Recent updates to tree-sitter branch

[Yuan Fu <casouri@gmail.com>]

Hi,

I’ve recently made some breaking changes and added some goodies to the tree-sitter branch. If anyone have used that branch for … stuff, please have a look at these changes:

1. I reworked the tree-traversal functions—moved them from lisp to C, and changed their name and signature:

treesit-traverse-depth-first   -> treesit-search-subtree
treesit-traverse-breadth-first ->
treesit-traverse-forward       -> treesit-search-forward
treesit-search-forward         -> treesit-search-forward-goto
treesit-search-beginning/end   -> treesit-search-forward-goto
                               -> treesit-induce-sparse-tree

Treesit-induce-sparse-tree is very good for very quickly extracting a tree containing only nodes that satisfy some condition. Maybe it should be called treesit-extract-sparse-tree? “Sparse tree” is an invented word, I’m not aware of a good terminology for this kind of induced tree.

2. Although treesit-font-lock-settings didn’t change, treesit-font-lock-defaults is abandoned. You are also now supposed to use treesit-font-lock-rules to build the queries and set it to treesit-font-lock-settings. It is much cleaner than setting treesit-font-lock-settings manually.

Basically:

(setq treesit-font-lock-defaults ...)

|
V

(setq treesit-font-lock-settings
      (treesit-font-lock-rules
       ...))

3. I removed treesit-defun-query, treesit-beginning/end-of-defun.

That’s it! Happy hacking.

Yuan