package containers

  1. Overview
  2. Docs
package containers
Legend:
Library
Module
Module type
Parameter
Class
Class type

Basic String Utils

Consider using Containers_string.KMP for pattern search, or Regex libraries.

type 'a gen = unit -> 'a option
type 'a sequence = ('a -> unit) -> unit
type 'a klist = unit -> [ `Nil | `Cons of 'a * 'a klist ]

Common Signature

module type S = sig ... end

Strings

val equal : string -> string -> bool
val compare : string -> string -> int
val hash : string -> int
val init : int -> (int -> char) -> string

Analog to Array.init.

  • since 0.3.3
val of_gen : char gen -> string
val of_seq : char sequence -> string
val of_klist : char klist -> string
val of_list : char list -> string
val of_array : char array -> string
val to_array : string -> char array
val find : ?start:int -> sub:string -> string -> int

Find sub in string, returns its first index or -1. Should only be used with very small sub

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

is_sub ~sub i s j ~len returns true iff the substring of sub starting at position i and of length len

val repeat : string -> int -> string

The same string, repeated n times

val prefix : pre:string -> string -> bool

prefix ~pre s returns true iff pre is a prefix of s

val suffix : suf:string -> string -> bool

suffix ~suf s returns true iff suf is a suffix of s

  • since 0.7
val lines : string -> string list

lines s returns a list of the lines of s (splits along '\n')

  • since 0.10
val lines_gen : string -> string gen

lines_gen s returns a generator of the lines of s (splits along '\n')

  • since 0.10
val concat_gen : sep:string -> string gen -> string

concat_gen ~sep g concatenates all strings of g, separated with sep.

  • since 0.10
val unlines : string list -> string

unlines l concatenates all strings of l, separated with '\n'

  • since 0.10
val unlines_gen : string gen -> string

unlines_gen g concatenates all strings of g, separated with '\n'

  • since 0.10
include S with type t := string
val length : string -> int
val blit : string -> int -> string -> int -> int -> unit

See String.blit

val fold : ('a -> char -> 'a) -> 'a -> string -> 'a

Fold on chars by increasing index.

  • since 0.7

Conversions

val to_gen : string -> char gen
val to_seq : string -> char sequence
val to_klist : string -> char klist
val to_list : string -> char list
val pp : Buffer.t -> string -> unit
val print : Format.formatter -> string -> unit

Splitting

module Split : sig ... end

Slices

A contiguous part of a string

module Sub : sig ... end
OCaml

Innovation. Community. Security.

GitHub Discord Twitter Peertube RSS
About
Changelog Releases Industrial Users Academic Users Why OCaml
Ecosystem
Packages Community Events Blog Jobs
Resources
Install OCaml Get Started Platform Tools Language Manual Standard Library API Books Exercises Papers OCaml Playground Logo
Policies
Carbon Footprint Governance Privacy Code of Conduct