X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fcomponents%2Fcic%2FlibraryObjects.ml;h=223b24edd95c1b0fb2140083a7bd7195998db230;hb=15469f16ff6f86c6cc0107070775b6c03c0ec478;hp=adbc219cc3fd72771b314a3e61eeea85a98cfc52;hpb=55b82bd235d82ff7f0a40d980effe1efde1f5073;p=helm.git

diff --git a/helm/software/components/cic/libraryObjects.ml b/helm/software/components/cic/libraryObjects.ml
index adbc219cc..223b24edd 100644
--- a/helm/software/components/cic/libraryObjects.ml
+++ b/helm/software/components/cic/libraryObjects.ml
@@ -53,7 +53,7 @@ let absurd_URIs_ref = ref [HelmLibraryObjects.Logic.absurd_URI]
 
 (**** SET_DEFAULT ****)
 
-exception NotRecognized;;
+exception NotRecognized of string;;
 
 (* insert an element in front of the list, removing from the list all the
    previous elements with the same key associated *)
@@ -76,7 +76,7 @@ let set_default what l =
       false_URIs_ref := insert_unique false_URI (fun x -> x) !false_URIs_ref
   | "absurd",[absurd_URI] ->
       absurd_URIs_ref := insert_unique absurd_URI (fun x -> x) !absurd_URIs_ref
-  | _,_ -> raise NotRecognized
+  | _,_ -> raise (NotRecognized what)
 
 let reset_defaults () =
   eq_URIs_ref := default_eq_URIs;
@@ -96,26 +96,30 @@ let is_eq_ind_URI uri =
 
 let is_eq_ind_r_URI uri =
  List.exists (fun (_,_,_,_,eq_ind_r) -> UriManager.eq eq_ind_r uri) !eq_URIs_ref
+let is_trans_eq_URI uri = 
+ List.exists (fun (_,_,trans_eq,_,_) -> UriManager.eq trans_eq uri) !eq_URIs_ref
+let is_sym_eq_URI uri =
+ List.exists (fun (_,sym_eq,_,_,_) -> UriManager.eq sym_eq uri) !eq_URIs_ref
 
 let sym_eq_URI ~eq:uri =
  try
   let _,x,_,_,_ = List.find (fun eq,_,_,_,_ -> UriManager.eq eq uri) !eq_URIs_ref in x
- with Not_found -> raise NotRecognized
+ with Not_found -> raise (NotRecognized (UriManager.string_of_uri uri))
 
 let trans_eq_URI ~eq:uri =
  try
   let _,_,x,_,_ = List.find (fun eq,_,_,_,_ -> UriManager.eq eq uri) !eq_URIs_ref in x
- with Not_found -> raise NotRecognized
+ with Not_found -> raise (NotRecognized (UriManager.string_of_uri uri))
 
 let eq_ind_URI ~eq:uri =
  try
   let _,_,_,x,_ = List.find (fun eq,_,_,_,_ -> UriManager.eq eq uri) !eq_URIs_ref in x
- with Not_found -> raise NotRecognized
+ with Not_found -> raise (NotRecognized (UriManager.string_of_uri uri))
 
 let eq_ind_r_URI ~eq:uri =
  try
   let _,_,_,_,x = List.find (fun eq,_,_,_,_ -> UriManager.eq eq uri) !eq_URIs_ref in x
- with Not_found -> raise NotRecognized
+ with Not_found -> raise (NotRecognized (UriManager.string_of_uri uri))
 
 let true_URI () = List.hd !true_URIs_ref
 let false_URI () = List.hd !false_URIs_ref