RST Reader does not check the :class: field for custom roles

[willj-dev]

Explain the problem.

The relevant RST documentation is under the role directive:

The following option is recognized by the "role" directive for most base roles:

class : text
Set the "classes" attribute value on the element produced (inline, or element associated with a base class) when the custom interpreted text role is used. If no directive options are specified, a "class" option with the directive argument (role name) as the value is implied. See the class directive above.

As shown in the example below, Pandoc 2.16.1 always uses the role name for the element class, and always ignores the :class: field in a custom role.

Example RST:

.. role: classy
  :class: myclass

:classy:`hello`

Pandoc command: pandoc -f rst -t html5 -o test.html test.rst

Output HTML5:

<p><span class="classy">hello</span></p>

Expected output:

<p><span class="myclass">hello</span></p>

Pandoc version?
2.16.1, Windows

[willj-dev]

I will have a PR for this imminently!