Will the stylesheet below result in 2 passes through the document. I
the normal recursive descent parsing and 2 to evaluate the global
variable?

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xs="http://www.w3.org/2001/XMLSchema"
                 xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                 version="2.0"
                 exclude-result-prefixes="xs">

    <!-- I type is irrelevant for this example -->
    <xsl:variable name="all">
       <xsl:apply-templates select="*"/>
    </xsl:variable>

    <xsl:template match="/">
       <xsl:value-of select="sum(key('counts',max($all))/count(@*))"/>
    </xsl:template>

    <xsl:template match="*">
       stuff
    </xsl:template>

<xsl:template match="text()"/>


</xsl:stylesheet>

	Martin Honnen --- MVP Data Platform Development
	http://msmvps.com/blogs/martin_honnen/