterator/sentinel) overloads of <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>
         indicate failure if the entire input is not matched.
       </p>
 <h5>
@@ -170,14 +170,14 @@ <h5>
 <span class="keyword">auto</span> <span class="identifier">result_2</span> <span class="special">=</span> <span class="identifier">bp</span><span class="special">::</span><span class="identifier">parse</span><span class="special">(</span><span class="identifier">str</span><span class="special">,</span> <span class="identifier">p</span><span class="special">);</span>                  <span class="comment">// !!result_2 is true; *result_2 is "two words"</span>
 </pre>
 <p>
-        When you call <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code> <span class="bold"><strong>with</strong></span>
+        When you call <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code> <span class="bold"><strong>with</strong></span>
         an attribute out-parameter and parser <code class="computeroutput"><span class="identifier">p</span></code>,
         the expected type is <span class="bold"><strong>something like</strong></span> <code class="computeroutput"><span class="emphasis"><em><code class="literal">ATTR</code></em></span><span class="special">(</span><span class="identifier">p</span><span class="special">)</span></code>.
         It doesn't have to be exactly that; I'll explain in a bit. The return type
         is <code class="computeroutput"><span class="keyword">bool</span></code>.
       </p>
 <p>
-        When you call <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code> <span class="bold"><strong>without</strong></span>
+        When you call <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code> <span class="bold"><strong>without</strong></span>
         an attribute out-parameter and parser <code class="computeroutput"><span class="identifier">p</span></code>,
         the return type is <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">optional</span><span class="special">&lt;</span><span class="emphasis"><em><code class="literal">ATTR</code></em></span><span class="special">(</span><span class="identifier">p</span><span class="special">)&gt;</span></code>.
         Note that when <code class="computeroutput"><span class="emphasis"><em><code class="literal">ATTR</code></em></span><span class="special">(</span><span class="identifier">p</span><span class="special">)</span></code>
@@ -206,8 +206,8 @@ <h5>
         of attribute out-parameters</a>
       </h5>
 <p>
-        For any call to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code> that takes an attribute
-        out-parameter, like <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse</a><span class="special">(</span><span class="string">"str"</span><span class="special">,</span>
+        For any call to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code> that takes an attribute
+        out-parameter, like <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse</a><span class="special">(</span><span class="string">"str"</span><span class="special">,</span>
         <span class="identifier">p</span><span class="special">,</span> <span class="identifier">bp</span><span class="special">::</span><span class="identifier">ws</span><span class="special">,</span> <span class="identifier">out</span><span class="special">)</span></code>,
         the call is well-formed for a number of possible types of <code class="computeroutput"><span class="identifier">out</span></code>;
         <code class="computeroutput"><span class="keyword">decltype</span><span class="special">(</span><span class="identifier">out</span><span class="special">)</span></code> does
@@ -303,7 +303,7 @@ <h5>
             to <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">&gt;</span></code>,
             or <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special">&lt;</span><span class="keyword">char32_t</span><span class="special">&gt;</span></code>
             to <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">deque</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">&gt;</span></code>),
-            the call to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code> will often still be
+            the call to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code> will often still be
             well-formed.
           </li>
 <li class="listitem">
@@ -332,7 +332,7 @@ <h5>
         versus non-Unicode parsing</a>
       </h5>
 <p>
-        A call to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code> either considers the entire
+        A call to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code> either considers the entire
         input to be in a UTF format (UTF-8, UTF-16, or UTF-32), or it considers the
         entire input to be in some unknown encoding. Here is how it deduces which
         case the call falls under:
@@ -372,7 +372,7 @@ <h5>
           If you want to ensure all input is parsed as Unicode, pass the input range
           <code class="computeroutput"><span class="identifier">r</span></code> as <code class="computeroutput"><span class="identifier">r</span>
           <span class="special">|</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">parser</span><span class="special">::</span><span class="identifier">as_utf32</span></code>
-          — that's the first thing that happens to it inside <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code> in the Unicode parsing
+          — that's the first thing that happens to it inside <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code> in the Unicode parsing
           path anyway.
         </p></td></tr>
 </table></div>
@@ -397,7 +397,7 @@ <h5>
 <p>
         Debugging parsers is notoriously difficult once they reach a certain size.
         To get a verbose trace of your parse, pass <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">parser</span><span class="special">::</span><span class="identifier">trace</span><span class="special">::</span><span class="identifier">on</span></code> as
-        the final parameter to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>.
+        the final parameter to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>.
         It will show you the current parser being matched, the next few characters
         to be parsed, and any attributes generated. See the <a class="link" href="error_handling_and_debugging.html" title="Error Handling and Debugging">Error
         Handling and Debugging</a> section of the tutorial for details.
@@ -408,7 +408,7 @@ <h5>
         and error handlers</a>
       </h5>
 <p>
-        Each call to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code> can optionally have a globals
+        Each call to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code> can optionally have a globals
         object associated with it. To use a particular globals object with you parser,
         you call <code class="computeroutput"><a class="link" href="../../boost/parser/with_globals.html" title="Function template with_globals">with_globals()</a></code> to create a new parser with
         the globals object in it:
@@ -423,7 +423,7 @@ <h5>
 <span class="keyword">auto</span> <span class="identifier">result</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">parser</span><span class="special">::</span><span class="identifier">parse</span><span class="special">(</span><span class="string">"str"</span><span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">parser</span><span class="special">::</span><span class="identifier">with_globals</span><span class="special">(</span><span class="identifier">parser</span><span class="special">,</span> <span class="identifier">globals</span><span class="special">));</span>
 </pre>
 <p>
-        Every semantic action within that call to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>
+        Every semantic action within that call to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>
         can access the same <code class="computeroutput"><span class="identifier">globals_t</span></code>
         object using <code class="computeroutput"><span class="identifier">_globals</span><span class="special">(</span><span class="identifier">ctx</span><span class="special">)</span></code>.
       </p>
diff --git a/doc/html/boost_parser__proposed_/tutorial/the_parse_context.html b/doc/html/boost_parser__proposed_/tutorial/the_parse_context.html
index 09383dd2..82fc3edb 100644
--- a/doc/html/boost_parser__proposed_/tutorial/the_parse_context.html
+++ b/doc/html/boost_parser__proposed_/tutorial/the_parse_context.html
@@ -98,7 +98,7 @@ <h5>
       </h5>
 <p>
         <code class="computeroutput"><a class="link" href="../../boost/parser/_begin.html" title="Function template _begin">_begin()</a></code> and <code class="computeroutput"><a class="link" href="../../boost/parser/_end.html" title="Function template _end">_end()</a></code>
-        return the beginning and end of the range that you passed to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>, respectively. <code class="computeroutput"><a class="link" href="../../boost/parser/_where.html" title="Function template _where">_where()</a></code> returns a <code class="computeroutput"><a class="link" href="../../boost/parser/subrange.html" title="Struct template subrange">subrange</a></code> indicating the bounds
+        return the beginning and end of the range that you passed to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>, respectively. <code class="computeroutput"><a class="link" href="../../boost/parser/_where.html" title="Function template _where">_where()</a></code> returns a <code class="computeroutput"><a class="link" href="../../boost/parser/subrange.html" title="Struct template subrange">subrange</a></code> indicating the bounds
         of the input matched by the current parse. <code class="computeroutput"><a class="link" href="../../boost/parser/_where.html" title="Function template _where">_where()</a></code>
         can be useful if you just want to parse some text and return a result consisting
         of where certain elements are located, without producing any other attributes.
@@ -109,7 +109,7 @@ <h5>
       </h5>
 <p>
         <code class="computeroutput"><a class="link" href="../../boost/parser/_error_handler.html" title="Function template _error_handler">_error_handler()</a></code> returns a reference to the
-        error handler associated with the parser passed to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>.
+        error handler associated with the parser passed to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>.
         Any error handler must have the following member functions:
       </p>
 <p>
@@ -175,8 +175,8 @@ <h5>
       </h5>
 <p>
         There are also some convenience functions that make the above code a little
-        less verbose, <code class="computeroutput"><a class="link" href="../../boost/parser/report_error_idm22027.html" title="Function template _report_error">_report_error()</a></code>
-        and <code class="computeroutput"><a class="link" href="../../boost/parser/report_warning_idm22039.html" title="Function template _report_warning">_report_warning()</a></code>:
+        less verbose, <code class="computeroutput"><a class="link" href="../../boost/parser/report_error_idm22354.html" title="Function template _report_error">_report_error()</a></code>
+        and <code class="computeroutput"><a class="link" href="../../boost/parser/report_warning_idm22366.html" title="Function template _report_warning">_report_warning()</a></code>:
       </p>
 <pre class="programlisting"><span class="special">[](</span><span class="keyword">auto</span> <span class="special">&amp;</span> <span class="identifier">ctx</span><span class="special">)</span> <span class="special">{</span>
     <span class="comment">// Assume we have a std::vector of open tags, and another</span>
diff --git a/doc/html/boost_parser__proposed_/tutorial/the_parsers_and_their_uses.html b/doc/html/boost_parser__proposed_/tutorial/the_parsers_and_their_uses.html
index 4d5d44ed..69c629a0 100644
--- a/doc/html/boost_parser__proposed_/tutorial/the_parsers_and_their_uses.html
+++ b/doc/html/boost_parser__proposed_/tutorial/the_parsers_and_their_uses.html
@@ -822,7 +822,7 @@
 <tr>
 <td>
                 <p>
-                  <code class="computeroutput"><a class="link" href="../../boost/parser/lit_idm22165.html" title="Function lit">lit</a></code><code class="computeroutput"><span class="special">(</span><span class="identifier">c</span><span class="special">)</span></code>
+                  <code class="computeroutput"><a class="link" href="../../boost/parser/lit_idm22492.html" title="Function lit">lit</a></code><code class="computeroutput"><span class="special">(</span><span class="identifier">c</span><span class="special">)</span></code>
                 </p>
               </td>
 <td>
@@ -837,7 +837,7 @@
               </td>
 <td>
                 <p>
-                  <code class="computeroutput"><a class="link" href="../../boost/parser/lit_idm22165.html" title="Function lit">lit()</a></code> does <span class="bold"><strong>not</strong></span> take parse arguments.
