I wored out the XSLT Extension stuff, so Now my test transform looks
like this:
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
xmlns:xalan="http://xml.apache.org/xalan";
xmlns:exslt="http://exslt.org/common";
xmlns:dap="http://xml.opendap.org/ns/DAP/3.2#";
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#";
>
<xsl:output method='xml' version='1.0' encoding='UTF-8'
indent='yes'/>
<xsl:variable name="dummy">
<xsl:element name="att:dummy" namespace="{/dap:Dataset/@base}/
att#"/>
</xsl:variable>
<xsl:template match="dap:Dataset" >
<rdf:RDF>
<xsl:copy-of select="exslt:node-set($dummy)//
namespace::*"/>
<xsl:apply-templates />
</rdf:RDF>
</xsl:template>
<xsl:template match="dap:Attribute" >
<xsl:element name="{(_at_)name}" namespace="{/dap:Dataset/@base}/
att#"><xsl:value-of select="." /></xsl:element>
</xsl:template>
</xsl:stylesheet>
And I get this error:
ERROR: 'com.sun.org.apache.xalan.internal.xsltc.TransletException:
org.jdom.IllegalAddException: The namespace xmlns="http://base.document/att#
" could not be added as a namespace to "rdf:RDF": The namespace prefix
"" collides with an additional namespace declared by the element'
org.jdom.transform.XSLTransformException: Could not perform
transformation:
com.sun.org.apache.xalan.internal.xsltc.TransletException:
com.sun.org.apache.xalan.internal.xsltc.TransletException:
org.jdom.IllegalAddException: The namespace xmlns="http://base.document/att#
" could not be added as a namespace to "rdf:RDF": The namespace prefix
"" collides with an additional namespace declared by the element
Which seemed odd until I dump out my dummy element:
<xsl:copy-of select="$dummy"/>
Which produces:
<dummy xmlns="http://base.document/att#"; />
So despite the fact that I assigned a namespace prefix when I created
$dummy, the XSLT processor appears to ignore it.
Nathan
On Nov 13, 2008, at 5:25 PM, Nathan Potter wrote:
I don't understand how to do this thing with node-set. When I try
this:
<xsl:variable name="dummy">
<xsl:element name="att:dummy" namespace="{/dap:Dataset/@base}/
att#"/>
</xsl:variable>
<xsl:template match="dap:Dataset" >
<rdf:RDF>
<xsl:copy-of select="exslt:node-set($dummy)//
namespace::*"/>
<xsl:apply-templates />
</rdf:RDF>
</xsl:template>
I get a "Namespace prefix 'exslt' is undeclared." error when I
compile the stylesheet. Which isn't surprising, since it is missing
and I suspect the crux of this trick is in setting the prefix
correctly.
============================================================
Nathan Potter Oregon State University, COAS
ndp at coas.oregonstate.edu 104 Ocean. Admin. Bldg.
541 737 2293 voice Corvallis, OR 97331-5503
541 737 2064 fax
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