# regexp/letter-case

enforce into your favorite case

🔧 The --fix option on the command line (opens new window) can automatically fix some of the problems reported by this rule.

# 📖 Rule Details

This rule is aimed to unify the case of letters.

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# 🔧 Options

{
  "regexp/letter-case": ["error", {
    "caseInsensitive": "lowercase", // or "uppercase" or "ignore"
    "unicodeEscape": "lowercase", // or "uppercase" or "ignore"
    "hexadecimalEscape": "lowercase", // or "uppercase" or "ignore"
    "controlEscape": "uppercase", // or "lowercase" or "ignore"
  }]
}

String options
- "lowercase" ... Enforce lowercase letters.
- "uppercase" ... Enforce uppercase letters.
- "ignore" ... Does not force case.
Properties
- caseInsensitive ... Specifies the letter case when the i flag is present. Default is "lowercase".
- unicodeEscape ... Specifies the letter case when the unicode escapes. Default is "lowercase".
- hexadecimalEscape ... Specifies the letter case when the hexadecimal escapes. Default is "lowercase".
- controlEscape ... Specifies the letter case when the control escapes (e.g. \cX). Default is "uppercase".

# 🚀 Version

This rule was introduced in eslint-plugin-regexp v0.3.0

# 🔍 Implementation

← regexp/hexadecimal-escape regexp/match-any →