Re: [xsl] Creating namespace declarations solely for QName attribute values

[Jeff Greif <jeff.greif@xxxxxxxxx>]

No, I was trying to use XSLT 1.0.  Is this possible?

It's easy to do it with a DOM traversal, but XSLT is supposed to be 
Turing complete, isn't it.

Jeff

Michael Kay wrote:
> Are you using XSLT 2.0? The xsl:namespace instruction was invented to make
> this kind of job easier.
>
> Michael Kay
> http://www.saxonica.com/
>  
>
>   
> > -----Original Message-----
> > From: Jeff Greif [mailto:jeff.greif@xxxxxxxxx] 
> > Sent: 16 October 2008 22:45
> > To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> > Subject: [xsl] Creating namespace declarations solely for 
> > QName attribute values
> >
> > We are trying to replace namespaces consistently in the 
> > namespace declarations of a document, thus preserving the 
> > prefixes so the QName attribute values remain valid.
> >
> > That is, given a source document like this:
> >
> > <schema targetNamespace="urn:target" xmlns:t="urn:target"
> > xmlns:i="urn:imported">
> >  <import namespace="urn:imported"/>
> >  <element name="something" type="i:ImportedType"/> </schema>
> >
> > The key feature of this document is that no element or 
> > attribute in the document is in either of the explicitly 
> > declared namespaces.
> > These namespaces are only referenced explicitly in attribute 
> > values and implicitly in the QName-valued attribute 'type'.
> >
> > The idea is to change urn:target to urn:target1 and urn:imported to
> > urn:imported1 (based on a map of these conversions read into 
> > the XSLT using the document() function).  None of the 
> > namespaces involved in this conversion can be declared in the 
> > stylesheet, but are determined from the map.
> >
> > We know how to change the value of any attribute, the 
> > namespace of any element or attribute using this map, but we 
> > don't see yet how to change the association of a prefix with 
> > a namespace, so that the prefix 'i' will be associated with 
> > the namespace "urn:imported1" in the result document, 
> > effectively changing the namespace implied by the value of 
> > the 'type' attribute in the result document, *when there is 
> > no element or attribute in the source document that has the 
> > namespace corresponding to that prefix*.
> >
> > We are trying to avoid having to know which are attributes 
> > with QName values and having to transform their values to 
> > somehow conform to prefixes used in the result doc.
> >
> > Is there a way to do this in XSLT, given that matching on 
> > namespace nodes is not possible, and we have been unable to 
> > find a way to create namespace nodes in a template except by 
> > naming an element or attribute using the prefix in question?  
> > Would a solution involve creating an attribute with the given 
> > prefix and namespace, to change the namespace nodes of the 
> > containing element, while avoiding having the attribute 
> > appearing in the result document?
> >
> > Jeff