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+/* ***** BEGIN LICENSE BLOCK *****
+* Version: NPL 1.1/GPL 2.0/LGPL 2.1
+*
+* The contents of this file are subject to the Netscape Public License
+* Version 1.1 (the "License"); you may not use this file except in
+* compliance with the License. You may obtain a copy of the License at
+* http://www.mozilla.org/NPL/
+*
+* Software distributed under the License is distributed on an "AS IS" basis,
+* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+* for the specific language governing rights and limitations under the
+* License.
+*
+* The Original Code is JavaScript Engine testing utilities.
+*
+* The Initial Developer of the Original Code is Netscape Communications Corp.
+* Portions created by the Initial Developer are Copyright (C) 2002
+* the Initial Developer. All Rights Reserved.
+*
+* Contributor(s): pschwartau@netscape.com
+*
+* Alternatively, the contents of this file may be used under the terms of
+* either the GNU General Public License Version 2 or later (the "GPL"), or
+* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+* in which case the provisions of the GPL or the LGPL are applicable instead
+* of those above. If you wish to allow use of your version of this file only
+* under the terms of either the GPL or the LGPL, and not to allow others to
+* use your version of this file under the terms of the NPL, indicate your
+* decision by deleting the provisions above and replace them with the notice
+* and other provisions required by the GPL or the LGPL. If you do not delete
+* the provisions above, a recipient may use your version of this file under
+* the terms of any one of the NPL, the GPL or the LGPL.
+*
+* ***** END LICENSE BLOCK *****
+*
+*
+* Date:    18 Feb 2002
+* SUMMARY: Testing re.exec(str) when re.lastIndex is < 0 or > str.length
+*
+* Case 1: If re has the global flag set, then re(str) should be null
+* Case 2: If re doesn't have this set, then re(str) should be unaffected
+*
+* See http://bugzilla.mozilla.org/show_bug.cgi?id=76717
+*
+*
+* From the ECMA-262 Final spec:
+* 
+* 15.10.6.2 RegExp.prototype.exec(string)
+* Performs a regular expression match of string against the regular
+* expression and returns an Array object containing the results of
+* the match, or null if the string did not match.
+*
+* The string ToString(string) is searched for an occurrence of the
+* regular expression pattern as follows:
+*
+* 1.  Let S be the value of ToString(string).
+* 2.  Let length be the length of S.
+* 3.  Let lastIndex be the value of the lastIndex property.
+* 4.  Let i be the value of ToInteger(lastIndex).
+* 5.  If the global property is false, let i = 0.
+* 6.  If i < 0 or i > length then set lastIndex to 0 and return null.
+* 7.  Call [[Match]], giving it the arguments S and i.
+*     If [[Match]] returned failure, go to step 8;
+*     otherwise let r be its State result and go to step 10.
+* 8.  Let i = i+1.
+* 9.  Go to step 6.
+* 10. Let e be r's endIndex value.
+* 11. If the global property is true, set lastIndex to e.
+*
+*          etc.
+*
+*
+* So:
+* 
+* A. If the global flag is not set, |lastIndex| is set to 0
+*    before the match is attempted; thus the match is unaffected.
+*
+* B. If the global flag IS set and re.lastIndex is >= 0 and <= str.length,
+*    |lastIndex| is incremented every time there is a match; not from
+*    i to i+1, but from i to "endIndex" e:
+*
+*      e = (index of last input character matched so far by the pattern) + 1
+*
+*    The match is then attempted from this position in the string (Step 7).
+*
+* C. When the global flag IS set and re.lastIndex is < 0 or > str.length,
+*    |lastIndex| is set to 0 and the match returns null.
+*
+*
+* Note the |lastIndex| property is writeable, and may be set arbitrarily
+* by the programmer - and we will do that below.
