[Languages]: Penrose grammar and syntax highlighting.

[klukaszek]

Problem

I've recently been messing around with the Penrose diagramming language, but I've decided that I wanted to edit my files locally (with highlighting) without their proprietary editor, Vim, Sublime, or Emacs.

Solution

I've implemented a tree-sitter grammar with queries that seem to work with the majority of .style, .domain, and .substance files (verified on official Penrose examples).

These have been added to runtime/queries/penrose/ and languages.toml.

Future

I might consider attempting a simple LSP using tower, but for the time being this is enough for me and matches their proprietary editor.

---

.style

.domain

.substance

---

Thanks for the awesome editor!

[the-mikedavis]

From the CI it looks like the repo fails to clone on Windows somehow?

[the-mikedavis]

Could you add a license file to the repo and update the rev here when it is included?

[klukaszek]

Fixed it up! I honestly thought tree-sitter cli had already produced the license file because of the init process.

[the-mikedavis]

Suggested change

	scope = "source.{domain, substance, style}"
	scope = "source.penrose"

This key is currently not used for anything. It's meant to be more about the language (name) rather than file extensions though

[klukaszek]

Fixed!

[the-mikedavis]

We use different captures for textobjects queries than Neovim, see https://docs.helix-editor.com/master/guides/textobject.html

[klukaszek]

Ah thank you! Should be fixed now. Same goes for below.

[the-mikedavis]

We also use different captures for highlighting, see https://docs.helix-editor.com/master/themes.html#syntax-highlighting

For example @number should be @constant.numeric, @boolean can be @constant.builtin.boolean, etc..

[klukaszek]

^^

[klukaszek]

As for the Windows problem, it seems that the Penrose examples contained some SVG ZoneIdentifiers that should not have been there.

Should be resolved on next run.