Functional Programming

Hi /prog/, I needs help.

Could people give me some code in a functional language, specifically, I'd like some Haskell and OCaml. Lisp is also welcome. Other functional languages are also welcome (and appreciated), though I'm most interested in the mentioned ones.

The code snippet I'm looking for is to convert a string to uppercase, but I want the code to do this manually (so no calling some magical toupper function or whatever).
That means, this Haskell code is not valid, since it uses toUpper (though, if you define toUpper, I suppose I'll count it as valid).

import Data.Char
s = "alphaBETA"
upper = map toUpper s
Preferably I'd like code which does not use map or other such constructs (though if thats too dificult, then ignore this requirement). Also, if possible, I'd like code that converts the string both in place and by constructing a new string.


Basically, I want to see different approaches to doing this in different languages. All serious replies are appreciated. Trolls appreciated only if they make me laugh.

>>10
Moonspeak is not the only language that uses Unicode. Plenty of other equally worthless languages use it too. Personally, I fully support intentionally breaking applications and websites for non-English speakers. It gives them more motivation to learn English.