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[helm.git] / helm / software / components / ng_tactics / nCicElim.ml

diff --git a/helm/software/components/ng_tactics/nCicElim.ml b/helm/software/components/ng_tactics/nCicElim.ml
index d5cbca892e15f045d446e82903dbbdd84106cfdf..4117c4ffa48423e9cff889e3822dc04f47b98e08 100644 (file)
--- a/helm/software/components/ng_tactics/nCicElim.ml
+++ b/helm/software/components/ng_tactics/nCicElim.ml
@@ -154,19 +154,24 @@ let mk_elim uri leftno it (outsort,suffix) =
 ;;
 
 let ast_of_sort s =
+  let headrm prefix s =
+    try 
+      let len_prefix = String.length prefix in 
+      assert (String.sub s 0 len_prefix = prefix);
+      String.sub s len_prefix (String.length s - len_prefix)
+    with Invalid_argument _ -> assert false
+  in
   match s with
-     NCic.Prop -> `Prop,"ind"
-   | NCic.Type u ->
-      let u = NCicPp.ppterm ~metasenv:[] ~subst:[] ~context:[] (NCic.Sort s) in
-      (try
-        if String.sub u 0 4 = "Type" then
-         `NType (String.sub u 4 (String.length u - 4)), "rect_" ^ u
-        else if String.sub u 0 5 = "CProp" then
-         `NCProp (String.sub u 5 (String.length u - 5)), "rect_" ^ u
-        else
-         (prerr_endline u;
-         assert false)
-       with Failure _ -> assert false)
+   | NCic.Prop -> `Prop,"ind"
+   | NCic.Type []  -> `NType "", "rect_Type"
+   | NCic.Type ((`Type,u) :: _) ->
+       let name = NUri.name_of_uri u in
+       `NType (headrm "Type" name), "rect_" ^ name
+   | NCic.Type ((`CProp,u) :: _) ->
+       let name = NUri.name_of_uri u in
+       `NCProp (headrm "Type" name), 
+       "rect_" ^ Str.replace_first (Str.regexp "Type") "CProp" name
+   | _ -> assert false
 ;;
 
 let mk_elims (uri,_,_,_,obj) =