Enable require-unicode-regexp and regexp/strict rule

eslint.config.js

@@ -134,6 +134,7 @@ export default [
       "prefer-rest-params": "error",
       "prefer-spread": "error",
       "require-await": "error",
+      "require-unicode-regexp": "error",
       "symbol-description": "error",
       yoda: [
         "error",
@@ -149,9 +150,7 @@ export default [
       "prettier-internal-rules/no-identifier-n": "error",
       "prettier-internal-rules/prefer-fs-promises-submodule": "error",
 
-      // @typescript-eslint/eslint-plugin
-      "@typescript-eslint/prefer-ts-expect-error": "error",
-
+      /* @stylistic/eslint-plugin-js */
       "@stylistic/js/quotes": [
         "error",
         "double",
@@ -160,7 +159,10 @@ export default [
         },
       ],
 
-      // eslint-plugin-import
+      /* @typescript-eslint/eslint-plugin */
+      "@typescript-eslint/prefer-ts-expect-error": "error",
+
+      /* eslint-plugin-import */
       "import/no-extraneous-dependencies": [
         "error",
         {
@@ -174,10 +176,10 @@ export default [
         },
       ],
 
-      // eslint-plugin-n
+      /* eslint-plugin-n */
       "n/no-path-concat": "error",
 
-      // eslint-plugin-regexp
+      /* eslint-plugin-regexp */
       "regexp/match-any": [
         "error",
         {
@@ -200,8 +202,6 @@ export default [
           strictTypes: false,
         },
       ],
-      // Conflicting with `unicorn/better-regex`
-      "regexp/strict": "off",
       "regexp/no-super-linear-backtracking": "off",
       "regexp/unicode-property": [
         "error",
@@ -216,10 +216,11 @@ export default [
         },
       ],
 
+      /* eslint-plugin-simple-import-sort */
       "simple-import-sort/imports": "error",
       "simple-import-sort/exports": "error",
 
-      // eslint-plugin-unicorn
+      /* eslint-plugin-unicorn */
       "unicorn/escape-case": "off",
       "unicorn/catch-error-name": "off",
       "unicorn/consistent-destructuring": "off",

scripts/build/build-javascript-module.js

@@ -68,7 +68,7 @@ function getEsbuildOptions({ file, files, shouldCollectLicenses, cliOptions }) {
       process(text) {
         const exports = [
           ...text.matchAll(
-            /(?<=\n)exports\.(?<specifier>\w+) = \k<specifier>;/g,
+            /(?<=\n)exports\.(?<specifier>\w+) = \k<specifier>;/gu,
           ),
         ].map((match) => match.groups.specifier);
 
@@ -112,7 +112,7 @@ function getEsbuildOptions({ file, files, shouldCollectLicenses, cliOptions }) {
     // #12493, not sure what the problem is, but replace the cjs version with esm version seems fix it
     {
       module: require.resolve("tslib"),
-      path: require.resolve("tslib").replace(/tslib\.js$/, "tslib.es6.js"),
+      path: require.resolve("tslib").replace(/tslib\.js$/u, "tslib.es6.js"),
     },
     // https://github.com/evanw/esbuild/issues/2103
     {

scripts/build/build-package-json.js

@@ -58,9 +58,9 @@ async function buildPackageJson({ file, files }) {
             return [
               file.isPlugin ? `./plugins/${basename}` : `./${basename}`,
               {
-                types: `./${file.output.file.replace(/\.js$/, ".d.ts")}`,
+                types: `./${file.output.file.replace(/\.js$/u, ".d.ts")}`,
                 require: `./${file.output.file}`,
-                default: `./${file.output.file.replace(/\.js$/, ".mjs")}`,
+                default: `./${file.output.file.replace(/\.js$/u, ".mjs")}`,
               },
             ];
           }),
@@ -86,7 +86,7 @@ async function buildPackageJson({ file, files }) {
               [`./parser-${basename}.js`, `./${file.output.file}`],
               [
                 `./esm/parser-${basename}.mjs`,
-                `./${file.output.file.replace(/\.js$/, ".mjs")}`,
+                `./${file.output.file.replace(/\.js$/u, ".mjs")}`,
               ],
             ];
           }),

