From: Kenneth Whistler (email@example.com)
Date: Mon Feb 24 2003 - 16:44:42 EST
Frank Tang asked:
> I am working on update the Mozilla UTF-8 code to incooperate the change
> of UTF-8 definitation in Unicode 3.1 (make non-shortest form illegal,
> and make 5-6 octets illegal) and Unicode 3.2 (make irregular form
> illegal) now. I wonder do have any change of the UTF-8 definitation from
> Unicode 3.2 to unicode 4.0? If we have, I would like to know that eariler.
And the answer is no, there is no further change in the definition
of UTF-8 from Unicode 3.2 to Unicode 4.0.
There is considerable change to the text of the normative
part of the standard, to systematically incorporate the changes
to UTF-8, and to put UTF-8, UTF-16, and UTF-32 on an equal
footing in the text, but there is no further substantive
change in the definition of UTF-8 past the changes documented
in UAX #28 for Unicode 3.2.
In particular, all the legal UTF-8 byte sequences documented
in Table 3.1B in Unicode 3.2 are incorporated exactly the same
way in the corresponding table in Unicode 4.0.
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