From: Philippe Verdy <>
Date: Sun, 21 Aug 2011 11:16:07 +0200

2011/8/21 Jonathan Rosenne <>:
> 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 - 04:19:06 CDT

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