mirror of
https://github.com/whoisclebs/lodash.git
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69 lines
2.6 KiB
JavaScript
69 lines
2.6 KiB
JavaScript
/**
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* lodash 3.0.2 (Custom Build) <https://lodash.com/>
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* Build: `lodash modern modularize exports="npm" -o ./`
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* Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
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* Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
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* Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
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* Available under MIT license <https://lodash.com/license>
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*/
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var baseToString = require('lodash._basetostring');
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/** Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks). */
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var reComboMark = /[\u0300-\u036f\ufe20-\ufe23]/g;
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/** Used to match latin-1 supplementary letters (excluding mathematical operators). */
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var reLatin1 = /[\xc0-\xd6\xd8-\xde\xdf-\xf6\xf8-\xff]/g;
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/** Used to map latin-1 supplementary letters to basic latin letters. */
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var deburredLetters = {
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'\xc0': 'A', '\xc1': 'A', '\xc2': 'A', '\xc3': 'A', '\xc4': 'A', '\xc5': 'A',
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'\xe0': 'a', '\xe1': 'a', '\xe2': 'a', '\xe3': 'a', '\xe4': 'a', '\xe5': 'a',
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'\xc7': 'C', '\xe7': 'c',
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'\xd0': 'D', '\xf0': 'd',
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'\xc8': 'E', '\xc9': 'E', '\xca': 'E', '\xcb': 'E',
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'\xe8': 'e', '\xe9': 'e', '\xea': 'e', '\xeb': 'e',
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'\xcC': 'I', '\xcd': 'I', '\xce': 'I', '\xcf': 'I',
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'\xeC': 'i', '\xed': 'i', '\xee': 'i', '\xef': 'i',
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'\xd1': 'N', '\xf1': 'n',
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'\xd2': 'O', '\xd3': 'O', '\xd4': 'O', '\xd5': 'O', '\xd6': 'O', '\xd8': 'O',
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'\xf2': 'o', '\xf3': 'o', '\xf4': 'o', '\xf5': 'o', '\xf6': 'o', '\xf8': 'o',
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'\xd9': 'U', '\xda': 'U', '\xdb': 'U', '\xdc': 'U',
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'\xf9': 'u', '\xfa': 'u', '\xfb': 'u', '\xfc': 'u',
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'\xdd': 'Y', '\xfd': 'y', '\xff': 'y',
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'\xc6': 'Ae', '\xe6': 'ae',
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'\xde': 'Th', '\xfe': 'th',
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'\xdf': 'ss'
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};
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/**
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* Used by `_.deburr` to convert latin-1 supplementary letters to basic latin letters.
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*
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* @private
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* @param {string} letter The matched letter to deburr.
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* @returns {string} Returns the deburred letter.
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*/
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function deburrLetter(letter) {
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return deburredLetters[letter];
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}
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/**
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* Deburrs `string` by converting [latin-1 supplementary letters](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table)
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* to basic latin letters and removing [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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* @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 = baseToString(string);
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return string && string.replace(reLatin1, deburrLetter).replace(reComboMark, '');
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}
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module.exports = deburr;
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