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Algorithm::Loops - Looping constructs:
NestedLoops, MapCar*, Filter, and NextPermute*
Algorithm::Loops provides several functions for doing different types of
looping constructs:
Filter
Similar to C<map> but designed for use with s/// and other reflexive
operations. Returns a modified copy of a list.
MapCar, MapCarU, MapCarE, and MapCarMin
All similar to C<map> but loop over multiple lists at the same time.
NextPermute and NextPermuteNum
Efficiently find all (unique) permutations of a list, even if it
contains duplicate values.
NestedLoops
Simulate C<foreach> loops nested arbitrarily deep.
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