Module Stdlib.Char

include module type of struct include Char end
val code : char -> int

Return the ASCII code of the argument.

val chr : int -> char

Return the character with the given ASCII code.

  • raises Invalid_argument

    if the argument is outside the range 0--255.

val escaped : char -> string

Return a string representing the given character, with special characters escaped following the lexical conventions of OCaml. All characters outside the ASCII printable range (32..126) are escaped, as well as backslash, double-quote, and single-quote.

val lowercase : char -> char

Convert the given character to its equivalent lowercase character, using the ISO Latin-1 (8859-1) character set.

  • deprecated

    Functions operating on Latin-1 character set are deprecated.

val uppercase : char -> char

Convert the given character to its equivalent uppercase character, using the ISO Latin-1 (8859-1) character set.

  • deprecated

    Functions operating on Latin-1 character set are deprecated.

type t = char

An alias for the type of characters.

val (<) : char -> char -> bool
val (<=) : char -> char -> bool
val (<>) : char -> char -> bool
val (=) : char -> char -> bool
val (>) : char -> char -> bool
val (>=) : char -> char -> bool
val compare : char -> char -> int
val equal : char -> char -> bool
val is_alpha : char -> bool
val is_num : char -> bool
val lowercase_ascii : char -> char
val uppercase_ascii : char -> char