map is:exact -package:text -package:containers -package:charset -package:dlist -package:Cabal-syntax -package:base-compat -package:base-compat-batteries -package:ghc -package:incipit-base -package:dense-linear-algebra -package:monoidal-containers -package:base package:case-insensitive
Transform the original string-like value but keep it case insensitive.