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- /** Used to compose unicode character classes. */
- var rsAstralRange = '\\ud800-\\udfff',
- rsComboMarksRange = '\\u0300-\\u036f',
- reComboHalfMarksRange = '\\ufe20-\\ufe2f',
- rsComboSymbolsRange = '\\u20d0-\\u20ff',
- rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange,
- rsVarRange = '\\ufe0e\\ufe0f';
-
- /** Used to compose unicode capture groups. */
- var rsZWJ = '\\u200d';
-
- /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */
- var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboRange + rsVarRange + ']');
-
- /**
- * Checks if `string` contains Unicode symbols.
- *
- * @private
- * @param {string} string The string to inspect.
- * @returns {boolean} Returns `true` if a symbol is found, else `false`.
- */
- function hasUnicode(string) {
- return reHasUnicode.test(string);
- }
-
- module.exports = hasUnicode;
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