I'm still concerned about the SHRII ligature encoding, though. Of course, it makes sense to treat the ligature as a conjunct of SHA + RA + II, but since SA + RA + II seems to have been the "official" way to encode the ligature -- the proposed change will break existing implementations.
That's the price of disunification. But it's the right thing to do.
It might be best to add the new SHA character without changing the existing SHRII encoding (SA + RA + II).
That would be incorrect, however. -- Michael Everson * * Everson Typography * * http://www.evertype.com

