Re: [xsl] Global namespace prefixes (Corrected Examples)

[Nathan Potter <ndp@xxxxxxxxxxxxxxxxxxxx>]

This is a much simplified example from a larger more complex situation.

I cannot solve this by making the namespace the default namespace.

On Nov 13, 2008, at 3:35 PM, David Carlisle wrote:

> > And it works. Output:
> >
> > <?xml version="1.0" encoding="UTF-8"?>
> > <output xmlns:dap="http://xml.opendap.org/ns/DAP/3.2#";>
> >   <ns0:Conventions xmlns:ns0="http://base.document/att#";>CF-1.0</
>
>
>
> I'm surprised by those prefixes. An XSLT 1 processor is given a lot of
> freedom to change prefixes at will, but most do not do so unless  
> forced
> to do so to avoid a namespace clash.
>
> saxon6 (the old xslt 1 version of saxon)
>
> produces
>
>
> $ saxon mns.xml mns.xsl
> <?xml version="1.0" encoding="UTF-8"?>
> <output xmlns:dap="http://xml.opendap.org/ns/DAP/3.2#";>
>
>   <Conventions xmlns="http://base.document/att#";>CF-1.0</Conventions>
>
>   <logname xmlns="http://base.document/att#";>olson</logname>
>
>   <host xmlns="http://base.document/att#";>bb0001en</host>
>
> </output>
>
>
> In XSLT2 the system wuld have to generate unprefixed names in this
> context and saxon9 produes the same result:
>
>
> $ saxon9 mns.xml mns.xsl
> Warning: at xsl:stylesheet on line 5 column 9 of mns.xsl:
>  Running an XSLT 1.0 stylesheet with an XSLT 2.0 processor
> <?xml version="1.0" encoding="UTF-8"?>
> <output xmlns:dap="http://xml.opendap.org/ns/DAP/3.2#";>
>    <Conventions xmlns="http://base.document/att#";>CF-1.0</Conventions>
>    <logname xmlns="http://base.document/att#";>olson</logname>
>    <host xmlns="http://base.document/att#";>bb0001en</host>
> </output>
>
>
> Note that while no prefixes are generated the namespace declaration  
> does
> appear multiple times as there is no parent element with the same
> namespace. If the element <output> was placed in the namespace  
> instead of
> no-namespace then the namespace would only need to be declared once.
>
>
> If I change the stylesheet to
>
> <?xml version="1.0" encoding="UTF-8"?>
> <xsl:stylesheet version="1.0"
>       xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
>       xmlns:dap="http://xml.opendap.org/ns/DAP/3.2#";
> >
>    <xsl:output method='xml' version='1.0' encoding='UTF-8'
> indent='yes'/>
>
>    <xsl:template match="dap:Dataset" >
>         <xsl:element name="output" namespace="{/dap:Dataset/@base}/ 
> att#">
>             <xsl:apply-templates />
> 	 </xsl:element>
>    </xsl:template>
>
>    <xsl:template match="dap:Attribute" >
>        <xsl:element name="{@name}"
> namespace="{/dap:Dataset/@base}/att#"><xsl:value-of select="." /></ 
> xsl:element>
>    </xsl:template>
>
> </xsl:stylesheet>
>
> I get
>
>
> $ saxon mns.xml mns.xsl
> <?xml version="1.0" encoding="UTF-8"?>
> <output xmlns="http://base.document/att#";>
>
>   <Conventions>CF-1.0</Conventions>
>
>   <logname>olson</logname>
>
>   <host>bb0001en</host>
>
> </output>
>
>
> David
>
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============================================================
Nathan Potter                 Oregon State University, COAS
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