add tree-sitter-regex

[the-mikedavis]

Example injected into elixir

it's a pretty subtle improvement; I'm not too impressed yet. Let me dig into the grammar and see if we can write some more interesting queries beyond brackets and quantifiers.

[the-mikedavis]

getting closer...

the grammar actually parses some cool stuff, I'm surprised the captures in the upstream repo are so thin 😄

[kirawi]

Maybe you can upstream the queries :P

[the-mikedavis]

Maybe you can upstream the queries :P

tree-sitter-regex is looking a bit in need of maintenance in general, I'll see if I can fixup some of the open issues and clean up queries and testing before opening up this PR for review 👍

[the-mikedavis]

ok I dusted off the repo and upstreamed the queries

it's starting to look pretty good now:

I didn't look around too much for other languages to inject regex into. Seems like rust would be a good idea but I don't think there's a syntactic construct that is always a regex like /foo/ in js or sigil-r in elixir? Maybe we can inject regex into any raw string argument to Regex::new?

[pickfire]

Are you looking into doing this in rust?

(call_expression
  function: (scoped_identifier
    path: (identifier) @_regex (#eq? @_regex "Regex")
    name: (identifier) @_new (#eq? @_new "new"))
  arguments: (arguments
    (raw_string_literal) @regex))

(call_expression
  function: (scoped_identifier
    path: (scoped_identifier (identifier) @_regex (#eq? @_regex "Regex").)
    name: (identifier) @_new (#eq? @_new "new"))
  arguments: (arguments
    (raw_string_literal) @regex))

[the-mikedavis]

Beautiful 🎉

[pickfire]

Nice, looks good to me. \o/