Improve parsing malformed tables
Layout should not crash when processing malformed table layouts.
Lost <td>
elements should get wrapped in anonymous rows. Other elements and texts should be placed before the table.
<table>
<tr>
<td>Jacob</td>
<td>Siefer</td>
<td>30</td>
</tr>
<tr>
<!-- Pull out and place before table -->
Some content
</tr>
<!-- Wrap in anonymous tr -->
<td>test</td>
<tr>
<!-- Pull out and place before table -->
Marry
<td>Faith</td>
<!-- Pull out and place before table -->
39
</tr>
</table>
Invalid row-/col-span should create missing columns or be ignored when in conflict with other spans.
<table>
<tr>
<td>Joe</td>
<td rowspan="2">Nash</td>
<td>30</td>
</tr>
<tr>
<td>John</td>
<td rowspan="2">Smith</td>
<td>35</td>
</tr>
<tr>
<td>Marry</td>
<td>Faith</td>
<td>39</td>
</tr>
<tr>
<td>Bob</td>
<td rowspan="2">Buckland</td>
<td>39</td>
</tr>
<tr>
<td colspan="3">Rachel</td>
<td>39</td>
</tr>
<tr>
<td>End</td>
</tr>
</table>