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diff --git a/helm/ocaml/grafite_engine/grafiteTypes.mli b/helm/ocaml/grafite_engine/grafiteTypes.mli
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+(* 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/
+ *)
+
+(* $Id$ *)
+
+exception Option_error of string * string
+exception Statement_error of string
+exception Command_error of string
+
+val command_error: string -> 'a   (** @raise Command_error *)
+
+type incomplete_proof = {
+  proof: ProofEngineTypes.proof;
+  stack: Continuationals.Stack.t;
+}
+
+type proof_status =
+    No_proof
+  | Incomplete_proof of incomplete_proof
+  | Proof of ProofEngineTypes.proof
+  | Intermediate of Cic.metasenv
+
+type option_value =
+  | String of string
+  | Int of int
+type options
+val no_options: options
+
+type status = {
+  moo_content_rev: GrafiteMarshal.moo;
+  proof_status: proof_status;                             (** logical status *)
+  options: options;
+  objects: UriManager.uri list;  (** in-scope objects *)
+  coercions: UriManager.uri list;                      (** defined coercions *)
+}
+
+val dump_status : status -> unit
+
+  (** list is not reversed, head command will be the first emitted *)
+val add_moo_content: GrafiteMarshal.ast_command list -> status -> status
+
+val get_option : status -> string -> option_value
+val get_string_option : status -> string -> string
+val set_option : status -> string -> string -> status
+
+val qualify: status -> string -> string
+
+val get_current_proof: status -> ProofEngineTypes.proof
+val get_proof_metasenv: status ->  Cic.metasenv
+val get_stack: status -> Continuationals.Stack.t
+val get_proof_context : status -> int -> Cic.context
+val get_proof_conclusion : status -> int -> Cic.term
+
+val set_stack: Continuationals.Stack.t -> status -> status
+val set_metasenv: Cic.metasenv -> status -> status