| /* -*- indent-tabs-mode: nil; js-indent-level: 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: 23 October 2003 |
| * SUMMARY: Unescaped, unbalanced parens in a regexp should cause SyntaxError. |
| * |
| * The same would also be true for unescaped, unbalanced brackets or braces |
| * if we followed the ECMA-262 Ed. 3 spec on this. But it was decided for |
| * backward compatibility reasons to follow Perl 5, which permits |
| * |
| * 1. an unescaped, unbalanced right bracket ] |
| * 2. an unescaped, unbalanced left brace { |
| * 3. an unescaped, unbalanced right brace } |
| * |
| * If any of these should occur, Perl treats each as a literal |
| * character. Therefore we permit all three of these cases, even |
| * though not ECMA-compliant. Note Perl errors on an unescaped, |
| * unbalanced left bracket; so will we. |
| * |
| * See http://bugzilla.mozilla.org/show_bug.cgi?id=223273 |
| * |
| */ |
| //----------------------------------------------------------------------------- |
| var UBound = 0; |
| var BUGNUMBER = 223273; |
| var summary = 'Unescaped, unbalanced parens in regexp should be a SyntaxError'; |
| var TEST_PASSED = 'SyntaxError'; |
| var TEST_FAILED = 'Generated an error, but NOT a SyntaxError!'; |
| var TEST_FAILED_BADLY = 'Did not generate ANY error!!!'; |
| var CHECK_PASSED = 'Should not generate an error'; |
| var CHECK_FAILED = 'Generated an error!'; |
| var status = ''; |
| var statusitems = []; |
| var actual = ''; |
| var actualvalues = []; |
| var expect= ''; |
| var expectedvalues = []; |
| |
| |
| /* |
| * All the following contain unescaped, unbalanced parens and |
| * should generate SyntaxErrors. That's what we're testing for. |
| * |
| * To allow the test to compile and run, we have to hide the errors |
| * inside eval strings, and check they are caught at run-time. |
| * |
| * Inside such strings, remember to escape any escape character! |
| */ |
| status = inSection(1); |
| testThis(' /(/ '); |
| |
| status = inSection(2); |
| testThis(' /)/ '); |
| |
| status = inSection(3); |
| testThis(' /(abc\\)def(g/ '); |
| |
| status = inSection(4); |
| testThis(' /\\(abc)def)g/ '); |
| |
| |
| /* |
| * These regexp patterns are correct and should not generate |
| * any errors. Note we use checkThis() instead of testThis(). |
| */ |
| status = inSection(5); |
| checkThis(' /\\(/ '); |
| |
| status = inSection(6); |
| checkThis(' /\\)/ '); |
| |
| status = inSection(7); |
| checkThis(' /(abc)def\\(g/ '); |
| |
| status = inSection(8); |
| checkThis(' /(abc\\)def)g/ '); |
| |
| status = inSection(9); |
| checkThis(' /(abc(\\))def)g/ '); |
| |
| status = inSection(10); |
| checkThis(' /(abc([x\\)yz]+)def)g/ '); |
| |
| |
| |
| /* |
| * Unescaped, unbalanced left brackets should be a SyntaxError |
| */ |
| status = inSection(11); |
| testThis(' /[/ '); |
| |
| status = inSection(12); |
| testThis(' /[abc\\]def[g/ '); |
| |
| |
| /* |
| * We permit unescaped, unbalanced right brackets, as does Perl. |
| * No error should result, even though this is not ECMA-compliant. |
| * Note we use checkThis() instead of testThis(). |
| */ |
| status = inSection(13); |
| checkThis(' /]/ '); |
| |
| status = inSection(14); |
| checkThis(' /\\[abc]def]g/ '); |
| |
| |
| /* |
| * These regexp patterns are correct and should not generate |
| * any errors. Note we use checkThis() instead of testThis(). |
| */ |
| status = inSection(15); |
| checkThis(' /\\[/ '); |
| |
| status = inSection(16); |
| checkThis(' /\\]/ '); |
| |
| status = inSection(17); |
| checkThis(' /[abc]def\\[g/ '); |
| |
| status = inSection(18); |
| checkThis(' /[abc\\]def]g/ '); |
| |
| status = inSection(19); |
| checkThis(' /(abc[\\]]def)g/ '); |
| |
| status = inSection(20); |
| checkThis(' /[abc(x\\]yz+)def]g/ '); |
| |
| |
| |
| /* |
| * Run some tests for unbalanced braces. We again follow Perl, and |
| * thus permit unescaped unbalanced braces - both left and right, |
| * even though this is not ECMA-compliant. |
| * |
| * Note we use checkThis() instead of testThis(). |
| */ |
| status = inSection(21); |
| checkThis(' /abc{def/ '); |
| |
| status = inSection(22); |
| checkThis(' /abc}def/ '); |
| |
| status = inSection(23); |
| checkThis(' /a{2}bc{def/ '); |
| |
| status = inSection(24); |
| checkThis(' /a}b{3}c}def/ '); |
| |
| |
| /* |
| * These regexp patterns are correct and should not generate |
| * any errors. Note we use checkThis() instead of testThis(). |
| */ |
| status = inSection(25); |
| checkThis(' /abc\\{def/ '); |
| |
| status = inSection(26); |
| checkThis(' /abc\\}def/ '); |
| |
| status = inSection(27); |
| checkThis(' /a{2}bc\\{def/ '); |
| |
| status = inSection(28); |
| checkThis(' /a\\}b{3}c\\}def/ '); |
| |
| |
| |
| |
| //----------------------------------------------------------------------------- |
| test(); |
| //----------------------------------------------------------------------------- |
| |
| |
| |
| |
| /* |
| * Invalid syntax should generate a SyntaxError |
| */ |
| function testThis(sInvalidSyntax) |
| { |
| expect = TEST_PASSED; |
| actual = TEST_FAILED_BADLY; |
| |
| try |
| { |
| eval(sInvalidSyntax); |
| } |
| catch(e) |
| { |
| if (e instanceof SyntaxError) |
| actual = TEST_PASSED; |
| else |
| actual = TEST_FAILED; |
| } |
| |
| statusitems[UBound] = status; |
| expectedvalues[UBound] = expect; |
| actualvalues[UBound] = actual; |
| UBound++; |
| } |
| |
| |
| /* |
| * Valid syntax shouldn't generate any errors |
| */ |
| function checkThis(sValidSyntax) |
| { |
| expect = CHECK_PASSED; |
| actual = CHECK_PASSED; |
| |
| try |
| { |
| eval(sValidSyntax); |
| } |
| catch(e) |
| { |
| actual = CHECK_FAILED; |
| } |
| |
| statusitems[UBound] = status; |
| expectedvalues[UBound] = expect; |
| actualvalues[UBound] = actual; |
| UBound++; |
| } |
| |
| |
| function test() |
| { |
| enterFunc('test'); |
| printBugNumber(BUGNUMBER); |
| printStatus(summary); |
| |
| for (var i=0; i<UBound; i++) |
| { |
| reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]); |
| } |
| |
| exitFunc ('test'); |
| } |