Yes, this is why an RTL etc. PUA area is quite useful. BTW, I am not aware of joining in properly written cursive Hebrew.
Jony > -----Original Message----- > From: [email protected] [mailto:[email protected]] On Behalf Of Philippe > Verdy > Sent: Sunday, August 21, 2011 12:16 PM > To: Jonathan Rosenne > Cc: unicore UnicoRe Discussion; Unicode Discussion List > Subject: Re: RTL PUA? > > 2011/8/21 Jonathan Rosenne <[email protected]>: > > Several RTL scripts do not require shaping nor ligatures. > > Yes but they still require BiDi reordering by the layout engine... > Something that is not specified by OpenType fonts because it is > implicit (and in fact mandatory) for the known RTL scripts assigned in > non-PUA blocks. > > I think you were meaning that those RTL scripts do not require the > joining behavior for selection of contextual shapes (and after all > this is how the basic unpointed Hebrew script behaves in its usual > non-cursive styles : it still requires at least the implicit BiDi > reordering by the layout engine, but not by specifications found in > Hebrew fonts). > > -- Philippe.

