One has to be willing to think with the
literal-mindedness of a machine to tell the difference
between /descendant-or-self::node()/child::Value[1] and
(/descendant-or-self::node()/child::Value)[1], and that can
take a bit of practice.
Yes. I'm not sure why people struggle with this though. It seems intuitive
enough that
x | y[1]
doesn't mean the same as
(x | y)[1]
so why is the "/" perceived so differently from the "|"? Is it that people
are somehow aware that it's a higher-order operator and therefore imagine it
doesn't obey normal precedence rules? Or is it the overloading of [], which
in its other role as a boolean filter is associative with "/"?
Michael Kay
http://www.saxonica.com/
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