[HarfBuzz] HEH GOAL WITH HAMZA ABOVE(0x06C2) error in arabic

[datao zhang]

Hi Behdad:
When i try to draw the text "U+0628,U+06C2,U+06C2,U+0020" with harfbuzz, i find it is rendered differently  in windows 7. please see attachment file. After checking the hb-ot-shape-complex-arabic-table.hh, I found U+06C2 joining type was JOINING_TYPE_D (double joining).  I don’t know why Unicode specifies it double joining, it really does not make any sense. At least, when render the text, it should be treated as single joining type.
 
Br,
Dean
   





 
  		 	   		  
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/harfbuzz/attachments/20120712/06c3d681/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: harfbuzz.png
Type: image/png
Size: 848 bytes
Desc: not available
URL: <http://lists.freedesktop.org/archives/harfbuzz/attachments/20120712/06c3d681/attachment.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: windows 7.png
Type: image/png
Size: 20913 bytes
Desc: not available
URL: <http://lists.freedesktop.org/archives/harfbuzz/attachments/20120712/06c3d681/attachment-0001.png>