Haskell, Char, Unicode, and Turkish

Question

For the Char data-type, how do I specify that I want to use the Turkish i instead of the English i for the toLower and toUpper functions?

Answer 1

A Simple Matter Of Programming:

import qualified Data.Char as Char

toLower 'I' = 'ı'
toLower x   = Char.toLower x

Then

toLower <$> "I AM LOWERCASE" == "ı am lowercase"