ota-meshi/eslint-plugin-regexp

eslint-plugin-regexp is ESLint plugin for finding RegExp mistakes and RegExp style guide violations.

This ESLint plugin provides linting rules relate to better ways to help you avoid problems when using RegExp.

• Find the wrong usage of regular expressions, and their hints.
• Enforces a consistent style of regular expressions.
• Find hints for writing optimized regular expressions.
• 80 plugin rules for regular expression syntax and features.

You can check on the Online DEMO.

See documents.

npm install --save-dev eslint eslint-plugin-regexp

Requirements

• ESLint v8.44.0 and above
• Node.js v18.x, v20.x and above

Add regexp to the plugins section of your eslint.config.js or .eslintrc configuration file (you can omit the eslint-plugin- prefix) and either use one of the two configurations available (recommended or all) or configure the rules you want:

The plugin.configs["flat/recommended"] config enables a subset of the rules that should be most useful to most users. See lib/configs/rules/recommended.ts for more details.

// eslint.config.js
import * as regexpPlugin from "eslint-plugin-regexp"

export default [
    regexpPlugin.configs["flat/recommended"],
];

The plugin:regexp/recommended config enables a subset of the rules that should be most useful to most users. See lib/configs/rules/recommended.ts for more details.

// .eslintrc.js
module.exports = {
    "plugins": [
        "regexp"
    ],
    "extends": [
         // add more generic rulesets here, such as:
         // 'eslint:recommended',
        "plugin:regexp/recommended"
    ]
}

Override/add specific rules configurations. See also: http://eslint.org/docs/user-guide/configuring.

// eslint.config.js
import * as regexpPlugin from "eslint-plugin-regexp"

export default [
    {
        plugins: { regexp: regexpPlugin },
        rules: {
            // Override/add rules settings here, such as:
            "regexp/rule-name": "error"
        }
    }
];

// .eslintrc.js
module.exports = {
    "plugins": [
        "regexp"
    ],
    "rules": {
        // Override/add rules settings here, such as:
        "regexp/rule-name": "error"
    }
}

The plugin.configs["flat/all"] / plugin:regexp/all config enables all rules. It's meant for testing, not for production use because it changes with every minor and major version of the plugin. Use it at your own risk. See lib/configs/rules/all.ts for more details.

💼 Configurations enabled in.
⚠️Configurations set to warn in.
🟢 Set in the flat/recommended configuration.
🔵 Set in the recommended configuration.
🔧 Automatically fixable by the --fix CLI option.
💡 Manually fixable by editor suggestions.

• ⛔ These rules have been removed in a previous major release, after they have been deprecated for a while.

See Settings.

eslint-plugin-regexp follows Semantic Versioning and ESLint's Semantic Versioning Policy.

Welcome contributing!

Please use 's Issues/PRs.

See CONTRIBUTING.md.

• npm test runs tests and measures coverage.
• npm run update runs in order to update readme and recommended configuration.
• npm run new [new rule name] runs to create the files needed for the new rule.
• npm run docs:watch starts the website locally.

See the LICENSE file for license rights and limitations (MIT).