X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Focaml%2Fcic_proof_checking%2FcicPp.ml;h=effc8a4b58b7450bf71100ea62dc8fc1d97f7610;hb=12cc5b2b8e7f7bb0b5e315094b008a293a4df6b1;hp=d9c669ed570e318173056744488fa88b58ab4876;hpb=e263d21984563a9c8bbbc4900e0b5efd3cbf2da0;p=helm.git

diff --git a/helm/ocaml/cic_proof_checking/cicPp.ml b/helm/ocaml/cic_proof_checking/cicPp.ml
index d9c669ed5..effc8a4b5 100644
--- a/helm/ocaml/cic_proof_checking/cicPp.ml
+++ b/helm/ocaml/cic_proof_checking/cicPp.ml
@@ -89,6 +89,7 @@ let rec pp t l =
          (*| C.Type u -> ("Type" ^ CicUniv.string_of_universe u)*)
 	 | C.CProp -> "CProp" 
        )
+    | C.Implicit (Some `Hole) -> "%"
     | C.Implicit _ -> "?"
     | C.Prod (b,s,t) ->
        (match b with
@@ -273,3 +274,116 @@ let ppsort = function
   | Cic.Type _ -> "Type"
   | Cic.CProp -> "CProp"
 
+
+(* MATITA NAMING CONVENTION *)
+
+let check_name ctx name term =
+  let cut_off_name name string_name =
+    let len = String.length name in
+    let len1 = String.length string_name in
+    if len <= len1 then
+      begin
+        let head = String.sub string_name 0 len in
+	if ((String.compare head name)=0) ||
+	   ((String.compare head (String.lowercase name))=0) then 
+	  begin
+	    let diff = len1-len in
+	    let tail = String.sub string_name len diff in
+	    if ((diff > 0) && (String.rcontains_from tail 0 '_')) then
+	      String.sub tail 1 (diff-1)
+	    else tail
+	  end
+	else string_name
+      end
+    else string_name in
+  let rec check_aux ctx string_name =
+    function
+      | Cic.Rel m -> 
+	  (match List.nth ctx (m-1) with
+	       Cic.Name name ->
+		 cut_off_name name string_name
+	     | Cic.Anonymous -> string_name)
+      | Cic.Meta _ -> string_name
+      | Cic.Sort sort -> cut_off_name (ppsort sort) string_name  
+      | Cic.Implicit _ -> string_name
+      | Cic.Cast (te,ty) -> check_aux ctx string_name te
+      | Cic.Prod (name,so,dest) -> 
+	  let string_name = check_aux ctx string_name so in
+	  check_aux (name::ctx) string_name dest
+      | Cic.Lambda (name,so,dest) -> 
+          let string_name =
+           match name with
+              Cic.Anonymous -> string_name
+            | Cic.Name name -> cut_off_name name string_name in
+          let string_name = check_aux ctx string_name so in
+	  check_aux (name::ctx) string_name dest
+      | Cic.LetIn (name,so,dest) -> 
+          let string_name = check_aux ctx string_name so in
+	  check_aux (name::ctx) string_name dest
+      | Cic.Appl l ->
+	  List.fold_left (check_aux ctx) string_name l
+      | Cic.Var (uri,exp_named_subst) ->
+	  let name = UriManager.name_of_uri uri in
+	  cut_off_name name string_name
+      | Cic.Const (uri,exp_named_subst) ->
+	  let name = UriManager.name_of_uri uri in
+	  cut_off_name name string_name
+      | Cic.MutInd (uri,_,exp_named_subst) -> 
+	  let name = UriManager.name_of_uri uri in
+	  cut_off_name name string_name  
+      | Cic.MutConstruct (uri,n,m,exp_named_subst) ->
+	  let name =
+            (match fst(CicEnvironment.get_obj CicUniv.empty_ugraph uri) with
+		Cic.InductiveDefinition (dl,_,_,_) ->
+		  let (_,_,_,cons) = get_nth dl (n+1) in
+		  let (id,_) = get_nth cons m in
+		    id 
+	       | _ -> assert false) in
+	  cut_off_name name string_name  
+      | Cic.MutCase (_,_,_,te,pl) ->
+	  let strig_name = cut_off_name "match" string_name in
+	  let string_name = check_aux ctx string_name te in
+          List.fold_right (fun t s -> check_aux ctx s t) pl string_name
+      | Cic.Fix (_,fl) ->
+          let strig_name = cut_off_name "fix" string_name in
+          let names = List.map (fun (name,_,_,_) -> name) fl in
+          let onames =
+            List.rev (List.map (function name -> Cic.Name name) names)
+          in
+          List.fold_right 
+	    (fun (_,_,_,bo) s -> check_aux (onames@ctx) s bo) fl string_name
+      | Cic.CoFix (_,fl) ->
+	  let strig_name = cut_off_name "cofix" string_name in
+          let names = List.map (fun (name,_,_) -> name) fl in
+          let onames =
+            List.rev (List.map (function name -> Cic.Name name) names)
+          in
+          List.fold_right 
+	    (fun (_,_,bo) s -> check_aux (onames@ctx) s bo) fl string_name
+  in
+  if (String.length (check_aux ctx name term) = 0) then true 
+  else false
+
+let rec check_names ctx hyp_names conclusion_name t =
+  match t with
+    | Cic.Prod (name,s,t) -> 
+	(match hyp_names with
+	     [] -> check_names (name::ctx) hyp_names conclusion_name t
+	   | hd::tl ->
+	       if check_name ctx hd s then 
+		 check_names (name::ctx) tl conclusion_name t
+	       else 
+		 check_names (name::ctx) hyp_names conclusion_name t)
+    | _ -> 
+	hyp_names=[] && (check_name ctx conclusion_name t)
+
+let check name term =
+  let names = Str.split (Str.regexp_string "_to_") name in
+  let hyp_names,conclusion_name =
+    match List.rev names with
+	[] -> assert false
+      | hd::tl -> (List.rev tl),hd in
+  check_names [] hyp_names conclusion_name term
+;;
+
+