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

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.

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.

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


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