On 19 Aug 2011, at 15:57, Doug Ewell wrote:
> Most applications don't care about the PUA, or assume it's only for that particular vendor's custom Latin-script ligatures and dictionary symbols.
And guess what: since my ligatures and dictionary symbols are LTR, I have no problem because the applications assume LTR directionality, just as they should.
> But you are certainly able to define the properties, and doing so is the conformant thing to do.
Directionality is a very deep property. A CSUR LTR script works fine out of the box on all platforms at least as far as directionality goes. A CSUR RTL script simply can't, and do you really think that "defining the properties" will effectively override the system-level expectations for LTR PUA on multiple platforms?
Very very very unlikely.
Michael Everson * http://www.evertype.com/
Received on Fri Aug 19 2011 - 10:22:19 CDT
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