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Re: Are there standard namespaces that don't need URIs?

From: Martin Honnen <mahotrash@-----.-->
To: NULL
Date: 2/3/2007 3:33:00 PM

Grant Robertson wrote:
> As I am learning about XML I seen that xmlns is used with a colon after 
> it as if it were a namespace itself. However, I have never seen a URI 
> given for it. Is "xmlns" a sort of predefined word in that all XML 
> software just knows what it means without it needing a URI?

The relevant specification is the "Namespaces in XML 1.0" specificaton:
   <http://www.w3.org/TR/xml-names/>
You will see that <http://www.w3.org/TR/xml-names/#ns-decl> reserves a 
family of attributes for namespace declaration, namely either 'xmlns' or 
a qualified name beginning with 'xmlns:'.
   <element xmlns="http://example.com/ns1">
is a default namespace declaration.
So any namespace aware XML parser "knows" the meaning of xmlns and 
xmlns:some-prefix attributes as declaring XML namespaces.

-- 

	Martin Honnen
	http://JavaScript.FAQTs.com/

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