Module Uchar

module Uchar: sig .. end

Unicode characters.

type t;

The type for Unicode characters.

A value of this type represents a Unicode scalar value which is an integer in the ranges 0x0000...0xD7FF or 0xE000...0x10FFFF.

let min: t;

min is U+0000.

let max: t;

max is U+10FFFF.

let bom: t;

bom is U+FEFF, the byte order mark (BOM) character.

let rep: t;

rep is U+FFFD, the replacement character.

let succ: t => t;

succ u is the scalar value after u in the set of Unicode scalar values.

let pred: t => t;

pred u is the scalar value before u in the set of Unicode scalar values.

let is_valid: int => bool;

is_valid n is true if and only if n is a Unicode scalar value (i.e. in the ranges 0x0000...0xD7FF or 0xE000...0x10FFFF).

let of_int: int => t;

of_int i is i as a Unicode character.

let to_int: t => int;

to_int u is u as an integer.

let is_char: t => bool;

is_char u is true if and only if u is a latin1 OCaml character.

let of_char: char => t;

of_char c is c as a Unicode character.

let to_char: t => char;

to_char u is u as an OCaml latin1 character.

let equal: (t, t) => bool;

equal u u' is u = u'.

let compare: (t, t) => int;

compare u u' is Stdlib.compare u u'.

let hash: t => int;

hash u associates a non-negative integer to u.