[HarfBuzz] Arabic vowels and shaping - incomplete behavior

[Behdad Esfahbod]

On 10/27/10 07:28, Tom Hacohen wrote:
> Hey,
> 
> Is it just me, or do vowels break shaping in Arabic?

Pango has code to work around Arabic fonts that have no GDEF table, and no
GPOS table.  I've had planned to implement that in HarfBuzz but been putting
it off for a while.  I'll go ahead and do that today.

What font are you using?

behdad

> 
> Any ideas? Example text that works in gtk but doesn't with my
> implementation:
> 
> ضَلُّو
> 
> Thanks,
> Tom.