🎉 first push

.envrc

@@ -0,0 +1 @@
+use flake

.github/workflows/ci.yml

@@ -0,0 +1,21 @@
+name: CI
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+jobs:
+  nix-fmt-check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: cachix/install-nix-action@v27
+      - run: nix fmt
+      - run: nix flake check
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: cachix/install-nix-action@v27
+      - run: nix build

.gitignore

@@ -0,0 +1,3 @@
+.direnv/
+src/
+package.json

flake.nix

@@ -0,0 +1,26 @@
+{
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, nixpkgs, flake-utils }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = import nixpkgs {
+          inherit system;
+        };
+      in
+      {
+        formatter = pkgs.nixpkgs-fmt;
+        devShells.default = pkgs.mkShell {
+          nativeBuildInputs = [ pkgs.tree-sitter ];
+        };
+        packages.default = pkgs.tree-sitter.buildGrammar {
+          generate = true;
+          version = "n/a";
+          src = ./.;
+          language = "dune";
+        };
+      });
+}

grammar.js

@@ -0,0 +1,13 @@
+/// <reference types="tree-sitter-cli/dsl" />
+// @ts-check
+
+module.exports = grammar({
+  name: "dune",
+
+  rules: {
+    source_file: $ => repeat($.sexp),
+    sexp: $ => choice($.atom, $.list),
+    atom: $ => /[a-zA-Z_%.:/{}\"|=\\,\-!#]+/,
+    list: $ => seq('(', repeat($.sexp), ')'),
+  }
+});

queries/highlights.scm

@@ -0,0 +1 @@
+(atom) @variable

test/corpus/actions.txt

@@ -0,0 +1,41 @@
+=====
+copy#
+=====
+
+(rule
+ (targets setup.ml)
+ (mode fallback)
+ (action
+  (copy# setup.defaults.ml setup.ml)))
+
+---
+
+(source_file
+  (sexp
+    (list
+      (sexp
+        (atom))
+      (sexp
+        (list
+          (sexp
+            (atom))
+          (sexp
+            (atom))))
+      (sexp
+        (list
+          (sexp
+            (atom))
+          (sexp
+            (atom))))
+      (sexp
+        (list
+          (sexp
+            (atom))
+          (sexp
+            (list
+              (sexp
+                (atom))
+              (sexp
+                (atom))
+              (sexp
+                (atom)))))))))