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33 lines
871 B
JavaScript
33 lines
871 B
JavaScript
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var toString = require('./toString');
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/**
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* Used to match `RegExp`
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* [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).
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*/
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var reRegExpChar = /[\\^$.*+?()[\]{}|]/g,
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reHasRegExpChar = RegExp(reRegExpChar.source);
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/**
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* Escapes the `RegExp` special characters "^", "$", "\", ".", "*", "+",
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* "?", "(", ")", "[", "]", "{", "}", and "|" in `string`.
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*
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* @static
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* @memberOf _
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* @since 3.0.0
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* @category String
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* @param {string} [string=''] The string to escape.
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* @returns {string} Returns the escaped string.
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* @example
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*
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* _.escapeRegExp('[lodash](https://lodash.com/)');
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* // => '\[lodash\]\(https://lodash\.com/\)'
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*/
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function escapeRegExp(string) {
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string = toString(string);
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return (string && reHasRegExpChar.test(string))
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? string.replace(reRegExpChar, '\\$&')
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: string;
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}
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module.exports = escapeRegExp;
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