[HarfBuzz] Post Base Substitution fails with Malayalam repha

[Behdad Esfahbod]

On 13-09-13 11:28 AM, Suresh P wrote:
> As Rejeesh pointed out this happens with any traditional lipi font. I am not
> aware of what Uniscribe does with it. Meanwhile, if the reph postion flag for
> Malayalam changed to REPH_POS_AFTER_POST from REPH_POS_AFTER_MAIN ( in
> hb-ot-shape-complex-indic.cc ) the problem disappears!. But then it is moved
> even after the post base matra which is undesirable, too.

What we do is consistent with what Uniscribe does, and hence will not change.

All you need to do is to mark your GSUB ligatures to skip above-marks,
including dot-reph.  That's quite well-known.

-- 
behdad
http://behdad.org/