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