Bug 119640

Summary:

Word-final Hebrew base letter + diacritic has the wrong width on OS X

Product:

WebKit

Reporter:

hftf <hangfromthefloor>

Component:

Text

Assignee:

Nobody <webkit-unassigned>

Status:

RESOLVED INVALID

Severity:

Normal

CC:

enrica, mitz, mmaxfield, rniwa

Priority:

Version:

528+ (Nightly build)

Hardware:

Mac

OS:

Unspecified

Attachments:

Description	Flags
testcase	none
testcase	none
minimal testcase	none
incorrect rendering (Chrome)	none
correct rendering (Firefox)	none

hftf

Reported 2013-08-09 15:18:43 PDT

Created attachment 208458 [details] testcase At the end of a word, a much smaller width is applied to a Hebrew base character + zero-width diacritic compared to the base character alone, but both should have the same width. Demo: http://ophir.li/demo/heb/heb.php Chrome 28/OS X: http://ophir.li/demo/heb/heb.php.gif (notice the behavior in the second row) Firefox 23/OS X: http://ophir.li/demo/heb/heb.php.fx.gif After a bit of testing, this does not seem to be a regression.

Attachments
testcase (24.06 KB, text/html) 2013-08-09 15:18 PDT, hftf	no flags	Details
testcase (3.68 KB, text/html) 2013-08-09 15:25 PDT, hftf	no flags	Details
minimal testcase (676 bytes, text/html) 2013-08-14 09:06 PDT, hftf	no flags	Details
incorrect rendering (Chrome) (17.35 KB, image/png) 2013-08-14 09:06 PDT, hftf	no flags	Details
correct rendering (Firefox) (18.75 KB, image/png) 2013-08-14 09:07 PDT, hftf	no flags	Details
Show Obsolete (1) View All Add attachment proposed patch, testcase, etc.

hftf

Comment 1 2013-08-09 15:25:36 PDT

Created attachment 208459 [details] testcase Oops. Fixed the attachment.

hftf

Comment 2 2013-08-14 09:06:03 PDT

Created attachment 208735 [details] minimal testcase

hftf

Comment 3 2013-08-14 09:06:55 PDT

Created attachment 208736 [details] incorrect rendering (Chrome)

hftf

Comment 4 2013-08-14 09:07:11 PDT

Created attachment 208737 [details] correct rendering (Firefox)

hftf

Comment 5 2014-04-20 22:31:53 PDT

For what it’s worth, I believe Chrome’s (confirmed) version of this bug is filed here: https://code.google.com/p/chromium/issues/detail?id=318674

Myles C. Maxfield

Comment 6 2014-04-21 12:29:14 PDT

This is a fantastic bug report. However, the problem here exists in the OS X platform itself. The platform is giving WebKit incorrect information about the width of the glyphs, and WebKit is using that incorrect information. Instead of filing this here, you should file this on bugreporter.apple.com. Thanks so much, Myles

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