[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Constraints on the elements in a nested XML tree?
Hi Folks, I am dealing with XML trees. No id/idrefs. No mixed content. Just plain old properly nested elements. Suppose I have a pile of elements and I want a machine to assemble them into a tree of properly nested elements. The machine doesn't know the rules for assembly so I must tell it the constraints on the elements; in particular, the constraints on how they may be nested. Here's the list of constraints that I've come up with thus far: 1. An element cannot be a descendent of itself, i.e., no loops in the tree. 2. If elements e and e' are children of element E, then e cannot be a child of e' or vice versa. What other constraints are there? /Roger
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