DOCX Reader to support DOCX table custom style

[rgaiacs]

Microsoft Word allows user to define custom style for tables.

Would be great if the DOCX reader would support table custom style as it support paragraph custom style.

Minimal Working Example

mwe-table-custom-style.docx

XML structure

<w:tbl>
  <w:tblPr>
    <w:tblStyle w:val="Example"/>
    <w:tblW w:w="0" w:type="auto"/>
    <w:tblLook w:val="0620" w:firstRow="1" w:lastRow="0" w:firstColumn="0" w:lastColumn="0" w:noHBand="1" w:noVBand="1"/>
  </w:tblPr>
  ...
</w:tbl>

DOCX reader would have to read the value of w:val in <w:tblStyle /> that is a child of <w:tblPr> which is a child of <w:tbl>.

Expected Output

<table> has attribute data-custom-style. For example, pandoc --from docx+styles --to html mwe-table-custom-style.docx would return

<table data-custom-style="Example">
<colgroup>
<col style="width: 50%" />
<col style="width: 50%" />
</colgroup>
<thead>
<tr class="header">
<th>A</th>
<th>B</th>
</tr>
</thead>
<tbody>
<tr class="odd">
<td>1</td>
<td>2</td>
</tr>
</tbody>
</table>

Observed Output

pandoc --version returns

pandoc 3.1.11.1
Features: +server +lua
Scripting engine: Lua 5.4
User data directory: /home/raniere/.local/share/pandoc
Copyright (C) 2006-2023 John MacFarlane. Web: https://pandoc.org
This is free software; see the source for copying conditions. There is no
warranty, not even for merchantability or fitness for a particular purpose.

<table> is missing the attribute data-custom-style. For example, pandoc --from docx+styles --to html mwe-table-custom-style.docx returns

<table>
<colgroup>
<col style="width: 50%" />
<col style="width: 50%" />
</colgroup>
<thead>
<tr class="header">
<th>A</th>
<th>B</th>
</tr>
</thead>
<tbody>
<tr class="odd">
<td>1</td>
<td>2</td>
</tr>
</tbody>
</table>

[agusmba]

Some other similar issues: #7549, #6496 (should probably be closed), #4697 (old with further references)