scripts/build/build-types.js

@@ -20,10 +20,7 @@ async function typesFileBuilder({ file }) {
   const replacements = pathReplacementMap[file.input] ?? [];
   let text = await fs.promises.readFile(file.input, "utf8");
   for (const { from, to } of replacements) {
-    text = text.replaceAll(
-      new RegExp(` from "${from}";`, "g"),
-      ` from "${to}";`,
-    );
+    text = text.replaceAll(` from "${from}";`, ` from "${to}";`);
   }
   await writeFile(path.join(DIST_DIR, file.output.file), text);
 }

scripts/build/config.js

@@ -30,7 +30,7 @@ const copyFileBuilder = ({ file }) =>
 function getTypesFileConfig({ input: jsFileInput, outputBaseName, isPlugin }) {
   let input = jsFileInput;
   if (!isPlugin) {
-    input = jsFileInput.replace(/\.[cm]?js$/, ".d.ts");
+    input = jsFileInput.replace(/\.[cm]?js$/u, ".d.ts");
 
     if (!fs.existsSync(path.join(PROJECT_ROOT, input))) {
       return;
@@ -159,7 +159,7 @@ const pluginFiles = [
       {
         module: "*",
         process(text, file) {
-          if (/require\(["'](?:typescript|ts-api-utils)["']\)/.test(text)) {
+          if (/require\(["'](?:typescript|ts-api-utils)["']\)/u.test(text)) {
             throw new Error(`Unexpected \`require("typescript")\` in ${file}.`);
           }
 
@@ -274,21 +274,21 @@ const pluginFiles = [
         process(text) {
           const typescriptVariables = [
             ...text.matchAll(
-              /import (?<variable>\w+) from ["']typescript["']/g,
+              /import (?<variable>\w+) from ["']typescript["']/gu,
             ),
           ].map((match) => match.groups.variable);
 
           // Remove `'property' in typescript` check
           text = text.replaceAll(
             new RegExp(
               `".*?" in (?:${typescriptVariables.join("|")})(?=\\W)`,
-              "g",
+              "gu",
             ),
             "true",
           );
 
           text = text.replaceAll(
-            /(?<=import )(?=\w+ from ["']typescript["'])/g,
+            /(?<=import )(?=\w+ from ["']typescript["'])/gu,
             "* as ",
           );
           return text;
@@ -373,7 +373,7 @@ const pluginFiles = [
       ].map((file) => ({
         module: getPackageFile(`@angular/compiler/esm2022/src/${file}`),
         process: (text) =>
-          text.replaceAll(/(?<=import .*? from )'(.{1,2}\/.*)'/g, "'$1.mjs'"),
+          text.replaceAll(/(?<=import .*? from )'(.{1,2}\/.*)'/gu, "'$1.mjs'"),
       })),
     ],
   },
@@ -468,7 +468,7 @@ const pluginFiles = [
             "const LOCAL_DEBUG = false &&",
           );
 
-          text = text.replace(/(?<=\n)export .*?;/, "export { preprocess };");
+          text = text.replace(/(?<=\n)export .*?;/u, "export { preprocess };");
 
           return text;
         },
@@ -488,7 +488,7 @@ const pluginFiles = [
 
   let { input, umdPropertyName, outputBaseName, ...buildOptions } = file;
 
-  outputBaseName ??= input.match(/\/plugins\/(?<outputBaseName>.*?)\.js$/)
+  outputBaseName ??= input.match(/\/plugins\/(?<outputBaseName>.*?)\.js$/u)
     .groups.outputBaseName;
 
   const umdVariableName = `prettierPlugins.${

scripts/build/esbuild-plugins/add-default-export.js

@@ -12,7 +12,7 @@ export default function esbuildPluginAddDefaultExport() {
 
       let entry;
 
-      build.onResolve({ filter: /./ }, (module) => {
+      build.onResolve({ filter: /./u }, (module) => {
         if (module.kind === "entry-point") {
           const relativePath = module.path
             .slice(module.resolveDir.length + 1)
@@ -23,7 +23,7 @@ export default function esbuildPluginAddDefaultExport() {
         }
       });
 
-      build.onLoad({ filter: /./, namespace }, () => {
+      build.onLoad({ filter: /./u, namespace }, () => {
         const directory = path.dirname(entry);
         const source = `./${path.basename(entry)}`;
 

scripts/build/esbuild-plugins/evaluate.js

@@ -10,7 +10,7 @@ export default function esbuildPluginEvaluate() {
     setup(build) {
       const { format } = build.initialOptions;
 
