Thank you for your suggestion as well, Bastien. I'll keep a note of what 
you said for reference.

On Thursday, June 2, 2022 at 10:44:14 AM UTC+2 Bastien Dumont wrote:

> Oh yes, you're right, sorry!
>
> Le Thursday 02 June 2022 à 08:35:22AM, denis...-NSENcxR/0n0@public.gmane.org a écrit :
> > Or, maybe even a RawBlock? Like in that function:
> > local function latex(s)
> > return pandoc.RawBlock('latex', s)
> > end
> > 
> > 
> > > -----Ursprüngliche Nachricht-----
> > > Von: pandoc-...-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org <pandoc-
> > > dis...-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org> Im Auftrag von Bastien DUMONT
> > > Gesendet: Donnerstag, 2. Juni 2022 10:34
> > > An: pandoc-...-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
> > > Betreff: Re: How to make my latex environment accessible from markdown
> > > via short-code?
> > > 
> > > To complement Denis' answer, your Markdown chunks in "hint.lua" are
> > > handled like strings because you created them as Str objects. What you 
> want
> > > is to return a CodeBlock (https://pandoc.org/lua-
> > > filters.html#pandoc.codeblock), e.g. `pandoc.CodeBlock("latex",
> > > "\\begin{guidehint}")`.
> > > 
> > > More generally, Pandoc has already parsed the input file when it 
> applies
> > > filters. Filters manipulate objects in the internal representation of 
> the
> > > document and should return such objects. In exceptional cases where you
> > > really need to parse a Markdown string inside a filter, use 
> pandoc.read.
> > > 
> > > Le Thursday 02 June 2022 à 01:17:44AM, Stefan Schroeder a écrit :
> > > > I am converting markdown to pdf via latex using my own template.
> > > > In the template I have defined a new environment called 'hint' that 
> is
> > > > like a call-out.
> > > >
> > > > This works:
> > > > ---
> > > > ```{=latex}
> > > > \begin{hint}
> > > > ```
> > > > Lorem ipsum dolor sit amet,
> > > > ```{=latex}
> > > > \end{hint}
> > > > ```
> > > > ---
> > > > The Lorem text appears in the callout-environment.
> > > >
> > > > I want to make the environment accessible more conveniently via a 
> short-
> > > code.
> > > >
> > > > I have created a new lua-filter, 'hint.lua' that I successfully 
> include:
> > > > return {
> > > > {
> > > > Str = function (elem)
> > > > if elem.text == "{{hint_end}}" then
> > > > return pandoc.Str("```{=latex}\n\\end{guidehint}\n```\n")
> > > > elseif elem.text == "{{hint_begin}}" then
> > > > return pandoc.Str "```{=latex}\\begin{guidehint}```"
> > > > else
> > > > return elem
> > > > end
> > > > end,
> > > > }
> > > > }
> > > >
> > > > But when I use it, the macro-text will be included literally:
> > > >
> > > > {{hint_begin}}
> > > > Neque porro quisquam est,
> > > > {{hint_end}}
> > > >
> > > > The code is not interpreted to end up being proper Latex, but it's
> > > > escaped somehow to become a string literal.
> > > > Thus my output looks like this:
> > > >
> > > > “‘{=latex}\begin{hint}“‘ Neque porro quisquam est, qui dolorem ipsum,
> > > > quia dolor sit, amet, consectetur, adipisci velit “‘{=latex}
> > > > \end{hint} “‘
> > > >
> > > > How do I make the short-code to get access to my own environments?
> > > >
> > > > PS. If there are different apporaches, that'll be nice as well.
> > > >
> > > > Thanks
> > > > Stefan
> > > >
> > > >
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> > > >
> > > > References:
> > > >
> > > > [1] mailto:pandoc-discus...-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
> > > > [2]
> > > > https://groups.google.com/d/msgid/pandoc-discuss/4de0a599-a196-
> > > 438a-92
> > > > 8c-
> > > b0895b35afb6n%40googlegroups.com?utm_medium=email&utm_source=fo
> > > oter
> > > 
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