Expand arbitrary string patterns into URLs

[pluiedev]

Successor to #4379 (and also #2394).

The basic idea is that terminal should be able to expand any string within an arbitrary user-provided pattern like GH-114514 into a URL like https://github.com/someuser/somerepo/issues/114514, which can then be Ctrl/Cmd-clicked and run.

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From a maintainer's perspective I worry about the complexity of this feature and how it could potentially greatly increase the I/O overhead of scanning each line for valid pattern matches, similar to what we already do for non-OSC 8 URLs. If someone were able to implement this without massively sacrificing performance, though, then I could potentially change my mind.

[mitchellh]

From a maintainer's perspective I worry about the complexity of this feature and how it could potentially greatly increase the I/O overhead of scanning each line for valid pattern matches

This doesn't exist.

We only have to run the regex scanner on a line where the mouse is. We can ignore the rest. So it's still very efficient. This is already how all URLs (even OSC8!) work today.

[pluiedev]

Fair, but that probably wouldn't suffice for people who want something closer to #2394. I suppose we can just run the match for the entire active screen for that, but I'm still a bit doubtful

[Grazfather]

For #2394, it would only need to be done for what's visible, and only when the 'hints' binding is pressed. Basically Wezterm's quick select mode

[janeklb]

Of the three successor to #4379, would this issue here be the one that covers clicking local file paths (relative to cwd), w/o a scheme? Or would it be #9547?

Or are these three issues strictly referring to URLs, and if so would another successor/issue be welcome?