#426 strange behavior when table meets CJK character

[chenxu]

sometimes the last character always in a new line alone, like these:

tested on snapshot, seems width is not correct, 55% 45% is better

<table border="1" class="docutils">
<colgroup>
<col width="56%" />
<col width="44%" />
</colgroup>
<thead valign="bottom">
<tr><th class="head">返回值类型</th>
<th class="head">解释</th>
</tr>
</thead>
<tbody valign="top">
<tr><td>nil</td>
<td>无返回值</td>
</tr>
</tbody>
</table>

test:

python rst2html.py test.txt test.html

[Günter Milde]

Table column widths are determined from the rST input, the first table in
the example test.txt has column widths of 10 and 9 characters, the
second of 12 characters for both tables.
By default, these values are transformed to percentages
(53%, 47% and 50%, 50%) by the HTML writers.

The most easy fix is to add some padding in the source:

========== =========
返回值类型 解释
========== =========
nil        无返回值
========== =========

============ ============
戻り値の種類 説明
============ ============
nil          戻り値なし
============ ============

You can also specify relative column "widths" or the table "width" using the
table directive__ options.

In most cases, tables look better, when the column widths are determined by
the HTML browser. Therefore, the "widths" option supports the special value
auto. Auto-width columns can be made the default for all tables with the
value colwidths-auto for the table_style__ configuration setting.

The HTML5 writer will eventually make auto-width columns the default.

__ https://docutils.sourceforge.io/docs/ref/rst/directives.html#table

__ https://docutils.sourceforge.io/docs/user/config.html#table-style

[Günter Milde]

Fixed for HTML5 in revision 8836.
The abovementioned workarounds are still required with HTML4.
The default behaviour for HTML4 will not change to keep backwards compatibility.

Thank you for reporting.

[Günter Milde]

Fixed in Docutils 0.18.