map -package:ghc -package:base-compat -package:dlist -package:basement -package:Cabal-syntax -package:dense-linear-algebra -package:base-compat-batteries -package:containers -package:psqueues -package:os-string is:exact -package:regex-tdfa -package:unordered-containers -package:base -package:vector package:charset

map :: (Char -> Char) -> CharSet -> CharSet
charset Data.CharSet