-      build.onLoad({ filter: /\.evaluate\.c?js$/ }, async ({ path }) => {
+      build.onLoad({ filter: /\.evaluate\.c?js$/u }, async ({ path }) => {
         const module = await importModule(path);
         const text = Object.entries(module)
           .map(([specifier, value]) => {

scripts/build/esbuild-plugins/replace-module.js

@@ -1,8 +1,8 @@
 import fs from "node:fs/promises";
 
-const DEFAULT_ON_RESOLVE_CONCEPTS = { filter: /./, namespace: "file" };
+const DEFAULT_ON_RESOLVE_CONCEPTS = { filter: /./u, namespace: "file" };
 const DEFAULT_ON_LOAD_CONCEPTS = {
-  filter: /\.(?:js|json|mjs|cjs)$/,
+  filter: /\.(?:js|json|mjs|cjs)$/u,
   namespace: "file",
 };
 

scripts/build/esbuild-plugins/strip-node-protocol.js

@@ -2,7 +2,7 @@ export default function esbuildPluginStripNodeProtocol() {
   return {
     name: "strip-node-protocol",
     setup(build) {
-      build.onResolve({ filter: /^node:/ }, ({ path, kind }) =>
+      build.onResolve({ filter: /^node:/u }, ({ path, kind }) =>
         build.resolve(path.slice(5), { kind }),
       );
     },

scripts/build/esmify-typescript-eslint.js

@@ -19,7 +19,7 @@ function esmifyTypescriptEslint(text) {
   */
   text = text.replaceAll(
     // TODO: Use duplicate capture group name when eslint supports
-    /(?<=\n)(?:const|let|var) (?<variable>\w+) = (?:__importStar\(require\(["'](?<moduleName1>.*?)["']\)\)|require\(["'](?<moduleName2>.*?)["']\));/g,
+    /(?<=\n)(?:const|let|var) (?<variable>\w+) = (?:__importStar\(require\(["'](?<moduleName1>.*?)["']\)\)|require\(["'](?<moduleName2>.*?)["']\));/gu,
     (...args) => {
       const groups = args.at(-1);
       return `import * as ${groups.variable} from "${groups.moduleName1 || groups.moduleName2}";`;
@@ -37,7 +37,7 @@ function esmifyTypescriptEslint(text) {
   ````
   */
   text = text.replaceAll(
-    /(?<=\n)(?:const|let|var) (?<variable>\w+) = __importDefault\(require\(["'](?<moduleName>.*?)["']\)\);/g,
+    /(?<=\n)(?:const|let|var) (?<variable>\w+) = __importDefault\(require\(["'](?<moduleName>.*?)["']\)\);/gu,
     outdent`
       import $<variable>_default_export from "$<moduleName>";
       const $<variable> = {default: $<variable>_default_export};
@@ -49,9 +49,9 @@ function esmifyTypescriptEslint(text) {
     'Object.defineProperty(exports, "__esModule", { value: true });',
     "",
   );
-  text = text.replaceAll(/(?<=\n)(?:exports\.\w+ = )+void 0;/g, "");
+  text = text.replaceAll(/(?<=\n)(?:exports\.\w+ = )+void 0;/gu, "");
   text = text.replaceAll(
-    /(?<=\n)exports\.(?<specifier>\w+) = (?<variable>\w+);/g,
+    /(?<=\n)exports\.(?<specifier>\w+) = (?<variable>\w+);/gu,
     (...args) => {
       const { variable, specifier } = args.at(-1);
       if (specifier === variable) {
@@ -63,7 +63,7 @@ function esmifyTypescriptEslint(text) {
   );
 
   text = text.replaceAll(
-    /(?<=\n)exports\.(?<specifier>\w+)(?= = `)/g,
+    /(?<=\n)exports\.(?<specifier>\w+)(?= = `)/gu,
     "export const $<specifier>",
   );
 
@@ -77,7 +77,7 @@ function esmifyTypescriptEslint(text) {
   ````
   */
   text = text.replaceAll(
-    /(?<=\n)__exportStar\(require\(["'](?<moduleName>.*?)["']\), exports\);/g,
+    /(?<=\n)__exportStar\(require\(["'](?<moduleName>.*?)["']\), exports\);/gu,
     'export * from "$<moduleName>";',
   );
 
