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Re: Unicode character read representation

From: Harald Hanche-Olsen
Subject: Re: Unicode character read representation
Date: Sat, 21 Feb 2009 15:22:44 +0100 (CET)

+ Chong Yidong <address@hidden>:

> From objects.texi in the Lisp manual:
>   `\U00NNNNNN' represents the character whose Unicode code point is
>   `U+NNNNNN', if such a character is supported by Emacs.  If the
>   corresponding character is not supported, Emacs signals an error.
> Are there any Unicode code points not supported by Emacs, or is this
> sentence obsolete?

I don't know the answer to your question, but it appears to me that
some code points SHOULD not be supported. The most famous example
being U+FFFE, which is why U+FEFF ZERO WIDTH NO-BREAK SPACE is useful
as a byte-order mark. (But Emacs reads "\0000FFFE" just fine. A bug?)

- Harald

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