1 (* Copyright (C) 2005, HELM Team.
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4 * Library of Mathematics, developed at the Computer Science
5 * Department, University of Bologna, Italy.
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15 * GNU General Public License for more details.
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29 let module P = CicNotationPt in
30 let level = ref ~-1 in
31 let arg_spec = [ "-level", Arg.Set_int level, "set the notation level" ] in
32 let usage = "test_parser -level { 1 | 2 | 3 }" in
33 Arg.parse arg_spec (fun _ -> raise (Arg.Bad usage)) usage;
34 if !level = 2 then begin
36 CicNotationParser.extend ~precedence:50 ~associativity:Gramext.LeftA
37 (P.Layout (P.Box (P.H,
41 (P.Layout (P.Box (P.H,
42 [ P.Literal (`Symbol "|");
43 P.Variable (P.TermVar "ugo");
44 P.Magic (P.Opt (P.Layout (P.Box (P.H,
45 [ P.Literal (`Symbol ",");
46 P.Variable (P.TermVar "pino")]))));
47 P.Literal (`Symbol "|");
50 (* P.Literal (`Symbol "+");
51 P.Magic (P.Opt (P.Layout (P.Box (P.H,
53 P.Variable (P.TermVar "ugo");
54 P.Literal (`Symbol "+");
55 P.Variable (P.TermVar "pino")
57 (* P.Variable (P.TermVar "a");
58 P.Literal (`Symbol "+");
59 P.Variable (P.TermVar "b"); *)
62 prerr_endline "reducing rule" ;
63 prerr_endline (sprintf "env = [ %s ]" (CicNotationPp.pp_env env));
66 CicNotationParser.print_l2_pattern ()
70 printf "Parsing notation level %d\n" !level; flush stdout;
72 let line = input_line ic in
73 let istream = Stream.of_string line in
77 (match CicNotationParser.parse_phrase istream with
79 print_endline (CicNotationPp.pp_term t); flush stdout
80 | P.Notation (l1, associativity, precedence, l2) ->
82 print_endline "Extending notation ..."; flush stdout;
84 (CicNotationParser.extend l1 ?precedence ?associativity
87 prerr_endline (CicNotationPp.pp_env env);
88 CicNotationSubst.instantiate_level2 env l2)))
89 (* CicNotationParser.print_l2_pattern ()) *)
90 | 1 -> ignore (CicNotationParser.parse_syntax_pattern istream)
92 let ast = CicNotationParser.parse_ast_pattern istream in
93 if ast = P.Sort `Prop then
94 prerr_endline "eureka"
97 | 3 -> ignore (CicNotationParser.parse_interpretation istream)
98 | _ -> Arg.usage arg_spec usage; exit 1);
99 with CicNotationParser.Parse_error (floc, msg) ->
100 let (x, y) = P.loc_of_floc floc in
101 let before = String.sub line 0 x in
102 let error = String.sub line x (y - x) in
103 let after = String.sub line y (String.length line - y) in
104 eprintf "%s
\e[01;31m%s
\e[00m%s\n" before error after;
105 prerr_endline (sprintf "at character %d-%d: %s" x y msg)