RE: Re: XPath expression confusion
Yes, that throws some light on the problem. Thanks. I've made similar mistakes before, even on questions posted to this list. Maybe it will stick in my mind this time. -- Charles Knell cknell@xxxxxxxxxx - email -----Original Message----- From: David Carlisle <davidc@xxxxxxxxx> Sent: Thu, 12 Jan 2006 23:47:36 GMT To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx Subject: Re: XPath expression confusion > <xsl:variable name="all-reqs" select="document('requirements.xml')/requirements//requirement/number" /> > > <xsl:template match="/"> > <un-assigned-reqs> > <xsl:for-each select="$all-reqs"> > <xsl:choose> > <xsl:when test="/system/components/component/requirement/@number = ." /> That test can never be true. If the top level element in requirements.xml is requirements, then the path starting /system will select the empty node set. / at the start of an xpath means the root of the tree containing the current node, and the current node here is an item in $all-reqs which is a tree rooted in the node returned by the document() function. I suspect you meant <xsl:variable name="all-reqs" select="document('requirements.xml')/requirements//requirement/number" /> <xsl:variable name="$root" select="/"/> <xsl:template match="/"> <un-assigned-reqs> <xsl:for-each select="$all-reqs"> <xsl:choose> <xsl:when test="$root/system/components/component/requirement/@number = ." /> although you dont need an xsl:choose with an empty branch it looks like a single xpath is all you need select="$all-reqs[not(.=$root/system/components/component/requirement/@number)]"> <requirement><xsl:value-of select="." /></requirement> David ________________________________________________________________________ This e-mail has been scanned for all viruses by Star. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________
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