X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fcomponents%2Fextlib%2FhExtlib.mli;h=5b467d00577fb71a44296fc54d537b4301d31453;hb=effab341df3fb2bfe403e51d360e81c8b0455e1a;hp=a38b09334c7d2cb677c4e673d911f73441015443;hpb=4c18fa5b069a1e3216e9e3e0f18d92e778e67e41;p=helm.git

diff --git a/helm/software/components/extlib/hExtlib.mli b/helm/software/components/extlib/hExtlib.mli
index a38b09334..5b467d005 100644
--- a/helm/software/components/extlib/hExtlib.mli
+++ b/helm/software/components/extlib/hExtlib.mli
@@ -40,7 +40,6 @@ val safe_rmdir: string -> unit (** removes a dir if it exists and is empty *)
 val is_dir_empty: string -> bool (** checks if the dir is empty *)
 val rmdir_descend: string -> unit (** rmdir -p *)
 
-
   (** find all _files_ whose name matches test under a filesystem root.
    * Test is passed the filename path relative to the given filesystem root *)
 val find: ?test:(string -> bool) -> string -> string list 
@@ -76,9 +75,18 @@ val trim_blanks: string -> string (** strip heading and trailing blanks *)
 val list_uniq: 
   ?eq:('a->'a->bool) -> 'a list -> 'a list (** uniq unix filter on lists *)
 val filter_map: ('a -> 'b option) -> 'a list -> 'b list (** filter + map *)
+val list_rev_map_filter: ('a -> 'b option) -> 'a list -> 'b list
+val list_rev_map_filter_fold: ('c -> 'a -> 'c * 'b option) -> 'c -> 'a list -> 'c * 'b list
 val list_concat: ?sep:'a list -> 'a list list -> 'a list (**String.concat-like*)
 val list_findopt: ('a -> 'b option) -> 'a list -> 'b option
 val flatten_map: ('a -> 'b list) -> 'a list -> 'b list
+val list_last: 'a list -> 'a
+
+  (** split_nth n l
+   * @returns two list, the first contains at least n elements, the second the
+   * remaining one
+   * @raise Failure when List.length l < n *)
+val split_nth: int -> 'a list -> 'a list * 'a list
 
 (** {2 Debugging & Profiling} *)