Bug 4808

Summary: Line breaking behavior inconsistent between the Latin-1 and Unicode codepaths
Product: WebKit Reporter: mitz
Component: Layout and RenderingAssignee: Dave Hyatt <hyatt>
Status: RESOLVED CONFIGURATION CHANGED    
Severity: Normal CC: ahmad.saleem792, ap, eric, ian, jshin, mpComplete, oliver, rniwa, simon.fraser, zalan
Priority: P2    
Version: 420+   
Hardware: Mac   
OS: OS X 10.4   
Attachments:
Description Flags
testcase
none
Safari 15.6 matches with other browsers none

mitz
Reported 2005-09-02 09:03:57 PDT
Summary: WebKit allows lines to break near non-Latin-1 characters where it does not allow the same break to occur if the character is Latin-1. To reproduce: open the testcase in Safari. Expected: the text in each of the table cells to break into 3 lines, the breaks being after "qui" and before "quia". Firefox renders as expected. Actual: a line break occurs before "+", "(" and "$" when they come after non-Latin-1 (in the 3rd and 4th rows) and after ")" when it comes before non-Latin-1 (in the 2nd and 4th rows).
Attachments
testcase (2.85 KB, text/html)
2005-09-02 09:05 PDT, mitz 		no flags
Details
Safari 15.6 matches with other browsers (2.08 MB, image/png)
2022-07-24 15:52 PDT, Ahmad Saleem 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
mitz
Comment 1 2005-09-02 09:05:36 PDT
Created attachment 3722 [details] testcase
Alexey Proskuryakov
Comment 2 2005-09-02 13:58:59 PDT
I'm using Safari 1.3 (v312) right now, and the test case looks fine. This makes it a regression, I guess.
Oliver Hunt
Comment 3 2005-09-07 02:56:03 PDT
It isn't a regression from v412, but i can't help wondering whether the break behaviour is correct, i'll confirm on the basis it's inconsistent with what is expected. We need a font-type person to say what the correct behaviour should be.
Jungshik Shin
Comment 4 2007-07-16 14:11:40 PDT
ref : UAX #14 : Line breaking properties (http://www.unicode.org/reports/tr14/) Firefox(2) is not compliant to that either. See, for instance, https://bugzilla.mozilla.org/show_bug.cgi?id=255990
Alexey Proskuryakov
Comment 5 2007-10-05 05:04:56 PDT
*** Bug 14906 has been marked as a duplicate of this bug. ***
Eric Seidel (no email)
Comment 6 2012-12-30 17:17:33 PST
All cases look right in your test case Mitz. Would you like to land the test case, or should we just close this?
Ahmad Saleem
Comment 7 2022-07-24 15:52:44 PDT
Created attachment 461181 [details] Safari 15.6 matches with other browsers I am unable to reproduce this bug in Safari 15.6 on macOS 12.5 using attached test case and as can be seen from attached test case, Safari breaks the text same as other browsers. I think this can be marked as "RESOLVED CONFIGURATION CHANGED". Thanks!
alan
Comment 8 2022-07-24 16:01:00 PDT
Thank you!
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