X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fmatita%2FmatitaScript.ml;h=ce613ef7180fd1fdc5b68d9779f338e462393446;hb=583bb775c7dd878823c9bdc3a97463cf8717646b;hp=e76f011ff23ee0b088ba150f317282fd724798c1;hpb=10df455f8e84b4b1f793e26d432dc19ba4ee93a0;p=helm.git

diff --git a/helm/matita/matitaScript.ml b/helm/matita/matitaScript.ml
index e76f011ff..ce613ef71 100644
--- a/helm/matita/matitaScript.ml
+++ b/helm/matita/matitaScript.ml
@@ -396,13 +396,17 @@ List.iter (fun s -> prerr_endline ("'" ^ s ^ "'")) new_statements;
     try
       self#_advance ?statement ();
       self#notify
-    with Margin -> ()
+    with 
+    | Margin -> self#notify
+    | exc -> self#notify; raise exc
 
   method retract () =
     try
       self#_retract ();
       self#notify
-    with Margin -> ()
+    with 
+    | Margin -> self#notify
+    | exc -> self#notify; raise exc
 
   method private getFuture =
     buffer#get_text ~start:(buffer#get_iter_at_mark (`MARK locked_mark))
@@ -499,7 +503,9 @@ List.iter (fun s -> prerr_endline ("'" ^ s ^ "'")) new_statements;
           in
           dowhile (getpos ());
           self#notify 
-        with Margin -> ())
+        with 
+        | Margin -> self#notify
+        | exc -> self#notify; raise exc)
     | `Cursor ->
         let locked_iter () = buffer#get_iter_at_mark (`NAME "locked") in
         let cursor_iter () = buffer#get_iter_at_mark `INSERT in
@@ -521,8 +527,10 @@ List.iter (fun s -> prerr_endline ("'" ^ s ^ "'")) new_statements;
             (back_until_cursor (); self#notify)
           else                  (* cursor = locked *)
               ()
-        with Margin -> ())
-
+        with 
+        | Margin -> self#notify
+        | exc -> self#notify; raise exc)
+              
   method onGoingProof () =
     match self#status.proof_status with
     | No_proof | Proof _ -> false