map -package:containers -package:bytestring -package:dlist -package:base-prelude -package:insert-ordered-containers -package:Cabal-syntax -package:incipit-base -package:case-insensitive -package:foldl -package:ghc -package:base-compat-batteries package:charset

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