_stringToArray.js 1.5 KB

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  1. /** Used to compose unicode character classes. */
  2. var rsAstralRange = '\\ud800-\\udfff',
  3. rsComboMarksRange = '\\u0300-\\u036f\\ufe20-\\ufe23',
  4. rsComboSymbolsRange = '\\u20d0-\\u20f0',
  5. rsVarRange = '\\ufe0e\\ufe0f';
  6. /** Used to compose unicode capture groups. */
  7. var rsAstral = '[' + rsAstralRange + ']',
  8. rsCombo = '[' + rsComboMarksRange + rsComboSymbolsRange + ']',
  9. rsFitz = '\\ud83c[\\udffb-\\udfff]',
  10. rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')',
  11. rsNonAstral = '[^' + rsAstralRange + ']',
  12. rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}',
  13. rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]',
  14. rsZWJ = '\\u200d';
  15. /** Used to compose unicode regexes. */
  16. var reOptMod = rsModifier + '?',
  17. rsOptVar = '[' + rsVarRange + ']?',
  18. rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*',
  19. rsSeq = rsOptVar + reOptMod + rsOptJoin,
  20. rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')';
  21. /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */
  22. var reComplexSymbol = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g');
  23. /**
  24. * Converts `string` to an array.
  25. *
  26. * @private
  27. * @param {string} string The string to convert.
  28. * @returns {Array} Returns the converted array.
  29. */
  30. function stringToArray(string) {
  31. return string.match(reComplexSymbol);
  32. }
  33. module.exports = stringToArray;