Subject: Re: [xsl] Select value by position From: David Carlisle <davidc@xxxxxxxxx> Date: Tue, 29 Aug 2006 11:38:22 +0100 |
> Thanks for any tips how to improve performance.. > <xsl:variable name="identifier"> > <xsl:value-of select="normalize-space(dc:identifier)"/> > </xsl:variable> Never use an xsl:variable with content like this unless you really need to generate a new result tree fragment 9which is essentially a new node tree with a root node (/) a text node with string value. that's expensive to build and has to be coersed back to a string when used. You just want a string here so <xsl:variable name="identifier"> select="normalize-space(dc:identifier)"/> which is less code to type and a lot more efficient (athough in this case you don't really need a variable at all). In xslt1 that will use the first dc:identifier, in xslt2 it will generate an error that there is more than one. Tou sie the second you can use <xsl:variable name="identifier"> select="normalize-space(dc:identifier[2])"/> or [last()] or whatever predicate you need to specify. <rdf:Description> <xsl:attribute name="rdf:about"><xsl:value-of select="$identifier"/></xsl:attribute> could be written more simply as <rdf:Description rdf:about="{$identifier}"> or just inline the variable if it is only used once: <rdf:Description rdf:about="{normalize-space(dc:identifier[2]}"> David
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