RE: Counting nodes processed
This works fine except that I really only want to print the category 1 time, not each line. In the previous solution I was able to test on the position in the topic to eliminate the category header when not the 1st time. Any hints? jay -----Original Message----- From: Thomas B. Passin [mailto:tpassin@xxxxxxxxxxxx] Sent: Monday, March 04, 2002 11:02 AM To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx Subject: Re: Counting nodes processed [JAY SCHERER] > I've got a need to limit the amount of ouput generated in a translation. Assume the following xml > > <category value="category1"> > <topic value="topic1"/> > <topic value="topic2"/> > <topic value="topic3"/> > </category> > <category value="category2"> > <topic value="topic1"/> > <topic value="topic2"/> > <topic value="topic3"/> > </category> > > How would I limit my total number of topics output to say 4 topics? This is straight forward in code, but not sure how to do it xsl? Basically the output would be topic1,2 and 3 from category1 and topic 1 from category 2 > cutlass <cutlass@xxxxxxxxxxx> suggested using position(), but that may not work because position() depends on the context of the current node, which can vary depending on how you refer to it. It is easy to get unexpected results using position(). Here is a different approach. You first select just those topics you want to use. If you want to output just four topics, you can select those topics where the count of all preceding topic elements is less than 4. This will work unambiguously. Here's what it might look like: ==================================== <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> <xsl:variable name='allowed-elements' select='/doc/category/topic[count(preceding::topic)<4]'/> <xsl:template match="/"> <results> <xsl:apply-templates select='$allowed-elements'/> </results> </xsl:template> <xsl:template match='topic'> <xsl:value-of select='ancestor::category/@value'/>-- <xsl:value-of select='@value'/><br/> </xsl:template> </xsl:stylesheet> ================================ Here is the result (the <br/> is there only to give an artificial line feed for visual formatting in Internet Explorer): =============================== <results> category1-- topic1 <br /> category1-- topic2 <br /> category1-- topic3 <br /> category2-- topic1 <br /> </results> ================================== Cheers, Tom P XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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