RE: [xsl] Namespaces and template matching

["David P. Nesbitt" <dnesbitt@xxxxxxxxxxxxx>]

Dave,

Thank you.  Your code worked exactly the way I wanted it to and I don't
see any code like this in Dave Pawson's FAQ.  You have been a tremendous
help.  Thanks again.

Regards,
Dave

> -----Original Message-----
> From: David N Bertoni/Cambridge/IBM 
> [mailto:david_n_bertoni@xxxxxxxxxx]
> Sent: Thursday, November 07, 2002 9:19 PM
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject: Re: [xsl] Namespaces and template matching
> 
> 
> 
> 
> 
> 
> > I am struggling with doing a template match when namespaces are
> > involved.
> >
> > I have the following stylesheet which renames any 'x' 
> element to 'y':
> >
> > <?xml version='1.0' encoding='UTF-8'?>
> > <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
> > version="1.0">
> >    <xsl:template match="x">
> >       <xsl:element name="y">
> >          <xsl:apply-templates select="@*"/>
> >          <xsl:apply-templates/>
> >       </xsl:element>
> >    </xsl:template>
> >    <xsl:template match="@*|node()">
> >       <xsl:copy>
> >          <xsl:apply-templates select="@*"/>
> >          <xsl:apply-templates/>
> >       </xsl:copy>
> >    </xsl:template>
> > </xsl:stylesheet>
> >
> 
> ...
> 
> >
> > <?xml version="1.0" encoding="UTF-8"?>
> > <a>
> >    <x a="1" b="2" c="3" d="4" />
> > </a>
> >
> 
> ...
> 
> >
> > <?xml version="1.0" encoding="UTF-8"?>
> > <a xmlns="b">
> >    <x a="1" b="2" c="3" d="4" />
> > </a>
> 
> I'm sure this is a FAQ.  You're matching elements named "x" 
> which have a
> null namespace URI. Your second document contains an element x, but,
> because it has no prefix, and there's a default namespace, 
> it's namespace
> URI is "b", so the template doesn't match.  However, the 
> second template
> matches (which defines an identity transformation), so the document is
> copied.
> 
> If you want to match "x" elements with a namespace URI of 
> "b", you should
> define a template that matches them:
> 
> <?xml version='1.0' encoding='UTF-8'?>
> <xsl:stylesheet
>   xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
>   xmlns:foo="b"
>   version="1.0">
> 
>    <xsl:template match="foo:x">
>       <xsl:element name="y">
>          <xsl:apply-templates select="@*"/>
>          <xsl:apply-templates/>
>       </xsl:element>
>    </xsl:template>
> 
> ...
> 
> If you want to match all elements with a local name of "x", 
> you could do
> the following:
> 
>    <xsl:template match="*[local-name() = 'x']">
>       <xsl:element name="y" namespace="{namespace-uri()}">
>          <xsl:apply-templates select="@*"/>
>          <xsl:apply-templates/>
>       </xsl:element>
>    </xsl:template>
> 
> Note this template is also creating the "y" element in the 
> same namespace
> as the "x" element.  Whether or not that's appropriate is
> application-specific, but if you leave it out, you're liable 
> to get results
> which might puzzle you.
> 
> Hope that helps...
> 
> Dave
> 
> 
>  XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list
> 
> 

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