RE: [xsl] Identity transformation (without using xsl:copy)

Subject: RE: [xsl] Identity transformation (without using xsl:copy)
From: "Sullivan, Dan" <dsullivan@xxxxxxxxxxx>
Date: Sun, 31 Mar 2002 09:15:38 -0800
These two xslt files do what I think you want:

file: identity.xslt

<xsl:stylesheet version="1.0" 
 xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
<xsl:template match="node()|@*">
	<xsl:copy>
		<xsl:apply-templates select="node()|@*"/>
	</xsl:copy>
</xsl:template>
</xsl:stylesheet>


file: identEleToUpper.xslt

<xsl:stylesheet version="1.0"
 xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
<xsl:import href="identity.xslt"/>
<xsl:output indent="yes"/>
<xsl:strip-space elements="*"/>
<xsl:template match="*" >
	<xsl:element name="{translate(local-name(),
	 'abcdefghijklmnopqrstuvwxyz', 
	 'ABCDEFGHIJKLMNOPQRSTUVWXYZ')}"
		namespace="{namespace-uri()}">
		<xsl:apply-templates select="node()|@*"/>
	</xsl:element>
</xsl:template>
</xsl:stylesheet>


You could put the identity transform in identToUpper by setting the priority of the match="*" template.

Dan


-----Original Message-----
From: Roger L. Costello [mailto:costello@xxxxxxxxx]
Sent: Sunday, March 31, 2002 11:03 AM
To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx; costello@xxxxxxxxx
Subject: Re: [xsl] Identity transformation (without using xsl:copy)


A few weeks ago I posted a message (below) asking how to do an identity
transformation (without using <xsl:copy>) on instance documents that
contain namespace declarations.  The resounding response was "no way".
[Thanks for your input!]  Okay, after much testing and reading I have
convinced myself that you are correct - <xsl:copy> must be used.  It
seems to me that this puts some serious limits on XSLT.  Consider this
simple problem:  write a stylesheet which does an identity
transformation, but where all element (local) names are converted to
upper case.  For example:

If this is the start document:

<?xml version="1.0"?>
<j:juicers xmlns:j="http://www.juicers.org";>
     <j:juicer id="omega">
         <name xmlns="http://www.names.org";>
             Mighty Omega Juicer
         </name>
     </j:juicer>
</j:juicers>

Then this should be the result document:

<?xml version="1.0"?>
<j:JUICERS xmlns:j="http://www.juicers.org";>
     <j:JUICER id="omega">
         <NAME xmlns="http://www.names.org";>
             Mighty Omega Juicer
         </NAME>
     </j:JUICER>
</j:JUICERS>

If I could use <xsl:element> then I could easily accomplish this
transformation.  However, it escapes me how to do it if I am forced to
use <xsl:copy>.  

The more general question is: if I use <xsl:copy> to copy over an input
tree to an output tree how can I make modifications to elements names
(such as converting the local part to upper case, as shown above), and
modifications to each element's (non-namespace declaration) attributes? 
Thanks!  /Roger

"Roger L. Costello" wrote:
> 
> Does anyone have a stylesheet which does an identity transformation
> without using xsl:copy?  The below stylesheet works fine provided the
> instance document does not use namespaces, e.g., it does not copy over
> the namespace declarations, and it results in an error being generated
> when an element is encountered that is explicitly namespace-qualified.
> Could someone show me how to enhance this to deal properly with
> namespaces?  Thanks!  /Roger
> 
> identity.xsl
> 
> <?xml version="1.0"?>
> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
>                 version="1.0">
> 
>     <xsl:output method="xml"/>
> 
>     <xsl:template match="*">
>         <xsl:element name="{name(.)}">
>             <xsl:for-each select="@*">
>                 <xsl:attribute name="{name(.)}">
>                     <xsl:value-of select="."/>
>                 </xsl:attribute>
>             </xsl:for-each>
>             <xsl:apply-templates/>
>         </xsl:element>
>     </xsl:template>
> 
> </xsl:stylesheet>
> 
>  XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list


 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list


 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list


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