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import deburrLetter from './.internal/deburrLetter.js' | |
/** Used to match Latin Unicode letters (excluding mathematical operators). */ | |
const reLatin = /[\xc0-\xd6\xd8-\xf6\xf8-\xff\u0100-\u017f]/g | |
/** Used to compose unicode character classes. */ | |
const rsComboMarksRange = '\\u0300-\\u036f' | |
const reComboHalfMarksRange = '\\ufe20-\\ufe2f' | |
const rsComboSymbolsRange = '\\u20d0-\\u20ff' | |
const rsComboMarksExtendedRange = '\\u1ab0-\\u1aff' | |
const rsComboMarksSupplementRange = '\\u1dc0-\\u1dff' | |
const rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange + rsComboMarksExtendedRange + rsComboMarksSupplementRange | |
/** Used to compose unicode capture groups. */ | |
const rsCombo = `[${rsComboRange}]` | |
/** | |
* Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks) and | |
* [combining diacritical marks for symbols](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks_for_Symbols). | |
*/ | |
const reComboMark = RegExp(rsCombo, 'g') | |
/** | |
* Deburrs `string` by converting | |
* [Latin-1 Supplement](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table) | |
* and [Latin Extended-A](https://en.wikipedia.org/wiki/Latin_Extended-A) | |
* letters to basic Latin letters and removing | |
* [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks). | |
* | |
* @since 3.0.0 | |
* @category String | |
* @param {string} [string=''] The string to deburr. | |
* @returns {string} Returns the deburred string. | |
* @example | |
* | |
* deburr('déjà vu') | |
* // => 'deja vu' | |
*/ | |
function deburr(string) { | |
return string && string.replace(reLatin, deburrLetter).replace(reComboMark, '') | |
} | |
export default deburr |