Unknown node rowSpan

[ValentinConstantin]

Failed to build sphinx html with FlatTable using linuxdoc
raise NotImplementedError('Unknown node: ' + node.__class__.__name__)
NotImplementedError: Unknown node: rowSpan

#: ../../introduction.md:1
msgid "{rspan}1 TEST"
msgstr "{rspan}1 TEST"

The command that I use
python -m sphinx -T -E -b html -d _build/doctrees -D language=ru . _build/html

Update:

I used the same example as in the documentation, but the same problem

index.rst


Test
----

.. flat-table:: table title
   :widths: 2 1 1 3

   * - head col 1
     - head col 2
     - head col 3
     - head col 4

   * - column 1
     - field 1.1
     - field 1.2 with autospan

   * - column 2
     - field 2.1
     - :rspan:`1` :cspan:`1` field 2.2 - 3.3

   * .. _`last row`:

     - column 3

and locales/ru/LC_MESSAGES/index.po

#: ../../test/index.rst:18
msgid ":rspan:`1` :cspan:`1` field 2.2 - 3.3"
msgstr ":rspan:`1` :cspan:`1` test 2.2 - 3.3"

[return42]

Sorry, I have a problem to understand what the issue is / what you try to do. Why is there a markdown file named: #: ../../introduction.md:1? Can you please describe what you want and what you have tried / thanks!

[ValentinConstantin]

I have the following index.rst and into it exists introduction.

PRAIS4 Reporting Manual
=======================

.. toctree::
   :maxdepth: 2
   :caption: Contents:

   introduction
   SO1
   SO2
   SO3
   SO4
   SO5
   voluntary_targets_and_others
   implementationFramework
   annex_I
   annex_II

You can find the Introduction.md https://github.com/eaudeweb/Prais4-reporting-manual/blob/master/introduction.md also the repository https://github.com/eaudeweb/Prais4-reporting-manual

The problem is when I try to build HTML from PO-files. To be more clearly, I generated the PO-files using the following commands,

sphinx-build -b gettext . _build/gettext
sphinx-intl update -p _build/gettext -l es -l fr -l ar -l ru -l zh

completed the translation files locales/ru/LC_MESSAGES/introduction.po (which looks like)

#: ../../introduction.md:1
msgid "{rspan}`1` Indicator code"
msgstr "{rspan}`1` Код показателя"

#: ../../introduction.md:2
msgid "{rspan}`1` Indicator name"
msgstr "{rspan}`1` Наименование показателя"

#: ../../introduction.md:3
msgid "{rspan}`1` Metrics / proxies"
msgstr "{rspan}`1` Метрики / вспомогательные параметры"

#: ../../introduction.md:4
msgid "{rspan}`1` Adopted / proposed"
msgstr "{rspan}`1` Принято / предложено"

#: ../../introduction.md:5
msgid "{cspan}`1` Reporting attribution"
msgstr "{cspan}`1` Компетенция отчетности"

and when run the following command

python -m sphinx -T -E -b html -d _build/doctrees -D language=ru . _build/html

I get the error

raise NotImplementedError('Unknown node: ' + node.__class__.__name__)
NotImplementedError: Unknown node: rowSpan

[return42]

Hm, do you mix reST with Mardown markup?

The index.rst is valid reST markup and the introduction.md content has a Mardown markup.

You can't mix these markups into one. Except you are using any special sphinx extension I do not know. Even if you use a extension like myst-parser, the Markdown file can't include reST markup.

It may be that I misunderstand you, but I have the impression that you are trying to mix the different Markup wildly.

[melish]

Hi Markus, I am a colleague of Valentin and will try to explain this better. We are indeed using myst-parser, but without mixing in the same file reST and Markdown (it's possible via the eval-rst directive).
However, it's unrelated to the problem we are encountering, which has to do with internationalization.
Here is a simple example using reST: https://github.com/melish/linuxdoc_i18n.

index.rst contains one of the tables from the documentation and it works well when building the English version, but after adding the French translations and running:

make -e SPHINXOPTS="-D language='fr'" html

it fails with

Exception occurred:
  File "/home/andrei/edw/linuxdoc_i18n/.venv/lib/python3.9/site-packages/sphinx/writers/html5.py", line 801, in unknown_visit
    raise NotImplementedError('Unknown node: ' + node.__class__.__name__)
NotImplementedError: Unknown node: rowSpan

That's caused by the translation of the line containing :rspan:

If you try changing that line (either use an empty msgstr string or identical to msgid), the error doesn't occur anymore.

[return42]

will try to explain this better.

Ah, thanks a lot / my fail / sorry ..

Here is a simple example using reST: https://github.com/melish/linuxdoc_i18n.

Thanks for this example / I will give it a try the next days .. today and tomorrow I have no time for, so please be patient with me. ...

[melish]

No worries and thanks for reopening this issue. Your time is much appreciated.

[return42]

Right now I don't know why, but sphinx-build -M gettext generates PO files with reST Rules in the msgid::

#: ../index.rst:21
msgid ":rspan:`1` :cspan:`1` field 2.2 - 3.3"
msgstr ""

In the translated msgstr, these reST roles must not included:

#: ../index.rst:21
msgid ":rspan:`1` :cspan:`1` field 2.2 - 3.3"
msgstr "test (fr) field 2.2 - 3.3"

Here is a simple example using reST: https://github.com/melish/linuxdoc_i18n.

See my PR https://github.com/melish/linuxdoc_i18n/pull/1/files#r744734541

[melish]

Wow, I didn't think of trying that, thanks a lot for the tip!

[return42]

FYI: documentation about reST-roles is updated https://return42.github.io/linuxdoc/linuxdoc-howto/table-markup.html#flat-table