main
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Last change
on this file was d24f17c, checked in by Aleksandar Panovski <apano77@…>, 15 months ago |
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Initial commit
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File size:
774 bytes
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| 1 | 'use strict';
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| 2 | var $ = require('../internals/export');
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| 3 | var uncurryThis = require('../internals/function-uncurry-this');
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| 4 | var toString = require('../internals/to-string');
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| 5 | var WHITESPACES = require('../internals/whitespaces');
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| 6 |
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| 7 | var charCodeAt = uncurryThis(''.charCodeAt);
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| 8 | var replace = uncurryThis(''.replace);
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| 9 | var NEED_ESCAPING = RegExp('[!"#$%&\'()*+,\\-./:;<=>?@[\\\\\\]^`{|}~' + WHITESPACES + ']', 'g');
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| 10 |
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| 11 | // `RegExp.escape` method
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| 12 | // https://github.com/tc39/proposal-regex-escaping
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| 13 | $({ target: 'RegExp', stat: true, forced: true }, {
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| 14 | escape: function escape(S) {
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| 15 | var str = toString(S);
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| 16 | var firstCode = charCodeAt(str, 0);
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| 17 | // escape first DecimalDigit
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| 18 | return (firstCode > 47 && firstCode < 58 ? '\\x3' : '') + replace(str, NEED_ESCAPING, '\\$&');
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| 19 | }
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| 20 | });
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