Re: Modify syntax-highlighted code blocks with lua filter

[John MacFarlane <jgm-TVLZxgkOlNX2fBVCVOL8/A@public.gmane.org>]

You can't do that from a filter, because highlighting is added
by the writer.

Bart <bart.hijmans-df9nrXIP1oRmR6Xm/wNWPw@public.gmane.org> writes:

> Greetings,
>
> I am working on an application that uses markdown and supports code blocks. 
> We also let users mark fragments of code blocks as if with a yellow marker.
>
> We currently have a lua filter that does the marking, but it does not work 
> in combination with syntax highlighting. It never returns the CodeBlock and 
> so the highlighter is never called. I have determined that in order to make 
> the two work together, I need to take the following steps:
>
> - determine where the marking is supposed to go
> - remove the [mark] tags and send the code block to the highlighter
> - insert the marking in the resulting highlighted code.
>
> However, I have not found a way to access highlighted code, or call the 
> highlighter, from a lua filter. Is there a way to do that or is my plan 
> doomed to failure?
>
> I am also open to other suggestions.
>
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