From: Kenneth Whistler (kenw@sybase.com)
Date: Mon Jun 26 2006 - 16:40:33 CDT
> > One essential detail being that UTF-16 surrogates are excluded
> > from the valid Unicode codepoints, while UTF-8 "surrogates"
> > have binary values that are also valid Unicode codepoints.
>
> I almost added that but held back because it seemed to me that that's
> not really a difference in these encoding forms but rather is just a
> fact about the coded character set. But then, IIRC UTF-16 is not able to
> represent code points U+D800..U+DFFF while UTF-8 is.
Nope. Neither can.
0xD800 is ill-formed in UTF-16.
0xED 0xA0 0x80 is ill-formed in UTF-8.
For that matter, 0x0000D800 is ill-formed in UTF-32.
Look it up.
Now, anybody could put those values into a Unicode string
and claim to be representing U+D800, but as a famous
former president said, they "would be wrong." *hehe*
--Ken
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