+                  <code class="computeroutput"><a class="link" href="../../boost/parser/lit_idm22492.html" title="Function lit">lit()</a></code> does <span class="bold"><strong>not</strong></span> take parse arguments.
                 </p>
               </td>
 </tr>
@@ -860,7 +860,7 @@
 <td>
                 <p>
                   This is a <a href="https://en.cppreference.com/w/cpp/language/user_literal" target="_top">UDL</a>
-                  that represents <code class="computeroutput"><a class="link" href="../../boost/parser/lit_idm22165.html" title="Function lit">lit</a><span class="special">(</span><span class="identifier">c</span><span class="special">)</span></code>,
+                  that represents <code class="computeroutput"><a class="link" href="../../boost/parser/lit_idm22492.html" title="Function lit">lit</a><span class="special">(</span><span class="identifier">c</span><span class="special">)</span></code>,
                   for example <code class="computeroutput"><span class="char">'F'</span><span class="identifier">_l</span></code>.
                 </p>
               </td>
@@ -868,7 +868,7 @@
 <tr>
 <td>
                 <p>
-                  <code class="computeroutput"><a class="link" href="../../boost/parser/lit_idm22165.html" title="Function lit">lit</a></code><code class="computeroutput"><span class="special">(</span><span class="identifier">r</span><span class="special">)</span></code>
+                  <code class="computeroutput"><a class="link" href="../../boost/parser/lit_idm22492.html" title="Function lit">lit</a></code><code class="computeroutput"><span class="special">(</span><span class="identifier">r</span><span class="special">)</span></code>
                 </p>
               </td>
 <td>
@@ -883,7 +883,7 @@
               </td>
 <td>
                 <p>
-                  <code class="computeroutput"><a class="link" href="../../boost/parser/lit_idm22165.html" title="Function lit">lit()</a></code> does <span class="bold"><strong>not</strong></span> take parse arguments.
+                  <code class="computeroutput"><a class="link" href="../../boost/parser/lit_idm22492.html" title="Function lit">lit()</a></code> does <span class="bold"><strong>not</strong></span> take parse arguments.
                 </p>
               </td>
 </tr>
@@ -906,7 +906,7 @@
 <td>
                 <p>
                   This is a <a href="https://en.cppreference.com/w/cpp/language/user_literal" target="_top">UDL</a>
-                  that represents <code class="computeroutput"><a class="link" href="../../boost/parser/lit_idm22165.html" title="Function lit">lit</a><span class="special">(</span><span class="identifier">s</span><span class="special">)</span></code>,
+                  that represents <code class="computeroutput"><a class="link" href="../../boost/parser/lit_idm22492.html" title="Function lit">lit</a><span class="special">(</span><span class="identifier">s</span><span class="special">)</span></code>,
                   for example <code class="computeroutput"><span class="string">"a string"</span><span class="identifier">_l</span></code>.
                 </p>
               </td>
@@ -1465,7 +1465,7 @@
 <tr>
 <td>
                 <p>
-                  <code class="computeroutput"><a class="link" href="../../boost/parser/repeat_idm22114.html" title="Function template repeat">repeat</a><span class="special">(</span><span class="identifier">arg0</span><span class="special">)[</span><span class="identifier">p</span><span class="special">]</span></code>
+                  <code class="computeroutput"><a class="link" href="../../boost/parser/repeat_idm22441.html" title="Function template repeat">repeat</a><span class="special">(</span><span class="identifier">arg0</span><span class="special">)[</span><span class="identifier">p</span><span class="special">]</span></code>
                 </p>
               </td>
 <td>
@@ -1489,7 +1489,7 @@
                   <code class="computeroutput"><a class="link" href="../../boost/parser/eps.html" title="Global eps">eps</a></code>
                   an unlimited number of times creates an infinite loop, which is
                   undefined behavior in C++. Boost.Parser will assert in debug mode
-                  when it encounters <code class="computeroutput"><a class="link" href="../../boost/parser/repeat_idm22114.html" title="Function template repeat">repeat</a><span class="special">(</span><a class="link" href="../../boost/parser/Inf.html" title="Global Inf">Inf</a><span class="special">)[</span><a class="link" href="../../boost/parser/eps.html" title="Global eps">eps</a><span class="special">]</span></code> (this applies to unconditional
+                  when it encounters <code class="computeroutput"><a class="link" href="../../boost/parser/repeat_idm22441.html" title="Function template repeat">repeat</a><span class="special">(</span><a class="link" href="../../boost/parser/Inf.html" title="Global Inf">Inf</a><span class="special">)[</span><a class="link" href="../../boost/parser/eps.html" title="Global eps">eps</a><span class="special">]</span></code> (this applies to unconditional
                   <code class="computeroutput"><a class="link" href="../../boost/parser/eps.html" title="Global eps">eps</a></code>
                   only).
                 </p>
@@ -1498,7 +1498,7 @@
 <tr>
 <td>
                 <p>
-                  <code class="computeroutput"><a class="link" href="../../boost/parser/repeat_idm22114.html" title="Function template repeat">repeat</a><span class="special">(</span><span class="identifier">arg0</span><span class="special">,</span> <span class="identifier">arg1</span><span class="special">)[</span><span class="identifier">p</span><span class="special">]</span></code>
+                  <code class="computeroutput"><a class="link" href="../../boost/parser/repeat_idm22441.html" title="Function template repeat">repeat</a><span class="special">(</span><span class="identifier">arg0</span><span class="special">,</span> <span class="identifier">arg1</span><span class="special">)[</span><span class="identifier">p</span><span class="special">]</span></code>
                 </p>
               </td>
 <td>
@@ -1522,7 +1522,7 @@
                   <code class="computeroutput"><a class="link" href="../../boost/parser/eps.html" title="Global eps">eps</a></code>
                   an unlimited number of times creates an infinite loop, which is
                   undefined behavior in C++. Boost.Parser will assert in debug mode
-                  when it encounters <code class="computeroutput"><a class="link" href="../../boost/parser/repeat_idm22114.html" title="Function template repeat">repeat</a><span class="special">(</span><span class="identifier">n</span><span class="special">,</span> <a class="link" href="../../boost/parser/Inf.html" title="Global Inf">Inf</a><span class="special">)[</span><a class="link" href="../../boost/parser/eps.html" title="Global eps">eps</a><span class="special">]</span></code> (this applies to unconditional
+                  when it encounters <code class="computeroutput"><a class="link" href="../../boost/parser/repeat_idm22441.html" title="Function template repeat">repeat</a><span class="special">(</span><span class="identifier">n</span><span class="special">,</span> <a class="link" href="../../boost/parser/Inf.html" title="Global Inf">Inf</a><span class="special">)[</span><a class="link" href="../../boost/parser/eps.html" title="Global eps">eps</a><span class="special">]</span></code> (this applies to unconditional
                   <code class="computeroutput"><a class="link" href="../../boost/parser/eps.html" title="Global eps">eps</a></code>
                   only).
                 </p>
diff --git a/doc/html/boost_parser__proposed_/tutorial/unicode_support.html b/doc/html/boost_parser__proposed_/tutorial/unicode_support.html
index 4d12cc17..caf53952 100644
--- a/doc/html/boost_parser__proposed_/tutorial/unicode_support.html
+++ b/doc/html/boost_parser__proposed_/tutorial/unicode_support.html
@@ -27,9 +27,9 @@
         different in the two code paths, as they are written generically. The only
         difference is that the Unicode code path parses the input as a range of code
         points, and the non-Unicode path does not. In effect, this means that, in
-        the Unicode code path, when you call <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse</a><span class="special">(</span><span class="identifier">r</span><span class="special">,</span> <span class="identifier">p</span><span class="special">)</span></code> for some input range <code class="computeroutput"><span class="identifier">r</span></code>
+        the Unicode code path, when you call <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse</a><span class="special">(</span><span class="identifier">r</span><span class="special">,</span> <span class="identifier">p</span><span class="special">)</span></code> for some input range <code class="computeroutput"><span class="identifier">r</span></code>
         and some parser <code class="computeroutput"><span class="identifier">p</span></code>, the parse
-        happens as if you called <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse</a><span class="special">(</span><span class="identifier">r</span> <span class="special">|</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">parser</span><span class="special">::</span><span class="identifier">as_utf32</span><span class="special">,</span> <span class="identifier">p</span><span class="special">)</span></code>
+        happens as if you called <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse</a><span class="special">(</span><span class="identifier">r</span> <span class="special">|</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">parser</span><span class="special">::</span><span class="identifier">as_utf32</span><span class="special">,</span> <span class="identifier">p</span><span class="special">)</span></code>
         instead. (Of course, it does not matter if <code class="computeroutput"><span class="identifier">r</span></code>
         is a null-terminated pointer, a proper range, or an iterator/sentinel pair;
         those all work fine with <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">parser</span><span class="special">::</span><span class="identifier">as_utf32</span></code>.)
