Module Util.String

We include the standard library

include CString.S
type t = string
val make : int -> char -> string
val init : int -> (int -> char) -> string
val empty : string
val of_bytes : bytes -> string
val to_bytes : string -> bytes
val length : string -> int
val get : string -> int -> char
val concat : string -> string list -> string
val cat : string -> string -> string
val equal : t -> t -> bool
val compare : t -> t -> int
val starts_with : prefix:string -> string -> bool
val ends_with : suffix:string -> string -> bool
val contains_from : string -> int -> char -> bool
val rcontains_from : string -> int -> char -> bool
val contains : string -> char -> bool
val sub : string -> int -> int -> string
val split_on_char : char -> string -> string list
val map : (char -> char) -> string -> string
val mapi : (int -> char -> char) -> string -> string
val fold_left : ('a -> char -> 'a) -> 'a -> string -> 'a
val fold_right : (char -> 'a -> 'a) -> string -> 'a -> 'a
val for_all : (char -> bool) -> string -> bool
val exists : (char -> bool) -> string -> bool
val trim : string -> string
val escaped : string -> string
val uppercase_ascii : string -> string
val lowercase_ascii : string -> string
val capitalize_ascii : string -> string
val uncapitalize_ascii : string -> string
val iter : (char -> unit) -> string -> unit
val iteri : (int -> char -> unit) -> string -> unit
val index_from : string -> int -> char -> int
val index_from_opt : string -> int -> char -> int option
val rindex_from : string -> int -> char -> int
val rindex_from_opt : string -> int -> char -> int option
val index : string -> char -> int
val index_opt : string -> char -> int option
val rindex : string -> char -> int
val rindex_opt : string -> char -> int option
val to_seq : t -> char Stdlib.Seq.t
val to_seqi : t -> (int * char) Stdlib.Seq.t
val of_seq : char Stdlib.Seq.t -> t
val get_utf_8_uchar : t -> int -> Stdlib.Uchar.utf_decode
val is_valid_utf_8 : t -> bool
val get_utf_16be_uchar : t -> int -> Stdlib.Uchar.utf_decode
val is_valid_utf_16be : t -> bool
val get_utf_16le_uchar : t -> int -> Stdlib.Uchar.utf_decode
val is_valid_utf_16le : t -> bool
val create : int -> bytes
val set : bytes -> int -> char -> unit
val blit : string -> int -> bytes -> int -> int -> unit
val copy : string -> string
val fill : bytes -> int -> int -> char -> unit
val uppercase : string -> string
val lowercase : string -> string
val capitalize : string -> string
val uncapitalize : string -> string
val get_uint8 : string -> int -> int
val get_int8 : string -> int -> int
val get_uint16_ne : string -> int -> int
val get_uint16_be : string -> int -> int
val get_uint16_le : string -> int -> int
val get_int16_ne : string -> int -> int
val get_int16_be : string -> int -> int
val get_int16_le : string -> int -> int
val get_int32_ne : string -> int -> int32
val get_int32_be : string -> int -> int32
val get_int32_le : string -> int -> int32
val get_int64_ne : string -> int -> int64
val get_int64_be : string -> int -> int64
val get_int64_le : string -> int -> int64
val unsafe_get : string -> int -> char
val unsafe_set : bytes -> int -> char -> unit
val unsafe_blit : string -> int -> bytes -> int -> int -> unit
val unsafe_fill : bytes -> int -> int -> char -> unit

Equality on strings

val hash : string -> int

Hashing on strings. Should be compatible with generic one.

val is_empty : string -> bool

Test whether a string is empty.

val explode : string -> string list

explode "x1...xn" returns ["x1"; ...; "xn"]

val implode : string list -> string

implode [s1; ...; sn] returns s1 ^ ... ^ sn

val drop_simple_quotes : string -> string

Remove the eventual first surrounding simple quotes of a string.

val string_index_from : string -> int -> string -> int

As index_from, but takes a string instead of a char as pattern argument

val string_contains : where:string -> what:string -> bool

As contains, but takes a string instead of a char as pattern argument

val plural : int -> string -> string

plural n s adds a optional 's' to the s when 2 <= n.

val conjugate_verb_to_be : int -> string

conjugate_verb_to_be returns "is" when n=1 and "are" otherwise

val ordinal : int -> string

Generate the ordinal number in English.

val is_sub : string -> string -> int -> bool

is_sub p s off tests whether s contains p at offset off.

val is_prefix : string -> string -> bool

is_prefix p s tests whether p is a prefix of s.

val is_suffix : string -> string -> bool

is_suffix suf s tests whether suf is a suffix of s.

Generic operations

*

module Set : Stdlib.Set.S with type elt = t

Finite sets on string

module Map : CMap.ExtS with type key = t and module Set := Set

Finite maps on string

module Pred : Predicate.S with type elt = t
module List : CList.MonoS with type elt = t

Association lists with string as keys

val hcons : string -> string

Hashconsing on string