Re: [Docutils-users] Class parameter is not effective in code directive (rst2latex)

Le 2017-04-19 09:36, Sébastien Dailly a écrit :
> Hello,
> 
> I'm stuck with rst2latex : I want to customize the code-block rendering
> with a dark background. rst2latex translate this directive to a quote
> environnment which I can't override because it is already used 
> elsewhere
> in the document.
> 
> I've tried to add a class parameter to the directive
> 
>> 
>>   .. code-block:: C
>>     :class: darkBackground
>> 
>>     // Comment
>> 
> 
> But this does not seems to work (the class parameter is discarded)
> 
>> \begin{quote}
>> {\ttfamily \raggedright \noindent
>> \DUrole{comment}{\DUrole{single}{//~Comment\\
>> }}~\\
> 
> I've also tried to wrap the code directive inside a class one :
> 
>> .. class:: darkBackground
>> 
>>   .. code-block:: C
>> 
>>     // Comment
> 
> But this does not give the expected result.
> 
> This seems to be a problem with the writer, because rst2html gives the
> class in the output :
> 
>> <pre class="code C darkBackground literal-block">
>>  <span class="comment single">// Comment
> 
> Is this a known bug ? Is there a workaround for this ?
> 
> Thanks a lot !


I've found a solution by editing the writer :

> $ diff -c5 __init__.py /cygdrive/t/__init__.py
> *** __init__.py 2017-04-19 10:33:56.977196800 +0200
> --- /cygdrive/t/__init__.py     2017-04-19 10:33:51.485961600 +0200
> ***************
> *** 2450,2459 ****
> --- 2450,2461 ----
>                       'lstlisting': r'\usepackage{listings}',
>                       'Verbatim': r'\usepackage{fancyvrb}',
>                       # 'verbatim': '',
>                       'verbatimtab': r'\usepackage{moreverb}'}
> 
> +         if node['classes']:
> +             self.visit_inline(node)
>           if node.get('ids'):
>               self.out += ['\n'] + self.ids_to_labels(node)
> 
>           if not self.active_table.is_open():
>               # no quote inside tables, to avoid vertical space between
> ***************
> *** 2493,2502 ****
> --- 2495,2506 ----
>           self.literal = False
>           self.verbatim = False
>           self.alltt = False
>           self.out.append(self.context.pop())
>           self.out.append(self.context.pop())
> +         if node['classes']:
> +             self.depart_inline(node)
> 
>       ## def visit_meta(self, node):
>       ##     self.out.append('[visit_meta]\n')
>           # TODO: set keywords for pdf?
>           # But:

It seems to be a bug in the writer (I'm ccing docutils-develop). I have 
no idea if this change can break other construction… Can you check if 
this change can be integrated in the project ?

Thanks !

-- 
Sébastien

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