package base

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package base
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Unicode character operations.

type t = Caml.Uchar.t
include sig ... end
val t_of_sexp : Sexp.t -> t
val sexp_of_t : t -> Sexp.t
val hash_fold_t : Hash.state -> t -> Hash.state
val hash : t -> Hash.hash_value
include Comparable.S with type t := t
include Comparable_intf.Polymorphic_compare with type t := t
include Polymorphic_compare_intf.Infix with type t := t
val (>=) : t -> t -> bool
val (<=) : t -> t -> bool
val (=) : t -> t -> bool
val (>) : t -> t -> bool
val (<) : t -> t -> bool
val (<>) : t -> t -> bool
val equal : t -> t -> bool
val compare : t -> t -> int

-1 means "less than", 0 means "equal", 1 means "greater than", and other values should not be returned

val min : t -> t -> t
val max : t -> t -> t
val ascending : t -> t -> int

ascending is identical to compare. descending x y = ascending y x. These are intended to be mnemonic when used like List.sort ~cmp:ascending and List.sort ~cmp:descending, since they cause the list to be sorted in ascending or descending order, respectively.

val descending : t -> t -> int
val between : t -> low:t -> high:t -> bool
val clamp_exn : t -> min:t -> max:t -> t

clamp_exn t ~min ~max returns t', the closest value to t such that between t' ~low:min ~high:max is true.

Raises if not (min <= max).

val clamp : t -> min:t -> max:t -> t Or_error.t
include Comparator.S with type t := t
type comparator_witness
include Comparable_intf.Validate with type t := t
val validate_lbound : min:t Maybe_bound.t -> t Validate.check
val validate_ubound : max:t Maybe_bound.t -> t Validate.check
val validate_bound : min:t Maybe_bound.t -> max:t Maybe_bound.t -> t Validate.check
include Pretty_printer.S with type t := t
val pp : Caml.Format.formatter -> t -> unit
val succ : t -> t option

succ_exn t is the scalar value after t in the set of Unicode scalar values, and raises if t = max_value.

val succ_exn : t -> t
val pred : t -> t option

pred_exn t is the scalar value before t in the set of Unicode scalar values, and raises if t = min_value.

val pred_exn : t -> t
val is_char : t -> bool

is_char t is true iff n is in the latin-1 character set.

val to_char : t -> char option

to_char_exn t is t as a char if it is in the latin-1 chacter set, and raises otherwise.

val to_char_exn : t -> char
val of_char : char -> t

of_char c is c as a Unicode character.

val int_is_scalar : int -> bool

int_is_scalar n is true iff n is an Unicode scalar value (i.e. in the ranges 0x0000...0xD7FF or 0xE000...0x10FFFF).

val of_scalar : int -> t option

of_scalar_exn n is n as a Unicode character. Raises if not (int_is_scalar i).

val of_scalar_exn : int -> t
val to_scalar : t -> int

to_scalar t is t as an integer scalar value.

val min_value : t
val max_value : t
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