char: character operations

value int_of_char : char -> int
Return the ASCII code of the argument.
value char_of_int : int -> char
Return the character with the given ASCII code. Raise Invalid_argument "char_of_int" if the argument is outside the range 0--255.
value string_of_char : char -> string
Return a string representing the given character.
value char_for_read : char -> string
Return a string representing the given character, with special characters escaped following the lexical conventions of Caml Light.