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46 lines
1.6 KiB
JavaScript
46 lines
1.6 KiB
JavaScript
var deburrLetter = require('./_deburrLetter'),
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toString = require('./toString');
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/** Used to match Latin Unicode letters (excluding mathematical operators). */
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var reLatin = /[\xc0-\xd6\xd8-\xf6\xf8-\xff\u0100-\u017f]/g;
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/** Used to compose unicode character classes. */
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var rsComboMarksRange = '\\u0300-\\u036f',
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reComboHalfMarksRange = '\\ufe20-\\ufe2f',
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rsComboSymbolsRange = '\\u20d0-\\u20ff',
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rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange;
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/** Used to compose unicode capture groups. */
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var rsCombo = '[' + rsComboRange + ']';
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/**
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* Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks) and
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* [combining diacritical marks for symbols](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks_for_Symbols).
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*/
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var reComboMark = RegExp(rsCombo, 'g');
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/**
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* Deburrs `string` by converting
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* [Latin-1 Supplement](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table)
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* and [Latin Extended-A](https://en.wikipedia.org/wiki/Latin_Extended-A)
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* letters to basic Latin letters and removing
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* [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks).
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*
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* @static
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* @memberOf _
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* @since 3.0.0
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* @category String
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* @param {string} [string=''] The string to deburr.
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* @returns {string} Returns the deburred string.
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* @example
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*
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* _.deburr('déjà vu');
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* // => 'deja vu'
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*/
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function deburr(string) {
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string = toString(string);
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return string && string.replace(reLatin, deburrLetter).replace(reComboMark, '');
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}
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module.exports = deburr;
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