Re: How to manipuate <code> block instead of <pre>

[Albert Krewinkel <albert+pandoc-9EawChwDxG8hFhg+JK9F0w@public.gmane.org>]

Please checkout
<https://github.com/pandoc/lua-filters/tree/master/revealjs-codeblock>,
it should help with your issue.

J. E. Marca writes:

> Hi all,
>
> (Apologies in advance if the online editor mangles this post, as I'm
> writing lots html pre tags)
>
> I use pandoc to generate reveal.js presentations. All works well if I let
> pandoc do its thing.
>
>
> However, was looking through the reveal.js v4 docs, and there is a really
> useful hack to highlight successive lines of a code block. See
> https://revealjs.com/code/#step-by-step-highlights.
>
> To use it, the reveal.js docs say to add "data-line-numbers" inside of the
> <code> tag. For example:
>
> ```
> <pre><code data-line-numbers="3-5|8-10|13-15">
> ...
>
> ```
>
>
> That is difficult in pandoc at the moment, as access to the <code> block
> attributes is prevented (see also pandoc issue
> [#3858](https://github.com/jgm/pandoc/issues/3858))
>
>
> Using this:
>
> ```{.bash data-line-numbers="1,2,3,4|4|2|3"}
> osmium extract \
> -p port-au-prince-poly.osm \
> -o port-au-prince-latest.osm \
> haiti-and-domrep-latest.osm.pbf
> ```
>
> produces:
>
> <pre class="bash" data-line-numbers="1,2,3,4|4|2|3" ><code ...
>
>
> I want the data-line-numbers and in fact the class=bash (or
> class=language-bash" ) to be on the code block.
>
>
> The issue I referenced above (#3858) was opened in August 2017 so I'm not
> hopeful for any movement from pandoc. But, it would be useful if there was
> yet another command line switch to force all code markup to occur on the
> <code> block, OR the <pre> block, OR both. Esp. given that the HTML
> recommendation still suggests putting language-*** class inside the <code>
> block.
>
>
> Any other ways around this? My current solution is just to straight up use
> <pre><code  foo=bar etc=etc> tags inside my markdown, which I hate doing as
> it means I'm only targeting reveal.js.
>
>
> Thanks,
> James Marca


--
Albert Krewinkel
GPG: 8eed e3e2 e8c5 6f18 81fe  e836 388d c0b2 1f63 1124