Subject: [xsl] Creating a tree variable and using it in later processing From: Alan Alda <alan4077alda@xxxxxxxxx> Date: Thu, 19 Jul 2001 17:44:07 -0700 (PDT) |
Hi, I have an input XML file in which the elements are not sorted how I want. I need to 1. sort the elements and 2. display these sorted elements in a particular order. For example my XML file is: <sw-product-group> <product-group-name>Cars</product-group-name> <product-group-list number="5"> <product> <name>Buick</name> <number>T12340</number> </product> <product> <name>Eagle</name> <number>T12335</number> </product> <product> <name>Chevy</name> <number>T12340</number> </product> <product> <name>Dodge</name> <number>T12345</number> </product> <product> <name>Acura</name> <number>T22345</number> </product> </product-group-list> </sw-product-group> As you can see, the input XML document comes to me sorted by <number> and not by <name> (how the document is sorted is not in my control :-( ). However, I need to have my input sorted by <name> and I need to access the sorted elements according to a certain predefined order -for the sake of simplicity, lets say I need to access alternate names in the sorted list. Here the logic I am currently using: (I am relatively new to XSL -my disclaimer- and heres what I am trying to do) 1. Sort the <product> nodes by <name> 2. Store the sorted list in a variable called "tree" 3. Now access $tree, in order to pick out the <name> nodes in whatever order I please. The problem, as most of you must have guessed is that I get an error "Reference to variable or parameter tree must evaluate to a node list". The XSLT processor I must use is Xalan - hence, the XSL version 1.0 W3C recommendation. I have read about similar problems in an XSL FAQ, but my case seems too simple not to have a solution. So my questions are: How can I solve this problem without using any extension functions like node-set() etc.? Is there any logic other than the one I am considering that can achieve the same effect? Thanks, Cheers, Alan. __________________________________________________ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail http://personal.mail.yahoo.com/ XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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