[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: After XQuery, are we done?
Elliotte Harold <elharo@m...> writes: > > Hunsberger, Peter wrote: > > > > I don't get the distinction. As soon as you've got a graph > you've got > > a tree (or perhaps many trees). > > > > Not necessarily. All trees are graphs but not all graphs are > trees. For > instance a pure tree can't represent a cycle but a graph can. > XML's rule > that a node can only have one parent is not a limit of graphs > in general. Yes, I was trying to say that a tree is a subset of a graph, you snipped the context: > A more important question, which gets to the heart of the matter, is > who decides what is a graph, what is a tree, and by what > means do they > make the interpretation? Why do you care about having tree's if you've got a graph?
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