Module Data.Char

isAscii :: Char -> Bool   

Returns true if the argument is an ASCII character.

isLatin1 :: Char -> Bool   

Returns true if the argument is an Latin-1 character.

isAsciiLower :: Char -> Bool   

Returns true if the argument is an ASCII lowercase letter.

isAsciiUpper :: Char -> Bool   

Returns true if the argument is an ASCII uppercase letter.

isControl :: Char -> Bool   

Returns true if the argument is a control character.

toUpper :: Char -> Char   

Converts lowercase into uppercase letters.

toLower :: Char -> Char   

Converts uppercase into lowercase letters.

digitToInt :: Char -> Int   

Converts a (hexadecimal) digit character into an integer.

intToDigit :: Int -> Char   

Converts an integer into a (hexadecimal) digit character.