[lvncelot]

Oh wow that looks really neat. I'm using Pandoc a lot anyways, so this might fit nicely into my workload. Thanks for sharing!

[shoeffner]

Pandoc even poses codeblock execution as an exercise in their custom-filter documentation: https://pandoc.org/filters.html The python package panflute is also really nice if you don't want to play around with haskell or the AST JSON directly.