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   RE: [xml-dev] QNames ain't URIs (was QName madness)

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  • To: "Simon St.Laurent" <simonstl@simonstl.com>,"XML DEV" <xml-dev@lists.xml.org>
  • Subject: RE: [xml-dev] QNames ain't URIs (was QName madness)
  • From: "Dare Obasanjo" <dareo@microsoft.com>
  • Date: Thu, 14 Nov 2002 08:00:08 -0800
  • Thread-index: AcKL8rwRod22ZrvhTxOZa2IulKSI/gAA/3Wl
  • Thread-topic: [xml-dev] QNames ain't URIs (was QName madness)

I have to agree with Simon. I am quite puzzled by John's claim that QNames are isomporphic to URIs. 

	-----Original Message----- 
	From: Simon St.Laurent [mailto:simonstl@simonstl.com] 
	Sent: Thu 11/14/2002 7:29 AM 
	Subject: [xml-dev] QNames ain't URIs (was QName madness)

	jcowan@reutershealth.com (John Cowan) writes:
	>QNames are just a minimization practice and
	>concession to the SGML name rules, but semantically they are the same
	>as URIs. 
	Can we drop this bogus claim now?
	QNames are NOT URIs, nor are they "semantically the same" as URIs. 
	URIs have no local name part, and there is no reliable mechanism for
	treating QNames as URIs and vice-versa. 
	URIs are big on fixed schemes and context-independence (though Daniel
	points out the relative URI reference mess that proves excruciating
	periodically) while QNames are all about context-dependence and
	changeable prefixes, without much regard for the scheme in any event.
	How these two even get mentioned in the same breath is puzzling to me,
	as it seems pretty painfully clear at this point that QNames are
	(ab)users of URIs, not something on the same level as URIs.
	Simon St.Laurent - SSL is my TLA
	http://simonstl.com may be my URI
	http://monasticxml.org may be my ascetic URI
	urn:oid: is another possibility altogether
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