Hi Christian,
I suppose it can't be this simple: reverse( sort( ('A', 'AA', 'B')))
Rob Stapper
-----Oorspronkelijk bericht-----
Van: [email protected] [mailto:[email protected]] Namens
Christian Grün
Verzonden: donderdag 3 december 2015 12:49
Aan: [email protected]
Onderwerp: [xquery-talk] fn:sort: sort for strings in descending order
Hi everyone,
As you may know, XQuery 3.1 introduces an interesting new fn:sort function,
which can be used as alternative for the order by clause in FLWOR expressions
[1]. It can e.g. be used to sort numbers in a descending order:
sort(
1 to 10,
function($k) { -$k }
)
I would be interested if anyone has already tried to get the descending order
working for strings?
sort(
('A', 'AA', 'B'),
function($k) { ... }
)
I assume that string-to-codepoints could be used, and all Unicode points could
then be negated, and additionally longer Unicode sequences would need to be
preferred over shorter ones… But maybe there is a more concise solution?
Thanks in advance,
Christian
[1] http://www.w3.org/TR/xpath-functions-31/#func-sort
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