languages: added elvish

[rsteube]

Added elvish. Can't see the grammar taking any effect so there is likely still sth. wrong with the config.

[the-mikedavis]

For the syntax highlighting you'll want to add runtime/queries/elvish/highlights.scm and runtime/queries/elvish/injections.scm following the queries in tree-sitter-elvish: https://github.com/ckafi/tree-sitter-elvish/tree/main/queries

The captures need to be adapted to the ones helix uses though: https://docs.helix-editor.com/master/themes.html#syntax-highlighting, for example @parameter should become @variable.parameter

And the injections.scm in tree-sitter-elvish looks like it's in neovim format. In helix format that injection would be

((comment) @injection.content
 (#set! injection.language "comment"))

[the-mikedavis]

Also to clear up the Docs CI's ❌, you'll want to run cargo xtask docgen and commit the changes

[rsteube]

For the syntax highlighting you'll want to add runtime/queries/elvish/highlights.scm and runtime/queries/elvish/injections.scm following the queries in tree-sitter-elvish: https://github.com/ckafi/tree-sitter-elvish/tree/main/queries

The captures need to be adapted to the ones helix uses though: https://docs.helix-editor.com/master/themes.html#syntax-highlighting, for example @parameter should become @variable.parameter

And the injections.scm in tree-sitter-elvish looks like it's in neovim format. In helix format that injection would be

((comment) @injection.content
 (#set! injection.language "comment"))

So basically that probably needs to be forked to support neovim and helix (different format)?

[the-mikedavis]

We host the queries in this repo (https://github.com/helix-editor/helix/tree/master/runtime/queries) since each editor tends to use their own queries. Technically the injections in that repo are wrong according to tree-sitter-cli and could be updated. But for getting syntax highlighting working for elvish in helix we just need the queries to be adapted in-repo here

[rsteube]

Not sure if i got them all, but syntax highlighting is working now and i don't see an error.

[the-mikedavis]

Could you re-run cargo xtask docgen? It should add a checkmark to the highlight column for elvish. After that I think this should be good to go 👍

[rsteube]

Sure. Will do when i'm back home.

[the-mikedavis]

Thanks for working on this, this looks great!