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 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

 /* This Source Code Form is subject to the terms of the Mozilla Public

  * License, v. 2.0. If a copy of the MPL was not distributed with this

  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

 /*

  *

  * 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 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');

 }