Re: Namespace Identifiers - URI, URN, URL?

On Wed, Aug 29, 2001 at 07:25:12AM -0400, Hewko, Doug wrote:
> We all know the prolog of our XSL documents look something like this;
> 
> <?xml version="1.0" ?>
> <xsl:stylesheet xmlns:xsl="http://www.w3.org/TR/WD-xsl">
> 

Someone who still uses the MSXSL dialect :)

> Does the namespace 'xmlns:xsl="http://www.w3.org/TR/WD-xsl"' actually refer
> to a URL or is this an alias that is contained within my XML parser? I can
> not disable my internet connection from work, so I can not test whether when
> I open my XSL document, if "www.w3.org/TR/WD-xsl" is actually being
> referenced or if not. 
> 

You don't seem to understand how XML Namespaces really work.  Read
http://www.jclark.com/xml/xmlns.htm for an explanation of what the URI
in a namespace declaration is for and what it signifies.

Short answer: it doesn't need to point to anything.  It's just an
identifier that identifies the namespace you're using.  By the way,
you should really be using "http://www.w3.org/1999/XSL/Transform"
instead of "http://www.w3.org/TR/WD-xsl".  That refers to an older,
deprecated version of the standard which nobody but microsoft has an
interest in supporting.

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