There is a crate that can handle regex over non contiguous data. It had some wea...

		celeritascelery 8 months ago \| parent \| context \| favorite \| on: Ropey – A UTF8 text rope for manipulating and edit... There is a crate that can handle regex over non contiguous data. It had some weak points, but overall is really good https://crates.io/crates/regex-cursor

And looks like Helix editor uses it together with ropey.