+*
+*/
+//-----------------------------------------------------------------------------
+var i = 0;
+var bug = 76717;
+var summary = 'Testing re.exec(str) when re.lastIndex is < 0 or > str.length';
+var status = '';
+var statusmessages = new Array();
+var pattern = '';
+var patterns = new Array();
+var string = '';
+var strings = new Array();
+var actualmatch = '';
+var actualmatches = new Array();
+var expectedmatch = '';
+var expectedmatches = new Array();
+
+
+/******************************************************************************
+ *
+ * Case 1 : when the global flag is set -
+ *
+ *****************************************************************************/
+pattern = /abc/gi;
+string = 'AbcaBcabC';
+
+  status = inSection(1);
+  actualmatch = pattern.exec(string);
+  expectedmatch = Array('Abc');
+  addThis();
+
+  status = inSection(2);
+  actualmatch = pattern.exec(string);
+  expectedmatch = Array('aBc');
+  addThis();
+
+  status = inSection(3);
+  actualmatch = pattern.exec(string);
+  expectedmatch = Array('abC');
+  addThis();
+
+  /*
+   * At this point |lastIndex| is > string.length, so the match should be null -
+   */
+  status = inSection(4);
+  actualmatch = pattern.exec(string);
+  expectedmatch = null;
+  addThis();
+
+  /*
+   * Now let's set |lastIndex| to -1, so the match should again be null -
+   */
+  status = inSection(5);
+  pattern.lastIndex = -1;
+  actualmatch = pattern.exec(string);
+  expectedmatch = null;
+  addThis();
+
+  /*
+   * Now try some edge-case values. Thanks to the work done in
+   * http://bugzilla.mozilla.org/show_bug.cgi?id=124339, |lastIndex|
+   * is now stored as a double instead of a uint32 (unsigned integer).
+   *
+   * Note 2^32 -1 is the upper bound for uint32's, but doubles can go
+   * all the way up to Number.MAX_VALUE. So that's why we need cases
+   * between those two numbers.
+   */ 
+  status = inSection(6);
+  pattern.lastIndex = Math.pow(2,32);
+  actualmatch = pattern.exec(string);
+  expectedmatch = null;
+  addThis();
+  
+  status = inSection(7);
+  pattern.lastIndex = -Math.pow(2,32);
+  actualmatch = pattern.exec(string);
+  expectedmatch = null;
+  addThis();
+
+  status = inSection(8);
+  pattern.lastIndex = Math.pow(2,32) + 1;
+  actualmatch = pattern.exec(string);
+  expectedmatch = null;
+  addThis();
+
+  status = inSection(9);
+  pattern.lastIndex = -(Math.pow(2,32) + 1);
+  actualmatch = pattern.exec(string);
+  expectedmatch = null;
+  addThis();
+
+  status = inSection(10);
+  pattern.lastIndex = Math.pow(2,32) * 2;
+  actualmatch = pattern.exec(string);
+  expectedmatch = null;
+  addThis();
+
+  status = inSection(11);
+  pattern.lastIndex = -Math.pow(2,32) * 2;
+  actualmatch = pattern.exec(string);
+  expectedmatch = null;
+  addThis();
+
+  status = inSection(12);
+  pattern.lastIndex = Math.pow(2,40);
+  actualmatch = pattern.exec(string);
+  expectedmatch = null;
+  addThis();
+
+  status = inSection(13);
+  pattern.lastIndex = -Math.pow(2,40);
+  actualmatch = pattern.exec(string);
+  expectedmatch = null;
+  addThis();
+
+  status = inSection(14);
+  pattern.lastIndex = Number.MAX_VALUE;
+  actualmatch = pattern.exec(string);
+  expectedmatch = null;
+  addThis();
+
+  status = inSection(15);
+  pattern.lastIndex = -Number.MAX_VALUE;
+  actualmatch = pattern.exec(string);
+  expectedmatch = null;
+  addThis();
+  
+
+
+/******************************************************************************
+ *
+ * Case 2: repeat all the above cases WITHOUT the global flag set.
+ * According to EMCA. |lastIndex| should get set to 0 before the match.
