switch to biome for formatting

Author: pdubroy

biome.jsonc

@@ -0,0 +1,55 @@
+{
+  "$schema": "https://biomejs.dev/schemas/2.2.4/schema.json",
+  "vcs": { "enabled": false, "clientKind": "git", "useIgnoreFile": false },
+  "files": { "ignoreUnknown": false },
+  "formatter": {
+    "enabled": true,
+    "formatWithErrors": false,
+    "indentStyle": "space",
+    "indentWidth": 2,
+    "lineEnding": "lf",
+    "lineWidth": 95,
+    "attributePosition": "auto",
+    "bracketSameLine": false,
+    "bracketSpacing": true,
+    "expand": "auto",
+    "useEditorconfig": true,
+    // Keep this in sync with .prettierignore.
+    "includes": [
+      "**",
+      "!**/test/data/*",
+      "!**/*.css",
+      "!**/*.html",
+      "!**/*.ohm-bundle.*",
+      "!**/dist",
+      "!**/pnpm-lock.yaml",
+      "!**/testdata",
+      "!**/third_party",
+      "!**/visualizer",
+      "!packages/wasm/runtime/**"
+    ]
+  },
+  "linter": { "enabled": false },
+  "javascript": {
+    // These options should be kept in sync with .pretterrc.
+    // We do that because various editors read the prettier config.
+    "formatter": {
+      "bracketSpacing": false,
+      "quoteStyle": "single",
+      "trailingCommas": "es5",
+      "arrowParentheses": "asNeeded", // "avoid" not supported in biome
+      // printWidth: see `lineWidth` above
+
+      "jsxQuoteStyle": "double",
+      "quoteProperties": "asNeeded",
+      "semicolons": "always",
+      "bracketSameLine": false,
+      "attributePosition": "auto"
+    }
+  },
+  "html": { "formatter": { "selfCloseVoidElements": "always" } },
+  "assist": {
+    "enabled": true,
+    "actions": { "source": { "organizeImports": "on" } }
+  }
+}

examples/ecmascript/package.json

@@ -10,14 +10,7 @@
     "type": "git",
     "url": "git+https://github.com/ohmjs/ohm.git"
   },
-  "keywords": [
-    "ohm",
-    "ohm-grammar",
-    "es5",
-    "ecmascript",
-    "javascript",
-    "peg"
-  ],
+  "keywords": ["ohm", "ohm-grammar", "es5", "ecmascript", "javascript", "peg"],
   "license": "MIT",
   "bugs": {
     "url": "https://github.com/ohmjs/ohm/issues"
@@ -31,16 +24,9 @@
     "ohm-js": "^17.0.0"
   },
   "ava": {
-    "files": [
-      "!**/test/data/**/*"
-    ]
+    "files": ["!**/test/data/**/*"]
   },
-  "files": [
-    "src",
-    "index.js",
-    "!**/*.test.*",
-    "!**/testdata/**"
-  ],
+  "files": ["src", "index.js", "!**/*.test.*", "!**/testdata/**"],
   "dependencies": {
     "@pkgjs/parseargs": "^0.11.0",
     "jsdom": "^21.1.1"

examples/operators/package.json

@@ -6,13 +6,7 @@
   "scripts": {
     "test": "ava"
   },
-  "keywords": [
-    "ohm",
-    "precedence",
-    "associativity",
-    "javascript",
-    "parsing"
-  ],
+  "keywords": ["ohm", "precedence", "associativity", "javascript", "parsing"],
   "author": "",
   "license": "MIT",
   "devDependencies": {

package.json

@@ -4,7 +4,7 @@
   "scripts": {
     "build": "pnpm -r build",
     "ci-test": "bin/ci-test.sh",
-    "format": "prettier --write . && eslint --fix .",
+    "format": "biome format --write . && eslint --fix .",
     "lint": "eslint .",
     "test": "pnpm -r test"
   },
@@ -14,9 +14,7 @@
     "@eslint/js": "^9.35.0",
     "@types/node": "^20.19.13",
     "eslint": "^9.35.0",
-    "eslint-config-google": "^0.14.0",
     "eslint-plugin-ava": "^15.1.0",
-    "prettier": "^3.0.0",
     "typescript": "^5.8.3"
   },
   "version": "0.0.0"

