X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fmatita%2FmatitaMathView.ml;h=28bd1caaa7f35ae3244c3fc19ce93d120fddc656;hb=29a5b18f3da1a3ed648f23709384b7789cb099bf;hp=43547b8ff9e835da80e588d3c1efdd8db659c1bb;hpb=5215754e8ad1c83991135e94ad1e7ab63818d1cb;p=helm.git

diff --git a/helm/matita/matitaMathView.ml b/helm/matita/matitaMathView.ml
index 43547b8ff..28bd1caaa 100644
--- a/helm/matita/matitaMathView.ml
+++ b/helm/matita/matitaMathView.ml
@@ -590,7 +590,10 @@ class cicBrowser_impl ~(history:MatitaTypes.mathViewer_entry MatitaMisc.history)
   let handle_error f =
     try
       f ()
-    with exn -> fail (MatitaExcPp.to_string exn)
+    with exn ->
+      if Helm_registry.get_bool "matita.catch_top_level_exn" then
+        fail (MatitaExcPp.to_string exn)
+      else raise exn
   in
   let handle_error' f = (fun () -> handle_error (fun () -> f ())) in
   let load_easter_egg = lazy (
@@ -701,7 +704,7 @@ class cicBrowser_impl ~(history:MatitaTypes.mathViewer_entry MatitaMisc.history)
       (* loads a uri which can be a cic uri or an about:* uri
       * @param uri string *)
     method private _load ?(force=false) entry =
-      try
+      handle_error (fun () ->
        if entry <> current_entry || entry = `About `Current_proof || force then
         begin
           (match entry with
@@ -717,8 +720,7 @@ class cicBrowser_impl ~(history:MatitaTypes.mathViewer_entry MatitaMisc.history)
               self#_loadList (List.map (fun r -> "obj",
                 UriManager.string_of_uri r) results));
           self#setEntry entry
-        end
-      with exn -> fail (MatitaExcPp.to_string exn)
+        end)
 
     method private blank () =
       self#_showMath;