elisp-tree-sitter

This HN post though is about a (new) core tree-sitter implementation in Emacs itself, which is not the same as the third party package[1] you linked. To give credit where credit is due though, it was obviously inspired by this work and what it allowed in community-maintained packages. The new implementation has been authored by Yuan Fu in close collaboration with the core Emacs maintainers and the rest of the community. It has been an ongoing effort for many, many months. This is great news, and means that also core Emacs language-binding provided as part of Emacs itself will now be able to make use of tree-sitter based parsers as well, something which wouldn't have been happening if they would have to depend on a third-party package to get those bindings. I've been somewhat involved in the process, although not a major player, but needle

combobulate (alpha quality as of 10/22): source code outline/cliff notes. from github README.rst "Emacs package that provides a standardized framework for manipulating and navigating your source code using tree sitter's concrete syntax tree " -> https://github.com/mickeynp/combobulate https://www.spacemacs.org/ with https://github.com/emacs-tree-sitter/elisp-tree-sitter then write a iterator/loop query for language(s) editing per https://tree-sitter.github.io/tree-sitter/syntax-highlightin... tad less installation heavy (sorta) but also makes use of tree-sitter syntax queries : https://www.lunarvim.org (neovim with treesitter syntax) blockman usage examples: https://www.youtube.com/channel/UC5539gDeAdWqeXcczWuhnBA Alternative examples / takes (per user interface): ### embedding a block of source code in a document: ** carrotsearch.ge

You can use tree-sitter already if you have dynamic module support: https://github.com/emacs-tree-sitter/elisp-tree-sitter

Sort of. The integration needs to be done per-language, though helper packages like emacs-tree-sitter [1] exist. Afaik, C# mode currently uses it [2] though I'm not sure whether any other languages use it yet. [1] https://github.com/ubolonton/emacs-tree-sitter [2] https://github.com/emacs-csharp/csharp-mode/blob/master/csha...

Tree Sitter is amazing. The parsing is fast enough to run on every keystroke. The parse tree is extremely concise and readable. It resembles an AST more than a parse tree (ie no 11 levels of binary op precedence rules in the tree). The parse tree emits specific ERROR nodes, so you can get a semi-functional tree even with broken syntax. I can't wait for the tools to get built with this. Paredit for TypeScript. Syntax-tree based highlighting (vs regex highlighting). A command to "add an arg to current function" which works across languages. A command to add a CSS class to the nearest JSX node, or to walk up the tree at the className="| ..." position, adding a new className if it doesn't exist. There's a nicely documented Emacs package for this [1]. The documentation is at [2]. The parse trees work great. There's syntax highlighting support

Emacs does have a package to use tree-sitter [0]. I think emacs-lsp is aware of this highlighting backend and performs pretty well. (semantic highlighting is pretty slow for C++ with font-lock, with tree-sitter it's a breeze :)) [0]: https://github.com/ubolonton/emacs-tree-sitter

Some people are saying that https://github.com/ubolonton/emacs-tree-sitter will eventually replace the default regexp-based font-lock for syntax highlighting. I'm personally testing it out and it's been great!