# Re: [xwiki-devs] [Brainstorming] LaTeX Renderer - Styling

haha seems there’s some option to use “.sty” files for styling in LaTeX! :)
* https://tex.stackexchange.com/questions/91167/why-use-sty-files

What I understand so far, is that we would redefine commands in the .sty file
and then use those commands in the generated tex output.

For example instead of directly outputing "\begin{tabular}{l|ll}” for a table,
we would create own own and output "\begin{xwiki}{l|ll}”, with the definition
of it in a .sty file, with some default styles applied. This would then allow
modifying just the .sty file to control the output.

Seems great and exactly what I need. Still digging.

Thanks
-Vincent

> On 15 Feb 2018, at 07:25, Vincent Massol <vinc...@massol.net> wrote:
>
> Hi Paul,
>
>> On 14 Feb 2018, at 23:14, Paul Libbrecht <p...@hoplahup.net> wrote:
>>
>> Hello Vincent,
>>
>> having some experience with TeX I would implement CSS with
>> macro-definitions… Every element start would be a call to a macro that would
>> check for rules that would apply to its element, including passing
>> parameters of their ancestry.
>
> Could you give an example of what you mean by macro-definitions? Is this
> something that exist in TeX?
>
>> However, I guess that your solution seems probably more ad hoc and more
>> practical.
>>
>> Is there any reason that you don’t use the XSL-FO renderer that use LaTeX? I
>> thought there were several of them.
>
> Do you have a pointer? As I said in my original mail I tried to search for an
> XHTML to LaTeX converter/XSLT but couldn’t. If you know of one, I’ll gladly
> have a look.
>
> Thanks a lot!
> -Vincent
>
>>
>> paul
>>
>> On 14 Feb 2018, at 21:01, Vincent Massol wrote:
>>
>>> Hi devs,
>>>
>>> I’m currently working on improving our TeX renderer (which is really a POC
>>> ATM), in an effort to see if it could be used to generate nice PDF exports
>>> (you generate LaTeX and then you convert to PDF).
>>>
>>> The main issue is that LaTeX doesn’t have any technology for applying style
>>> to it (like CSS has for HTML). In addition I wasn’t able to find any good
>>> HTML+CSS to TeX converter (as we have for PDFs with XSLT+FOP).
>>>
>>> So right now my idea is to implement some default behavior in the Tex
>>> Renderer (that could be configured globally in xwiki.properties and/or in
>>> the Admin UI) and give the ability to override specifically in the content.
>>>
>>> For example, imagine that you need to decide how to position table column
>>> content (left, centered, right) or whether the rows and/or columns of your
>>> table have vertical and horizontal lines (or other configs, autowrap, etc).
>>>
>>> The idea is that the Tex Renderer would support some custom tex-specific
>>> parameters. For example:
>>>
>>> (% tex-table-spec=“c | c | c" tex-table-floating="true"
>>> tex-table-caption="caption" %)
>>> |=A|=B
>>> (% tex-table-row-ending="\hline" %)|a|b
>>>
>>> (by default the table spec would be left aligned with vertical lines, and
>>> rows would be separated by horizontal lines).
>>>
>>> If you have some comments or ideas, please let me know.
>>>
>>> Inventing a CSS-like mechanism would just be too hard to implement IMO.
>>>
>>> Thanks
>>> -Vincent
>>>
>>> PS: If you want to see table options in LaTeX, see
>>> https://en.wikibooks.org/wiki/LaTeX/Tables
>