Subject: Re: [xsl] Node Position() always equals 1 From: Cynthia DeLaria <cdelaria@xxxxxxxxxxxxx> Date: Tue, 1 Feb 2005 13:40:27 -0800 (PST) |
Yes, I see that now... The for-each was a reduntant statement, because the apply-templates was already grabbing all matching nodes... This has been haunting me for a couple of weeks now... I have a much better understanding of apply-templates and for-each now too... Thank you so much, David. :) Cynthia -----Original Message----- From: David Carlisle <davidc@xxxxxxxxx> Sent: Feb 1, 2005 9:01 AM To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx Subject: Re: [xsl] Node Position() always equals 1 <xsl:template match="offer"> <xsl:for-each select="."> . selects exactkly one node so the current node list has one node and position()=last()=1 here. You probably just want to remove the for-each, it isn't doing anything (except changing the value pf position(). Actually you probably shopuld get rid of your count variable as well. You have <xsl:variable name="count"><xsl:value-of select="count(template/spec_off/offer[./@*[local-name()=$version]='true'])" /></xsl:variable> which means that $count is a result tree fragment with a root node and a text node with a string that is the decimal expansion of the number of nodes. If you instead went <xsl:variable name="count" select="count(template/spec_off/offer[./@*[local-name()=$version]='true'])" /> $count would be the number of nodes, stored as a number. this is much more efficient to store. Howver in both cases the system has to search all teh documentto count those nodes, then later when you test if $count is bigger than 1 it has to go and find them again. So better (most likely) would be to make the variable store the nodes themselves. <xsl:variable name="count" select="template/spec_off/offer[./@*[local-name()=$version]='true'])" /> Now instead of <xsl:if test="$count > 1"> you can just test if that node set has any nodes: <xsl:if test="$count"> and instead of <xsl:apply-templates select="template/spec_off/offer[./@*[local-name()=$version]='true'][position() > 1]" /> you can just do <xsl:apply-templates select="$count[position() > 1]"/> (note that $count[position() > 1] latter is equivalent to (template/spec_off/offer[./@*[local-name()=$version]='true'])[position() > 1] but that is the same as you have as your offer elements are all siblings. 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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