[HarfBuzz] Unicode vs glyphs

[Shriramana Sharma]

On 14-06-2011 20:59, Khaled Hosny wrote:
> All the mentioned scripts can have fonts with glyphs that are not
> assigned Unicode code points, you were lucky to not encounter them until
> now, but in the era of "smart fonts" it is becoming more and more
> common practice especially in high quality fonts.
>
> Regards,
>   Khaled

Khaled, if I am correct to presume (from your name) that you know Arabic 
script, can you tell us whether you nowadays use the separately encoded 
compatibility presentation forms or you use smart font technologies to 
display those presentation forms? If I am not mistaken, Arabic has 
different written forms for characters in initial, middle, final and 
isolate positions (or am I thinking of Mongolian)?

-- 
Shriramana Sharma