| 12345678910111213141516171819 | var keys = require('./keys.js');// Internal helper to generate functions for escaping and unescaping strings// to/from HTML interpolation.function createEscaper(map) {  var escaper = function(match) {    return map[match];  };  // Regexes for identifying a key that needs to be escaped.  var source = '(?:' + keys(map).join('|') + ')';  var testRegexp = RegExp(source);  var replaceRegexp = RegExp(source, 'g');  return function(string) {    string = string == null ? '' : '' + string;    return testRegexp.test(string) ? string.replace(replaceRegexp, escaper) : string;  };}module.exports = createEscaper;
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