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RE: default namespace in constructed element

From: Michael Kay <mhk@mhk.me.uk>
Date: Tue, 21 Dec 2004 17:57:37 -0000
To: "'Bas de Bakker'" <bas@x-hive.com>, <www-ql@w3.org>
Message-ID: <E1CgoH8-0005ke-Cs@frink.w3.org>

Yes, I missed that. In fact, managing source and result documents with
different default namespaces is really quite difficult in XQuery.

Michael Kay
http://www.saxonica.com/ 

> -----Original Message-----
> From: www-ql-request@w3.org [mailto:www-ql-request@w3.org] On 
> Behalf Of Bas de Bakker
> Sent: 21 December 2004 11:55
> To: www-ql@w3.org
> Subject: RE: default namespace in constructed element
> 
> 
> But (according to section 3.7.1.2 of the current XQuery WD) the
> namespace declaration does change the default namespace for the
> constructor expression.  Therefore, the path expression will look for
> elements "a" in the namespace "www.xyz.com" and return the empty
> sequence.  In other words, the element will not be inserted at all.
> 
> Bas de Bakker
> X-Hive Corporation
> 
> > -----Original Message-----
> > From: www-ql-request@w3.org 
> [mailto:www-ql-request@w3.org]On Behalf Of
> > Michael Kay
> > Sent: Tuesday, December 21, 2004 12:03
> > To: 'Leonid Novak'; www-ql@w3.org
> > Subject: RE: default namespace in constructed element
> > 
> > 
> > 
> > No, it shouldn't change the namespace URI of element <a>. 
> The element
> > selected within the {} is copied unchanged - that means it 
> retains its
> > original name (both the local name and the namespace URI). 
> In order to
> > achieve this, the system will probably need to generate an xmlns=""
> > namespace undeclaration when the result tree is serialized.
> > 
> > Michael Kay
> > http://www.saxonica.com/ 
> > 
> > > -----Original Message-----
> > > From: www-ql-request@w3.org [mailto:www-ql-request@w3.org] On 
> > > Behalf Of Leonid Novak
> > > Sent: 21 December 2004 09:06
> > > To: www-ql@w3.org
> > > Subject: default namespace in constructed element
> > > 
> > > 
> > > Consider, we have the document a.xml: <?xml version="1.0"?><a/>
> > > 
> > > and the following expression:
> > > 
> > > <b xmlns="www.xyz.com">{doc("a.xml")//a}</b>
> > > 
> > > I'm puzzled about the result of the expression: i.e should 
> > the default
> > > namespace declaration change the URI of  the insereted 
> > > element from document
> > > "a.xml" or not?
> > > 
> > > Regards, Leonid Novak
> > > www.modis.ispras.ru
> > > 
> > > 
> > > 
> > > 
> > 
> > 
> > 
> 
> 
Received on Tuesday, 21 December 2004 17:58:22 UTC

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