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Re: UTF-8 & Unicode

From: Henri Sivonen <hsivonen@---.-->
To: NULL
Date: 2/4/2005 5:15:00 PM
In article <Pine.LNX.4.61.0502021006440.5995@p...>,
 "Alan J. Flavell" <flavell@p...> wrote:

> The /conclusions/ are fine, in their way:
> 
>     * Use an editor that supports encoding.
>     * Make sure you know what encoding it uses.
>     * Use the same encoding attribute in your XML documents.

That is not a safe conclusion. XML processors are only required to 
support UTF-8 and UTF-16. Support for any other encoding is an XML 
processor-specific extra feature. It follows that using any encoding 
other than UTF-8 or UTF-16 is unsafe. If communication fails, because 
someone sent an XML document in an encoding other than UTF-8 or UTF-16, 
the sender is to blame.

This simplifies to a rule of thumb:
When producing XML, always use UTF-8 (and Unicode Normalization Form C). 
Those who absolutely insist on using UTF-16 can use UTF-16 instead of 
UTF-8.

-- 
Henri Sivonen
hsivonen@i...
http://iki.fi/hsivonen/
Mozilla Web Author FAQ: http://mozilla.org/docs/web-developer/faq.html


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