@@ -197,7 +197,7 @@ <h5>
 <span class="identifier">assert</span><span class="special">(</span><span class="identifier">result_2</span><span class="special">);</span>
 </pre>
 <p>
-        The first call to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>
+        The first call to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>
         treats each <code class="computeroutput"><span class="keyword">char</span></code> as a code point,
         and since <code class="computeroutput"><span class="string">"ö"</span></code> is the
         pair of code units <code class="computeroutput"><span class="number">0xc3</span></code> <code class="computeroutput"><span class="number">0xb6</span></code>, the parse matches the second code unit
@@ -206,7 +206,7 @@ <h5>
         each code unit/<code class="computeroutput"><span class="keyword">char</span></code> in <code class="computeroutput"><span class="identifier">str</span></code> is treated as an independent code point.
       </p>
 <p>
-        The second call to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22462.html" title="Function template parse">parse()</a></code>
+        The second call to <code class="computeroutput"><a class="link" href="../../boost/parser/parse_idm22789.html" title="Function template parse">parse()</a></code>
         succeeds because, when the parse gets to the code point for <code class="computeroutput"><span class="char">'ö'</span></code>, it is <code class="computeroutput"><span class="number">0xf6</span></code>
         (U+00F6), which does not match the <code class="computeroutput"><span class="special">-</span>
         <span class="number">0xb6</span></code> part of the parser.
diff --git a/doc/html/header/boost/parser/config_hpp.html b/doc/html/header/boost/parser/config_hpp.html
index 72cd8c0a..62d67bd2 100644
--- a/doc/html/header/boost/parser/config_hpp.html
+++ b/doc/html/header/boost/parser/config_hpp.html
@@ -7,25 +7,25 @@
 <link rel="home" href="../../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../../reference.html" title="Reference">
 <link rel="prev" href="concepts_hpp.html" title="Header &lt;boost/parser/concepts.hpp&gt;">
-<link rel="next" href="../../../BOOST_PARSER_NO_R_idm18187.html" title="Macro BOOST_PARSER_NO_RUNTIME_ASSERTIONS">
+<link rel="next" href="../../../BOOST_PARSER_NO_R_idm18457.html" title="Macro BOOST_PARSER_NO_RUNTIME_ASSERTIONS">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="concepts_hpp.html"><img src="../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../../reference.html"><img src="../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../images/home.png" alt="Home"></a><a accesskey="n" href="../../../BOOST_PARSER_NO_R_idm18187.html"><img src="../../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="concepts_hpp.html"><img src="../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../../reference.html"><img src="../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../images/home.png" alt="Home"></a><a accesskey="n" href="../../../BOOST_PARSER_NO_R_idm18457.html"><img src="../../../images/next.png" alt="Next"></a>
 </div>
 <div class="section">
 <div class="titlepage"><div><div><h3 class="title">
 <a name="header.boost.parser.config_hpp"></a>Header &lt;<a href="../../../../../boost/parser/config.hpp" target="_top">boost/parser/config.hpp</a>&gt;</h3></div></div></div>
 <pre class="synopsis">
 
-<a class="link" href="../../../BOOST_PARSER_NO_R_idm18187.html" title="Macro BOOST_PARSER_NO_RUNTIME_ASSERTIONS">BOOST_PARSER_NO_RUNTIME_ASSERTIONS</a>
+<a class="link" href="../../../BOOST_PARSER_NO_R_idm18457.html" title="Macro BOOST_PARSER_NO_RUNTIME_ASSERTIONS">BOOST_PARSER_NO_RUNTIME_ASSERTIONS</a>
 <a class="link" href="../../../BOOST_PARSER_ASSERT.html" title="Macro BOOST_PARSER_ASSERT">BOOST_PARSER_ASSERT</a>(condition)
-<a class="link" href="../../../BOOST_PARSER_DISA_idm18199.html" title="Macro BOOST_PARSER_DISABLE_CONCEPTS">BOOST_PARSER_DISABLE_CONCEPTS</a>
-<a class="link" href="../../../BOOST_PARSER_DISA_idm18203.html" title="Macro BOOST_PARSER_DISABLE_HANA_TUPLE">BOOST_PARSER_DISABLE_HANA_TUPLE</a>
-<a class="link" href="../../../BOOST_PARSER_MAX__idm18208.html" title="Macro BOOST_PARSER_MAX_AGGREGATE_SIZE">BOOST_PARSER_MAX_AGGREGATE_SIZE</a>
+<a class="link" href="../../../BOOST_PARSER_DISA_idm18469.html" title="Macro BOOST_PARSER_DISABLE_CONCEPTS">BOOST_PARSER_DISABLE_CONCEPTS</a>
+<a class="link" href="../../../BOOST_PARSER_DISA_idm18473.html" title="Macro BOOST_PARSER_DISABLE_HANA_TUPLE">BOOST_PARSER_DISABLE_HANA_TUPLE</a>
+<a class="link" href="../../../BOOST_PARSER_MAX__idm18478.html" title="Macro BOOST_PARSER_MAX_AGGREGATE_SIZE">BOOST_PARSER_MAX_AGGREGATE_SIZE</a>
 <a class="link" href="../../../BOOST_PARSER_USE_CONCEPTS.html" title="Macro BOOST_PARSER_USE_CONCEPTS">BOOST_PARSER_USE_CONCEPTS</a>
-<a class="link" href="../../../BOOST_PARSER_USE__idm18212.html" title="Macro BOOST_PARSER_USE_CXX20_EQUALITY_AND_COMPARISON">BOOST_PARSER_USE_CXX20_EQUALITY_AND_COMPARISON</a>
+<a class="link" href="../../../BOOST_PARSER_USE__idm18482.html" title="Macro BOOST_PARSER_USE_CXX20_EQUALITY_AND_COMPARISON">BOOST_PARSER_USE_CXX20_EQUALITY_AND_COMPARISON</a>
 <a class="link" href="../../../BOOST_PARSER_USE_STD_TUPLE.html" title="Macro BOOST_PARSER_USE_STD_TUPLE">BOOST_PARSER_USE_STD_TUPLE</a>
 <a class="link" href="../../../BOOST_PARSER_CONSTEXPR.html" title="Macro BOOST_PARSER_CONSTEXPR">BOOST_PARSER_CONSTEXPR</a></pre>
 </div>
@@ -36,7 +36,7 @@
 </div>
 <hr>
 <div class="spirit-nav">
-<a accesskey="p" href="concepts_hpp.html"><img src="../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../../reference.html"><img src="../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../images/home.png" alt="Home"></a><a accesskey="n" href="../../../BOOST_PARSER_NO_R_idm18187.html"><img src="../../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="concepts_hpp.html"><img src="../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../../reference.html"><img src="../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../images/home.png" alt="Home"></a><a accesskey="n" href="../../../BOOST_PARSER_NO_R_idm18457.html"><img src="../../../images/next.png" alt="Next"></a>
 </div>
 </body>
 </html>
diff --git a/doc/html/header/boost/parser/error_handling_fwd_hpp.html b/doc/html/header/boost/parser/error_handling_fwd_hpp.html
index e003c5db..27b5c1d8 100644
--- a/doc/html/header/boost/parser/error_handling_fwd_hpp.html
+++ b/doc/html/header/boost/parser/error_handling_fwd_hpp.html
@@ -28,12 +28,12 @@
     <span class="keyword">enum</span> <a class="link" href="../../../boost/parser/diagnostic_kind.html" title="Type diagnostic_kind">diagnostic_kind</a><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">&gt;</span> 
       <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> 
-      <a class="link" href="../../../boost/parser/write_formatted_m_idm18608.html" title="Function template write_formatted_message"><span class="identifier">write_formatted_message</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring_view</span><span class="special">,</span> <span class="identifier">Iter</span><span class="special">,</span> <span class="identifier">Iter</span><span class="special">,</span> 
+      <a class="link" href="../../../boost/parser/write_formatted_m_idm18878.html" title="Function template write_formatted_message"><span class="identifier">write_formatted_message</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring_view</span><span class="special">,</span> <span class="identifier">Iter</span><span class="special">,</span> <span class="identifier">Iter</span><span class="special">,</span> 
                               <span class="identifier">Sentinel</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">int64_t</span> <span class="special">=</span> <span class="number">80</span><span class="special">,</span> 
                               <span class="identifier">int64_t</span> <span class="special">=</span> <span class="number">40</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">&gt;</span> 
       <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> 
-      <a class="link" href="../../../boost/parser/write_formatted_e_idm18634.html" title="Function template write_formatted_expectation_failure_error_message"><span class="identifier">write_formatted_expectation_failure_error_message</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span><span class="special">,</span> 
+      <a class="link" href="../../../boost/parser/write_formatted_e_idm18904.html" title="Function template write_formatted_expectation_failure_error_message"><span class="identifier">write_formatted_expectation_failure_error_message</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span><span class="special">,</span> 
                                                         <span class="identifier">std</span><span class="special">::</span><span class="identifier">wstring_view</span><span class="special">,</span> 
                                                         <span class="identifier">Iter</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
                                                         <a class="link" href="../../../boost/parser/parse_error.html" title="Struct template parse_error">parse_error</a><span class="special">&lt;</span> <span class="identifier">Iter</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> 
diff --git a/doc/html/header/boost/parser/error_handling_hpp.html b/doc/html/header/boost/parser/error_handling_hpp.html
index 6db819a8..e195e672 100644
--- a/doc/html/header/boost/parser/error_handling_hpp.html
+++ b/doc/html/header/boost/parser/error_handling_hpp.html
@@ -23,12 +23,12 @@
     <span class="keyword">struct</span> <a class="link" href="../../../boost/parser/rethrow_error_handler.html" title="Struct rethrow_error_handler">rethrow_error_handler</a><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">&gt;</span> 
       <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> 
-      <a class="link" href="../../../boost/parser/write_formatted_m_idm18323.html" title="Function template write_formatted_message"><span class="identifier">write_formatted_message</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">Iter</span><span class="special">,</span> <span class="identifier">Iter</span><span class="special">,</span> 
+      <a class="link" href="../../../boost/parser/write_formatted_m_idm18593.html" title="Function template write_formatted_message"><span class="identifier">write_formatted_message</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">Iter</span><span class="special">,</span> <span class="identifier">Iter</span><span class="special">,</span> 
                               <span class="identifier">Sentinel</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">int64_t</span> <span class="special">=</span> <span class="number">80</span><span class="special">,</span> 
                               <span class="identifier">int64_t</span> <span class="special">=</span> <span class="number">40</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Sentinel<span class="special">&gt;</span> 
       <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> 
-      <a class="link" href="../../../boost/parser/write_formatted_e_idm18349.html" title="Function template write_formatted_expectation_failure_error_message"><span class="identifier">write_formatted_expectation_failure_error_message</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span><span class="special">,</span> 
+      <a class="link" href="../../../boost/parser/write_formatted_e_idm18619.html" title="Function template write_formatted_expectation_failure_error_message"><span class="identifier">write_formatted_expectation_failure_error_message</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span><span class="special">,</span> 
                                                         <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> 
                                                         <span class="identifier">Iter</span><span class="special">,</span> <span class="identifier">Sentinel</span><span class="special">,</span> 
                                                         <a class="link" href="../../../boost/parser/parse_error.html" title="Struct template parse_error">parse_error</a><span class="special">&lt;</span> <span class="identifier">Iter</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> 
diff --git a/doc/html/header/boost/parser/parser_fwd_hpp.html b/doc/html/header/boost/parser/parser_fwd_hpp.html
index afedd29c..9b270502 100644
--- a/doc/html/header/boost/parser/parser_fwd_hpp.html
+++ b/doc/html/header/boost/parser/parser_fwd_hpp.html
