Hi everybody,<br /><br />I have written a custom latex `.cls' file to establish a typesetting<br />workflow for the scientific journals of my research institute. The texts<br />should be written in Markdown and then be processed with `pandoc' to<br />LaTeX.<br /><br />I already have an elaborated pandoc template to produce the LaTeX<br />preambel etc. So far its working great.<br /><br />But for the figures I need the caption from the Markdown file to be set<br />with `\sidecaption' instead of `\caption' in LaTeX, as well as with an<br />optional argument (short-caption) for the image attribution in the list<br />of figures.<br /><br />To get the latter working I use the following template from a GitHub<br />discussion in the [pandoc repo]:<br /><br />┌────<br />│ PANDOC_VERSION:must_be_at_least '3.1'<br />│<br />│ if FORMAT:match 'latex' then<br />│   function Figure(f)<br />│     local short = f.content[1].content[1].attributes['short-caption']<br />│     if short and not f.caption.short then<br />│       f.caption.short = pandoc.Inlines(short)<br />│     end<br />│     return f<br />│   end<br />│ end<br />└────<br /><br />That works without any flaws.<br /><br />But now I need to figure out how to change the LaTeX macro used for the<br />caption. The older [approach of pre pandoc version 3.0 posted] by tarleb<br />is really intuitive and I could have easily adapted it to my needs. But<br />since pandoc 3.0 there is the new [/complex figures/] approach and, so<br />far, I couldn't figure out how to change the LaTeX macro used for the<br />captions with this new behaviour.<br /><br />I tried something like that (Adapted from [here]:<br /><br />┌────<br />│ if FORMAT:match 'latex' then<br />│   function RawBlock (raw)<br />│     local caption = raw.text:match('\\caption')<br />│     if caption then<br />│        raw:gsub('\\caption', '\\sidecaption')<br />│     end<br />│     return raw<br />│   end<br />│ end<br />└────<br /><br />But nothing happened.<br /><br />The main challenge for me are my more-or-less non-existing lua skills. I<br />just never had to use it for my daily tasks. I thought about using `awk'<br />or `sed' to edit the `.tex' file itself using a regex-substitution, but<br />that should remain an absolute stopgap, since it makes the whole<br />workflow less portable.<br /><br />Thus, I'm hoping for a hint/a solution in form of a pandoc-lua script<br />which 1. helps me to achieve the goal, and 2. improve my understanding<br />of lua and the /complex figures/ approach for similar future tasks.<br /><br />I appreciate any tipp!<br /><br />Best,<br />Lukeflo<br /><br />This question is also posted on StackOverFlow: https://stackoverflow.com/q/77504584/19647155<br /><br />[pandoc repo]<br />&lt;https://github.com/jgm/pandoc/issues/7915#issuecomment-1427113349&gt;<br /><br />[approach of pre pandoc version 3.0 posted]<br />&lt;https://github.com/jgm/pandoc/issues/7915#issuecomment-1039370851&gt;<br /><br />[/complex figures/] &lt;https://github.com/jgm/pandoc/releases?page=2&gt;<br /><br />[here] &lt;https://stackoverflow.com/a/71296595/19647155&gt;<br />

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