[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] calculating relative position in document order
Hi, I'd like to be able to determine which element is "closer", in terms of document order, to a given element. eg, given two structures containing siblings: <a> <b> <c> and <b> <a> <c> I'd like to detect that the second structure is "out of order". In my fantasy pseudo code, I might express the constraint as: //c[positionEX(preceding::a[1]) > positionEX(preceding::b[1])] Where my fantasy positionEX() function returns the absolute position of the argument in the document. Am I missing something, or is implementing this operation in real xpath/xslt much more difficult than it seems it should be? Thanks in advance for any help... --T
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