@@ -23,10 +23,12 @@
     <span class="keyword">typedef</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a name="boost.parser.no_attribute"></a><span class="identifier">no_attribute</span><span class="special">;</span>
     <span class="keyword">typedef</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a name="boost.parser.no_local_state"></a><span class="identifier">no_local_state</span><span class="special">;</span>
     <span class="keyword">typedef</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a name="boost.parser.no_params"></a><span class="identifier">no_params</span><span class="special">;</span>
+
+    <span class="keyword">constexpr</span> <span class="keyword">bool</span> <a class="link" href="../../../boost/parser/enable_optional.html" title="Global enable_optional">enable_optional</a><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-      <span class="keyword">void</span> <a class="link" href="../../../boost/parser/report_error_idm22877.html" title="Function template _report_error"><span class="identifier">_report_error</span></a><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">Iter</span><span class="special">)</span><span class="special">;</span>
+      <span class="keyword">void</span> <a class="link" href="../../../boost/parser/report_error_idm23209.html" title="Function template _report_error"><span class="identifier">_report_error</span></a><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">Iter</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iter<span class="special">,</span> <span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-      <span class="keyword">void</span> <a class="link" href="../../../boost/parser/report_warning_idm22892.html" title="Function template _report_warning"><span class="identifier">_report_warning</span></a><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">Iter</span><span class="special">)</span><span class="special">;</span>
+      <span class="keyword">void</span> <a class="link" href="../../../boost/parser/report_warning_idm23224.html" title="Function template _report_warning"><span class="identifier">_report_warning</span></a><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">Iter</span><span class="special">)</span><span class="special">;</span>
   <span class="special">}</span>
 <span class="special">}</span></pre>
 </div>
diff --git a/doc/html/header/boost/parser/parser_hpp.html b/doc/html/header/boost/parser/parser_hpp.html
index 9872befc..845daba0 100644
--- a/doc/html/header/boost/parser/parser_hpp.html
+++ b/doc/html/header/boost/parser/parser_hpp.html
@@ -6,13 +6,13 @@
 <meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
 <link rel="home" href="../../../index.html" title="Chapter 1. Boost.Parser (Proposed)">
 <link rel="up" href="../../../reference.html" title="Reference">
-<link rel="prev" href="../../../boost/parser/write_formatted_e_idm18634.html" title="Function template write_formatted_expectation_failure_error_message">
+<link rel="prev" href="../../../boost/parser/write_formatted_e_idm18904.html" title="Function template write_formatted_expectation_failure_error_message">
 <link rel="next" href="../../../boost/parser/ascii/alnum.html" title="Global alnum">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 </head>
 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
 <div class="spirit-nav">
-<a accesskey="p" href="../../../boost/parser/write_formatted_e_idm18634.html"><img src="../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../../reference.html"><img src="../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../images/home.png" alt="Home"></a><a accesskey="n" href="../../../boost/parser/ascii/alnum.html"><img src="../../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="../../../boost/parser/write_formatted_e_idm18904.html"><img src="../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../../reference.html"><img src="../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../images/home.png" alt="Home"></a><a accesskey="n" href="../../../boost/parser/ascii/alnum.html"><img src="../../../images/next.png" alt="Next"></a>
 </div>
 <div class="section">
 <div class="titlepage"><div><div><h3 class="title">
@@ -42,6 +42,7 @@
              <span class="keyword">typename</span> Expected<span class="special">&gt;</span> 
       <span class="keyword">struct</span> <a class="link" href="../../../boost/parser/int_parser.html" title="Struct template int_parser">int_parser</a><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> <span class="keyword">struct</span> <a class="link" href="../../../boost/parser/lexeme_parser.html" title="Struct template lexeme_parser">lexeme_parser</a><span class="special">;</span>
+    <span class="keyword">struct</span> <a class="link" href="../../../boost/parser/merge_directive.html" title="Struct merge_directive">merge_directive</a><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> <span class="keyword">struct</span> <a class="link" href="../../../boost/parser/no_case_parser.html" title="Struct template no_case_parser">no_case_parser</a><span class="special">;</span>
     <span class="keyword">struct</span> <a class="link" href="../../../boost/parser/none.html" title="Struct none">none</a><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> <span class="keyword">struct</span> <a class="link" href="../../../boost/parser/omit_parser.html" title="Struct template omit_parser">omit_parser</a><span class="special">;</span>
@@ -61,7 +62,9 @@
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">bool</span> CanUseCallbacks<span class="special">,</span> <span class="keyword">typename</span> TagType<span class="special">,</span> <span class="keyword">typename</span> Attribute<span class="special">,</span> 
              <span class="keyword">typename</span> LocalState<span class="special">,</span> <span class="keyword">typename</span> ParamsTuple<span class="special">&gt;</span> 
       <span class="keyword">struct</span> <a class="link" href="../../../boost/parser/rule_parser.html" title="Struct template rule_parser">rule_parser</a><span class="special">;</span>
-    <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ParserTuple<span class="special">,</span> <span class="keyword">typename</span> BacktrackingTuple<span class="special">&gt;</span> 
+    <span class="keyword">struct</span> <a class="link" href="../../../boost/parser/separate_directive.html" title="Struct separate_directive">separate_directive</a><span class="special">;</span>
+    <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> ParserTuple<span class="special">,</span> <span class="keyword">typename</span> BacktrackingTuple<span class="special">,</span> 
+             <span class="keyword">typename</span> CombiningGroups<span class="special">&gt;</span> 
       <span class="keyword">struct</span> <a class="link" href="../../../boost/parser/seq_parser.html" title="Struct template seq_parser">seq_parser</a><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> SkipParser <span class="special">=</span> detail::nope<span class="special">&gt;</span> <span class="keyword">struct</span> <a class="link" href="../../../boost/parser/skip_directive.html" title="Struct template skip_directive">skip_directive</a><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">&gt;</span> <span class="keyword">struct</span> <a class="link" href="../../../boost/parser/skip_parser.html" title="Struct template skip_parser">skip_parser</a><span class="special">;</span>
@@ -78,8 +81,6 @@
 
     <span class="keyword">enum</span> <a class="link" href="../../../boost/parser/trace.html" title="Type trace">trace</a><span class="special">;</span>
 
-    <span class="keyword">constexpr</span> <span class="keyword">bool</span> <a class="link" href="../../../boost/parser/enable_optional.html" title="Global enable_optional">enable_optional</a><span class="special">;</span>
-    <span class="keyword">constexpr</span> <span class="keyword">bool</span> <a class="link" href="../../../boost/parser/enable_variant.html" title="Global enable_variant">enable_variant</a><span class="special">;</span>
     <span class="keyword">constexpr</span> <span class="keyword">bool</span> <a class="link" href="../../../boost/parser/container.html" title="Global container">container</a><span class="special">;</span>
     <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="../../../boost/parser/_p.html" title="Global _p">_p</a><span class="special">;</span>
     <span class="identifier">int64_t</span> <span class="keyword">const</span> <a class="link" href="../../../boost/parser/Inf.html" title="Global Inf">Inf</a><span class="special">;</span>
@@ -89,6 +90,8 @@
     <span class="keyword">constexpr</span> <a class="link" href="../../../boost/parser/directive.html" title="Struct template directive">directive</a><span class="special">&lt;</span> <a class="link" href="../../../boost/parser/lexeme_parser.html" title="Struct template lexeme_parser">lexeme_parser</a> <span class="special">&gt;</span> <a class="link" href="../../../boost/parser/lexeme.html" title="Global lexeme">lexeme</a><span class="special">;</span>
     <span class="keyword">constexpr</span> <a class="link" href="../../../boost/parser/directive.html" title="Struct template directive">directive</a><span class="special">&lt;</span> <a class="link" href="../../../boost/parser/no_case_parser.html" title="Struct template no_case_parser">no_case_parser</a> <span class="special">&gt;</span> <a class="link" href="../../../boost/parser/no_case.html" title="Global no_case">no_case</a><span class="special">;</span>
     <span class="keyword">constexpr</span> <a class="link" href="../../../boost/parser/skip_directive.html" title="Struct template skip_directive">skip_directive</a> <a class="link" href="../../../boost/parser/skip.html" title="Global skip">skip</a><span class="special">;</span>
+    <span class="keyword">constexpr</span> <a class="link" href="../../../boost/parser/merge_directive.html" title="Struct merge_directive">merge_directive</a> <a class="link" href="../../../boost/parser/merge.html" title="Global merge">merge</a><span class="special">;</span>
+    <span class="keyword">constexpr</span> <a class="link" href="../../../boost/parser/separate_directive.html" title="Struct separate_directive">separate_directive</a> <a class="link" href="../../../boost/parser/separate.html" title="Global separate">separate</a><span class="special">;</span>
     <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="../../../boost/parser/eps.html" title="Global eps">eps</a><span class="special">;</span>
     <span class="keyword">constexpr</span> <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <a class="link" href="../../../boost/parser/eoi_parser.html" title="Struct eoi_parser">eoi_parser</a> <span class="special">&gt;</span> <a class="link" href="../../../boost/parser/eoi.html" title="Global eoi">eoi</a><span class="special">;</span>
     <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="../../../boost/parser/char_.html" title="Global char_">char_</a><span class="special">;</span>
@@ -121,143 +124,143 @@
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> <span class="keyword">decltype</span><span class="special">(</span><span class="keyword">auto</span><span class="special">)</span> <a class="link" href="../../../boost/parser/_globals.html" title="Function template _globals"><span class="identifier">_globals</span></a><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> <span class="keyword">decltype</span><span class="special">(</span><span class="keyword">auto</span><span class="special">)</span> <a class="link" href="../../../boost/parser/_error_handler.html" title="Function template _error_handler"><span class="identifier">_error_handler</span></a><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-      <span class="keyword">void</span> <a class="link" href="../../../boost/parser/report_error_idm22027.html" title="Function template _report_error"><span class="identifier">_report_error</span></a><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">)</span><span class="special">;</span>
+      <span class="keyword">void</span> <a class="link" href="../../../boost/parser/report_error_idm22354.html" title="Function template _report_error"><span class="identifier">_report_error</span></a><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-      <span class="keyword">void</span> <a class="link" href="../../../boost/parser/report_warning_idm22039.html" title="Function template _report_warning"><span class="identifier">_report_warning</span></a><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">)</span><span class="special">;</span>
