99256 - Joining class definition for U+0649 - Arabic Shaping

Status: RESOLVED FIXED

(Core :: Layout: Text and Fonts, defect)

Description

[Maha Abou El-Rous]

Unicode classification for x0649 in V.3.0.1 as D instead of R in V.3.0.0.
Pending communication with the Unicode Society for a fix.

Comment 1

[Roozbeh Pournader]

Just clarifying the bug:

U+0649, ARABIC LETTER ALEF MAKSURA, is considered a "right-joining" Arabic 
letter in Unicode version 3.0.0, but a "dual-joining" one in Unicode 3.0.1.
This can be verified at <http://www.unicode.org/Public/3.0-Update/> and 
<http://www.unicode.org/Public/3.0-Update1/>.

There is no reference to this change or why this happened, anywhere in the 
Unicode website or the Unicode data files.

But I think there is some good reason for that being dual-joining, since that 
is the only way for getting the letter shaped in initial or medial shapes, 
which is used in Uighur, Kazakh, and Kirghiz. Also, these shapes are already 
encoded in the Unicode block for Arabic presentations forms, as U+FBE8 and 
U+FBE9.

Comment 2

[Roozbeh Pournader]

Would someone change the "Platform" and "OS" to "All", and rename the bug to 
refer to "U+0649" instead of "x0649"?

Comment 3

[Mike Kaply [:mkaply]]

Roozbeh, for future reference, I've given you the ability to confirm and update 
all aspects of a bug.

Comment 4

[Ahmad A. Abu-Taha]

Kindly be informed that Ahmad A. Abu-Taha ([e-mail]) from IBM Egypt is 
replacing Maha Abou El-Rous ([e-mail]) in monitoring and receiving 
notifications of Mozilla bugs regarding Arabic.

Comment 5

[Simon Montagu :smontagu]

Fixed in bug 255566