From: Mike (mike-list@pobox.com)
Date: Sun Jan 21 2007 - 12:56:26 CST
>> This problem is already solved, using noncharacters: the last two
>> characters of each plane and U+FDD0..U+FDEF. See TUS 5, section 16.7,
>> page 549, or TUS 4, section 15.7, page 398.
>
> Well, apparently, 32 code points are not enough for all applications, since many still insist on using PUA code points for their internal purposes.
When I implemented collation, I needed to define code points for
the various contractions that can occur. To avoid clashing with
any private use code points, I chose to start allocating the con-
tractions at 0x110000. This has worked quite nicely.
Mike
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