commonmark / commonmark-java

Java library for parsing and rendering CommonMark (Markdown)

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Support for <video> tags

bplump opened this issue · comments

We'd like to embed videos in our CommonMark content. We currently have the ![name](link) syntax to generate an <img> tag.

This CommonMark extension discussion/proposal doesn't seem to have gone anywhere, but it seems to coalesce around using the filename to auto-detect whether a <video> or <audio> tag should be generated over an <img>.

Alternatively, I was considering using image attributes to specify if the renderer should generate a <video> tag.

It appears that LeanPub's Markua uses a combination of the two: auto-detecting video formats but also allowing users to override the detected type with an attribute.

I'll try to put a PR forward to kick off a discussion about implementation but if you've got early thoughts, I'm all ears!

Hey! We already have an image attributes extension, but it seems to work in a different way to Markua's (where the attributes come before the image in a block). Not sure about extending that if we'd be the only ones with that syntax.

I was gonna say "What does GitHub do?" but it seems like they auto-detect video URLs if the video is hosted by them, but maybe that would also be an option for you? You could do that already by post-processing Link nodes.

Auto-detecting based on the filename should already be possible with the current API by overriding the rendering of Image nodes (or replacing them with a custom node in a post processor and then rendering that). Not super nice but workable.

Let me know what you're thinking of doing? Or do a PR if that's easier :)

We opted to hack our own solution in the frontend... (eww) so I'll close this.