-(* Copyright (C) 2004-2005, HELM Team.
- *
- * This file is part of HELM, an Hypertextual, Electronic
- * Library of Mathematics, developed at the Computer Science
- * Department, University of Bologna, Italy.
- *
- * HELM is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * HELM is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with HELM; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- * MA 02111-1307, USA.
- *
- * For details, see the HELM World-Wide-Web page,
- * http://helm.cs.unibo.it/
- *)
-
-(* $Id$ *)
-
-open Printf
-
- (** @return l2 \ l1 *)
-let uri_list_diff l2 l1 =
- let module S = UriManager.UriSet in
- let s1 = List.fold_left (fun set uri -> S.add uri set) S.empty l1 in
- let s2 = List.fold_left (fun set uri -> S.add uri set) S.empty l2 in
- let diff = S.diff s2 s1 in
- S.fold (fun uri uris -> uri :: uris) diff []
-
-let initial_status lexicon_status baseuri =
- (new GrafiteTypes.status baseuri)#set_lstatus lexicon_status#lstatus
-;;
-
-let time_travel ~present ?(past=initial_status present present#baseuri) () =
- NCicLibrary.time_travel past
-;;
-
-let init lexicon_status =
- initial_status lexicon_status
- ;;
-let pop () = ()
-;;
-
-let push () = ()
-;;
-