@@ -91,7 +91,7 @@ function esmifyTypescriptEslint(text) {
   ````
   */
   text = text.replaceAll(
-    /(?<=\n)Object\.defineProperty\(exports, "(?<specifier>\w+)", { enumerable: true, get: function \(\) { return (?<value>.*?); } }\);/g,
+    /(?<=\n)Object\.defineProperty\(exports, "(?<specifier>\w+)", \{ enumerable: true, get: function \(\) \{ return (?<value>.*?); \} \}\);/gu,
     "export const $<specifier> = $<value>;",
   );
 
@@ -106,7 +106,7 @@ function esmifyTypescriptEslint(text) {
   ````
   */
   text = text.replaceAll(
-    /(?<=\n)exports\.(?<specifier>\w+) = __importStar\(require\(["'](?<moduleName>.*?)["']\)\);/g,
+    /(?<=\n)exports\.(?<specifier>\w+) = __importStar\(require\(["'](?<moduleName>.*?)["']\)\);/gu,
     outdent`
       import * as $<specifier>_namespace_export from "$<moduleName>";
       export {$<specifier>_namespace_export as $<specifier>};

scripts/build/modify-typescript-module.js

@@ -8,7 +8,7 @@ import { PROJECT_ROOT, writeFile } from "../utils/index.js";
 import UNUSED_SPECIFIERS from "./typescript-unused-specifiers.js";
 
 function* getModules(text) {
-  const parts = text.split(/(?<=\n)(\/\/ src\/\S+\n)/);
+  const parts = text.split(/(?<=\n)(\/\/ src\/\S+\n)/u);
 
   let start = parts[0].length;
 
@@ -152,7 +152,7 @@ function getExports(entry) {
   const exports = lines
     .map((line) => {
       const match = line.match(
-        /^\s*(?<specifier>.*?): \(\) => (?<variable>.*?),?$/,
+        /^\s*(?<specifier>.*?): \(\) => (?<variable>.*?),?$/u,
       );
 
       if (!match) {

scripts/draft-blog-post.js

@@ -35,7 +35,7 @@ const nextVersion = `${semver.major(version)}.${semver.minor(
 const postGlob = path.join(blogDir, `????-??-??-${nextVersion}.md`);
 const postFile = path.join(
   blogDir,
-  `${new Date().toISOString().replace(/T.+/, "")}-${nextVersion}.md`,
+  `${new Date().toISOString().replace(/T.+/u, "")}-${nextVersion}.md`,
 );
 
 const categories = [

scripts/generate-unused-typescript-specifiers.js

@@ -21,7 +21,7 @@ async function getRemovedSpecifiers(code, exports) {
   const specifiers = [];
   for (const { text } of errors) {
     const match = text.match(
-      /^"(?<variable>.*?)" is not declared in this file$/,
+      /^"(?<variable>.*?)" is not declared in this file$/u,
     );
 
     if (match) {

scripts/lint-changelog.js

@@ -41,14 +41,14 @@ for (const file of [
   }
 }
 
-const authorRegex = /by @[\w-]+|by \[@([\w-]+)]\(https:\/\/github\.com\/\1\)/;
-const titleRegex = /^#{4} (.*?)\((#\d{4,}|\[#\d{4,}])/;
+const authorRegex = /by @[\w-]+|by \[@([\w-]+)\]\(https:\/\/github\.com\/\1\)/u;
+const titleRegex = /^#{4} (.*?)\((#\d{4,}|\[#\d{4,}\])/u;
 
 const template = fs.readFileSync(
   path.join(CHANGELOG_ROOT, TEMPLATE_FILE),
   "utf8",
 );
-const templateComments = template.match(/<!--.*?-->/gs);
+const templateComments = template.match(/<!--.*?-->/gsu);
 const [templateAuthorLink] = template.match(authorRegex);
 const checkedFiles = new Map();
 
@@ -65,7 +65,7 @@ for (const category of CHANGELOG_CATEGORIES) {
       continue;
     }
 
-    const match = prFile.match(/^(\d{4,})(-\d+)?\.md$/);
+    const match = prFile.match(/^(\d{4,})(-\d+)?\.md$/u);
     const displayPath = `${CHANGELOG_DIR}/${category}/${prFile}`;
 
     if (!match) {
@@ -136,7 +136,7 @@ for (const category of CHANGELOG_CATEGORIES) {
       );
     }
 
-    if (/prettier master/i.test(content)) {
+    if (/prettier master/iu.test(content)) {
       showErrorMessage(
         `[${displayPath}]: Please use "main" instead of "master".`,
       );