:bug: referencing footnote in another footnote

[nschloe]

Describe the bug

If the the Markdown file contains something like

[^a]: lorem
[^c]: ipsum [^a]

mdformat fails to format. While the above doesn't render well on GitHub either, mdformat should at least not abort.

Reproduce the bug

See above.

List your environment

No response

[hukkin]

Thanks for the issue!

It seems a vanilla mdformat installation doesn't error, so I presume you have mdformat-footnote installed. I moved the issue.

[nschloe]

so I presume you have mdformat-footnote installed.

Yeah.

Btw, I find it a little weird to have the installation define mdformat behavior. I'd like to force the user to be more explicit, e.g., with

mformat --use-plugins=footnote,... 

Makes this kind of debugging easier as well.

[hukkin]

There was a similar request from someone else some days ago. I can consider that.

Personally I don't find the current state too weird given this is how plugin systems of many other tools such as flake8 and pytest work.