70 lines
3.0 KiB
JavaScript
70 lines
3.0 KiB
JavaScript
/** Used to compose unicode character classes. */
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var rsAstralRange = '\\ud800-\\udfff',
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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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rsDingbatRange = '\\u2700-\\u27bf',
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rsLowerRange = 'a-z\\xdf-\\xf6\\xf8-\\xff',
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rsMathOpRange = '\\xac\\xb1\\xd7\\xf7',
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rsNonCharRange = '\\x00-\\x2f\\x3a-\\x40\\x5b-\\x60\\x7b-\\xbf',
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rsPunctuationRange = '\\u2000-\\u206f',
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rsSpaceRange = ' \\t\\x0b\\f\\xa0\\ufeff\\n\\r\\u2028\\u2029\\u1680\\u180e\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200a\\u202f\\u205f\\u3000',
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rsUpperRange = 'A-Z\\xc0-\\xd6\\xd8-\\xde',
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rsVarRange = '\\ufe0e\\ufe0f',
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rsBreakRange = rsMathOpRange + rsNonCharRange + rsPunctuationRange + rsSpaceRange;
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/** Used to compose unicode capture groups. */
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var rsApos = "['\u2019]",
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rsBreak = '[' + rsBreakRange + ']',
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rsCombo = '[' + rsComboRange + ']',
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rsDigits = '\\d+',
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rsDingbat = '[' + rsDingbatRange + ']',
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rsLower = '[' + rsLowerRange + ']',
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rsMisc = '[^' + rsAstralRange + rsBreakRange + rsDigits + rsDingbatRange + rsLowerRange + rsUpperRange + ']',
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rsFitz = '\\ud83c[\\udffb-\\udfff]',
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rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')',
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rsNonAstral = '[^' + rsAstralRange + ']',
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rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}',
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rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]',
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rsUpper = '[' + rsUpperRange + ']',
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rsZWJ = '\\u200d';
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/** Used to compose unicode regexes. */
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var rsMiscLower = '(?:' + rsLower + '|' + rsMisc + ')',
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rsMiscUpper = '(?:' + rsUpper + '|' + rsMisc + ')',
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rsOptContrLower = '(?:' + rsApos + '(?:d|ll|m|re|s|t|ve))?',
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rsOptContrUpper = '(?:' + rsApos + '(?:D|LL|M|RE|S|T|VE))?',
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reOptMod = rsModifier + '?',
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rsOptVar = '[' + rsVarRange + ']?',
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rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*',
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rsOrdLower = '\\d*(?:1st|2nd|3rd|(?![123])\\dth)(?=\\b|[A-Z_])',
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rsOrdUpper = '\\d*(?:1ST|2ND|3RD|(?![123])\\dTH)(?=\\b|[a-z_])',
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rsSeq = rsOptVar + reOptMod + rsOptJoin,
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rsEmoji = '(?:' + [rsDingbat, rsRegional, rsSurrPair].join('|') + ')' + rsSeq;
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/** Used to match complex or compound words. */
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var reUnicodeWord = RegExp([
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rsUpper + '?' + rsLower + '+' + rsOptContrLower + '(?=' + [rsBreak, rsUpper, '$'].join('|') + ')',
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rsMiscUpper + '+' + rsOptContrUpper + '(?=' + [rsBreak, rsUpper + rsMiscLower, '$'].join('|') + ')',
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rsUpper + '?' + rsMiscLower + '+' + rsOptContrLower,
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rsUpper + '+' + rsOptContrUpper,
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rsOrdUpper,
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rsOrdLower,
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rsDigits,
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rsEmoji
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].join('|'), 'g');
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/**
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* Splits a Unicode `string` into an array of its words.
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*
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* @private
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* @param {string} The string to inspect.
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* @returns {Array} Returns the words of `string`.
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*/
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function unicodeWords(string) {
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return string.match(reUnicodeWord) || [];
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}
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module.exports = unicodeWords;
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