zed-janet - Janet language support in Zed

Janet language support in Zed.

Notable features:

• Docstrings highlight.
• Symbol outlines.
• Run buttons on (defn main) and (test).
• LSP support via CFiggers/janet-lsp.

Formatting with LSP disabled

In case you don't like LSP but still want the editor to format files for you, use this config to use spork/fmt instead:

{
 "languages": {
 "Janet": {
 "formatter": {
 "external": {
 "command": "janet",
 "arguments": [
 "--eval",
 "(use spork/fmt)(format-print (file/read stdin :all))",
 ],
 },
 },
 },
 },
}

Obviously this requires spork to be globally installed on your machine, but you could tweak this to your use case. Change it to use some locally vendored fmt.janet, or pass --syspath and pray that Janet will find your custom spork installation.

Credits

• tree-sitter-janet-simple: Insanely simple tree-sitter grammar for Janet.
• janet-zed: The original Janet extensions. Abeit abandoned.
• zig: Example on how to write a Zed LSP extension.