Module type UnicodeString.Type

type t

The type of string.

val get : t -> int -> UChar.t

get t i : i-th character of the storage.

val init : int -> (int -> UChar.t) -> t

init len f creates a new storage. the returned storage has length len, its nth-element is f n. f is called with integers 0 ... len - 1, only once for each integer. The call is in the increasing order f 0, f 1, f 2, ...

val length : t -> int

The number of Unicode characters in the storage

type index

locations in storages.

val look : t -> index -> UChar.t

look t i : The character in the location i of t.

val nth : t -> int -> index

nth t n : the location of the n-th character in t.

val next : t -> index -> index
val prev : t -> index -> index
val out_of_range : t -> index -> bool
val iter : (UChar.t -> unit) -> t -> unit
val compare : t -> t -> int
val first : t -> index

The location of the first character in the storage.

val last : t -> index

The location of the last character in the storage.

val move : t -> index -> int -> index

move t i n : if n >= 0, then returns n-th character after i and otherwise returns -n-th character before i. If there is no such character, or i does not point a valid character, the result is unspecified.

val compare_index : t -> index -> index -> int

compare_index t i j returns a positive integer if i is the location placed after j in t, 0 if i and j point the same location, and a negative integer if i is the location placed before j in t.

module Buf : sig ... end

Character buffers. Similar to Buffer.