Posted By

cochambre on 08/02/06

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Last Edited at 08/02/06 10:20am

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Regular Expressions simple strings search/replace escape method (with RE speed enhancment - precompilation)

/ Published in: JavaScript

Usefull Regular Expressions enhancement. Simplifies standard string operations escaping special chars. And also saves precompiled REs for a speed increase.

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RegExp.escape = function(text) {
  if (!arguments.callee.sRE) {
    var specials = [
      '/', '.', '*', '+', '?', '|',
      '(', ')', '[', ']', '{', '}', '\\\\'
    ];
    arguments.callee.sRE = new RegExp(
      '(\\\\' + specials.join('|\\\\') + ')', 'g'
    );
  }
  return text.replace(arguments.callee.sRE, '\\\\$1');
}