map -package:containers -package:case-insensitive -package:bytestring -package:dlist -package:ghc -package:pipes -package:incipit-base -package:filepath -package:integration -package:Cabal-syntax -package:dense-linear-algebra -package:base-compat-batteries -package:base package:charset

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