Package Exports

eslint-plugin-regexp

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Readme

Introduction

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

Features

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

You can check on the Online DEMO.

Documentation

See documents.

Installation

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

Requirements

ESLint v6.0.0 and above

Node.js v8.10.0 and above

Usage

Create .eslintrc.* file to configure rules. See also: http://eslint.org/docs/user-guide/configuring.

Example .eslintrc.js:

module.exports = {
  extends: [
    // add more generic rulesets here, such as:
    // 'eslint:recommended',
    'plugin:regexp/recommended'
  ],
  rules: {
    // override/add rules settings here, such as:
    // 'regexp/rule-name': 'error'
  }
}

Configs

This plugin provides one config:

plugin:regexp/recommended ... This is the recommended configuration for this plugin.
See lib/configs/recommended.ts for details.

Rules

The --fix option on the command line automatically fixes problems reported by rules which have a wrench 🔧 below.
The rules with the following star ⭐ are included in the plugin:regexp/recommended config.

Rule ID	Description
regexp/match-any	enforce match any character style	⭐🔧
regexp/no-assertion-capturing-group	disallow capturing group that captures assertions.	⭐
regexp/no-dupe-characters-character-class	disallow duplicate characters in the RegExp character class	⭐
regexp/no-empty-group	disallow empty group	⭐
regexp/no-empty-lookarounds-assertion	disallow empty lookahead assertion or empty lookbehind assertion	⭐
regexp/no-escape-backspace	disallow escape backspace (`[\b]`)	⭐
regexp/no-invisible-character	disallow invisible raw character	⭐🔧
regexp/no-octal	disallow octal escape sequence	⭐
regexp/no-useless-backreference	disallow useless backreferences in regular expressions
regexp/no-useless-exactly-quantifier	disallow unnecessary exactly quantifier	⭐
regexp/no-useless-two-nums-quantifier	disallow unnecessary `{n,m}` quantifier	⭐
regexp/prefer-d	enforce using `\d`	⭐🔧
regexp/prefer-plus-quantifier	enforce using `+` quantifier	⭐🔧
regexp/prefer-quantifier	enforce using quantifier	🔧
regexp/prefer-question-quantifier	enforce using `?` quantifier	⭐🔧
regexp/prefer-star-quantifier	enforce using `*` quantifier	⭐🔧
regexp/prefer-t	enforce using `\t`	⭐🔧
regexp/prefer-w	enforce using `\w`	⭐🔧

Contributing

Welcome contributing!

Please use GitHub's Issues/PRs.

Development Tools

npm test runs tests and measures coverage.
npm run update runs in order to update readme and recommended configuration.

License

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