+      <span class="keyword">void</span> <a class="link" href="../../../boost/parser/report_warning_idm22366.html" title="Function template _report_warning"><span class="identifier">_report_warning</span></a><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Context<span class="special">&gt;</span> 
       <span class="keyword">decltype</span><span class="special">(</span><span class="keyword">auto</span><span class="special">)</span> <a name="boost.parser._no_case"></a><span class="identifier">_no_case</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-      <span class="keyword">void</span> <a name="boost.parser.report_error_idm22057"></a><span class="identifier">_report_error</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
+      <span class="keyword">void</span> <a name="boost.parser.report_error_idm22384"></a><span class="identifier">_report_error</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
                          <span class="identifier">I</span> location<span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> Context<span class="special">&gt;</span> 
-      <span class="keyword">void</span> <a name="boost.parser.report_warning_idm22068"></a><span class="identifier">_report_warning</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
+      <span class="keyword">void</span> <a name="boost.parser.report_warning_idm22395"></a><span class="identifier">_report_warning</span><span class="special">(</span><span class="identifier">Context</span> <span class="keyword">const</span> <span class="special">&amp;</span> context<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string_view</span> message<span class="special">,</span> 
                            <span class="identifier">I</span> location<span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> <span class="keyword">typename</span> ErrorHandler<span class="special">&gt;</span> 
       <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/with_globals.html" title="Function template with_globals"><span class="identifier">with_globals</span></a><span class="special">(</span><span class="emphasis"><em><span class="identifier">unspecified</span></em></span><span class="special">,</span> <span class="identifier">GlobalState</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> <span class="keyword">typename</span> ErrorHandler<span class="special">&gt;</span> 
       <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/with_error_handler.html" title="Function template with_error_handler"><span class="identifier">with_error_handler</span></a><span class="special">(</span><a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <a class="link" href="../../../boost/parser/default_error_handler.html" title="Struct default_error_handler">default_error_handler</a> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> 
                               <span class="identifier">ErrorHandler</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
-    <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <span class="keyword">constexpr</span> <a class="link" href="../../../boost/parser/repeat_directive.html" title="Struct template repeat_directive">repeat_directive</a><span class="special">&lt;</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">T</span> <span class="special">&gt;</span> <a class="link" href="../../../boost/parser/repeat_idm22114.html" title="Function template repeat"><span class="identifier">repeat</span></a><span class="special">(</span><span class="identifier">T</span><span class="special">)</span><span class="special">;</span>
+    <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <span class="keyword">constexpr</span> <a class="link" href="../../../boost/parser/repeat_directive.html" title="Struct template repeat_directive">repeat_directive</a><span class="special">&lt;</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">T</span> <span class="special">&gt;</span> <a class="link" href="../../../boost/parser/repeat_idm22441.html" title="Function template repeat"><span class="identifier">repeat</span></a><span class="special">(</span><span class="identifier">T</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> MinType<span class="special">,</span> <span class="keyword">typename</span> MaxType<span class="special">&gt;</span> 
-      <span class="keyword">constexpr</span> <a class="link" href="../../../boost/parser/repeat_directive.html" title="Struct template repeat_directive">repeat_directive</a><span class="special">&lt;</span> <span class="identifier">MinType</span><span class="special">,</span> <span class="identifier">MaxType</span> <span class="special">&gt;</span> <a class="link" href="../../../boost/parser/repeat_idm22132.html" title="Function template repeat"><span class="identifier">repeat</span></a><span class="special">(</span><span class="identifier">MinType</span><span class="special">,</span> <span class="identifier">MaxType</span><span class="special">)</span><span class="special">;</span>
+      <span class="keyword">constexpr</span> <a class="link" href="../../../boost/parser/repeat_directive.html" title="Struct template repeat_directive">repeat_directive</a><span class="special">&lt;</span> <span class="identifier">MinType</span><span class="special">,</span> <span class="identifier">MaxType</span> <span class="special">&gt;</span> <a class="link" href="../../../boost/parser/repeat_idm22459.html" title="Function template repeat"><span class="identifier">repeat</span></a><span class="special">(</span><span class="identifier">MinType</span><span class="special">,</span> <span class="identifier">MaxType</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Attribute<span class="special">&gt;</span> <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/attr.html" title="Function template attr"><span class="identifier">attr</span></a><span class="special">(</span><span class="identifier">Attribute</span><span class="special">)</span><span class="special">;</span>
-    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/lit_idm22165.html" title="Function lit"><span class="identifier">lit</span></a><span class="special">(</span><span class="keyword">char</span><span class="special">)</span><span class="special">;</span>
-    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/lit_idm22171.html" title="Function lit"><span class="identifier">lit</span></a><span class="special">(</span><span class="identifier">char8_t</span><span class="special">)</span><span class="special">;</span>
-    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/lit_idm22177.html" title="Function lit"><span class="identifier">lit</span></a><span class="special">(</span><span class="keyword">char32_t</span><span class="special">)</span><span class="special">;</span>
-    <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">&gt;</span>  <a name="boost.parser.string_parser_idm22183"></a><span class="identifier">string_parser</span><span class="special">(</span><span class="identifier">R</span> r<span class="special">)</span><span class="special">;</span>
+    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/lit_idm22492.html" title="Function lit"><span class="identifier">lit</span></a><span class="special">(</span><span class="keyword">char</span><span class="special">)</span><span class="special">;</span>
+    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/lit_idm22498.html" title="Function lit"><span class="identifier">lit</span></a><span class="special">(</span><span class="identifier">char8_t</span><span class="special">)</span><span class="special">;</span>
+    <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/lit_idm22504.html" title="Function lit"><span class="identifier">lit</span></a><span class="special">(</span><span class="keyword">char32_t</span><span class="special">)</span><span class="special">;</span>
+    <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">&gt;</span>  <a name="boost.parser.string_parser_idm22510"></a><span class="identifier">string_parser</span><span class="special">(</span><span class="identifier">R</span> r<span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">&gt;</span> <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/string.html" title="Function template string"><span class="identifier">string</span></a><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span><span class="special">)</span><span class="special">;</span>
-    <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">&gt;</span> <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/lit_idm22198.html" title="Function template lit"><span class="identifier">lit</span></a><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span><span class="special">)</span><span class="special">;</span>
+    <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">&gt;</span> <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/lit_idm22525.html" title="Function template lit"><span class="identifier">lit</span></a><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Predicate<span class="special">&gt;</span> <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/if_.html" title="Function template if_"><span class="identifier">if_</span></a><span class="special">(</span><span class="identifier">Predicate</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/switch_.html" title="Function template switch_"><span class="identifier">switch_</span></a><span class="special">(</span><span class="identifier">T</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/operator_idm22236.html" title="Function template operator&gt;&gt;"><span class="keyword">operator</span><span class="special">&gt;&gt;</span></a><span class="special">(</span><span class="keyword">char</span><span class="special">,</span> <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span><span class="special">)</span><span class="special">;</span>
+      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/operator_idm22563.html" title="Function template operator&gt;&gt;"><span class="keyword">operator</span><span class="special">&gt;&gt;</span></a><span class="special">(</span><span class="keyword">char</span><span class="special">,</span> <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/operator_idm22248.html" title="Function template operator&gt;&gt;"><span class="keyword">operator</span><span class="special">&gt;&gt;</span></a><span class="special">(</span><span class="keyword">char32_t</span><span class="special">,</span> <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span><span class="special">)</span><span class="special">;</span>
+      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/operator_idm22575.html" title="Function template operator&gt;&gt;"><span class="keyword">operator</span><span class="special">&gt;&gt;</span></a><span class="special">(</span><span class="keyword">char32_t</span><span class="special">,</span> <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> 
              <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/operator_idm22260.html" title="Function template operator&gt;&gt;"><span class="keyword">operator</span><span class="special">&gt;&gt;</span></a><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span><span class="special">,</span> <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span><span class="special">)</span><span class="special">;</span>
+      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/operator_idm22587.html" title="Function template operator&gt;&gt;"><span class="keyword">operator</span><span class="special">&gt;&gt;</span></a><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span><span class="special">,</span> <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/operator_idm22275.html" title="Function template operator&gt;"><span class="keyword">operator</span><span class="special">&gt;</span></a><span class="special">(</span><span class="keyword">char</span><span class="special">,</span> <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span><span class="special">)</span><span class="special">;</span>
+      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/operator_idm22602.html" title="Function template operator&gt;"><span class="keyword">operator</span><span class="special">&gt;</span></a><span class="special">(</span><span class="keyword">char</span><span class="special">,</span> <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/operator_idm22287.html" title="Function template operator&gt;"><span class="keyword">operator</span><span class="special">&gt;</span></a><span class="special">(</span><span class="keyword">char32_t</span><span class="special">,</span> <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span><span class="special">)</span><span class="special">;</span>
