package base

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package base
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Character operations.

type t = char

An alias for the type of characters.

include sig ... end
val all : t list
include Identifiable.S with type t := t
include sig ... end
val hash_fold_t : Hash.state -> t -> Hash.state
val hash : t -> Hash.hash_value
val t_of_sexp : Sexp.t -> t
val sexp_of_t : t -> Sexp.t
include Stringable.S with type t := t
val of_string : string -> t
val to_string : t -> string
include Comparable.S with type t := t
include Comparable_intf.Polymorphic_compare with type t := t
include Comparisons.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

compare t1 t2 returns 0 if t1 is equal to t2, a negative integer if t1 is less than t2, and a positive integer if t1 is greater than t2.

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
module O : Comparisons.Infix with type t := t
val to_int : t -> int

Return the ASCII code of the argument.

val of_int : int -> t option

Return the character with the given ASCII code or None is the argument is outside the range 0 to 255.

val of_int_exn : int -> t

Return the character with the given ASCII code. Raise Failure if the argument is outside 0 to 255.

val unsafe_of_int : int -> t
val escaped : t -> string

Return a string representing the given character, with special characters escaped following the lexical conventions of Objective Caml.

val lowercase : t -> t

Convert the given character to its equivalent lowercase character.

val uppercase : t -> t

Convert the given character to its equivalent uppercase character.

val is_digit : t -> bool

'0' - '9'

val is_lowercase : t -> bool

'a' - 'z'

val is_uppercase : t -> bool

'A' - 'Z'

val is_alpha : t -> bool

'a' - 'z' or 'A' - 'Z'

val is_alphanum : t -> bool

'a' - 'z' or 'A' - 'Z' or '0' - '9'

val is_print : t -> bool

' ' - '~'

val is_whitespace : t -> bool

' ' or '\t' or '\r' or '\n'

val get_digit : t -> int option

Return Some i if is_digit c and None otherwise.

val get_digit_exn : t -> int

Return i if is_digit c. Raises Failure otherwise.

val min_value : t
val max_value : t