From: Petr Tomasek <>
Date: Fri, 19 Aug 2011 17:41:46 +0200

On Fri, Aug 19, 2011 at 04:22:19PM +0100, Michael Everson wrote:
> On 19 Aug 2011, at 16:04, Mark E. Shoulson wrote:
> >> I didn't say that applications or rendering engines are able to accept
> >> your overridden properties and apply them, right out of the box, at
> >> least not today.
> >
> > But they work Just Great for LTR scripts in the PUA, but not for RTL scripts. Isn't that kind of bias counter to the whole point of the PUA and Unicode in general?
> Good point.
> > And it isn't only due to implementors, either: Unicode specifies LTR directionality for the PUA (which is where we came into this discussion in the first place.) Aren't we supposed to do something about that?
> I agree. How much RTL PUA space do you think there should be, Mark?

Just a question: How far is the "Supplementary PUA Area-A" (aka Plane 15) and
"Supplementary PUA Area-B" (aka Plane 16) really used today?

Would it be possible to change the properties of some part of these planes to
RTL or is this "really impossible"?


Petr Tomasek <>
EA 355:001  DU DU DU DU
EA 355:002  TU TU TU TU
EA 355:003  NU NU NU NU NU NU NU
EA 355:004  NA NA NA NA NA
Received on Fri Aug 19 2011 - 10:42:43 CDT

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