+ *
+ * Therefore re.exec(str) should be unaffected; thus our expected values
+ * below are now DIFFERENT when |lastIndex| is < 0 or > str.length
+ *
+ *****************************************************************************/
+
+pattern = /abc/i;
+string = 'AbcaBcabC';
+
+  status = inSection(16);
+  actualmatch = pattern.exec(string);
+  expectedmatch = Array('Abc');
+  addThis();
+
+  status = inSection(17);
+  actualmatch = pattern.exec(string);
+  expectedmatch = Array('Abc'); // NOT Array('aBc') as before -
+  addThis();
+
+  status = inSection(18);
+  actualmatch = pattern.exec(string);
+  expectedmatch = Array('Abc'); // NOT Array('abC') as before -
+  addThis();
+
+  /*
+   * At this point above, |lastIndex| WAS > string.length, but not here - 
+   */
+  status = inSection(19);
+  actualmatch = pattern.exec(string);
+  expectedmatch = Array('Abc') // NOT null as before -
+  addThis();
+
+  /*
+   * Now let's set |lastIndex| to -1
+   */
+  status = inSection(20);
+  pattern.lastIndex = -1;
+  actualmatch = pattern.exec(string);
+  expectedmatch = Array('Abc') // NOT null as before -
+  addThis();
+
+  /*
+   * Now try some edge-case values. Thanks to the work done in
+   * http://bugzilla.mozilla.org/show_bug.cgi?id=124339, |lastIndex|
+   * is now stored as a double instead of a uint32 (unsigned integer).
+   *
+   * Note 2^32 -1 is the upper bound for uint32's, but doubles can go
+   * all the way up to Number.MAX_VALUE. So that's why we need cases
+   * between those two numbers.
+   */ 
+  status = inSection(21);
+  pattern.lastIndex = Math.pow(2,32);
+  actualmatch = pattern.exec(string);
+  expectedmatch = Array('Abc') // NOT null as before -
+  addThis();
+  
+  status = inSection(22);
+  pattern.lastIndex = -Math.pow(2,32);
+  actualmatch = pattern.exec(string);
+  expectedmatch = Array('Abc') // NOT null as before -
+  addThis();
+
+  status = inSection(23);
+  pattern.lastIndex = Math.pow(2,32) + 1;
+  actualmatch = pattern.exec(string);
+  expectedmatch = Array('Abc') // NOT null as before -
+  addThis();
+
+  status = inSection(24);
+  pattern.lastIndex = -(Math.pow(2,32) + 1);
+  actualmatch = pattern.exec(string);
+  expectedmatch = Array('Abc') // NOT null as before -
+  addThis();
+
+  status = inSection(25);
+  pattern.lastIndex = Math.pow(2,32) * 2;
+  actualmatch = pattern.exec(string);
+  expectedmatch = Array('Abc') // NOT null as before -
+  addThis();
+
+  status = inSection(26);
+  pattern.lastIndex = -Math.pow(2,32) * 2;
+  actualmatch = pattern.exec(string);
+  expectedmatch = Array('Abc') // NOT null as before -
+  addThis();
+
+  status = inSection(27);
+  pattern.lastIndex = Math.pow(2,40);
+  actualmatch = pattern.exec(string);
+  expectedmatch = Array('Abc') // NOT null as before -;
+  addThis();
+
+  status = inSection(28);
+  pattern.lastIndex = -Math.pow(2,40);
+  actualmatch = pattern.exec(string);
+  expectedmatch = Array('Abc') // NOT null as before -
+  addThis();
+
+  status = inSection(29);
+  pattern.lastIndex = Number.MAX_VALUE;
+  actualmatch = pattern.exec(string);
+  expectedmatch = Array('Abc') // NOT null as before -
+  addThis();
+
+  status = inSection(30);
+  pattern.lastIndex = -Number.MAX_VALUE;
+  actualmatch = pattern.exec(string);
+  expectedmatch = Array('Abc') // NOT null as before -
+  addThis();
+
+
+
+
+//-------------------------------------------------------------------------------------------------
+test();
+//-------------------------------------------------------------------------------------------------
+
+
+
+function addThis()
+{
+  statusmessages[i] = status;
+  patterns[i] = pattern;
+  strings[i] = string;
+  actualmatches[i] = actualmatch;
+  expectedmatches[i] = expectedmatch;
+  i++;
+}
+
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber (bug);
+  printStatus (summary);
+  testRegExp(statusmessages, patterns, strings, actualmatches, expectedmatches);
+  exitFunc ('test');
+}