That may be better, but it doesn't solve the problem.

I have attached an input and output file, as well as my expected output.
The difference is that in the caption, HTML tags are returned whole. But
with the "raw_html" extension disabled, they should be encoded. You can see
that in a paragraph HTML tags are encoded, but in the caption they are not.

It seems to me like pandoc.read is using the "raw_html" extension. But I'm
telling it to use PANDOC_READER_OPTIONS, which does not include that
extension, as evidenced by the correct encoding of HTML in the paragraph.

On Mon, Apr 4, 2022 at 12:07 PM Albert Krewinkel <albert+pandoc-9EawChwDxG8hFhg+JK9F0w@public.gmane.org>
wrote:

>
> Bart <bart.hijmans-df9nrXIP1oRmR6Xm/wNWPw@public.gmane.org> writes:
>
> > I'm trying to write a lua filter that adds captions to code blocks
> > (markdown -> html). They are specified as attributes.
> >
> > [...]
> >
> > After looking around for a solution, I came up with the following that
> > seemed very simple:
> >
> > ```lua
> > {pandoc.Plain(pandoc.RawInline(
> >     'html',
> >     pandoc.write(
> >         pandoc.read(
> >             el.attributes.caption,
> >             'markdown',
> >             PANDOC_READER_OPTIONS
> >         ),
> >         'html',
> >         PANDOC_WRITER_OPTIONS
> >      )
> > ))}
> > ```
>
> That's a good solution, in general. Note that you can omit the
> PANDOC_READER_OPTiONS and PANDOC_WRITER_OPTIONS, in which case the
> default options will be used.
>
> Even simpler would be to replace the full snippet above with
>
> ```lua
> pandoc.Plain(
>   pandoc.utils.blocks_to_inlines(
>     pandoc.read(el.attributes.caption, 'markdown').blocks
>   )
> )
> ```
>
> This should give you the result you need and has the advantage of
> working with any output format.
>
> Does this solve the problem? If not, could you add a little example for
> us to look at?
>
> Cheers,
> Albert
>
> --
> Albert Krewinkel
> GPG: 8eed e3e2 e8c5 6f18 81fe  e836 388d c0b2 1f63 1124
>
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