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> "preceding-sibling::*" to a variable "var", then I can ask for $var
> which would have no meaning if this was a -set- a
true but  does not work on a node set, it works on the current node
list (which being a list is ordered). In the above construct teh current
node list is first constructed by taking teh set in $var and listing the
nodes in document order.
In Xpath 1 the current node list is not a first class object, it can not
be returned as the value of an expression.
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