module Char: sig
.. end
Character operations.
val code : char -> int
Return the ASCII code of the argument.
val chr : int -> char
Return the character with the given ASCII code.
Raise Invalid_argument "Char.chr"
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
Deprecated.Functions operating on Latin-1 character set are deprecated.
Convert the given character to its equivalent lowercase character,
using the ISO Latin-1 (8859-1) character set.
val uppercase : char -> char
Deprecated.Functions operating on Latin-1 character set are deprecated.
Convert the given character to its equivalent uppercase character,
using the ISO Latin-1 (8859-1) character set.
val lowercase_ascii : char -> char
Convert the given character to its equivalent lowercase character,
using the US-ASCII character set.
Since 4.03.0
val uppercase_ascii : char -> char
Convert the given character to its equivalent uppercase character,
using the US-ASCII character set.
Since 4.03.0
type
t = char
An alias for the type of characters.
val compare : t -> t -> int
The comparison function for characters, with the same specification as
compare
. Along with the type
t
, this function
compare
allows the module
Char
to be passed as argument to the functors
Set.Make
and
Map.Make
.
val equal : t -> t -> bool
The equal function for chars.
Since 4.03.0