typescript-lan VS tree-sitter-module

That was interesting, thanks for pointing it out

I was tremendously sad to see that the Typescript Language Server wasn't owned by Microsoft <https://microsoft.github.io/language-server-protocol/impleme...>, since if there was any sanity in the world a spec bump would travel with a reference implementation showing how they envision such a thing being used

But, I found that the Typescript Language Server that they did list does indeed have a semantic-tokens module in it, although it's much shorter than I would have expected from reading that section in the spec: https://github.com/typescript-language-server/typescript-lan...

One thing I have difficulty understanding is that given MS is (was?) the primary proponent of LSP, why do community projects like typescript-language-server need to exist ?

Why can't arbitrary LSP clients connect directly to tsserver (maintained by MS) ?

[1] https://github.com/typescript-language-server/typescript-lan...

BTW:

While Emacs 29.1 comes with "treesitter" built-in, you still need to manually build and install any treesitter language plugin implementing the actual language specific parser. This can be fiddly and frustrating doing it yourself.

I had a quick success with using this convenience script: https://github.com/casouri/tree-sitter-module/. It provides fully-automated builds for the most popular languages (including typescript, c and c++).

This is how it works for "typescript":

1. Clone the repository: https://github.com/casouri/tree-sitter-module/

2. Install "build-essentials" (providing a c/c++ compiler if you're on Linux).

3. run "./build typescript" from within the repo

4. Copy the resulting shared library from "dist/libtree-sitter-typescript.so" into your "~/.emacs.d/tree-sitter/".

5. Open a random typescript file and try "M-x typescript-ts-mode" which should not give you any error but instead nice syntax highlighting.

You might find there is a treesitter plugin for your language available and it is even supported by "tree-sitter-module" but there is still no major mode, yet. Happened to me for Perl 5.

I will look into building my own tree sitter grammars using https://github.com/casouri/tree-sitter-module as you suggest.

Some time ago I followed this guide https://vxlabs.com/2022/06/12/typescript-development-with-em...

;; FIRST: git clone https://github.com/casouri/tree-sitter-module ;; bash batch.sh ;; THEN : sudo cp dist/* /usr/local/lib ;; FINALLY: (setq treesit-extra-load-path '("/usr/local/lib")) ;; Treesit ;; Eglot (setq treesit-eglot-modes '((:ts (bash-mode . bash-ts-mode) :pacman "bash-language-server") (:ts (c++-mode . c++-ts-mode) :pacman "ccls") (:ts (c-mode . c-ts-mode) :pacman "ccls") (:ts (cpp-mode . cpp-ts-mode) :pacman "ccls") (:ts (c-sharp-mode . sharp-ts-mode)) (:ts (cmake-mode . cmake-ts-mode)) (:ts (css-mode . css-ts-mode) :pacman "vscode-css-languageserver") (:ts (dockerfile-mode . dockerfile-ts-mode)) (:ts (elixir-mode . elixir-ts-mode)) (:ts (glsl-mode . glsl-ts-mode)) (:ts (go-mode . go-ts-mode) :pacman "gopls") (:ts (heex-mode . heex-ts-mode)) (:ts (html-mode . html-ts-mode) :pacman "vscode-html-languageserver") (:ts (java-mode . java-ts-mode)) (:ts (javascript-mode . js-ts-mode) :pacman "typescript-language-server") (:ts (js-json-mode . json-ts-mode) :pacman "vscode-json-languageserver") (:ts (julia-mode . julia-ts-mode)) (:ts (make-mode . make-ts-mode)) (:ts (markdown-mode . markdown-ts-mode)) (:ts (python-mode . python-ts-mode) :pacman "jedi-language-server") (:ts (typescript-mode . typescript-ts-mode) :pacman "typescript-language-server") (:ts (proto-mode . proto-ts-mode)) (:ts (ruby-mode . ruby-ts-mode)) (:ts (rust-mode . rust-ts-mode) :pacman "rust-analyzer") (:ts (sql-mode . sql-ts-mode)) (:ts (toml-mode . toml-ts-mode)) (:ts (tsx-mode . tsx-ts-mode)) (:ts (verilog-mode . verilog-ts-mode)) (:ts (vhdl-mode . vhdl-ts-mode)) (:ts (wgsl-mode . wgsl-ts-mode)) (:ts (yaml-mode . yaml-ts-mode) :pacman "yaml-language-server"))) ;; Not mature yet: ;; (push '(org-mode . org-ts-mode) major-mode-remap-alist) ;; (push '(perl-mode . perl-ts-mode) major-mode-remap-alist) ;; cpan Perl::LanguageServer (require 'treesit) ;; Function to parse the above and make an install command (if (treesit-available-p) (let ((pacman-install-list (list ))) (dolist (ts-pm treesit-eglot-modes) (let ((majmode-remap (plist-get ts-pm :ts)) (pacman-cmd (plist-get ts-pm :pacman))) ;; bind default major-mode to ts-mode (push majmode-remap major-mode-remap-alist) ;; populate install cmd (if pacman-cmd (unless (member pacman-cmd pacman-install-list) (push pacman-cmd pacman-install-list))))) (let ((install-cmd (concat "pacman -S --needed " (--reduce (concat acc " " it) pacman-install-list)))) (message install-cmd))) (user-error "Treesitter not available"))

Also this https://github.com/casouri/tree-sitter-module/issues/13

I've downloaded and generated the libraries for the various languages from: https://github.com/casouri/tree-sitter-module

Third, I'm using tsitter in emacs29. I have https://github.com/casouri/tree-sitter-module installed as a sub-module in ~/.config/emacs, and have a symlink called tree-sitter to ./tree-sitter-module/dist (built by ./tree-sitter-module/batch.sh) . I'm mentioning the tsitter config here since I'm using python-ts-mode which is tree-sitter aware.

I'd recommend checking out https://github.com/casouri/tree-sitter-module for building the native treesit libraries that are required to enable the various languages.

The author of the built-in tree-sitter implementation has published this repo with a build script to help you build various grammars: https://github.com/casouri/tree-sitter-module