Compare sequences.
A general comparison differs from a value comparison in that operands may be
sequences of any length with implicit existential quantification. Given two
sequences A and B the result is determined as
follows:
A = B is true if and only if the value
comparison a eq b is true for some item a in
A and some b in B. Otherwise it is
false.
A != B is true if and only if the value
comparison a ne b is true for some item a in
A and some b in B.
A < B is true if and only if the value
comparison a lt b is true for some item a in
A and some b in B.
A <= B is true if and only if the value
comparison a lt b is true for some item a in
A and some b in B.
A > B is true if and only if the value
comparison a gt b is true for some item a in
A and some b in B.
A >= B is true if and only if the value
comparison a ge b is true for some item a in
A and some b in B.
For all books check if there is an author with surname "Stevens":
for $b in input()/bib/book return $b/author/last = "Stevens"
Given the sample data this comparison is true for two
instances of book, but false for the
other ones.
The following construct(s) refer to this construct:
This construct is also related to the following construct(s):
ValueComp
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