[Libguestfs] [PATCH v2 1/4] common/mlstdutils: Extend the List module.

We defined a number of functions on lists which are not provided by the standard library. As with Char and String, let's extend List to add these new functions to a List pseudo-module (really Std_utils.List, but called List when you ‘open Std_utils’). The initial exported functions are all List functions from OCaml 3.11 + iteri + mapi. We can add other functions as needed. --- common/mlstdutils/std_utils.ml | 4 ++++ common/mlstdutils/std_utils.mli | 47 +++++++++++++++++++++++++++++++++++++++++ 2 files changed, 51 insertions(+) diff --git a/common/mlstdutils/std_utils.ml b/common/mlstdutils/std_utils.ml index fca76c208..67d449ac2 100644 --- a/common/mlstdutils/std_utils.ml +++ b/common/mlstdutils/std_utils.ml @@ -271,6 +271,10 @@ module String = struct loop 0 end +module List = struct + include List +end + let (//) = Filename.concat let quote = Filename.quote diff --git a/common/mlstdutils/std_utils.mli b/common/mlstdutils/std_utils.mli index 786f42591..f3f9c01cb 100644 --- a/common/mlstdutils/std_utils.mli +++ b/common/mlstdutils/std_utils.mli @@ -134,6 +134,53 @@ module String : sig end (** Override the String module from stdlib. *) +module List : sig + val length : 'a list -> int + val hd : 'a list -> 'a + val tl : 'a list -> 'a list + val nth : 'a list -> int -> 'a + val rev : 'a list -> 'a list + val append : 'a list -> 'a list -> 'a list + val rev_append : 'a list -> 'a list -> 'a list + val concat : 'a list list -> 'a list + val flatten : 'a list list -> 'a list + val iter : ('a -> unit) -> 'a list -> unit + val iteri : (int -> 'a -> unit) -> 'a list -> unit + val map : ('a -> 'b) -> 'a list -> 'b list + val mapi : (int -> 'a -> 'b) -> 'a list -> 'b list + val rev_map : ('a -> 'b) -> 'a list -> 'b list + val fold_left : ('a -> 'b -> 'a) -> 'a -> 'b list -> 'a + val fold_right : ('a -> 'b -> 'b) -> 'a list -> 'b -> 'b + val iter2 : ('a -> 'b -> unit) -> 'a list -> 'b list -> unit + val map2 : ('a -> 'b -> 'c) -> 'a list -> 'b list -> 'c list + val rev_map2 : ('a -> 'b -> 'c) -> 'a list -> 'b list -> 'c list + val fold_left2 : ('a -> 'b -> 'c -> 'a) -> 'a -> 'b list -> 'c list -> 'a + val fold_right2 : ('a -> 'b -> 'c -> 'c) -> 'a list -> 'b list -> 'c -> 'c + val for_all : ('a -> bool) -> 'a list -> bool + val exists : ('a -> bool) -> 'a list -> bool + val for_all2 : ('a -> 'b -> bool) -> 'a list -> 'b list -> bool + val exists2 : ('a -> 'b -> bool) -> 'a list -> 'b list -> bool + val mem : 'a -> 'a list -> bool + val memq : 'a -> 'a list -> bool + val find : ('a -> bool) -> 'a list -> 'a + val filter : ('a -> bool) -> 'a list -> 'a list + val find_all : ('a -> bool) -> 'a list -> 'a list + val partition : ('a -> bool) -> 'a list -> 'a list * 'a list + val assoc : 'a -> ('a * 'b) list -> 'b + val assq : 'a -> ('a * 'b) list -> 'b + val mem_assoc : 'a -> ('a * 'b) list -> bool + val mem_assq : 'a -> ('a * 'b) list -> bool + val remove_assoc : 'a -> ('a * 'b) list -> ('a * 'b) list + val remove_assq : 'a -> ('a * 'b) list -> ('a * 'b) list + val split : ('a * 'b) list -> 'a list * 'b list + val combine : 'a list -> 'b list -> ('a * 'b) list + val sort : ('a -> 'a -> int) -> 'a list -> 'a list + val stable_sort : ('a -> 'a -> int) -> 'a list -> 'a list + val fast_sort : ('a -> 'a -> int) -> 'a list -> 'a list + val merge : ('a -> 'a -> int) -> 'a list -> 'a list -> 'a list +end +(** Override the List module from stdlib. *) + val ( // ) : string -> string -> string (** Concatenate directory and filename. *) -- 2.13.2