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  1. PO
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    <p>Here is my solution, with hopefully helpful comments. It works with your example but you may have more specific requirements this doesn't take into account. Still, I hope it will be useful to you.</p> <p>The following XSLT stylesheet:</p> <pre><code>&lt;xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"&gt; &lt;xsl:output method="html"/&gt; &lt;xsl:param name="id" select="'id:144016'"&gt;&lt;/xsl:param&gt; &lt;xsl:param name="query_string" select="'year=2012&amp;amp;month=12'"/&gt; &lt;!-- Match the siteMapNode element at depth 1 with the specified id. Just apply templates to its children. --&gt; &lt;xsl:template match="siteMapNode[@id=$id and @depth='1']" priority="5"&gt; &lt;xsl:apply-templates select="node()|@*"/&gt; &lt;/xsl:template&gt; &lt;!-- Match the siteMapNode element with the specified id that partially match the query string. These will have child elements so apply templates and keep going. --&gt; &lt;xsl:template match="siteMapNode[@id=$id and contains($query_string, @query_string)]" priority="1"&gt; &lt;li class="active"&gt; &lt;xsl:call-template name="anchor"/&gt; &lt;ul&gt; &lt;xsl:apply-templates select="node()|@*"/&gt; &lt;/ul&gt; &lt;/li&gt; &lt;/xsl:template&gt; &lt;!-- Match the siteMapNode element with the specified id that completely match the query string. --&gt; &lt;xsl:template match="siteMapNode[@id=$id and $query_string=@query_string]" priority="10"&gt; &lt;li class="active icon-nav-left"&gt; &lt;xsl:call-template name="anchor"/&gt; &lt;/li&gt; &lt;/xsl:template&gt; &lt;!-- Match the remaining siteMapNode elements with the specified id. This template has the default priority of 0.5. --&gt; &lt;xsl:template match="siteMapNode[@id=$id]"&gt; &lt;li&gt; &lt;xsl:call-template name="anchor"/&gt; &lt;/li&gt; &lt;/xsl:template&gt; &lt;!-- The anchor element we output is common, so put it into a template we can call. --&gt; &lt;xsl:template name="anchor"&gt; &lt;a href="{@url}"&gt; &lt;xsl:value-of select="@title"/&gt; &lt;/a&gt; &lt;/xsl:template&gt; &lt;!-- The built-in template for elements and the root node is already doing what we want, so we don't need to include it explicitly. It's below, commented out, for reference. --&gt; &lt;!-- &lt;xsl:template match="*|/"&gt; &lt;xsl:apply-templates/&gt; &lt;/xsl:template&gt;--&gt; &lt;!-- Don't want to output text or attribute nodes unless we explicitly say so, so we need to override the built-in templates for these. --&gt; &lt;xsl:template match="text()|@*"/&gt; &lt;/xsl:stylesheet&gt; </code></pre> <p>gives the following output when applied to your example input XML:</p> <pre><code>&lt;li class="active"&gt;&lt;a href="news-press/newslisting.jsp?year=2012"&gt;2012 Archive&lt;/a&gt;&lt;ul&gt; &lt;li class="active icon-nav-left"&gt;&lt;a href="news-press/newslisting.jsp?year=2012&amp;amp;month=12"&gt;December&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="news-press/newslisting.jsp?year=2012&amp;amp;month=4"&gt;April&lt;/a&gt;&lt;/li&gt; &lt;/ul&gt; &lt;/li&gt; &lt;li&gt;&lt;a href="news-press/newslisting.jsp"&gt;2013 Archive&lt;/a&gt;&lt;/li&gt; </code></pre>
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    1. POMore concise / efficient XSLT
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    1. USBen L
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    1. COThe transformation fails for me when I try this - says 'variables cannot be used within an expression'... I thoguht you couldn't use variables within a template match???
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      1. USjag
    2. COSorry, you are right (though this worked for me using Saxon HE 9.0.4.4N - I'll have to look more into why). I will look at it again soon and (hopefully) get it working.
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