Re: YAML block to carry LaTeX font details -- how do I preserve '{' and ‘}‘ ?

["kurt.pfeifle via pandoc-discuss" <pandoc-discuss-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>]

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On Sunday, April 10, 2016 at 7:15:02 AM UTC+2, John MacFarlane wrote:

+++ John MacFarlane [Apr 09 16 19:39 ]: 
> >See BP Johnson's suggestions (recently in this list) about 
>
> BP Jonsson, I mean! 
>
Well — and in my OP I meant to say I started to *experiment* (not to 
*experience*)…     :-)

I'm referring to the technique of defining a macro like 
>
>     \newcommand{\wrap}[1]{#1} 
>
> and using it to wrap things that you don't want pandoc 
> interpreting as Markdown. 
>
At first I did not understand at all how I should apply this advice to my 
situation… However, thanks to this tipp and some more experimentation on my 
part, I found a solution. I’ll document it here in case someone else finds 
it useful too.
What I did first (cul-de-sac, not working!) 

I created a file named *wrapmarkdown.tex* with this content:

\makeatletter
  \newcommand{\wrapmarkdown}[1]{#1}-
\makeatother

and included it as a parameter into my Pandoc command: -H wrapmarkdown.tex.

Into my YAML block I put this modification:



mainfontoptions:   \wrapmarkdown{BoldFont=WeidemannStd-Bold.otf, ItalicFont=WeidemannBookItalic.otf, BoldItalicFont=WeidemannStd-BoldItalic.otf, ItalicFeatures={Colour=AA0001}, BoldFeatures={Colour=0000

This ended up with a LaTeX output containing this code around line 17:


    \setmainfont[\wrapmarkdown{BoldFont=WeidemannStd-Bold.otf,
       ItalicFont=WeidemannBookItalic.otf, BoldItalicFont=WeidemannStd-BoldItalic.otf,
       ItalicFeatures={Colour=AA0001}, BoldFeatures={Colour=0000AA},
       BoldItalicFeatures={Colour=AA00AA}}]{WeidemannBook}

and this code around line 107:

\makeatletter
  \newcommand{\wrapmarkdown}[1]{#1} 
\makeatother

When compiling this to PDF, an error occurred:

! Undefined control sequence.
<argument> ...st ,\l__fontspec_fontopts_clist ,\wrapmarkdown
{BoldFont=WeidemannStd-Bol...

...

What I did next (final solution) 

The error message made me move the snippet from around line 107 to lines 
2-4 of my generated LaTeX file. The output PDF was created successfully 
after this modification. 

Therefore I ditched the inclusion of my *wrapmarkdown.tex* file via the -H/
--include-in-header command line parameter.

Instead I hard-coded the respective lines into a custom LaTeX template, 
right after its initial lines, and added 
--template=my-custom-latex-template.latex into the command line.
Another question… 

I assume there is no way to make -H include a code snippet at a specific 
spot in the LaTeX header? The problem with my original approach seems to 
have been that on line 17 the call to the \wrapmarkdown newcommand came 
*before* its definition on line 107… and that the only workaround was the 
one I used: to hard-code it into the LaTeX-template at an earlier line?

Would it be feasible to add a variable-based approach into the default 
Pandoc template, which could be utilized from the command line for cases 
like this?
​

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