(* Copyright (C) 2000, 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://cs.unibo.it/helm/.
 *)

(*CSC codice cut & paste da cicPp e xmlcommand *)

exception NotImplemented;;

let dtdname = "http://www.cs.unibo.it/helm/dtd/annotations.dtd";;

(*CSC ottimizzazione: al posto di curi cdepth (vedi codice) *)
let print_term =
 let rec aux =
  let module C = Cic in
  let module X = Xml in
  let module U = UriManager in
    function
       C.ARel (id,ann,_,_) ->
        (match !ann with
            None -> [<>]
          | Some ann -> (X.xml_nempty "Annotation" ["of", id] (X.xml_cdata ann))
        )
     | C.AVar (id,ann,_) ->
        (match !ann with
            None -> [<>]
          | Some ann -> (X.xml_nempty "Annotation" ["of", id] (X.xml_cdata ann))
        )
     | C.AMeta (id,ann,_) ->
        (match !ann with
            None -> [<>]
          | Some ann -> (X.xml_nempty "Annotation" ["of", id] (X.xml_cdata ann))
        )
     | C.ASort (id,ann,_) ->
        (match !ann with
            None -> [<>]
          | Some ann -> (X.xml_nempty "Annotation" ["of", id] (X.xml_cdata ann))
        )
     | C.AImplicit _ -> raise NotImplemented
     | C.AProd (id,ann,_,s,t) ->
        [< (match !ann with
               None -> [<>]
             | Some ann ->
                (X.xml_nempty "Annotation" ["of", id] (X.xml_cdata ann))
           ) ;
           aux s ;
           aux t
        >]
     | C.ACast (id,ann,v,t) ->
        [< (match !ann with
               None -> [<>]
             | Some ann ->
                (X.xml_nempty "Annotation" ["of", id] (X.xml_cdata ann))
           ) ;
           aux v ;
           aux t
        >]
     | C.ALambda (id,ann,_,s,t) ->
        [< (match !ann with
               None -> [<>]
             | Some ann ->
                (X.xml_nempty "Annotation" ["of", id] (X.xml_cdata ann))
           ) ;
           aux s ;
           aux t
        >]
     | C.ALetIn (id,ann,_,s,t) ->
        [< (match !ann with
               None -> [<>]
             | Some ann ->
                (X.xml_nempty "Annotation" ["of", id] (X.xml_cdata ann))
           ) ;
           aux s ;
           aux t
        >]
     | C.AAppl (id,ann,li) ->
        [< (match !ann with
               None -> [<>]
             | Some ann ->
                (X.xml_nempty "Annotation" ["of", id] (X.xml_cdata ann))
           ) ;
           List.fold_right (fun x i -> [< (aux x) ; i >]) li [<>]
        >]
     | C.AConst (id,ann,_,_) ->
        (match !ann with
            None -> [<>]
          | Some ann -> (X.xml_nempty "Annotation" ["of", id] (X.xml_cdata ann))
        )
     | C.AAbst (id,ann,_) -> raise NotImplemented
     | C.AMutInd (id,ann,_,_,_) ->
        (match !ann with
            None -> [<>]
          | Some ann -> (X.xml_nempty "Annotation" ["of", id] (X.xml_cdata ann))
        )
     | C.AMutConstruct (id,ann,_,_,_,_) ->
        (match !ann with
            None -> [<>]
          | Some ann -> (X.xml_nempty "Annotation" ["of", id] (X.xml_cdata ann))
        )
     | C.AMutCase (id,ann,_,_,_,ty,te,patterns) ->
        [< (match !ann with
               None -> [<>]
             | Some ann ->
                (X.xml_nempty "Annotation" ["of", id] (X.xml_cdata ann))
           ) ;
           aux ty ;
           aux te ;
           List.fold_right
            (fun x i -> [< aux x ; i>])
            patterns [<>]
        >]
     | C.AFix (id, ann, _, funs) ->
        [< (match !ann with
               None -> [<>]
             | Some ann ->
                (X.xml_nempty "Annotation" ["of", id] (X.xml_cdata ann))
           ) ;
           List.fold_right
            (fun (_,_,ti,bi) i -> [< aux ti ; aux bi ; i >]) funs [<>]
        >]
     | C.ACoFix (id, ann,no,funs) ->
        [< (match !ann with
               None -> [<>]
             | Some ann ->
                (X.xml_nempty "Annotation" ["of", id] (X.xml_cdata ann))
           ) ;
           List.fold_right
            (fun (_,ti,bi) i -> [< aux ti ; aux bi ; i >]) funs [<>]
        >]
 in
  aux
;;

let print_mutual_inductive_type (_,_,arity,constructors) =
 [< print_term arity ;
    List.fold_right
     (fun (name,ty,_) i -> [< print_term ty ; i >]) constructors [<>]
 >]
;;

let pp_annotation obj curi =
 let module C = Cic in
 let module X = Xml in
  [< X.xml_cdata "<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>\n" ;
     X.xml_cdata ("<!DOCTYPE Annotations SYSTEM \"" ^ dtdname ^ "\">\n\n") ;
     X.xml_nempty "Annotations"
      ["of", UriManager.string_of_uri (UriManager.cicuri_of_uri curi)]
      begin
       match obj with
         C.ADefinition (xid, ann, _, te, ty, _) ->
          [< (match !ann with
                 None -> [<>]
               | Some ann ->
                  X.xml_nempty "Annotation" ["of", xid] (X.xml_cdata ann)
             ) ;
             print_term te ;
             print_term ty
          >]
       | C.AAxiom (xid, ann, _, ty, _) ->
          [< (match !ann with
                 None -> [<>]
               | Some ann ->
                  X.xml_nempty "Annotation" ["of", xid] (X.xml_cdata ann)
             ) ;
             print_term ty
          >]
       | C.AVariable (xid, ann, _, bo, ty) ->
          [< (match !ann with
                 None -> [<>]
               | Some ann ->
                  X.xml_nempty "Annotation" ["of", xid] (X.xml_cdata ann)
             ) ;
             (match bo with
                 None -> [<>]
               | Some bo -> print_term bo
             ) ;
             print_term ty
          >]
       | C.ACurrentProof (xid, ann, _, conjs, bo, ty) ->
          [< (match !ann with
                 None -> [<>]
               | Some ann ->
                  X.xml_nempty "Annotation" ["of", xid] (X.xml_cdata ann)
             ) ;
             List.fold_right
              (fun (_,t) i -> [< print_term t ; i >])
              conjs [<>] ;
             print_term bo ;
             print_term ty
          >]
       | C.AInductiveDefinition (xid, ann, tys, params, paramsno) ->
          [< (match !ann with
                 None -> [<>]
               | Some ann ->
                  X.xml_nempty "Annotation" ["of", xid] (X.xml_cdata ann)
             ) ;
             List.fold_right
              (fun x i -> [< print_mutual_inductive_type x ; i >])
              tys [< >]
          >]
      end
  >]
;;