Merge pull request #14 from dandehoon/feat/per-lang-config

feat: add per-language defined config

Author: dandehoon

.vscode/launch.json

@@ -11,7 +11,7 @@
 			"outFiles": [
 				"${workspaceFolder}/out/**/*.js"
 			],
-			"preLaunchTask": "${workspaceFolder}/npm: watch"
+			"preLaunchTask": "pnpm: watch"
 		},
 		{
 			"name": "Extension Tests",
@@ -24,7 +24,7 @@
 			"outFiles": [
 				"${workspaceFolder}/out/test/**/*.js"
 			],
-			"preLaunchTask": "npm: watch"
+			"preLaunchTask": "pnpm: watch"
 		}
 	]
 }

.vscode/tasks.json

@@ -2,17 +2,18 @@
 	"version": "2.0.0",
 	"tasks": [
 		{
-			"type": "npm",
-			"script": "watch",
-			"problemMatcher": "$tsc-watch",
+			"label": "pnpm: watch",
+			"type": "shell",
+			"command": "pnpm watch",
 			"isBackground": true,
 			"presentation": {
 				"reveal": "never"
 			},
 			"group": {
 				"kind": "build",
 				"isDefault": true
-			}
+			},
+			"problemMatcher": "$tsc-watch"
 		}
 	]
 }

README.md

@@ -40,6 +40,28 @@ With cursor on `xamp`, next expansions will be:
 → const config = { url: 'https://example.com' };
 ```
 
+## Configuration
+
+Customize token expansion by adding `genericExpandSelection.token.patterns` to your `settings.json`. This setting takes an array of regex strings, which are tried in order. You can set a global default and override it for specific languages.
+
+```jsonc
+{
+  // Global setting for all languages
+  "genericExpandSelection.token.patterns": [
+    "[a-zA-Z0-9_-]+", // matches alphanumeric characters, underscores, and hyphens
+    "[a-zA-Z0-9_\\-.]+", // matches identifiers with dots
+    "[^\\s[\\]{}()\"'`]+" // matches any non-whitespace, non-bracket character
+  ],
+
+  // Override for a specific language (e.g., TypeScript)
+  "[typescript]": {
+    "genericExpandSelection.token.patterns": [
+      "\\w+" // In TypeScript, only match word characters
+    ]
+  }
+}
+```
+
 ## Commands
 
 - **`genericExpandSelection.expand`**: Expand Selection
@@ -57,11 +79,14 @@ pnpm run check
 # Run tests (builds TypeScript, runs esbuild, then executes tests)
 pnpm run test
 
+# Watch for changes and rebuild
+pnpm run watch
+
 # Build, type check, lint, and package extension as out.vsix
 pnpm run build
 
 # Build and install the packaged extension locally (outputs out.vsix and installs it)
-pnpm run vsce:install
+pnpm run local
 ```
 
 ## License

esbuild.js

@@ -40,9 +40,8 @@ const esbuildProblemMatcherPlugin = {
     });
     build.onEnd((result) => {
       result.errors.forEach(({ text, location }) => {
-        console.error(`✘ [ERROR] ${text}`);
         console.error(
-          `    ${location.file}:${location.line}:${location.column}:`,
+          `${location.file}:${location.line}:${location.column}: error: ${text}`,
         );
       });
       console.log('[watch] build finished');

package.json

@@ -57,14 +57,16 @@
 						"[a-zA-Z0-9_\\-.#$@%]+",
 						"[^\\s[\\]{}()\"'`]+"
 					],
-					"description": "Regular expressions for token pattern matching during selection expansion"
+					"description": "Regular expressions for token pattern matching during selection expansion",
+					"scope": "language-overridable"
 				}
 			}
 		}
 	},
 	"scripts": {
 		"check": "tsc --noEmit && eslint src --ext ts",
 		"test": "tsc -p . --outDir out && node esbuild.js && vscode-test",
+		"watch": "node esbuild.js --watch",
 		"build": "pnpm run check && node esbuild.js --production && pnpm dlx vsce package --no-dependencies -o out.vsix",
 		"publish": "pnpm dlx vsce publish --no-dependencies",
 		"local": "pnpm run build && code --install-extension out.vsix"

src/finders/token.ts

@@ -21,7 +21,10 @@ export function findToken(
   const currentPosition = document.positionAt(startIndex);
 
   // Get user-configured patterns or use defaults
-  const config = vscode.workspace.getConfiguration('genericExpandSelection');
+  const config = vscode.workspace.getConfiguration(
+    'genericExpandSelection',
+    document,
+  );
   const userPatterns: string[] = config.get('token.patterns', [
     '[a-zA-Z0-9_-]+',
     '[a-zA-Z0-9_\\-.]+',