janet-ts-mode - Tree-sitter-based Emacs major mode for Janet

[sogaiu]

If you are an Emacs user that is feeling adventurous and/or have an Emacs with native tree-sitter support enabled [1], you might be interested in trying out janet-ts-mode.

Apart from the standard-ish features of:

• Highlighting
• Indentation
• Imenu
• Navigation
• Which-Func

there are now experimental features [2] for the following sorts of things:

• Selection
  • Select something relevant around point
  • Expand current selection
• Formatting Helpers
  • Split across lines, content of selection at opening parens
  • Format pairs within selection to be on own lines
• Wrapping
  • Wrap something at point in tracev call
  • Unwrap a tracev call that contains point
• Comment and Long-String Folding
  • Fold aforementioned forms so they don't take much space
  • Unfold folded forms so the content can be seen
  • Toggle the folding of certain forms
• Delimiters
  • Cycle delimiters: (...) -> [...] -> {...} and back to parens
  • Move right delimiter at point over the next thing to the right - if you're not a structural editor user and have found auto-balanced delimiters (particularly parens) to get in your way, this function might be appealing.

Included is also improved interoperability with rainbow-delimiters -- I have been able to start using long-strings again without fear of corrupting my rainbows :)

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[1] An Emacs appropriately built from the emacs-29 or master branches.
[2] It's just one evaluation of (require 'janet-ts-experiment) away...once janet-ts-mode is set up :P