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- From: Miles Sabin <firstname.lastname@example.org>
- To: "'email@example.com'" <firstname.lastname@example.org>
- Date: Wed, 3 Mar 1999 12:37:00 -0000
Sorry to follow up my own posting, but one thing needs a
bit of clarification, and one typo needs correction.
> David Brownell wrote,
> > Put it this way: if you assume UTF-16, you're
> > safe either way because UTF-16 is a superset.
> Err ... is that true?
> Maybe I'm being a bit obsessive about my
> interpretation of the various standards docs, but
> as far as I can see UCS-2 isn't a subset of
The question of UCS-2 being, or not being a subset of
UTF-16 is a bit of a red herring. It is undoubtedly true
that the set of octet pairs which are legal UCS-2
characters is a subset of the set of octet pairs which
are legal UTF-16 characters.
Appendix F suggests that octet sequences which could
equally well be interpreted as UTF-16 or UCS-2 may be
assumed to be UTF-16, and *doesn't* include a clause
stating that this assumption should be revised in
the light of an explicit XML encoding declaration. I
think that clause should be added, in much the same
way as it is for UTF-8 vs. 8859-X.
Now the typo ...
> This very complicated and isn't a zillion miles away
> from the current handling of UTF-8 vs. ISO 8859-x
> vs. US-ASCII.
Please insert the word 'isn't' in the obvious
Miles Sabin Cromwell Media
Internet Systems Architect 5/6 Glenthorne Mews
+44 (0)181 410 2230 London, W6 0LJ
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