snapshot (first version in which some extensions work, e.g. infix +)

[helm.git] / helm / ocaml / cic_notation / test_parser.ml

diff --git a/helm/ocaml/cic_notation/test_parser.ml b/helm/ocaml/cic_notation/test_parser.ml
index 99e7371fcee50d0099f1e3a47d785fefd73b6483..c068491a38898c07e5c7fc1f89c263f9d2b688ba 100644 (file)
--- a/helm/ocaml/cic_notation/test_parser.ml
+++ b/helm/ocaml/cic_notation/test_parser.ml
@@ -31,14 +31,48 @@ let loc_of_floc = function
       (loc_begin, loc_end)
 
 let _ =
+  let module P = CicNotationPt in
   let level = ref ~-1 in
   let arg_spec = [ "-level", Arg.Set_int level, "set the notation level" ] in
   let usage = "test_parser -level { 1 | 2 | 3 }" in
   Arg.parse arg_spec (fun _ -> raise (Arg.Bad usage)) usage;
+  if !level = 2 then begin
+    let id =
+      CicNotationParser.extend ~precedence:50 ~associativity:Gramext.LeftA
+        (P.Layout (P.Box (P.H,
+          [ P.Literal (`Symbol "+");
+            P.Magic (P.Opt (P.Variable (P.TermVar "ugo"))) ]
+(*           [ P.Variable (P.TermVar "a");
+            P.Literal (`Symbol "+");
+            P.Variable (P.TermVar "b");
+          ] *)
+            )))
+        (fun env _ ->
+          begin
+          prerr_endline "reducing rule" ;
+          prerr_endline (sprintf "env = [ %s ]" (CicNotationParser.pp_env env));
+(*           match env with
+          [(x, (_, P.OptValue v))] ->
+              begin
+                match v with
+                Some _ -> Printf.printf "Ugo c'e'? %s\n" x; flush stdout
+                | None  -> prerr_endline "nooooo"
+              end
+           | _ -> assert false *)
+          end ;
+          P.Sort `Prop)
+    in
+    CicNotationParser.print_l2_pattern ()
+  end;
   let parse_fun s =
     match !level with
     | 1 -> ignore (CicNotationParser.parse_syntax_pattern s)
-    | 2 -> ignore (CicNotationParser.parse_ast_pattern s)
+    | 2 ->
+        let ast = CicNotationParser.parse_ast_pattern s in
+        if ast = P.Sort `Prop then
+          prerr_endline "eureka (ma sono cazzi)"
+        else
+          prerr_endline ":-("
     | 3 -> ignore (CicNotationParser.parse_interpretation s)
     | _ -> Arg.usage arg_spec usage; exit 1
   in
@@ -50,7 +84,7 @@ let _ =
       let istream = Stream.of_string line in
       try
         parse_fun istream;
-        print_endline "ok"
+        print_endline ">"
       with CicNotationParser.Parse_error (floc, msg) ->
         let (x, y) = loc_of_floc floc in
         let before = String.sub line 0 x in