adding a \show method for cell result, closes #254

src/converter/lx.jl

@@ -205,7 +205,7 @@ $(SIGNATURES)
 Internal function to read the content of a script file. See also [`resolve_lx_input`](@ref).
 """
 function resolve_lx_input_hlcode(rpath::AS, lang::AS)::String
-    fpath, _, _ = check_input_rpath(rpath; code=true)
+    fpath, = check_input_rpath(rpath; code=true)
     # Read the file while ignoring lines that are flagged with something like `# HIDE`
     _, comsym = CODE_LANG[lang]
     hide = Regex(raw"(?:^|[^\S\r\n]*?)#(\s)*?(?i)hide(all)?")
@@ -234,11 +234,7 @@ function resolve_lx_input_hlcode(rpath::AS, lang::AS)::String
     endswith(code, "\n") && (code = chop(code, tail=1))
     html = html_code(code, lang)
     if LOCAL_PAGE_VARS["showall"].first
-        fd, fn = splitdir(fpath)
-        res = read(joinpath(fd, "output", splitext(fn)[1] * ".res"), String)
-        if !isempty(res)
-            html *= html_div("code_output", html_code(res))
-        end
+        html *= show_res(rpath)
     end
     return html
 end
@@ -251,11 +247,24 @@ Internal function to read the content of a script file and highlight it using `h
 also [`resolve_lx_input`](@ref).
 """
 function resolve_lx_input_othercode(rpath::AS, lang::AS)::String
-    fpath, _, _ = check_input_rpath(rpath, code=true)
+    fpath, = check_input_rpath(rpath, code=true)
     return html_code(read(fpath, String), lang)
 end
 
 
+"""
+$SIGNATURES
+
+Internal function to read a result file and show it.
+"""
+function show_res(rpath::AS)::String
+    fpath, = check_input_rpath(rpath; code=true)
+    fd, fn = splitdir(fpath)
+    res    = read(joinpath(fd, "output", splitext(fn)[1] * ".res"), String)
+    isempty(res) && return ""
+    return html_div("code_output", html_code(res))
+end
+
 """
 $(SIGNATURES)
 

src/converter/lx_simple.jl

@@ -13,6 +13,19 @@ function resolve_lx_output(lxc::LxCom; reprocess::Bool=false)::String
 end
 
 
+"""
+$SIGNATURES
+
+Internal function to resolve a `\\show{rpath}` (finds the result of a code block and shows it).
+No reprocess for this.
+"""
+function resolve_lx_show(lxc::LxCom; reprocess::Bool=false)::String
+    rpath = strip(content(lxc.braces[1]))
+    show_res(rpath)
+end
+
+
+
 """
 $SIGNATURES
 
@@ -179,6 +192,7 @@ const LXCOM_SIMPLE = LittleDict{String, Function}(
     "\\figalt" => resolve_lx_figalt,  # include a figure (may or may not have been generated)
     "\\file"   => resolve_lx_file,    # include a file
     "\\tableinput" => resolve_lx_tableinput,    # include table from a csv file
+    "\\show"   => resolve_lx_show,    # show result of a code block
     )
 
 

src/jd_vars.jl

@@ -236,6 +236,7 @@ the site. See [`resolve_lxcom`](@ref).
     GLOBAL_LXDEFS["\\codeoutput"] = LxDef("\\codeoutput", 1, subs("@@code_output \\output{#1}@@"))
     GLOBAL_LXDEFS["\\textoutput"] = LxDef("\\textoutput", 1, EMPTY_SS)
     GLOBAL_LXDEFS["\\textinput"]  = LxDef("\\textinput",  1, EMPTY_SS)
+    GLOBAL_LXDEFS["\\show"]       = LxDef("\\show",       1, EMPTY_SS)
     GLOBAL_LXDEFS["\\figalt"]     = LxDef("\\figalt",     2, EMPTY_SS)
     GLOBAL_LXDEFS["\\fig"]        = LxDef("\\fig",        1, subs("\\figalt{}{#1}"))
     GLOBAL_LXDEFS["\\file"]       = LxDef("\\file",       2, subs("[#1]()"))

test/converter/eval.jl

@@ -207,3 +207,20 @@ end
             </code></pre></p>
             """)
 end
+
+
+@testset "show" begin
+    h = raw"""
+        @def hascode = true
+        ```julia:ex
+        a = 5
+        a *= 2
+        ```
+        \show{ex}
+        """ |> jd2html_td
+    @test isapproxstr(h, """
+        <pre><code class="language-julia">a = 5
+        a *= 2</code></pre>
+        <div class="code_output"><pre><code>10</code></pre></div>
+        """)
+end

test/runtests.jl

@@ -34,9 +34,10 @@ println("🍺")
 println("CONVERTER/HTML")
 include("converter/html.jl")
 println("🍺")
-
-println("CONVERTER/LX")
+println("CONVERTER/EVAL")
 include("converter/eval.jl")
+println("🍺")
+println("CONVERTER/LX")
 include("converter/lx_input.jl")
 include("converter/lx_simple.jl")
 println("🍺")