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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) 2003
+* the Initial Developer. All Rights Reserved.
+*
+* Contributor(s): sagdjb@softwareag.com, 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: 19 June 2003
+* SUMMARY: Testing regexp submatches with quantifiers
+*
+* See http://bugzilla.mozilla.org/show_bug.cgi?id=209919
+*
+*/
+//-----------------------------------------------------------------------------
+var i = 0;
+var bug = 209919;
+var summary = 'Testing regexp submatches with quantifiers';
+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();
+
+
+/*
+ * Waldemar: "ECMA-262 15.10.2.5, third algorithm, step 2.1 states that
+ * once the minimum repeat count (which is 0 for *, 1 for +, etc.) has
+ * been satisfied, an atom being repeated must not match the empty string."
+ *
+ * In this example, the minimum repeat count is 0, so the last thing the
+ * capturing parens is permitted to contain is the 'a'. It may NOT go on
+ * to capture the '' at the $ position of 'a', even though '' satifies
+ * the condition b*
+ *
+ */
+status = inSection(1);
+string = 'a';
+pattern = /(a|b*)*/;
+actualmatch = string.match(pattern);
+expectedmatch = Array(string, 'a');
+addThis();
+
+
+/*
+ * In this example, the minimum repeat count is 5, so the capturing parens
+ * captures the 'a', then goes on to capture the '' at the $ position of 'a'
+ * 4 times before it has to stop. Therefore the last thing it contains is ''.
+ */
+status = inSection(2);
+string = 'a';
+pattern = /(a|b*){5,}/;
+actualmatch = string.match(pattern);
+expectedmatch = Array(string, '');
+addThis();
+
+
+/*
+ * Reduction of the above examples to contain only the condition b*
+ * inside the capturing parens. This can be even harder to grasp!
+ *
+ * The global match is the '' at the ^ position of 'a', but the parens
+ * is NOT permitted to capture it since the minimum repeat count is 0!
+ */
+status = inSection(3);
+string = 'a';
+pattern = /(b*)*/;
+actualmatch = string.match(pattern);
+expectedmatch = Array('', undefined);
+addThis();
+
+
+/*
+ * Here we have used the + quantifier (repeat count 1) outside the parens.
+ * Therefore the parens must capture at least once before stopping, so it
+ * does capture the '' this time -
+ */
+status = inSection(4);
+string = 'a';
+pattern = /(b*)+/;
+actualmatch = string.match(pattern);
+expectedmatch = Array('', '');
+addThis();
+
+
+/*
+ * More complex examples -
+ */
+pattern = /^\-?(\d{1,}|\.{0,})*(\,\d{1,})?$/;
+
+ status = inSection(5);
+ string = '100.00';
+ actualmatch = string.match(pattern);
+ expectedmatch = Array(string, '00', undefined);
+ addThis();
+
+ status = inSection(6);
+ string = '100,00';
+ actualmatch = string.match(pattern);
+ expectedmatch = Array(string, '100', ',00');
+ addThis();
+
+ status = inSection(7);
+ string = '1.000,00';
+ actualmatch = string.match(pattern);
+ expectedmatch = Array(string, '000', ',00');
+ 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');
+}