Extensible link-opening system similar to Org's? (volunteering to implement)

[alphapapa]

Hi,

I'm one of the maintainers of hyperdrive, a peer-to-peer filesystem in Emacs. One of our features is allowing links in Org files to point to other files within a "hyperdrive." This is done easily in Org by adding to org-open-at-point-functions so that links are handled by hyperdrive functions in a buffer where hyperdrive-mode is active.

We'd like to add similar support for Markdown files in markdown-mode. However, looking at the markdown-mode code, I don't see a similarly extensible system that we could plug in to.

So, I'm volunteering to implement such a system in markdown-mode, if the maintainers are willing to accept it. Probably it would be best to imitate Org's system, which would make it easy for packages that already extend Org in that way to extend markdown-mode similarly. Of course, I'll be glad to write the code in a way that meets the maintainers' expectations and work to integrate the feature in the way they deem best.

Please let me know if this is a feature that you'd be willing to consider merging. If so, I'll begin developing it right away. Thanks.

[josephmturner]

Would you be open to extending markdown-mode in this way? @jrblevin @syohex

Thank you!!

[alphapapa]

@syohex I saw that you've been merging some PRs on this repo recently. Thanks for that. Would you be willing to merge a PR that implements this feature? Thanks.

[syohex]

If the change does not break existing features, we'd merge it.

[alphapapa]

@syohex Thanks.