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Re: Specifying a Unicode subset

• To: gustaf.liljegren@x... (Gustaf Liljegren)
• Subject: Re: Specifying a Unicode subset
• From: John Cowan <jcowan@r...>
• Date: Tue, 22 Oct 2002 06:34:39 -0400 (EDT)
• Cc: xml-dev@l..., tblanchard@m...
• In-reply-to: <3.0.6.32.20021022121226.011fdae8@m...> from "Gustaf Liljegren" at Oct 22, 2002 12:12:26 PM

Gustaf Liljegren scripsit:

> This way, those who need to use characters in the intervals forbidden in
> XML 1.0 would have the freedom to use them, while the rest of us are left
> unaffected.

The 65 ISO controls that are forbidden are (all but one) representable
as character references.  The point of forbidding them is to improve
character-encoding detection in a world where most documents are
not Unicode-encoded.  For example, because U+0080 is forbidden, a
Windows-1252 document mislabeled as Latin-1 will cough on the Euro
sign, because it will incorrectly be mapped to U+0080 instead of the
correct U+20AC.  This is a Good Thing.

> If I'd decide, there would be no change in XML. But if a new version is
> unavoidable and I need to pick one, I'd rather go for a more flexible
> solution, because I fear that 1.1 won't be the last version of its kind.

I believe that 1.1 will be the last release related purely to characters.
If there is an XML 2.0, it will be about entirely different issues.

-- 
Some people open all the Windows;       John Cowan
wise wives welcome the spring           jcowan@r...
by moving the Unix.                     http://www.reutershealth.com
  --ad for Unix Book Units (U.K.)       http://www.ccil.org/~cowan
        (see http://cm.bell-labs.com/cm/cs/who/dmr/unix3image.gif)

• References:
  • Re: Specifying a Unicode subset
    • From: Gustaf Liljegren <gustaf.liljegren@x...>

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