Update eslint to v9 (#20)

eslint.config.mjs

@@ -0,0 +1,70 @@
+import babelParser from '@babel/eslint-parser';
+import importX from 'eslint-plugin-import-x';
+import jsdoc from 'eslint-plugin-jsdoc';
+import regexp from 'eslint-plugin-regexp';
+import unicorn from 'eslint-plugin-unicorn';
+import globals from 'globals';
+import neostandard, { plugins as neostdplugins } from 'neostandard';
+
+export default [
+  {
+    ignores: ['dist/', 'test/file/', 'test/wpt/', 'benchmark/']
+  },
+  jsdoc.configs['flat/recommended'],
+  regexp.configs['flat/recommended'],
+  ...neostandard({
+    semi: true
+  }),
+  {
+    plugins: {
+      '@stylistic': neostdplugins['@stylistic'],
+      'import-x': importX,
+      regexp,
+      unicorn
+    },
+    linterOptions: {
+      reportUnusedDisableDirectives: true
+    },
+    languageOptions: {
+      ecmaVersion: 'latest',
+      globals: {
+        ...globals.browser,
+        ...globals.node,
+        ...globals.webextensions
+      },
+      parser: babelParser,
+      parserOptions: {
+        requireConfigFile: false,
+        babelOptions: {
+          babelrc: false,
+          configFile: false,
+          plugins: [
+            '@babel/plugin-syntax-import-assertions'
+          ]
+        }
+      },
+      sourceType: 'module'
+    },
+    rules: {
+      '@stylistic/space-before-function-paren': ['error', {
+        anonymous: 'always',
+        asyncArrow: 'always',
+        named: 'never'
+      }],
+      'import-x/order': ['error', {
+        alphabetize: {
+          order: 'ignore',
+          caseInsensitive: false
+        }
+      }],
+      'no-await-in-loop': 'error',
+      'no-use-before-define': ['error', {
+        allowNamedExports: false,
+        classes: true,
+        functions: true,
+        variables: true
+      }],
+      'unicorn/prefer-node-protocol': 'error'
+    }
+  }
+];

package.json

@@ -25,6 +25,7 @@
     "jsdom": "^25.0.1"
   },
   "devDependencies": {
+    "@babel/core": "^7.25.2",
     "@babel/eslint-parser": "^7.25.1",
     "@babel/plugin-syntax-import-assertions": "^7.25.6",
     "@types/dompurify": "^3.0.5",
@@ -36,14 +37,15 @@
     "copyfiles": "^2.4.1",
     "csvtojson": "^2.0.10",
     "esbuild": "^0.24.0",
-    "eslint": "^8.57.0",
-    "eslint-config-standard": "^17.1.0",
-    "eslint-plugin-import": "^2.30.0",
+    "eslint": "^9.11.1",
+    "eslint-plugin-import-x": "^4.3.0",
     "eslint-plugin-jsdoc": "^50.3.0",
     "eslint-plugin-regexp": "^2.6.0",
     "eslint-plugin-unicorn": "^55.0.0",
+    "globals": "^15.9.0",
     "http-server": "^14.1.1",
     "mocha": "^10.7.3",
+    "neostandard": "^0.11.6",
     "npm-run-all": "^4.1.5",
     "sinon": "^19.0.2",
     "typescript": "^5.6.2",

src/mjs/sanitizer.js

@@ -107,7 +107,7 @@ export class URLSanitizer extends URISchemes {
     purifiedDom = purifiedDom.replace(/(?:#|%23)$/, '')
       .replace(/(?<!(?:#|%23).*)(?:\?|%3F)$/, '');
     return encodeURI(purifiedDom);
-  };
+  }
 
   /**
    * sanitize URL
@@ -363,7 +363,7 @@ export class URLSanitizer extends URISchemes {
     this.#nest = 0;
     this.#recurse.clear();
   }
-};
+}
 
 /* aliases and async wrappers */
 /* instance */

src/mjs/uri-util.js

@@ -228,4 +228,4 @@ export class URISchemes {
       this.#schemes.add(scheme);
     }
   }
-};
+}