22 lines
620 B
JavaScript
22 lines
620 B
JavaScript
/*
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this seems to be not only shorter, but faster than
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string.replace(/\\/g, '\\\\').
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replace(/\u0008/g, '\\b').
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replace(/\t/g, '\\t').
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replace(/\n/g, '\\n').
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replace(/\f/g, '\\f').
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replace(/\r/g, '\\r').
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replace(/'/g, '\\\'').
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replace(/"/g, '\\"');
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or string.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&")
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see http://jsperf.com/string-escape-regexp-vs-json-stringify
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*/
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function srcEscape(str) {
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var a = {};
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a[str] = 1;
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return JSON.stringify(a).slice(1,-3);
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}
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module.exports.srcEscape = srcEscape;
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