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Follow Perl 5, not ECMA-262 Ed 3 on unescaped, unbalanced brackets and braces. See bug 223273.

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pschwartau%netscape.com 2003-10-24 17:18:21 +00:00
parent 4bab03c0f6
commit 92ef5f7beb
1 changed files with 44 additions and 11 deletions
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55
js/tests/ecma_3/RegExp/regress-223273.js
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@ -36,7 +36,18 @@
* *
* Date: 23 October 2003 * Date: 23 October 2003
* SUMMARY: Unescaped, unbalanced parens in a regexp should cause SyntaxError. * SUMMARY: Unescaped, unbalanced parens in a regexp should cause SyntaxError.
* The same should also be true for unescaped, unbalanced brackets or braces. *
* 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 * See http://bugzilla.mozilla.org/show_bug.cgi?id=223273
* *
@ -105,19 +116,25 @@ checkThis(' /(abc([x\\)yz]+)def)g/ ');
/* /*
* Run similar tests as above for unbalanced brackets - * Unescaped, unbalanced left brackets should be a SyntaxError
*/ */
status = inSection(11); status = inSection(11);
testThis(' /[/ '); testThis(' /[/ ');
status = inSection(12); status = inSection(12);
testThis(' /]/ ');
status = inSection(13);
testThis(' /[abc\\]def[g/ '); 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); status = inSection(14);
testThis(' /\\[abc]def]g/ '); checkThis(' /\\[abc]def]g/ ');
/* /*
@ -145,25 +162,41 @@ checkThis(' /[abc(x\\]yz+)def]g/ ');
/* /*
* Run some tests for unbalanced braces - * 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); status = inSection(21);
testThis(' /abc{def/ '); checkThis(' /abc{def/ ');
status = inSection(22); status = inSection(22);
testThis(' /abc}def/ '); 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 * These regexp patterns are correct and should not generate
* any errors. Note we use checkThis() instead of testThis(). * any errors. Note we use checkThis() instead of testThis().
*/ */
status = inSection(23); status = inSection(25);
checkThis(' /abc\\{def/ '); checkThis(' /abc\\{def/ ');
status = inSection(24); status = inSection(26);
checkThis(' /abc\\}def/ '); checkThis(' /abc\\}def/ ');
status = inSection(27);
checkThis(' /a{2}bc\\{def/ ');
status = inSection(28);
checkThis(' /a\\}b{3}c\\}def/ ');