X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;ds=sidebyside;f=helm%2Focaml%2Fcic_notation%2FcicNotationUtil.ml;h=e4145e118984e5311195000ea52d9b5edd7720b9;hb=2c5fc1a1783fc82d6a6b120b122a43a47f7cc5e0;hp=d3a87dfc1845402959012693d859361303671172;hpb=7df7f06d2bc2a3fe1fe95aab957cef480d27eb86;p=helm.git

diff --git a/helm/ocaml/cic_notation/cicNotationUtil.ml b/helm/ocaml/cic_notation/cicNotationUtil.ml
index d3a87dfc1..e4145e118 100644
--- a/helm/ocaml/cic_notation/cicNotationUtil.ml
+++ b/helm/ocaml/cic_notation/cicNotationUtil.ml
@@ -25,13 +25,6 @@
 
 open CicNotationPt
 
-  (* TODO ensure that names generated by fresh_var do not clash with user's *)
-let fresh_name =
-  let index = ref ~-1 in
-  fun () ->
-    incr index;
-    "fresh" ^ string_of_int !index
-
 (* let meta_names_of term = *)
 (*   let rec names = ref [] in *)
 (*   let add_name n = *)
@@ -105,6 +98,7 @@ let visit_ast ?(special_k = fun _ -> assert false) k =
         Binder (kind, aux_capture_variable var, k body) 
     | Case (term, indtype, typ, patterns) ->
         Case (k term, indtype, aux_opt typ, aux_patterns patterns)
+    | Cast (t1, t2) -> Cast (k t1, k t2)
     | LetIn (var, t1, t2) -> LetIn (aux_capture_variable var, k t1, k t2)
     | LetRec (kind, definitions, term) ->
         let definitions =
@@ -325,6 +319,10 @@ let boxify = function
   | [ a ] -> a
   | l -> Layout (Box ((H, false, false), l))
 
+let unboxify = function
+  | Layout (Box ((H, false, false), [ a ])) -> a
+  | l -> l
+
 let group = function
   | [ a ] -> a
   | l -> Layout (Group l)
@@ -338,7 +336,7 @@ let ungroup =
   in
     aux []
 
-let dress sauce =
+let dress ~sep:sauce =
   let rec aux =
     function
       | [] -> []
@@ -347,6 +345,15 @@ let dress sauce =
   in
     aux
 
+let dressn ~sep:sauces =
+  let rec aux =
+    function
+      | [] -> []
+      | [hd] -> [hd]
+      | hd :: tl -> hd :: sauces @ aux tl
+  in
+    aux
+
 let find_appl_pattern_uris ap =
   let rec aux acc =
     function
@@ -355,6 +362,7 @@ let find_appl_pattern_uris ap =
           ignore (List.find (fun uri' -> UriManager.eq uri uri') acc);
           acc
         with Not_found -> uri :: acc)
+    | ImplicitPattern
     | VarPattern _ -> acc
     | ApplPattern apl -> List.fold_left aux acc apl
   in
@@ -365,3 +373,26 @@ let rec find_branch =
       Magic (If (_, Magic Fail, t)) -> find_branch t
     | Magic (If (_, t, _)) -> find_branch t
     | t -> t
+
+let cic_name_of_name = function
+  | CicNotationPt.Ident ("_", None) -> Cic.Anonymous
+  | CicNotationPt.Ident (name, None) -> Cic.Name name
+  | _ -> assert false
+
+let name_of_cic_name =
+  let add_dummy_xref t = CicNotationPt.AttributedTerm (`IdRef "", t) in
+  function
+  | Cic.Name s -> add_dummy_xref (CicNotationPt.Ident (s, None))
+  | Cic.Anonymous -> add_dummy_xref (CicNotationPt.Ident ("_", None))
+
+let fresh_index = ref ~-1
+
+type notation_id = int
+
+let fresh_id () =
+  incr fresh_index;
+  !fresh_index
+
+  (* TODO ensure that names generated by fresh_var do not clash with user's *)
+let fresh_name () = "fresh" ^ string_of_int (fresh_id ())
+