+      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/operator_idm22614.html" title="Function template operator&gt;"><span class="keyword">operator</span><span class="special">&gt;</span></a><span class="special">(</span><span class="keyword">char32_t</span><span class="special">,</span> <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> 
              <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/operator_idm22299.html" title="Function template operator&gt;"><span class="keyword">operator</span><span class="special">&gt;</span></a><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span><span class="special">,</span> <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span><span class="special">)</span><span class="special">;</span>
+      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/operator_idm22626.html" title="Function template operator&gt;"><span class="keyword">operator</span><span class="special">&gt;</span></a><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span><span class="special">,</span> <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/operator_idm22314.html" title="Function template operator|"><span class="keyword">operator</span><span class="special">|</span></a><span class="special">(</span><span class="keyword">char</span><span class="special">,</span> <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span><span class="special">)</span><span class="special">;</span>
+      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/operator_idm22641.html" title="Function template operator|"><span class="keyword">operator</span><span class="special">|</span></a><span class="special">(</span><span class="keyword">char</span><span class="special">,</span> <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/operator_idm22326.html" title="Function template operator|"><span class="keyword">operator</span><span class="special">|</span></a><span class="special">(</span><span class="keyword">char32_t</span><span class="special">,</span> <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span><span class="special">)</span><span class="special">;</span>
+      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/operator_idm22653.html" title="Function template operator|"><span class="keyword">operator</span><span class="special">|</span></a><span class="special">(</span><span class="keyword">char32_t</span><span class="special">,</span> <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> 
              <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/operator_idm22338.html" title="Function template operator|"><span class="keyword">operator</span><span class="special">|</span></a><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span><span class="special">,</span> <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span><span class="special">)</span><span class="special">;</span>
+      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/operator_idm22665.html" title="Function template operator|"><span class="keyword">operator</span><span class="special">|</span></a><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span><span class="special">,</span> <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/operator-_idm22353.html" title="Function template operator-"><span class="keyword">operator</span><span class="special">-</span></a><span class="special">(</span><span class="keyword">char</span><span class="special">,</span> <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span><span class="special">)</span><span class="special">;</span>
+      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/operator-_idm22680.html" title="Function template operator-"><span class="keyword">operator</span><span class="special">-</span></a><span class="special">(</span><span class="keyword">char</span><span class="special">,</span> <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/operator-_idm22365.html" title="Function template operator-"><span class="keyword">operator</span><span class="special">-</span></a><span class="special">(</span><span class="keyword">char32_t</span><span class="special">,</span> <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span><span class="special">)</span><span class="special">;</span>
+      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/operator-_idm22692.html" title="Function template operator-"><span class="keyword">operator</span><span class="special">-</span></a><span class="special">(</span><span class="keyword">char32_t</span><span class="special">,</span> <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> 
              <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/operator-_idm22377.html" title="Function template operator-"><span class="keyword">operator</span><span class="special">-</span></a><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span><span class="special">,</span> <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span><span class="special">)</span><span class="special">;</span>
+      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/operator-_idm22704.html" title="Function template operator-"><span class="keyword">operator</span><span class="special">-</span></a><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span><span class="special">,</span> <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/operator%_idm22392.html" title="Function template operator%"><span class="keyword">operator</span><span class="special">%</span></a><span class="special">(</span><span class="keyword">char</span><span class="special">,</span> <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span><span class="special">)</span><span class="special">;</span>
+      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/operator%_idm22719.html" title="Function template operator%"><span class="keyword">operator</span><span class="special">%</span></a><span class="special">(</span><span class="keyword">char</span><span class="special">,</span> <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Parser<span class="special">&gt;</span> 
-      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/operator%_idm22404.html" title="Function template operator%"><span class="keyword">operator</span><span class="special">%</span></a><span class="special">(</span><span class="keyword">char32_t</span><span class="special">,</span> <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span><span class="special">)</span><span class="special">;</span>
+      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/operator%_idm22731.html" title="Function template operator%"><span class="keyword">operator</span><span class="special">%</span></a><span class="special">(</span><span class="keyword">char32_t</span><span class="special">,</span> <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> 
              <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/operator%_idm22416.html" title="Function template operator%"><span class="keyword">operator</span><span class="special">%</span></a><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span><span class="special">,</span> <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span><span class="special">)</span><span class="special">;</span>
+      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/operator%_idm22743.html" title="Function template operator%"><span class="keyword">operator</span><span class="special">%</span></a><span class="special">(</span><span class="identifier">R</span> <span class="special">&amp;&amp;</span><span class="special">,</span> <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span> <span class="special">&gt;</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
              <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> Attr<span class="special">,</span> 
              <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_iter_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span> <span class="special">&amp;&amp;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_equality_comparable_with_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-      <span class="keyword">bool</span> <a class="link" href="../../../boost/parser/prefix_parse_idm22431.html" title="Function template prefix_parse"><span class="identifier">prefix_parse</span></a><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">S</span><span class="special">,</span> 
+      <span class="keyword">bool</span> <a class="link" href="../../../boost/parser/prefix_parse_idm22758.html" title="Function template prefix_parse"><span class="identifier">prefix_parse</span></a><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">S</span><span class="special">,</span> 
                         <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> 
                         <span class="identifier">Attr</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">trace</span> <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
              <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> Attr<span class="special">,</span> 
              <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-      <span class="keyword">bool</span> <a class="link" href="../../../boost/parser/parse_idm22462.html" title="Function template parse"><span class="identifier">parse</span></a><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> 
+      <span class="keyword">bool</span> <a class="link" href="../../../boost/parser/parse_idm22789.html" title="Function template parse"><span class="identifier">parse</span></a><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> 
                  <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> 
                  <span class="identifier">Attr</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">trace</span> <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
              <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> 
              <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_iter_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span> <span class="special">&amp;&amp;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_equality_comparable_with_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-      <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/prefix_parse_idm22491.html" title="Function template prefix_parse"><span class="identifier">prefix_parse</span></a><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">S</span><span class="special">,</span> 
+      <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/prefix_parse_idm22818.html" title="Function template prefix_parse"><span class="identifier">prefix_parse</span></a><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">S</span><span class="special">,</span> 
                         <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> 
                         <span class="identifier">trace</span> <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
              <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> 
              <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-      <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/parse_idm22520.html" title="Function template parse"><span class="identifier">parse</span></a><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> 
+      <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/parse_idm22847.html" title="Function template parse"><span class="identifier">parse</span></a><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> 
                  <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> 
                  <span class="identifier">trace</span> <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
              <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attr<span class="special">,</span> 
              <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_iter_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span> <span class="special">&amp;&amp;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_equality_comparable_with_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-      <span class="keyword">bool</span> <a class="link" href="../../../boost/parser/prefix_parse_idm22547.html" title="Function template prefix_parse"><span class="identifier">prefix_parse</span></a><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">S</span><span class="special">,</span> 
+      <span class="keyword">bool</span> <a class="link" href="../../../boost/parser/prefix_parse_idm22874.html" title="Function template prefix_parse"><span class="identifier">prefix_parse</span></a><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">S</span><span class="special">,</span> 
