RE: [xsl] XSL:Copy w/ Processing Optimization Suggestions

["Michael Kay" <mhk@xxxxxxxxx>]

> Here's what I'm currently doing:
> XSL:
> <?xml version="1.0"?>
> <xsl:stylesheet version="1.0" xmlns:xsl 
> ="http://www.w3.org/1999/XSL/Transform";>
>   <xsl:output method="xml" />
> 
>   <xsl:template match="/">
>     <xsl:apply-templates />
>   </xsl:template>
> 
>   <xsl:template match="*|@*|processing-instruction()|text()">
>     <!-- This seems to be the worst part.  I'm doing string 
> comarisons on the node name on every node in the tree.  
> That's gotta be bad... -->
>     <xsl:if test="not(name()='Part') or 
> (contains(@DisplayValue,'BM5125') )">
>       <xsl:copy>
>         <xsl:apply-templates 
> select="*|@*|processing-instruction()|text()">
>           <xsl:sort order="ascending" select="@DisplayValue" />
>         </xsl:apply-templates>
>       </xsl:copy>
>     </xsl:if>
>   </xsl:template>

Firstly, you can use copy-of rather than apply-templates to process the
attributes.

You can use a direct nametest rather than a string comparison on the
name, and if your data is to be believed, you can use starts-with rather
than contains. You can also use template rules rather than xsl:if to
distinguish the two kinds of processing to be performed

   <xsl:template match="*">
       <xsl:copy-of select="@*"/>
       <xsl:copy>
         <xsl:apply-templates/> 
       </xsl:copy>
   </xsl:template>

   <xsl:template match="Part[not(starts-with(@DisplayValue,
'BM5125'))]"/>

Michael Kay
Software AG
home: Michael.H.Kay@xxxxxxxxxxxx
work: Michael.Kay@xxxxxxxxxxxxxx 


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