129 lines
4.9 KiB
OCaml
129 lines
4.9 KiB
OCaml
(**************************************************************************)
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(* *)
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(* Copyright (c) 2014 - 2016. *)
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(* Dynamic Ledger Solutions, Inc. <contact@tezos.com> *)
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(* *)
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(* All rights reserved. No warranty, explicit or implicit, provided. *)
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(* *)
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(**************************************************************************)
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module StringMap : Map.S with type key = string
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(** Splits a string on slashes, grouping multiple slashes, and
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ignoring slashes at the beginning and end of string. *)
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val split_path: string -> string list
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(** Splits a string on a delimier character, grouping multiple
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delimiters, and ignoring delimiters at the beginning and end of
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string, if [limit] is passed, stops after [limit] split(s). *)
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val split: char -> ?dup:bool -> ?limit: int -> string -> string list
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(** [Some (f x)] if input is [Some x], or [None] if it's [None] **)
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val map_option: f:('a -> 'b) -> 'a option -> 'b option
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(** [(f x)] if input is [Some x], or [None] if it's [None] **)
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val apply_option: f:('a -> 'b option) -> 'a option -> 'b option
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(** Call [(f x)] if input is [Some x], noop if it's [None] **)
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val iter_option: f:('a -> unit) -> 'a option -> unit
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(** [x] if input is [Some x], default if it's [None] **)
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val unopt: default:'a -> 'a option -> 'a
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(** [unopt_map f d x] is [y] if [x] is [Some y], [d] if [x] is [None] **)
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val unopt_map: f:('a -> 'b) -> default:'b -> 'a option -> 'b
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(** [x] for elements [Some x] in input. [None]s are dropped. **)
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val unopt_list: 'a option list -> 'a list
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(** First input of form [Some x], or [None] if none **)
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val first_some: 'a option -> 'a option -> 'a option
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(** Print a paragraph in a box **)
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val display_paragraph: Format.formatter -> string -> unit
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(** [remove nb list] remove the first [nb] elements from the list [list]. *)
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val remove_elem_from_list: int -> 'a list -> 'a list
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(** Return pair (list of first n items, remaining items) **)
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val split_list_at: int -> 'a list -> 'a list * 'a list
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(** [true] if input has prefix **)
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val has_prefix: prefix:string -> string -> bool
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(** Some (input with [prefix] removed), if string has [prefix], else [None] **)
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val remove_prefix: prefix:string -> string -> string option
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(** Length of common prefix of input strings *)
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val common_prefix: string -> string -> int
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(** [filter_map f l] is [[y for x in l where (f x) = Some y]] **)
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val filter_map: ('a -> 'b option) -> 'a list -> 'b list
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(** [list_rev_sub l n] is [List.rev l] capped to max [n] elements *)
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val list_rev_sub : 'a list -> int -> 'a list
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(** [list_sub l n] is [l] capped to max [n] elements *)
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val list_sub: 'a list -> int -> 'a list
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(** Like [List.hd], but [Some hd] or [None] if empty **)
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val list_hd_opt: 'a list -> 'a option
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(** Last elt of list, or raise Not_found if empty **)
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val list_last_exn: 'a list -> 'a
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(** [merge_filter_list2 ~compare ~f l1 l2] merges two lists ordered by [compare]
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and whose items can be merged with [f]. Item is discarded or kept whether
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[f] returns [Some] or [None] *)
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val merge_filter_list2 :
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?finalize:('a list -> 'a list) ->
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?compare:('a -> 'a -> int) ->
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?f:('a option -> 'a option -> 'a option) ->
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'a list -> 'a list ->
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'a list
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(** [merge_list2 ~compare ~f l1 l2] merges two lists ordered by [compare] and
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whose items can be merged with [f] *)
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val merge_list2 :
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?finalize:('a list -> 'a list) ->
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?compare:('a -> 'a -> int) ->
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?f:('a -> 'a -> 'a) ->
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'a list -> 'a list ->
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'a list
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(** [finalize f g ] ensures g() called after f(), even if exception raised **)
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val finalize: (unit -> 'a) -> (unit -> unit) -> 'a
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(** Return contents of file at given filename. **)
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val read_file: ?bin:bool -> string -> string
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(** [write_file p c] writes c to file at path p **)
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val write_file: ?bin:bool -> string -> string -> unit
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(** Compose functions from right to left. *)
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val (<<) : ('b -> 'c) -> ('a -> 'b) -> 'a -> 'c
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(** Sequence: [i--j] is the sequence [i;i+1;...;j-1;j] *)
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val (--) : int -> int -> int list
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(** [repeat n x] is a list of [n] [x]'s **)
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val repeat: int -> 'a -> 'a list
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(** [take_n n l] returns the [n] first elements of [l]. When [compare]
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is provided, it returns the [n] greatest element of [l]. *)
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val take_n: ?compare:('a -> 'a -> int) -> int -> 'a list -> 'a list
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(** Bounded sequence: keep only the [n] greatest elements. *)
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module Bounded(E: Set.OrderedType) : sig
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type t
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val create: int -> t
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val insert: E.t -> t -> unit
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val get: t -> E.t list
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end
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(** [select n l] is ([n]th element of [l], [l] without that element) **)
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val select: int -> 'a list -> 'a * 'a list
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(** [parse_addr_port uri] is (node, service) where [node] is the DNS or
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IP and service is the optional port number or service name. *)
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val parse_addr_port: string -> string * string
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