133292 2014-05-26 12:07:18 -0700 Class name matching should use ASCII case-insensitive matching, not Unicode case folding 2014-05-28 10:10:31 -0700 1 1 1 Unclassified WebKit DOM 528+ (Nightly build) All All RESOLVED FIXED P2 Normal --- 1 darin darin benjamin cmarcelo commit-queue esprehn+autocc kangil.han ossy rniwa oldest_to_newest 1011814 0 darin 2014-05-26 12:07:18 -0700 Class name matching should use ASCII case-insensitive matching, not Unicode case folding 1011817 1 232091 darin 2014-05-26 12:42:36 -0700 Created attachment 232091 Patch 1011818 2 darin 2014-05-26 12:46:39 -0700 This same kind of mistake seems common in other parts of the DOM. I’ll have to look at various places that call lower, equalIgnoringCase, and equalPossiblyIgnoringCase to find these mistakes, build more test cases, and then use this new function in more places. I think we’ll also need to add an equalASCIICaseInsensitive function to replace equalIgnoringCase in most cases. I’m taking the terminology from <http://dom.spec.whatwg.org/#ascii-case-insensitive>. 1011820 3 232091 andersca 2014-05-26 12:53:35 -0700 Comment on attachment 232091 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=232091&action=review > Source/WebCore/dom/SpaceSplitString.cpp:197 > + if (SpaceSplitStringData* data = table.get(keyString)) > + return data; Can you .add nullptr here instead and avoid the other hash lookup below? 1011821 4 232091 darin 2014-05-26 12:55:24 -0700 Comment on attachment 232091 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=232091&action=review >> Source/WebCore/dom/SpaceSplitString.cpp:197 >> + return data; > > Can you .add nullptr here instead and avoid the other hash lookup below? I can’t because the string might have no tokens in it. In that case, we do not add anything to do the table. This is actually a problem. It means that if we run into a string with no tokens repeatedly, we do hash table lookups and tokenization every time a SpaceSplitString is created for it! 1011822 5 darin 2014-05-26 12:58:56 -0700 Committed r169358: <http://trac.webkit.org/changeset/169358> 1011827 6 232091 benjamin 2014-05-26 13:25:43 -0700 Comment on attachment 232091 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=232091&action=review Rename shouldFoldCase -> convertToASCIILowercase as the argument of SpaceSplitString::set()? > LayoutTests/ChangeLog:11 > + * fast/dom/getElementsByClassName/ASCII-case-insensitive-expected.txt: Added. > + * fast/dom/getElementsByClassName/ASCII-case-insensitive.html: Added. > + * fast/dom/getElementsByClassName/case-sensitive-expected.txt: Added. > + * fast/dom/getElementsByClassName/case-sensitive.html: Added. Also test that DOMSettableTokenList is no affected? 1011924 7 ossy 2014-05-27 03:07:44 -0700 (In reply to comment #5) > Committed r169358: <http://trac.webkit.org/changeset/169358> It broke the Apple Windows build: 1>WebKit.exp : error LNK2001: unresolved external symbol "private: static class WTF::PassRefPtr<class WTF::StringImpl> __cdecl WTF::AtomicString::addSlowCase(class WTF::StringImpl *)" (?addSlowCase@AtomicString@WTF@@CA?AV?$PassRefPtr@VStringImpl@WTF@@@2@PAVStringImpl@2@@Z) 1>C:\cygwin\home\buildbot\slave\win-release\build\WebKitBuild\Release\bin32\WebKit.dll : fatal error LNK1120: 1 unresolved externals 1>Done Building Project "C:\cygwin\home\buildbot\slave\win-release\build\Source\WebKit\WebKit.vcxproj\WebKit\WebKit.vcxproj" (Build target(s)) -- FAILED. 1011926 8 ossy 2014-05-27 03:26:09 -0700 Fix landed in http://trac.webkit.org/changeset/169376 1012058 9 darin 2014-05-27 13:27:33 -0700 (In reply to comment #6) > Also test that DOMSettableTokenList is no affected? Sure, I’ll add a test. I’ve learned that anywhere HTML specifies case-insensitive matching, it’s ASCII case-insensitive matching. So I will be following this patch up with changes to lots of other places in HTML where we don’t need to do general case folding, but rather simply ASCII case folding. I have started work on some patches for this. By the way, one place this patch missed was the CSS selector compiler matching of class names. My larger patch will cover that too. 1012099 10 benjamin 2014-05-27 17:36:21 -0700 (In reply to comment #9) > By the way, one place this patch missed was the CSS selector compiler matching of class names. My larger patch will cover that too. I don't think className matching is ever case insensitive. All the attribute matching code can be case insensitive and it is probably wrong. 1012243 11 darin 2014-05-28 10:10:31 -0700 (In reply to comment #10) > I don't think className matching is ever case insensitive. It’s amazing how much conflicting information there is about this out on the web. I had real trouble finding anything definitive in either CSS or HTML specifications about it. > All the attribute matching code can be case insensitive and it is probably wrong. I guess that’s why we need test cases. 232091 2014-05-26 12:42:36 -0700 2014-05-26 13:25:43 -0700 Patch bug-133292-20140526124229.patch text/plain 32637 darin U3VidmVyc2lvbiBSZXZpc2lvbjogMTY5MzEzCmRpZmYgLS1naXQgYS9Tb3VyY2UvV1RGL0NoYW5n ZUxvZyBiL1NvdXJjZS9XVEYvQ2hhbmdlTG9nCmluZGV4IGJlMTZjMzE2NGJkMmJkY2ZkYWM2ZTJh NDA4MmRjNmM0NWNkNDVhYTQuLmU5YTcyNmNkYmIxNTViMzJkNDYzYmU4NTViYTIyY2IxN2I4ODk5 MDcgMTAwNjQ0Ci0tLSBhL1NvdXJjZS9XVEYvQ2hhbmdlTG9nCisrKyBiL1NvdXJjZS9XVEYvQ2hh bmdlTG9nCkBAIC0xLDMgKzEsMjYgQEAKKzIwMTQtMDUtMjYgIERhcmluIEFkbGVyICA8ZGFyaW5A YXBwbGUuY29tPgorCisgICAgICAgIENsYXNzIG5hbWUgbWF0Y2hpbmcgc2hvdWxkIHVzZSBBU0NJ SSBjYXNlLWluc2Vuc2l0aXZlIG1hdGNoaW5nLCBub3QgVW5pY29kZSBjYXNlIGZvbGRpbmcKKyAg ICAgICAgaHR0cHM6Ly9idWdzLndlYmtpdC5vcmcvc2hvd19idWcuY2dpP2lkPTEzMzI5MgorCisg ICAgICAgIFJldmlld2VkIGJ5IE5PQk9EWSAoT09QUyEpLgorCisgICAgICAgICogd3RmL3RleHQv QXRvbWljU3RyaW5nLmNwcDoKKyAgICAgICAgKFdURjo6QXRvbWljU3RyaW5nOjphZGRTbG93Q2Fz 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