pjs/js/tests/js1_2/regexp/regress-9141.js

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JavaScript

/*
* 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 mozilla.org code.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
/**
* File Name: regress-9141.js
* Reference: "http://bugzilla.mozilla.org/show_bug.cgi?id=9141";
* Description:
* From waldemar@netscape.com:
*
* The following page crashes the system:
*
* <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"
* "http://www.w3.org/TR/REC-html40/loose.dtd">
* <HTML>
* <HEAD>
* </HEAD>
* <BODY>
* <SCRIPT type="text/javascript">
* var s = "x";
* for (var i = 0; i != 13; i++) s += s;
* var a = /(?:xx|x)*[slash](s);
* var b = /(xx|x)*[slash](s);
* document.write("Results = " + a.length + "," + b.length);
* </SCRIPT>
* </BODY>
*/
var SECTION = "js1_2"; // provide a document reference (ie, ECMA section)
var VERSION = "ECMA_2"; // Version of JavaScript or ECMA
var TITLE = "Regression test for bugzilla # 9141"; // Provide ECMA section title or a description
var BUGNUMBER = "http://bugzilla.mozilla.org/show_bug.cgi?id=9141"; // Provide URL to bugsplat or bugzilla report
startTest(); // leave this alone
/*
* Calls to AddTestCase here. AddTestCase is a function that is defined
* in shell.js and takes three arguments:
* - a string representation of what is being tested
* - the expected result
* - the actual result
*
* For example, a test might look like this:
*
* var zip = /[\d]{5}$/;
*
* AddTestCase(
* "zip = /[\d]{5}$/; \"PO Box 12345 Boston, MA 02134\".match(zip)", // description of the test
* "02134", // expected result
* "PO Box 12345 Boston, MA 02134".match(zip) ); // actual result
*
*/
var s = "x";
for (var i = 0; i != 13; i++) s += s;
var a = /(?:xx|x)*/(s);
var b = /(xx|x)*/(s);
AddTestCase( "var s = 'x'; for (var i = 0; i != 13; i++) s += s; " +
"a = /(?:xx|x)*/(s); a.length",
1,
a.length );
AddTestCase( "var b = /(xx|x)*/(s); b.length",
2,
b.length );
test(); // leave this alone. this executes the test cases and
// displays results.