map -package:Cabal -package:base -package:text -package:dlist -package:blaze-html -package:ghc -package:pipes -package:vector -package:base-compat -package:regex-tdfa package:case-insensitive

map :: FoldCase s2 => (s1 -> s2) -> CI s1 -> CI s2
case-insensitive Data.CaseInsensitive
Transform the original string-like value but keep it case insensitive.