map is:exact -package:text -package:base-compat-batteries -package:basement -package:dense-linear-algebra -package:dlist -package:incipit-base -package:foldl -package:invertible -package:base-compat -package:monoidal-containers -package:pipes -package:base-prelude package:case-insensitive
Transform the original string-like value but keep it case insensitive.