From dc2c1fd44709365c30436fdfe320b324b2592ba6 Mon Sep 17 00:00:00 2001
From: Andrea Asperti <andrea.asperti@unibo.it>
Date: Wed, 2 Dec 2009 09:43:20 +0000
Subject: [PATCH] Generalized initialization of eqP.

---
 .../components/ng_paramodulation/nCicBlob.ml  | 33 +++++++++++++------
 1 file changed, 23 insertions(+), 10 deletions(-)

diff --git a/helm/software/components/ng_paramodulation/nCicBlob.ml b/helm/software/components/ng_paramodulation/nCicBlob.ml
index 05867b00e..b02a1ebc0 100644
--- a/helm/software/components/ng_paramodulation/nCicBlob.ml
+++ b/helm/software/components/ng_paramodulation/nCicBlob.ml
@@ -11,8 +11,27 @@
 
 (* $Id: terms.mli 9822 2009-06-03 15:37:06Z tassi $ *)
 
-let reference_of_oxuri = ref (fun _ -> assert false);;
-let set_reference_of_oxuri f = reference_of_oxuri := f;;
+let eqPref = ref (fun _ -> assert false);;
+let set_eqP t = eqPref := fun _ -> t;;
+
+let default_eqP() = 
+  let uri = NUri.uri_of_string "cic:/matita/ng/Plogic/equality/peq.ind" in
+  let ref = NReference.reference_of_spec uri (NReference.Ind(true,0,2)) in
+    NCic.Const ref
+
+let set_default_eqP() = eqPref := default_eqP
+
+let set_reference_of_oxuri f = 
+  let eqnew = function 
+      _ -> 
+	let r = f(UriManager.uri_of_string 
+          "cic:/matita/logic/equality/eq.ind#xpointer(1/1)")
+	in
+	  NCic.Const r
+  in
+    eqPref := eqnew
+;;
+
 
 module type NCicContext =
   sig
@@ -80,14 +99,8 @@ with type t = NCic.term and type input = NCic.term = struct
     let sty = embed sty in
     proof, sty
   ;;
-
-  let eqP = 
-    let r = 
-      !reference_of_oxuri 
-       (UriManager.uri_of_string 
-         "cic:/matita/logic/equality/eq.ind#xpointer(1/1)")
-    in
-    NCic.Const r
+  
+  let eqP = (!eqPref)()
   ;;
 
  end
-- 
2.39.2