feat(vscode): Grammar for basic syntax highlighting (#43)

Author: armsnyder

vscode-extension/.gitignore

@@ -1,6 +1,7 @@
 /node_modules/
 /.vscode-test/
 *.vsix
+*.tmLanguage.json
 
 # These files are copied from the repo root during CI
 /cosign.pub

vscode-extension/package-lock.json

@@ -13,7 +13,7 @@
     "format:check": "prettier --check .",
     "test": "vscode-test",
     "typecheck": "tsc",
-    "prepackage": "cp ../cosign.pub ../CHANGELOG.md ../LICENSE .",
+    "prepackage": "cp ../cosign.pub ../CHANGELOG.md ../LICENSE . && npx js-yaml syntaxes/gdshader.tmLanguage.yaml > syntaxes/gdshader.tmLanguage.json",
     "package": "npm run prepackage && vsce package",
     "publish": "npm run prepackage && vsce publish"
   },
@@ -37,16 +37,19 @@
     "@vscode/vsce": "^3.6.0",
     "eslint": "^9.30.0",
     "eslint-plugin-headers": "^1.3.3",
+    "js-yaml": "^4.1.0",
     "prettier": "^3.6.2"
   },
   "files": [
     "src",
     "node_modules",
+    "syntaxes/*.json",
     "cosign.pub",
     "icon.png",
     "language-configuration.json",
     "README.md",
-    "LICENSE"
+    "LICENSE",
+    "CHANGELOG.md"
   ],
   "publisher": "armsnyder",
   "displayName": "GDShader",
@@ -107,6 +110,13 @@
         "configuration": "./language-configuration.json"
       }
     ],
+    "grammars": [
+      {
+        "language": "gdshader",
+        "scopeName": "source.gdshader",
+        "path": "./syntaxes/gdshader.tmLanguage.json"
+      }
+    ],
     "commands": [
       {
         "command": "gdshader.restartServer",

vscode-extension/package.json

@@ -0,0 +1,52 @@
+# yaml-language-server: $schema=https://www.schemastore.org/tmlanguage.json
+
+scopeName: source.gdshader
+
+patterns:
+  - name: comment.line.double-slash.gdshader
+    match: "//.*"
+
+  - name: comment.block.gdshader
+    begin: '/\*'
+    end: '\*/'
+
+  - name: keyword.control.gdshader
+    match: \b(if|else|for|while|do|switch|case|break|continue|return|discard)\b
+
+  - name: support.type.datatype.gdshader
+    match: \b(void|bool|u?int|float|[biu]?vec[234]|mat[234]|sampler[23]D(Array)?|samplerCube(Array)?|samplerExternalOES|[iu]sampler[23]D)\b
+
+  - name: storage.modifier.gdshader
+    match: \b(const|uniform|instance|global|in|out|inout|varying)\b
+
+  - name: keyword.other.gdshader
+    match: \b(struct|group_uniforms|shader_type|render_mode)\b
+
+  - name: keyword.control.preprocessor.gdshader
+    match: '(?<=^\s*)#\w+'
+
+    # TODO(asnyder): Add support types for other built-ins, like shader types and render modes.
+
+  - name: support.type.hint.gdshader
+    match: '(?<=\buniform\b.+:.*)((hint|filter|repeat)(_[a-z]+)+|source_color)\b'
+
+  - name: keyword.operator.gdshader
+    match: '[+\-*/%=!<>&|^~?:]+'
+
+  - name: constant.numeric.gdshader
+    match: \b(0x)?\d+(\.\d+)?([eE][+\-]?\d+)?\b
+
+  - name: entity.name.function.gdshader
+    match: \b([a-zA-Z_][a-zA-Z0-9_]*)(?=\s*\()
+
+  - name: entity.name.type.struct.gdshader
+    match: \b(?<=struct\s+)([a-zA-Z_][a-zA-Z0-9_]*)\b(?=\s*\{)
+
+  - name: constant.language.gdshader
+    match: \b(true|false|[A-Z_][A-Z0-9_]*)\b
+
+  - name: entity.name.type.gdshader
+    match: \b([a-zA-Z_][a-zA-Z0-9_]*)(?=\s+[a-zA-Z_][a-zA-Z0-9_]*\s*\W)
+
+  - name: variable.name.gdshader
+    match: \b([a-zA-Z_][a-zA-Z0-9_]*)\b