(* 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/
 *)

exception Drop
exception UnableToInclude of string

type statement =
  (CicNotationPt.term, GrafiteAst.obj, string) GrafiteAst.statement

(* heavy checks slow down the compilation process but give you some interesting
 * infos like if the theorem is a duplicate *)
val eval_string:
  ?do_heavy_checks:bool ->
  ?include_paths:string list ->
  ?clean_baseuri:bool ->
    MatitaTypes.status ref -> string -> unit

val eval_from_stream: 
  ?do_heavy_checks:bool ->
  ?include_paths:string list ->
  ?clean_baseuri:bool ->
  MatitaTypes.status ref -> char Stream.t -> 
  (MatitaTypes.status -> statement -> unit) ->
    unit

val eval_from_stream_greedy: 
  ?do_heavy_checks:bool ->
  ?include_paths:string list ->
  ?clean_baseuri:bool ->
  MatitaTypes.status ref-> char Stream.t -> 
  (MatitaTypes.status -> statement -> unit) ->
    unit

val eval_ast: 
  ?do_heavy_checks:bool ->
  ?include_paths:string list ->
  ?clean_baseuri:bool ->
  MatitaTypes.status ->
    statement ->
    MatitaTypes.status

val initial_status: MatitaTypes.status lazy_t