Subject: [xsl] Need some help with an XPath From: "Adam van den Hoven" <list@xxxxxxxxxxxxxxxxxxx> Date: Fri, 21 Feb 2003 11:49:37 -0800 |
I have a node set that looks something like: <branch> <service servId="Service 1" /> <service servId="Service 3" /> <service servId="Service 4" /> </branch> <branch> <service servId="Service 1" /> <service servId="Service 2" /> <service servId="Service 4" /> </branch> <branch> <service servId="Service 1" /> <service servId="Service 3" /> <service servId="Service 4" /> </branch> Now what I want is a set of all the service elements that do not appear in ALL the branch Elements. In this case I'm hoping for <service servId="Service 3" /> <service servId="Service 2" /> <service servId="Service 3" /> Although the extra "Service 3" doesn't really need to be there, the way I'll be using it doesn't care. Now my first thought was: "All the services elements where the number of branch elements does not equal the number of branch elements containing this service element" the XPath for this (assuming $branch contains the nodeset in question) : service[count($branch) != count($branch[service = ???])] The problem is that I'm not sure what to replace the ??? with. Clearly a period isn't going to work. Neither is current(). Now I could use a for-each but I know better than to start there. I have a suspicion that keys will fit in the solution but I'm not 100% sure where. Any ideas? H. Adam van den Hoven Web Developer Credit Union Central of BC p 604 7306380 e avandenhoven@xxxxxxxxx XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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