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20 lines
779 B
20 lines
779 B
"use strict";
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exports.__esModule = true;
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exports.default = unesc;
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var whitespace = '[\\x20\\t\\r\\n\\f]';
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var unescapeRegExp = new RegExp('\\\\([\\da-f]{1,6}' + whitespace + '?|(' + whitespace + ')|.)', 'ig');
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function unesc(str) {
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return str.replace(unescapeRegExp, function (_, escaped, escapedWhitespace) {
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var high = '0x' + escaped - 0x10000; // NaN means non-codepoint
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// Workaround erroneous numeric interpretation of +"0x"
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// eslint-disable-next-line no-self-compare
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return high !== high || escapedWhitespace ? escaped : high < 0 ? // BMP codepoint
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String.fromCharCode(high + 0x10000) : // Supplemental Plane codepoint (surrogate pair)
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String.fromCharCode(high >> 10 | 0xd800, high & 0x3ff | 0xdc00);
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});
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}
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module.exports = exports.default; |