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EXI: False Distinguishing Bits claim

From: Bjoern Hoehrmann <derhoermi@gmx.net>
Date: Sat, 21 Jul 2007 22:04:29 +0200
To: public-exi@w3.org
Message-ID: <ccp4a31ek4vavi3lh3504s8s117rpv1fuv@hive.bjoern.hoehrmann.de>

Dear Efficient XML Interchange Working Group,

  http://www.w3.org/TR/2007/WD-exi-20070716/#DistinguishingBits claims: 

  This bit sequence cannot occur as the first two bits of a well-formed
  XML document and represents the minimum length EXI document prefix
  required to distinguish EXI documents from XML documents.

This is false, the XML Recommendations do not place any restrictions on
the binary represention of well-formed XML documents, I might well come
up with a character encoding where any sequence of bytes maps to <?xml
version='1.0' encoding='x-myencoding'?><x/>. This would not violate the
XML Recommendation's requirements in any way. The paragraph after the
one quoted above is more accurate, I would suggest to remove the former.

regards,
-- 
Björn Höhrmann · mailto:bjoern@hoehrmann.de · http://bjoern.hoehrmann.de
Weinh. Str. 22 · Telefon: +49(0)621/4309674 · http://www.bjoernsworld.de
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Received on Saturday, 21 July 2007 20:05:43 GMT

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