                         <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> 
                         <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Attr</span> <span class="special">&amp;</span><span class="special">,</span> 
                         <span class="identifier">trace</span> <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
              <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Attr<span class="special">,</span> 
              <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-      <span class="keyword">bool</span> <a class="link" href="../../../boost/parser/parse_idm22583.html" title="Function template parse"><span class="identifier">parse</span></a><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> 
+      <span class="keyword">bool</span> <a class="link" href="../../../boost/parser/parse_idm22910.html" title="Function template parse"><span class="identifier">parse</span></a><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> 
                  <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> 
                  <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Attr</span> <span class="special">&amp;</span><span class="special">,</span> 
                  <span class="identifier">trace</span> <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
              <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> 
              <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_iter_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span> <span class="special">&amp;&amp;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_equality_comparable_with_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-      <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/prefix_parse_idm22617.html" title="Function template prefix_parse"><span class="identifier">prefix_parse</span></a><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">S</span><span class="special">,</span> 
+      <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/prefix_parse_idm22944.html" title="Function template prefix_parse"><span class="identifier">prefix_parse</span></a><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">S</span><span class="special">,</span> 
                         <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> 
                         <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> 
                         <span class="identifier">trace</span> <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
              <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> 
              <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-      <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/parse_idm22651.html" title="Function template parse"><span class="identifier">parse</span></a><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> 
+      <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/parse_idm22978.html" title="Function template parse"><span class="identifier">parse</span></a><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> 
                  <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> 
                  <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">trace</span> <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
              <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> Callbacks<span class="special">,</span> 
              <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_iter_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span> <span class="special">&amp;&amp;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_equality_comparable_with_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-      <span class="keyword">bool</span> <a class="link" href="../../../boost/parser/callback_prefix_p_idm22683.html" title="Function template callback_prefix_parse"><span class="identifier">callback_prefix_parse</span></a><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">S</span><span class="special">,</span> 
+      <span class="keyword">bool</span> <a class="link" href="../../../boost/parser/callback_prefix_p_idm23010.html" title="Function template callback_prefix_parse"><span class="identifier">callback_prefix_parse</span></a><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">S</span><span class="special">,</span> 
                                  <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> 
                                  <span class="identifier">Callbacks</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">trace</span> <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
              <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> Callbacks<span class="special">,</span> 
              <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-      <span class="keyword">bool</span> <a class="link" href="../../../boost/parser/callback_parse_idm22722.html" title="Function template callback_parse"><span class="identifier">callback_parse</span></a><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> 
+      <span class="keyword">bool</span> <a class="link" href="../../../boost/parser/callback_parse_idm23049.html" title="Function template callback_parse"><span class="identifier">callback_parse</span></a><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> 
                           <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> 
                           <span class="identifier">Callbacks</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">trace</span> <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> I<span class="special">,</span> <span class="keyword">typename</span> S<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
              <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Callbacks<span class="special">,</span> 
              <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_iter_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">&gt;</span> <span class="special">&amp;&amp;</span>            <span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_equality_comparable_with_v</span><span class="special">&lt;</span><span class="identifier">I</span><span class="special">,</span> <span class="identifier">S</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-      <span class="keyword">bool</span> <a class="link" href="../../../boost/parser/callback_prefix_p_idm22759.html" title="Function template callback_prefix_parse"><span class="identifier">callback_prefix_parse</span></a><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">S</span><span class="special">,</span> 
+      <span class="keyword">bool</span> <a class="link" href="../../../boost/parser/callback_prefix_p_idm23086.html" title="Function template callback_prefix_parse"><span class="identifier">callback_prefix_parse</span></a><span class="special">(</span><span class="identifier">I</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">S</span><span class="special">,</span> 
                                  <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> 
                                  <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> 
                                  <span class="identifier">Callbacks</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">trace</span> <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span>
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> R<span class="special">,</span> <span class="keyword">typename</span> Parser<span class="special">,</span> <span class="keyword">typename</span> GlobalState<span class="special">,</span> 
              <span class="keyword">typename</span> ErrorHandler<span class="special">,</span> <span class="keyword">typename</span> SkipParser<span class="special">,</span> <span class="keyword">typename</span> Callbacks<span class="special">,</span> 
              <span class="keyword">typename</span> Enable <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if_t</span><span class="special">&lt;</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">is_parsable_range_like_v</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;&gt;</span> <span class="special">&gt;</span> 
-      <span class="keyword">bool</span> <a class="link" href="../../../boost/parser/callback_parse_idm22803.html" title="Function template callback_parse"><span class="identifier">callback_parse</span></a><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> 
+      <span class="keyword">bool</span> <a class="link" href="../../../boost/parser/callback_parse_idm23130.html" title="Function template callback_parse"><span class="identifier">callback_parse</span></a><span class="special">(</span><span class="identifier">R</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> 
                           <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">Parser</span><span class="special">,</span> <span class="identifier">GlobalState</span><span class="special">,</span> <span class="identifier">ErrorHandler</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> 
                           <a class="link" href="../../../boost/parser/parser_interface.html" title="Struct template parser_interface">parser_interface</a><span class="special">&lt;</span> <span class="identifier">SkipParser</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> 
                           <span class="identifier">Callbacks</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">trace</span> <span class="special">=</span> <span class="identifier">trace</span><span class="special">::</span><span class="identifier">off</span><span class="special">)</span><span class="special">;</span>
@@ -276,18 +279,18 @@
       <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="../../../boost/parser/ascii/upper.html" title="Global upper">upper</a><span class="special">;</span>
     <span class="special">}</span>
     <span class="keyword">namespace</span> <span class="identifier">literals</span> <span class="special">{</span>
-      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/literals/operator_l_idm21551.html" title='Function operator""_l'><span class="keyword">operator</span><span class="string">""</span><span class="identifier">_l</span></a><span class="special">(</span><span class="keyword">char</span><span class="special">)</span><span class="special">;</span>
-      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/literals/operator_l_idm21558.html" title='Function operator""_l'><span class="keyword">operator</span><span class="string">""</span><span class="identifier">_l</span></a><span class="special">(</span><span class="identifier">char8_t</span><span class="special">)</span><span class="special">;</span>
-      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/literals/operator_l_idm21565.html" title='Function operator""_l'><span class="keyword">operator</span><span class="string">""</span><span class="identifier">_l</span></a><span class="special">(</span><span class="keyword">char32_t</span><span class="special">)</span><span class="special">;</span>
-      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/literals/operator_l_idm21572.html" title='Function operator""_l'><span class="keyword">operator</span><span class="string">""</span><span class="identifier">_l</span></a><span class="special">(</span><span class="keyword">char</span> <span class="keyword">const</span> <span class="special">*</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span><span class="special">)</span><span class="special">;</span>
-      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/literals/operator_l_idm21581.html" title='Function operator""_l'><span class="keyword">operator</span><span class="string">""</span><span class="identifier">_l</span></a><span class="special">(</span><span class="identifier">char8_t</span> <span class="keyword">const</span> <span class="special">*</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span><span class="special">)</span><span class="special">;</span>
-      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/literals/operator_l_idm21590.html" title='Function operator""_l'><span class="keyword">operator</span><span class="string">""</span><span class="identifier">_l</span></a><span class="special">(</span><span class="keyword">char32_t</span> <span class="keyword">const</span> <span class="special">*</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span><span class="special">)</span><span class="special">;</span>
-      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/literals/operator_p_idm21599.html" title='Function operator""_p'><span class="keyword">operator</span><span class="string">""</span><span class="identifier">_p</span></a><span class="special">(</span><span class="keyword">char</span><span class="special">)</span><span class="special">;</span>
