Even adding req() as a synonym for one-or-more() might be enough to
encourage people to write req(Document)/req(foo) in order to get better
diagnostics.
Why not just:
req(Document/foo)
The finer-grained form would enable more precise diagnostics.
And they aren't equivalent: if there are two Document elements, only one of
which has a foo child, one expression would fail and the other would succeed.
Michael Kay
Saxonica
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