X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2FgTopLevel%2Fhbugs.ml;h=35937b9b98d0aa19ed4987008bff87802de2ca9a;hb=741b3e9014f940fbbd34bee7b606ff7e72170452;hp=833d11bfd9968e21ebba6db6021f97167e50763f;hpb=6bfd11a764024577d1a427d9b6e3074d66ff09fa;p=helm.git

diff --git a/helm/gTopLevel/hbugs.ml b/helm/gTopLevel/hbugs.ml
index 833d11bfd..35937b9b9 100644
--- a/helm/gTopLevel/hbugs.ml
+++ b/helm/gTopLevel/hbugs.ml
@@ -43,74 +43,76 @@ let describe_hint_callback = ref ignore
 let set_describe_hint_callback c = describe_hint_callback := c
 
 let quit () =
-	match !hbugs_client with
-	| Some c -> c#unregisterFromBroker ()
-	| None -> ()
+  match !hbugs_client with
+  | Some c -> c#unregisterFromBroker ()
+  | None -> ()
 
 let hbugs_enabled = ref false
 
 let get_hbugs_client () =
-	match !hbugs_client with
-	| Some c -> c
-	| None -> assert false
+  match !hbugs_client with
+  | Some c -> c
+  | None -> assert false
 
 let disable () =
-	match !hbugs_client with None -> () | Some c -> c#hide ()
+  match !hbugs_client with None -> () | Some c -> c#hide ()
 
 let notify () =
-	try
-		if !hbugs_enabled then begin
-			let client = get_hbugs_client () in
-			let goal =
-				match !ProofEngine.goal with
-				| Some g -> g
-				| None -> raise NoProofInProgress
-			in
-			let (type_string, body_string) =
-				let (type_xml, body_xml) = ProofEngine.get_current_status_as_xml () in
-				(Xml.pp_to_string type_xml, Xml.pp_to_string body_xml)
-			in
-			let new_state =
-				(Misc.strip_xml_headings type_string,
-				 Misc.strip_xml_headings body_string,
-				 goal)
-			in
-			client#stateChange (Some new_state)
-		end
-	with NoProofInProgress -> ()
+  try
+    if !hbugs_enabled then begin
+      let client = get_hbugs_client () in
+      let goal =
+        match !ProofEngine.goal with
+        | Some g -> g
+        | None -> raise NoProofInProgress
+      in
+      let (type_string, body_string) =
+        let (type_xml, body_xml) = ProofEngine.get_current_status_as_xml () in
+        (Xml.pp_to_string type_xml, Xml.pp_to_string body_xml)
+      in
+      let new_state =
+        (Misc.strip_xml_headings type_string,
+         Misc.strip_xml_headings body_string,
+         goal)
+      in
+      client#stateChange (Some new_state)
+    end
+  with NoProofInProgress -> ()
 
 let clear () =
  if !hbugs_enabled then
   begin
-	 let client = get_hbugs_client () in
-	  client#stateChange None
+   let client = get_hbugs_client () in
+    client#stateChange None
   end
 
 let rec enable () =
-	(match !hbugs_client with
-	| None -> (* create an hbugs client and show its window *)
-			hbugs_client :=
-				(try
-					Some (new Hbugs_client.hbugsClient
+  (match !hbugs_client with
+  | None -> (* create an hbugs client and show its window *)
+      hbugs_client :=
+        (try
+          Some (new Hbugs_client.hbugsClient
             ~use_hint_callback:!use_hint_callback
             ~describe_hint_callback:!describe_hint_callback
               ())
-				with e ->
-					prerr_endline (sprintf "Can't start HBugs client: %s"
-						(Printexc.to_string e));
-					None);
-			(match !hbugs_client with
-			|Some client ->
-					client#show ();
-					client#subscribeAll ()
-			| None -> ())
-	| Some c -> (* show hbugs client window *)
-			c#show ())
+        with e ->
+          prerr_endline (sprintf "Can't start HBugs client: %s"
+            (Printexc.to_string e));
+          None);
+      (match !hbugs_client with
+      |Some client ->
+          client#show ();
+          client#subscribeAll ()
+      | None -> ())
+  | Some c -> (* show hbugs client window *)
+      c#show ())
 
 let toggle state =
-	if state <> !hbugs_enabled then (* status has been changed *)
-		(if state then enable () else disable ());
-	hbugs_enabled := state
+  if state <> !hbugs_enabled then begin (* status has been changed *)
+    if state then enable () else disable ();
+    clear ()
+  end;
+  hbugs_enabled := state
 
 module type Unit = sig end