tree-sitter-langs VS tree-sitter-javascript

I just had a quick look at tree-sitter-langs to double check its TypeScript support. And seems to have a full set of highlight queries for it.

I use script/compile swift from 'tree-sitter-langs' to build the grammar on both M1 and x86 machines. But I was looking at that code yesterday and I actually can't figure out why it works to produce an arm64 dylib for me. There's no place where the target arch is being set. It's very odd.

However, there are no queries available for it to highlight csharp: https://github.com/emacs-tree-sitter/tree-sitter-langs/tree/388dcbbc237b2b1360e5b148e67b158eecede805/queries

I've forked tree-sitter-langs with https://github.com/kiennq/tree-sitter-langs that can be used to convert from the current emacs-tree-sitter syntax to the built-in treesit's syntax. Based on https://github.com/emacs-tree-sitter/tree-sitter-langs/pull/99.

Those grammars are collected in the tree-sitter-langs repo, or you can build them yourself. I assume they're not bundled with Emacs yet, even on the feature branch. I don't know how the Emacs tree-sitter branch expects them to be registered and associated with a language mode, though.

The "essentially" qualifier is just because of the tree-sitter issue I was mentioning earlier which is just that this 3rd party package does not ship binaries built for FreeBSD. Everything else has worked exactly the same as on Linux.

Now I am speculating, but I think it would take less work to go through tree-sitter route. Seems that emacs tree-sitter repo already supports Elixir. And then we would need to write Elixir specific queries for combobulate, which supports incremental selection à la expand-region.

I believe goto_next_test requires support from the tree-sitter parser, specifically tree-sitter-javascript in the case of JS and tree-sitter-typescript in the case of TS.

(use-package treesit :ensure nil :custom ;; Some stuff taken from here: https://robbmann.io/posts/emacs-treesit-auto/ (treesit-extra-load-path '("/usr/lib64/")) (treesit-language-source-alist '((bash . ("https://github.com/tree-sitter/tree-sitter-bash")) (c . ("https://github.com/tree-sitter/tree-sitter-c")) (c++ . ("https://github.com/tree-sitter/tree-sitter-cpp")) (csharp . ("https://github.com/tree-sitter/tree-sitter-c-sharp")) (css . ("https://github.com/tree-sitter/tree-sitter-css")) (elixir ("https://github.com/elixir-lang/tree-sitter-elixir")) (html . ("https://github.com/tree-sitter/tree-sitter-html")) (java . ("https://github.com/tree-sitter/tree-sitter-java")) (javascript . ("https://github.com/tree-sitter/tree-sitter-javascript")) (json . ("https://github.com/tree-sitter/tree-sitter-json")) (lua . ("https://github.com/Azganoth/tree-sitter-lua")) (makefile . ("https://github.com/alemuller/tree-sitter-make")) (org . ("https://github.com/milisims/tree-sitter-org")) (python . ("https://github.com/tree-sitter/tree-sitter-python")) (tsx . ("https://github.com/tree-sitter/tree-sitter-typescript" "master" "tsx/src")) (typescript . ("https://github.com/tree-sitter/tree-sitter-typescript" "master" "typescript/src")) (ruby . ("https://github.com/tree-sitter/tree-sitter-ruby")) (rust . ("https://github.com/tree-sitter/tree-sitter-rust")) (sql . ("https://github.com/m-novikov/tree-sitter-sql")) (toml . ("https://github.com/tree-sitter/tree-sitter-toml")) (yaml . ("https://github.com/ikatyang/tree-sitter-yaml")))) (major-mode-remap-alist '((c-mode . c-ts-mode) (c++-mode . c++-ts-mode) (csharp-mode . csharp-ts-mode) (css-mode . css-ts-mode) (html-mode . html-ts-mode) (java-mode . java-ts-mode) (js-mode . js-ts-mode) (json-mode . json-ts-mode) (makefile-mode . makefile-ts-mode) ;; (org-mode . org-ts-mode) ;; not mature yet (python-mode . python-ts-mode) (typescript-mode . typescript-ts-mode) (ruby-mode . ruby-ts-mode) (rust-mode . rust-ts-mode) (toml-mode . toml-ts-mode) (yaml-mode . yaml-ts-mode))) (treesit-auto-fallback-alist '((toml-ts-mode . conf-toml-mode) (typescript-ts-mode . nil) (tsx-ts-mode . nil))) (treesit-font-lock-settings t) (treesit-simple-indent t) (treesit-defun-type-regexp t)) (use-package treesit-auto :demand t :config (setq treesit-auto-install t) (global-treesit-auto-mode))

Here is the tree-sitter grammar of Elisp:

https://github.com/Wilfred/tree-sitter-elisp/blob/main/gramm... (approx. 200 lines)

and here is the grammar of JavaScript:

https://github.com/tree-sitter/tree-sitter-javascript/blob/m... (approx. 1200 lines)

JavaScript evolved into a language of similar complexity as Perl 5 (the corresponding tree sitter syntax table counts almost 2000 lines, currently).

Next, clone the Javascript grammar for tree-sitter from https://github.com/tree-sitter/tree-sitter-javascript and compile it with cc -shared -fPIC -g -O2 -I src src/scanner.c src/parser.c -o ~/.emacs.d/tree-sitter/libtree-sitter-javascript.dylib.

I downloaded the tree-sitter-javascript repo, created a folder for a custom grammar package, and created a basic package.json file, but I have no clue what the Atom page is talking about regarding call_expression, and the addInjectionPoint code. ELI5?