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>My problem is that if I'm given a few different parameters, how can I easily >and efficiently build an XSL search pattern that accounts for various >positioning within the XML structure? XSLT doesn't allow XPath queries to be constructed dynamically, so this is a bit difficult. (Saxon has an extension to do this called saxon:evaluate()). One thing you could use is a sequence of filter steps: <xsl:variable name="v1" select="//client"/> <xsl:variable name="v2" select="$v1[not($name)] | $v1[$name and $name=@name]"/> <xsl:variable name="v3" select="$v2[not($version)] | $v1[$version and $version=@name]"/> The union expression here really acts as a conditional expression: if $version is null, it selects the first operand, otherwise it selects the second. >but can I use a series of $and$ directives Only just spotted that. The reference to $and$ suggests you are not using XSL, but the-language-that-Microsoft-refer-to-as-XSL. So ignore everything I wrote until now, it's a different language. Mike Kay *************************************************************************** This is xml-dev, the mailing list for XML developers. To unsubscribe, mailto:majordomo@x...&BODY=unsubscribe%20xml-dev List archives are available at http://xml.org/archives/xml-dev/ ***************************************************************************
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