map -is:exact -package:base-prelude -package:conduit -package:base -package:case-insensitive -package:dlist -package:imports -package:Cabal-syntax -package:basement -package:insert-ordered-containers -package:os-string -package:psqueues -package:pipes -package:regex-tdfa -package:base-compat -package:monoidal-containers package:charset

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