From: Deborah Goldsmith (goldsmit@apple.com)
Date: Wed Feb 04 2004 - 16:20:16 EST
On Feb 2, 2004, at 9:20 PM, Dean Snyder wrote:
> I hope Apple re-thinks this, because it makes PUA useless in plain
> text.
Doing font substitution on PUA code points was causing problems,
because we have found a lot of fonts have garbage entries in their
cmaps in the PUA, due to the implementation details of certain
font-editing applications (which use the PUA part of the cmap as a
"scratch" area). The system was basically picking a random font in many
cases. Rather than have a font substitution mechanism that picks a
random font, we disabled font substitution for PUA characters.
I agree this causes problems for things like file names in the Finder,
but I worry whether that is an appropriate use of PUA characters. When
Cuneiform is encoded, all these file names will have to be reentered.
Deborah Goldsmith
Manager, Fonts / Unicode liaison
Apple Computer, Inc.
goldsmit@apple.com
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