RE: RTL PUA?

From: Jonathan Rosenne <jonathan.rosenne_at_gmail.com>
Date: Sun, 21 Aug 2011 12:43:43 +0300

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: verdyp_at_gmail.com [mailto:verdyp_at_gmail.com] 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 <jonathan.rosenne_at_gmail.com>:
> > 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.
Received on Sun Aug 21 2011 - 04:46:37 CDT

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