You need a filter, but it would be a simple one.

Something like

function latex(s)
  return pandoc.RawBlock('latex', s)
end

function Div(el)
  if el.classes[1] == 'solution' then
    return { latex('\begin{solution}'), el.content, latex('\end{solution}') }
  end
end

Chris Diaz <chris.diaz26-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:

> Hello,
>
> I'm looking for advice on how to produce HTML and LaTeX from Markdown using
> fenced divs (or something else) to apply custom styles to specific portions
> of the document.
>
> For example, I'm hoping to write something like this:
>
> ::: solution
> Solution text here.
> :::
>
> in order to produce this when HTML is the output (already works):
>
> <div class="solution">
> Solution text here.
> </div>
>
> and this when LaTeX/PDF is the output:
>
> \begin{solution}
> Solution text here.
> \end{solution}
>
> This idea comes from Bookdown's
> <https://bookdown.org/yihui/bookdown/custom-blocks.html> Custom Blocks
> feature, but I'm wondering if there's a way to do this with Pandoc, or if
> this would require a Lua filter.
>
> Thanks,
> Chris
>
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