(* Copyright (C) 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/
 *)

let remove_closed_substs s =
    Pcre.replace ~pat:"{...}" ~templ:"" s

let term2pres n ids_to_inner_sorts annterm = 
   let ast, ids_to_uris = 
      TermAcicContent.ast_of_acic ids_to_inner_sorts annterm
   in
   let bobj =
      CicNotationPres.box_of_mpres (
         CicNotationPres.render ids_to_uris (TermContentPres.pp_ast ast)
      )
   in
   let render = function _::x::_ -> x | _ -> assert false in
   let mpres = CicNotationPres.mpres_of_box bobj in
   let s = BoxPp.render_to_string render n mpres in
   remove_closed_substs s

let obj_to_string n style prefix obj =
  let aobj,_,_,ids_to_inner_sorts,ids_to_inner_types,_,_ = Cic2acic.acic_object_of_cic_object obj in
  let cobj = Acic2content.annobj2content ids_to_inner_sorts ids_to_inner_types aobj in
  match style with
     | GrafiteAst.Declarative ->
        let bobj = Content2pres.content2pres ids_to_inner_sorts cobj in
        remove_closed_substs ("\n\n" ^
	   BoxPp.render_to_string (function _::x::_ -> x | _ -> assert false) n (CicNotationPres.mpres_of_box bobj)
	)
     | GrafiteAst.Procedural ->
        let term_pp = term2pres (n - 8) ids_to_inner_sorts in
        let lazy_term_pp = term_pp in
        let obj_pp = CicNotationPp.pp_obj term_pp in
        let aux = GrafiteAstPp.pp_statement ~term_pp ~lazy_term_pp ~obj_pp in
        let script = Content2Procedural.content2procedural ~ids_to_inner_sorts prefix cobj in
	"\n\n" ^ String.concat "" (List.map aux script)