gecko-dev/js/tests/ecma_3/RegExp/octal-002.js

219 lines
6.5 KiB
JavaScript

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla 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/MPL/
*
* 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 MPL, 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 MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/*
*
* Date: 31 July 2002
* SUMMARY: Testing regexps containing octal escape sequences
* This is an elaboration of mozilla/js/tests/ecma_2/RegExp/octal-003.js
*
* See http://bugzilla.mozilla.org/show_bug.cgi?id=141078
* for a reference on octal escape sequences in regexps.
*
* NOTE:
* We will use the identities '\011' === '\u0009' === '\x09' === '\t'
*
* The first is an octal escape sequence (\(0-3)OO; O an octal digit).
* See ECMA-262 Edition 2, Section 7.7.4 "String Literals". These were
* dropped in Edition 3 but we support them for backward compatibility.
*
* The second is a Unicode escape sequence (\uHHHH; H a hex digit).
* Since octal 11 = hex 9, the two escapes define the same character.
*
* The third is a hex escape sequence (\xHH; H a hex digit).
* Since hex 09 = hex 0009, this defines the same character.
*
* The fourth is the familiar escape sequence for a horizontal tab,
* defined in the ECMA spec as having Unicode value \u0009.
*/
//-----------------------------------------------------------------------------
var gTestfile = 'octal-002.js';
var i = 0;
var BUGNUMBER = 141078;
var summary = 'Testing regexps containing octal escape sequences';
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();
/*
* Test a string containing the null character '\0' followed by the string '11'
*
* 'a' + String.fromCharCode(0) + '11';
*
* Note we can't simply write 'a\011', because '\011' would be interpreted
* as the octal escape sequence for the tab character (see above).
*
* We should get no match from the regexp /.\011/, because it should be
* looking for the octal escape sequence \011, i.e. the tab character -
*
*/
status = inSection(1);
pattern = /.\011/;
string = 'a' + String.fromCharCode(0) + '11';
actualmatch = string.match(pattern);
expectedmatch = null;
addThis();
/*
* Try same thing with 'xx' in place of '11'.
*
* Should get a match now, because the octal escape sequence in the regexp
* has been reduced from \011 to \0, and '\0' is present in the string -
*/
status = inSection(2);
pattern = /.\0xx/;
string = 'a' + String.fromCharCode(0) + 'xx';
actualmatch = string.match(pattern);
expectedmatch = Array(string);
addThis();
/*
* Same thing; don't use |String.fromCharCode(0)| this time.
* There is no ambiguity in '\0xx': it is the null character
* followed by two x's, no other interpretation is possible.
*/
status = inSection(3);
pattern = /.\0xx/;
string = 'a\0xx';
actualmatch = string.match(pattern);
expectedmatch = Array(string);
addThis();
/*
* This one should produce a match. The two-character string
* 'a' + '\011' is duplicated in the pattern and test string:
*/
status = inSection(4);
pattern = /.\011/;
string = 'a\011';
actualmatch = string.match(pattern);
expectedmatch = Array(string);
addThis();
/*
* Same as above, only now, for the second character of the string,
* use the Unicode escape '\u0009' instead of the octal escape '\011'
*/
status = inSection(5);
pattern = /.\011/;
string = 'a\u0009';
actualmatch = string.match(pattern);
expectedmatch = Array(string);
addThis();
/*
* Same as above, only now for the second character of the string,
* use the hex escape '\x09' instead of the octal escape '\011'
*/
status = inSection(6);
pattern = /.\011/;
string = 'a\x09';
actualmatch = string.match(pattern);
expectedmatch = Array(string);
addThis();
/*
* Same as above, only now for the second character of the string,
* use the escape '\t' instead of the octal escape '\011'
*/
status = inSection(7);
pattern = /.\011/;
string = 'a\t';
actualmatch = string.match(pattern);
expectedmatch = Array(string);
addThis();
/*
* Return to the string from Section 1.
*
* Unlike Section 1, use the RegExp() function to create the
* regexp pattern: null character followed by the string '11'.
*
* Since this is exactly what the string is, we should get a match -
*/
status = inSection(8);
string = 'a' + String.fromCharCode(0) + '11';
pattern = RegExp(string);
actualmatch = string.match(pattern);
expectedmatch = Array(string);
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(BUGNUMBER);
printStatus (summary);
testRegExp(statusmessages, patterns, strings, actualmatches, expectedmatches);
exitFunc ('test');
}