packages/cli/package.json

@@ -7,9 +7,7 @@
   "repository": "https://github.com/ohmjs/ohm",
   "author": "Patrick Dubroy <pdubroy@gmail.com>",
   "license": "MIT",
-  "files": [
-    "**/*.js"
-  ],
+  "files": ["**/*.js"],
   "dependencies": {
     "commander": "^8.1.0",
     "fast-glob": "^3.2.7"
@@ -33,9 +31,6 @@
     "ts-morph": "^26.0.0"
   },
   "ava": {
-    "extensions": [
-      "mjs",
-      "js"
-    ]
+    "extensions": ["mjs", "js"]
   }
 }

packages/es-grammars/package.json

@@ -3,26 +3,16 @@
   "version": "1.0.1",
   "description": "Ohm grammars for modern versions of ECMAScript/JavaScript (ES2015+).",
   "exports": "./index.mjs",
-  "files": [
-    "index.mjs",
-    "gen/*.ohm"
-  ],
+  "files": ["index.mjs", "gen/*.ohm"],
   "scripts": {
     "build": "for year in $(seq 2015 2022); do YEAR=$year npm run gen-grammar; done",
     "test": "node test/es2015.test.mjs",
     "gen-grammar": "node scripts/generate-ecmascript-grammar.mjs --verbose --name ES$YEAR --overrides spec/es$YEAR/overrides.json spec/es$YEAR/spec.grammar > gen/es$YEAR.grammar.ohm",
     "gen-grammar:es2015": "YEAR=2015 pnpm run gen-grammar"
   },
-  "keywords": [
-    "ohm",
-    "grammar",
-    "ecmascript",
-    "javascript"
-  ],
+  "keywords": ["ohm", "grammar", "ecmascript", "javascript"],
   "author": "Patrick Dubroy <pdubroy@gmail.com>",
-  "contributors": [
-    "Andrew Elgert <andrew.elgert@gmail.com>"
-  ],
+  "contributors": ["Andrew Elgert <andrew.elgert@gmail.com>"],
   "license": "MIT",
   "peerDependencies": {
     "ohm-js": "^17.1.0"

packages/miniohm-js/package.json

@@ -18,9 +18,7 @@
   "publishConfig": {
     "main": "dist/index.js"
   },
-  "files": [
-    "dist"
-  ],
+  "files": ["dist"],
   "scripts": {
     "build": "tsc",
     "check": "tsc --noEmit"

packages/ohm-js/package.json

@@ -38,14 +38,7 @@
       "./dist/ohm-extras.cjs"
     ]
   },
-  "files": [
-    "src",
-    "dist",
-    "extras",
-    "index.mjs",
-    "index.d.ts",
-    "!**/*.old"
-  ],
+  "files": ["src", "dist", "extras", "index.mjs", "index.d.ts", "!**/*.old"],
   "types": "index.d.ts",
   "scripts": {
     "prebootstrap": "bash scripts/prebootstrap",
@@ -146,9 +139,7 @@
   },
   "ava": {
     "watchMode": {
-      "ignoreChanges": [
-        "version.js"
-      ]
+      "ignoreChanges": ["version.js"]
     }
   }
 }

packages/ohm-js/test/test-ohm-syntax.js

@@ -253,7 +253,7 @@ test('ranges w/ code points > 0xFFFF, special cases', t => {
   `);
   // Try matching against a string where the first unit is a high surrogate,
   // but the second unit is *not* a low surrogate.
-  assertSucceeds(t, g2.match('\u{D83D}x'));
+  assertSucceeds(t, g2.match('\uD83Dx'));
 });
 
 test('any consumes an entire code point', t => {

packages/ohm-js/test/test-recipes.js

@@ -136,12 +136,7 @@ test('recipes with U+2028 LINE SEPARATOR and U+2029 PARAGRAPH SEPARATOR', t => {
   t.falsy(ohm.grammar('G { x = "blah\u2029" }').toRecipe().includes('\u2029'));
 
   // ...and with an escaped separator.
-  t.falsy(
-    ohm
-      .grammar(String.raw`G { x = "blah\u2028" }`)
-      .toRecipe()
-      .includes('\u2028')
-  );
+  t.falsy(ohm.grammar(String.raw`G { x = "blah\u2028" }`).toRecipe().includes('\u2028'));
 });
 
 test('semantics recipes', t => {