map -package:containers -package:insert-ordered-containers -package:monoidal-containers -package:base-prelude -package:base-compat -package:incipit-base -package:case-insensitive -package:basement -package:pipes -package:Cabal-syntax -package:regex-tdfa package:charset

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