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Edit File: ascii-regexp-subject.js

// Copyright 2008 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
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//       notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
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//       with the distribution.
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//       contributors may be used to endorse or promote products derived
//       from this software without specific prior written permission.
//
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/**
 * @fileoverview Check that an initial ^ will result in a faster match fail.
 */

var s = "foo";
var i;

for (i = 0; i < 18; i++) {
  s = s + s;
}

function repeatRegexp(re) {
  for (i = 0; i < 1000; i++) {
    re.test(s);
  }
}

repeatRegexp(/^bar/);
repeatRegexp(/^foo|^bar|^baz/);
repeatRegexp(/(^bar)/);
repeatRegexp(/(?=^bar)\w+/);

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