permutations is:package

Not on Stackage, so not searched. Permutations of finite sets
Not on Stackage, so not searched. Permutations and universal set related functions for the phonetic-languages series
Not on Stackage, so not searched. Commonly used versions of the phonetic-languages-common package
Execute a set of actions (e.g. parsers) in each possible order Sequence a set of Alternative actions in each possible order, based on "Parsing Permutation Phrases", by Arthur Baars, Andres Loeh and S. Doaitse Swierstra, Haskell Workshop 2001. This is particularly useful for constructing a parser for permutations of elements. This version has a slightly different interface from the paper.