• To: xml-dev@l...
• Subject: Re: Use of UTF-8 and UTF-16
• From: richard@i... (Richard Tobin)
• Date: Wed, 2 Nov 2005 16:34:34 +0000 (GMT)
• Cc:
• In-reply-to: <4368C783.3070008@s...>
• Organization: HCRC, University of Edinburgh

In article <4368C783.3070008@s...> you write:
>UTF-8 uses 6 bytes for ISO/IEC 10646
>UTF-8 uses 4 bytes for Unicode

UTF-8 would need 6 bytes to represent code points up to 2^31-1, but
the Unicode codespace only goes to 10ffff, so only 4 bytes are needed
for Unicode characters.  10ffff is (presumably not coincidentally) the
limit of what UTF-16 can represent using surrogates.

-- Richard

• References:
  • Re: Use of UTF-8 and UTF-16
    • From: Philippe Poulard <Philippe.Poulard@s...>

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