[HarfBuzz] Tai Tham Shaping Question #2 : MEDIAL RA

Behdad Esfahbod behdad at behdad.org
Fri May 18 14:49:29 PDT 2012

On 05/18/2012 04:23 PM, Ed Trager wrote:
> Hi, Behdad and HarfBuzz folks,
> 2nd TAI THAM shaping question:
> Can you also please confirm that at the present time, the HarfBuzz-ng
> code base is *completely unaware* of the fact that U+1A55 TAI THAM
> CONSONANT SIGN MEDIAL RA needs to be "shifted" so that in the visual
> output it *precedes* the base consonant?

Yes, we have not implemented pre-base reordering Ra yet.  It's needed for
Malayalam IIUC, so it's in my plans for the next few weeks.


> i.e., supposing:
> * "K" represents U+1A23 LOW KA
> * "R" represents U+1A55 MEDIAL RA
> * "U" represents U+1A6A VOWEL SIGN UU
> Then if in the logical backstore of the string we have:
> "KRU"
> this needs to appear visually as:
> "RKU"
> ( the "U" is actually a subjoined vowel sign that hangs below the "K"
> but we can't show that in email )
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