-      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/literals/operator_p_idm21606.html" title='Function operator""_p'><span class="keyword">operator</span><span class="string">""</span><span class="identifier">_p</span></a><span class="special">(</span><span class="identifier">char8_t</span><span class="special">)</span><span class="special">;</span>
-      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/literals/operator_p_idm21613.html" title='Function operator""_p'><span class="keyword">operator</span><span class="string">""</span><span class="identifier">_p</span></a><span class="special">(</span><span class="keyword">char32_t</span><span class="special">)</span><span class="special">;</span>
-      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/literals/operator_p_idm21620.html" title='Function operator""_p'><span class="keyword">operator</span><span class="string">""</span><span class="identifier">_p</span></a><span class="special">(</span><span class="keyword">char</span> <span class="keyword">const</span> <span class="special">*</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span><span class="special">)</span><span class="special">;</span>
-      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/literals/operator_p_idm21629.html" title='Function operator""_p'><span class="keyword">operator</span><span class="string">""</span><span class="identifier">_p</span></a><span class="special">(</span><span class="identifier">char8_t</span> <span class="keyword">const</span> <span class="special">*</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span><span class="special">)</span><span class="special">;</span>
-      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/literals/operator_p_idm21638.html" title='Function operator""_p'><span class="keyword">operator</span><span class="string">""</span><span class="identifier">_p</span></a><span class="special">(</span><span class="keyword">char32_t</span> <span class="keyword">const</span> <span class="special">*</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span><span class="special">)</span><span class="special">;</span>
+      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/literals/operator_l_idm21852.html" title='Function operator""_l'><span class="keyword">operator</span><span class="string">""</span><span class="identifier">_l</span></a><span class="special">(</span><span class="keyword">char</span><span class="special">)</span><span class="special">;</span>
+      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/literals/operator_l_idm21859.html" title='Function operator""_l'><span class="keyword">operator</span><span class="string">""</span><span class="identifier">_l</span></a><span class="special">(</span><span class="identifier">char8_t</span><span class="special">)</span><span class="special">;</span>
+      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/literals/operator_l_idm21866.html" title='Function operator""_l'><span class="keyword">operator</span><span class="string">""</span><span class="identifier">_l</span></a><span class="special">(</span><span class="keyword">char32_t</span><span class="special">)</span><span class="special">;</span>
+      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/literals/operator_l_idm21873.html" title='Function operator""_l'><span class="keyword">operator</span><span class="string">""</span><span class="identifier">_l</span></a><span class="special">(</span><span class="keyword">char</span> <span class="keyword">const</span> <span class="special">*</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span><span class="special">)</span><span class="special">;</span>
+      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/literals/operator_l_idm21882.html" title='Function operator""_l'><span class="keyword">operator</span><span class="string">""</span><span class="identifier">_l</span></a><span class="special">(</span><span class="identifier">char8_t</span> <span class="keyword">const</span> <span class="special">*</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span><span class="special">)</span><span class="special">;</span>
+      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/literals/operator_l_idm21891.html" title='Function operator""_l'><span class="keyword">operator</span><span class="string">""</span><span class="identifier">_l</span></a><span class="special">(</span><span class="keyword">char32_t</span> <span class="keyword">const</span> <span class="special">*</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span><span class="special">)</span><span class="special">;</span>
+      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/literals/operator_p_idm21900.html" title='Function operator""_p'><span class="keyword">operator</span><span class="string">""</span><span class="identifier">_p</span></a><span class="special">(</span><span class="keyword">char</span><span class="special">)</span><span class="special">;</span>
+      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/literals/operator_p_idm21907.html" title='Function operator""_p'><span class="keyword">operator</span><span class="string">""</span><span class="identifier">_p</span></a><span class="special">(</span><span class="identifier">char8_t</span><span class="special">)</span><span class="special">;</span>
+      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/literals/operator_p_idm21914.html" title='Function operator""_p'><span class="keyword">operator</span><span class="string">""</span><span class="identifier">_p</span></a><span class="special">(</span><span class="keyword">char32_t</span><span class="special">)</span><span class="special">;</span>
+      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/literals/operator_p_idm21921.html" title='Function operator""_p'><span class="keyword">operator</span><span class="string">""</span><span class="identifier">_p</span></a><span class="special">(</span><span class="keyword">char</span> <span class="keyword">const</span> <span class="special">*</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span><span class="special">)</span><span class="special">;</span>
+      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/literals/operator_p_idm21930.html" title='Function operator""_p'><span class="keyword">operator</span><span class="string">""</span><span class="identifier">_p</span></a><span class="special">(</span><span class="identifier">char8_t</span> <span class="keyword">const</span> <span class="special">*</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span><span class="special">)</span><span class="special">;</span>
+      <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/literals/operator_p_idm21939.html" title='Function operator""_p'><span class="keyword">operator</span><span class="string">""</span><span class="identifier">_p</span></a><span class="special">(</span><span class="keyword">char32_t</span> <span class="keyword">const</span> <span class="special">*</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span><span class="special">)</span><span class="special">;</span>
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   <span class="special">}</span>
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+<a accesskey="p" href="../../../boost/parser/write_formatted_e_idm18904.html"><img src="../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../../reference.html"><img src="../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../images/home.png" alt="Home"></a><a accesskey="n" href="../../../boost/parser/ascii/alnum.html"><img src="../../../images/next.png" alt="Next"></a>
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index c2a99999..95280219 100644
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+<link rel="prev" href="../../../boost/parser/report_warning_idm23224.html" title="Function template _report_warning">
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+<a accesskey="p" href="../../../boost/parser/report_warning_idm23224.html"><img src="../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../../reference.html"><img src="../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../images/home.png" alt="Home"></a><a accesskey="n" href="../../../boost/parser/subrange.html"><img src="../../../images/next.png" alt="Next"></a>
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+<a accesskey="p" href="../../../boost/parser/report_warning_idm23224.html"><img src="../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../../reference.html"><img src="../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../images/home.png" alt="Home"></a><a accesskey="n" href="../../../boost/parser/subrange.html"><img src="../../../images/next.png" alt="Next"></a>
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diff --git a/doc/html/header/boost/parser/tuple_hpp.html b/doc/html/header/boost/parser/tuple_hpp.html
index c693ab90..470cbe18 100644
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@@ -7,12 +7,12 @@
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-<link rel="next" href="../../../boost/parser/literals/operator_c_idm23038.html" title='Function template operator""_c'>
+<link rel="next" href="../../../boost/parser/literals/operator_c_idm23370.html" title='Function template operator""_c'>
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-<a accesskey="p" href="../../../boost/parser/as_utf32.html"><img src="../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../../reference.html"><img src="../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../images/home.png" alt="Home"></a><a accesskey="n" href="../../../boost/parser/literals/operator_c_idm23038.html"><img src="../../../images/next.png" alt="Next"></a>
+<a accesskey="p" href="../../../boost/parser/as_utf32.html"><img src="../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../../reference.html"><img src="../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../images/home.png" alt="Home"></a><a accesskey="n" href="../../../boost/parser/literals/operator_c_idm23370.html"><img src="../../../images/next.png" alt="Next"></a>
 </div>
 <div class="section">
 <div class="titlepage"><div><div><h3 class="title">
@@ -25,7 +25,7 @@
     <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> U<span class="special">,</span> <span class="identifier">U</span> I<span class="special">&gt;</span> 
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-      <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">char</span><span class="special">...</span> chars<span class="special">&gt;</span> <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/literals/operator_c_idm23038.html" title='Function template operator""_c'><span class="keyword">operator</span><span class="string">""</span><span class="identifier">_c</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
+      <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">char</span><span class="special">...</span> chars<span class="special">&gt;</span> <span class="keyword">constexpr</span> <span class="keyword">auto</span> <a class="link" href="../../../boost/parser/literals/operator_c_idm23370.html" title='Function template operator""_c'><span class="keyword">operator</span><span class="string">""</span><span class="identifier">_c</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
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+<a accesskey="p" href="../../../boost/parser/as_utf32.html"><img src="../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../../reference.html"><img src="../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../images/home.png" alt="Home"></a><a accesskey="n" href="../../../boost/parser/literals/operator_c_idm23370.html"><img src="../../../images/next.png" alt="Next"></a>
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diff --git a/doc/html/standalone_HTML.manifest b/doc/html/standalone_HTML.manifest
index 081ee337..fd35f83d 100644
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+boost/parser/enable_optional.html
+boost/parser/report_error_idm23209.html
+boost/parser/report_warning_idm23224.html
 header/boost/parser/subrange_hpp.html
 boost/parser/subrange.html
 boost/parser/make_subrange.html
@@ -223,7 +226,7 @@ boost/parser/as_utf8.html
 boost/parser/as_utf16.html
 boost/parser/as_utf32.html
 header/boost/parser/tuple_hpp.html
-boost/parser/literals/operator_c_idm23038.html
+boost/parser/literals/operator_c_idm23370.html
 boost/parser/tuple.html
 boost/parser/integral_constant.html
 boost/parser/llong.html