X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fcomponents%2Fng_kernel%2FnReference.ml;h=bd171ef2996d12905fef27d116bf1f655cd8cb66;hb=e48acbc0d00717ce8f12412673ece4e4ee0e9642;hp=4ecf746456504c3475fb206f7bba360aa10d3e7b;hpb=09dc8295b3ec33bfa731189788330ba21b5f1428;p=helm.git

diff --git a/helm/software/components/ng_kernel/nReference.ml b/helm/software/components/ng_kernel/nReference.ml
index 4ecf74645..bd171ef29 100644
--- a/helm/software/components/ng_kernel/nReference.ml
+++ b/helm/software/components/ng_kernel/nReference.ml
@@ -1,27 +1,15 @@
-(* 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/.
- *)
+(*
+    ||M||  This file is part of HELM, an Hypertextual, Electronic        
+    ||A||  Library of Mathematics, developed at the Computer Science     
+    ||T||  Department, University of Bologna, Italy.                     
+    ||I||                                                                
+    ||T||  HELM is free software; you can redistribute it and/or         
+    ||A||  modify it under the terms of the GNU General Public License   
+    \   /  version 2 or (at your option) any later version.      
+     \ /   This software is distributed as is, NO WARRANTY.     
+      V_______________________________________________________________ *)
+
+(* $Id$ *)
 
 exception IllFormedReference of string Lazy.t
 
@@ -30,7 +18,7 @@ type spec =
  | Def
  | Fix of int * int (* fixno, recparamno *)
  | CoFix of int
- | Ind of int
+ | Ind of bool * int (* inductive, indtyno *)
  | Con of int * int (* indtyno, constrno *)
 
 type reference = Ref of int * NUri.uri * spec
@@ -91,7 +79,7 @@ fun s ->
         | "def" -> Ref (c (), u, Def)
         | "fix" -> let i,j = get2 s dot in Ref (c (), u, Fix (i,j))
         | "cfx" -> let i = get1 s dot in Ref (c (), u, CoFix (i))
-        | "ind" -> let i = get1 s dot in Ref (c (), u, Ind (i))
+        | "ind" -> let b,i = get2 s dot in Ref (c (), u, Ind (b=1,i))
         | "con" -> let i,j = get2 s dot in Ref (c (), u, Con (i,j))
         | _ -> raise Not_found
       with Not_found -> raise (IllFormedReference (lazy s))
@@ -109,19 +97,31 @@ let string_of_reference (Ref (_,u,indinfo)) =
   | Def -> s2 ^ ".def"
   | Fix (i,j)  -> s2 ^ ".fix(" ^ string_of_int i ^ "," ^ string_of_int j ^ ")"
   | CoFix i -> s2 ^ ".cfx(" ^ string_of_int i ^ ")"
-  | Ind i -> s2 ^ ".ind(" ^ string_of_int i ^ ")"
+  | Ind (b,i)->s2 ^".ind(" ^(if b then "1" else "0")^ "," ^ string_of_int i ^")"
   | Con (i,j) -> s2 ^ ".con(" ^ string_of_int i ^ "," ^ string_of_int j ^ ")"
 ;;
 
 let mk_constructor j = function
-  | Ref (d, u, Ind i) -> 
+  | Ref (d, u, Ind (_,i)) -> 
       reference_of_string (string_of_reference (Ref (d, u, Con (i,j))))
   | _ -> assert false
 ;;
 
+let mk_fix i j = function
+  | Ref (d, u, Fix _) -> 
+      reference_of_string (string_of_reference (Ref (d, u, Fix (i,j))))
+  | _ -> assert false
+;;
+
+let mk_cofix i = function
+  | Ref (d, u, CoFix _) -> 
+      reference_of_string (string_of_reference (Ref (d, u, CoFix i)))
+  | _ -> assert false
+;;
+
 let reference_of_ouri u indinfo =
   let u = NUri.nuri_of_ouri u in
-  reference_of_string (string_of_reference (Ref (~-1,u,indinfo)))
+  reference_of_string (string_of_reference (Ref (max_int,u,indinfo)))
 ;;
 
 let ouri_of_reference (Ref (_,u,_)) = NUri.ouri_of_nuri u;;