(* Copyright (C) 2004, 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/
 *)

(** {2 Disambiguation interface} *)

exception NoWellTypedInterpretation
exception PathNotWellFormed

val interpretate_path :
  context:Cic.name list -> env:DisambiguateTypes.environment ->
  DisambiguateTypes.term ->
    Cic.term

module type Disambiguator =
sig
  val disambiguate_term :
    dbd:Mysql.dbd ->
    context:Cic.context ->
    metasenv:Cic.metasenv ->
    ?initial_ugraph:CicUniv.universe_graph -> 
    aliases:DisambiguateTypes.environment ->(* previous interpretation status *)
    DisambiguateTypes.term ->
    (DisambiguateTypes.environment * (* new interpretation status *)
     Cic.metasenv *                  (* new metasenv *)
     Cic.term *
     CicUniv.universe_graph) list    (* disambiguated term *)

  val disambiguate_obj :
    dbd:Mysql.dbd ->
    aliases:DisambiguateTypes.environment ->(* previous interpretation status *)
    uri:UriManager.uri option ->     (* required only for inductive types *)
    GrafiteAst.obj ->
    (DisambiguateTypes.environment * (* new interpretation status *)
     Cic.metasenv *                  (* new metasenv *)
     Cic.obj *
     CicUniv.universe_graph) list    (* disambiguated obj *)
end

module Make (C : DisambiguateTypes.Callbacks) : Disambiguator

module Trivial:
sig
  exception Ambiguous_term of string

  (** disambiguate an _unanmbiguous_ term using dummy callbacks which fail if a
    * choice from the user is needed to disambiguate the term
    * @raise Ambiguous_term for ambiguous term *)
  val disambiguate_string:
    dbd:Mysql.dbd ->
    ?context:Cic.context ->
    ?metasenv:Cic.metasenv ->
    ?initial_ugraph:CicUniv.universe_graph -> 
    ?aliases:DisambiguateTypes.environment ->(* previous interpretation status*)
    string ->
    (DisambiguateTypes.environment * (* new interpretation status *)
     Cic.metasenv *                 (* new metasenv *)
     Cic.term *
     CicUniv.universe_graph) list   (* disambiguated term *)
end

val dummy_floc: Lexing.position * Lexing.position