[RFC] Using Rust regex crates in Remacs

[Wilfred]

Rendered

[rirze]

I couldn't find a mention of this within the remacs project, so I thought I'd share here:

A relatively new crate, regex-automata supports &[u8] input and could be theoretically used for regex in remacs. At this current point in time, one will have to write their own wrappers over the crate's lower level functions, but an API for streaming scenarios is on the road map.

[shaleh]

Hmm, the negatives sound like they would make Emacs's famously slow regexes worse. Especially since we would constructing that [u8] using iteration.