Because they do not have to worry about locale. For a fair comparison the Haskell programs must be rewritten with a different toUpper function: http://hackage.

Because they do not have to worry about locale. For a fair comparison the Haskell programs must be rewritten with a different toUpper function: http://hackage.haskell.org/packages/archive/text-icu/0.6.3.5/doc/html/Data-Text-ICU.html#v%3atoUpper http://hackage.haskell.org/packages/archive/text-icu/0.6.3.5... See also: http://stackoverflow.com/questions/12537377/in-haskell-how-can-i-uppercase-a-unicode-character-with-respect-to-current-local http://stackoverflow.com/questions/12537377/in-haskell-how-c...