Double captions in RST->MD table.

[levitvas]

Hey, not sure if this is some bug, but I always get two captions when converting a table from RST to MD:

.. table:: Test Table

   ================================== ==== === ======
   Function                           1    2   three
   ================================== ==== === ======
   test1                                   2
   tes2                               yes      yes
   test3                              yes
   ================================== ==== === ======

Results in this in MD:

::: {#part5_tab_1}
<table>
<caption>Test Table</caption>
<thead>
<tr class="header">
<th>Function</th>
<th>1</th>
<th>2</th>
<th>three</th>
</tr>
</thead>
<tbody>
<tr class="odd">
<td><p>test1 tes2 test3</p></td>
<td><p>yes yes</p></td>
<td><p>2</p></td>
<td><p>yes</p></td>
</tr>
</tbody>
</table>

: Test Table
:::

As you can see the caption is being doubled.
As a side note, the table returned in MD is completely wrong, but that would be a bug I assume:

Test Table

Function	1	2	three
test1 tes2 test3	yes yes	2	yes

[jgm]

Two separate issues here:

markdown writer: doubled caption

In the markdown writer, we fall back to HTML when tables can't be represented in native markdown. Now, I'm not sure why that is happening here, because this table can be represented in native markdown, and when I run the latest version of pandoc -f rst -t markdown, I get

  Function           1         2   three
  ------------------ --------- --- -------
  test1 tes2 test3   yes yes   2   yes

  : Test Table

Maybe you're using an older version? However, I can reproduce the doubled caption if I used a more complex table. E.g.

% pandoc -f rst -t markdown-grid_tables
.. table:: My table

   +------------------------+------------+----------+----------+
   | Header row, column 1   | Header 2   | Header 3 | Header 4 |
   | (header rows optional) |            |          |          |
   +========================+============+==========+==========+
   | body row 1, column 1   | column 2   | column 3 | column 4 |
   +------------------------+------------+----------+----------+
   | body row 2             | Cells may span columns.          |
   +------------------------+------------+---------------------+
   | body row 3             | Cells may  | - Table cells       |
   +------------------------+ span rows. | - contain           |
   | body row 4             |            | - body elements.    |
   +------------------------+------------+---------------------+
^D
<table style="width:83%;">
<caption>My table</caption>
<colgroup>
<col style="width: 34%" />
<col style="width: 18%" />
<col style="width: 15%" />
<col style="width: 15%" />
</colgroup>
<thead>
<tr>
<th>Header row, column 1 (header rows optional)</th>
<th>Header 2</th>
<th>Header 3</th>
<th>Header 4</th>
</tr>
</thead>
<tbody>
<tr>
<td>body row 1, column 1</td>
<td>column 2</td>
<td>column 3</td>
<td>column 4</td>
</tr>
<tr>
<td>body row 2</td>
<td colspan="3">Cells may span columns.</td>
</tr>
<tr>
<td>body row 3</td>
<td rowspan="2">Cells may span rows.</td>
<td colspan="2" rowspan="2"><ul>
<li>Table cells</li>
<li>contain</li>
<li>body elements.</li>
</ul></td>
</tr>
<tr>
<td>body row 4</td>
</tr>
</tbody>
</table>

: My table

This issue should be simple to fix; we just need to make sure we omit the caption when falling back to HTML for a table.

RST reader: incorrect table parsing

I don't know why this table is parsed incorrectly, but that's an RST reader issue and will need to be fixed there.

[jgm]

If you'd like to create two issues for these, that would be great!

[levitvas]

Will do so!