| /** Used to compose unicode character classes. */ |
| var rsAstralRange = '\\ud800-\\udfff', |
| rsComboMarksRange = '\\u0300-\\u036f', |
| reComboHalfMarksRange = '\\ufe20-\\ufe2f', |
| rsComboSymbolsRange = '\\u20d0-\\u20ff', |
| rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange, |
| rsDingbatRange = '\\u2700-\\u27bf', |
| rsLowerRange = 'a-z\\xdf-\\xf6\\xf8-\\xff', |
| rsMathOpRange = '\\xac\\xb1\\xd7\\xf7', |
| rsNonCharRange = '\\x00-\\x2f\\x3a-\\x40\\x5b-\\x60\\x7b-\\xbf', |
| rsPunctuationRange = '\\u2000-\\u206f', |
| 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', |
| rsUpperRange = 'A-Z\\xc0-\\xd6\\xd8-\\xde', |
| rsVarRange = '\\ufe0e\\ufe0f', |
| rsBreakRange = rsMathOpRange + rsNonCharRange + rsPunctuationRange + rsSpaceRange; |
| |
| /** Used to compose unicode capture groups. */ |
| var rsApos = "['\u2019]", |
| rsBreak = '[' + rsBreakRange + ']', |
| rsCombo = '[' + rsComboRange + ']', |
| rsDigits = '\\d+', |
| rsDingbat = '[' + rsDingbatRange + ']', |
| rsLower = '[' + rsLowerRange + ']', |
| rsMisc = '[^' + rsAstralRange + rsBreakRange + rsDigits + rsDingbatRange + rsLowerRange + rsUpperRange + ']', |
| rsFitz = '\\ud83c[\\udffb-\\udfff]', |
| rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')', |
| rsNonAstral = '[^' + rsAstralRange + ']', |
| rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}', |
| rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]', |
| rsUpper = '[' + rsUpperRange + ']', |
| rsZWJ = '\\u200d'; |
| |
| /** Used to compose unicode regexes. */ |
| var rsMiscLower = '(?:' + rsLower + '|' + rsMisc + ')', |
| rsMiscUpper = '(?:' + rsUpper + '|' + rsMisc + ')', |
| rsOptContrLower = '(?:' + rsApos + '(?:d|ll|m|re|s|t|ve))?', |
| rsOptContrUpper = '(?:' + rsApos + '(?:D|LL|M|RE|S|T|VE))?', |
| reOptMod = rsModifier + '?', |
| rsOptVar = '[' + rsVarRange + ']?', |
| rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*', |
| rsOrdLower = '\\d*(?:1st|2nd|3rd|(?![123])\\dth)(?=\\b|[A-Z_])', |
| rsOrdUpper = '\\d*(?:1ST|2ND|3RD|(?![123])\\dTH)(?=\\b|[a-z_])', |
| rsSeq = rsOptVar + reOptMod + rsOptJoin, |
| rsEmoji = '(?:' + [rsDingbat, rsRegional, rsSurrPair].join('|') + ')' + rsSeq; |
| |
| /** Used to match complex or compound words. */ |
| var reUnicodeWord = RegExp([ |
| rsUpper + '?' + rsLower + '+' + rsOptContrLower + '(?=' + [rsBreak, rsUpper, '$'].join('|') + ')', |
| rsMiscUpper + '+' + rsOptContrUpper + '(?=' + [rsBreak, rsUpper + rsMiscLower, '$'].join('|') + ')', |
| rsUpper + '?' + rsMiscLower + '+' + rsOptContrLower, |
| rsUpper + '+' + rsOptContrUpper, |
| rsOrdUpper, |
| rsOrdLower, |
| rsDigits, |
| rsEmoji |
| ].join('|'), 'g'); |
| |
| /** |
| * Splits a Unicode `string` into an array of its words. |
| * |
| * @private |
| * @param {string} The string to inspect. |
| * @returns {Array} Returns the words of `string`. |
| */ |
| function unicodeWords(string) { |
| return string.match(reUnicodeWord) || []; |
| } |
| |
| module.exports = unicodeWords; |