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 CicNotationEnv.set_pp_term CicNotationPp.pp_term;
30 let module P = CicNotationPt in
31 let level = ref ~-1 in
32 let arg_spec = [ "-level", Arg.Set_int level, "set the notation level" ] in
33 let usage = "test_parser -level { 1 | 2 | 3 }" in
34 Arg.parse arg_spec (fun _ -> raise (Arg.Bad usage)) usage;
35 if !level = 2 then begin
37 CicNotationParser.extend ~precedence:50 ~associativity:Gramext.LeftA
38 (P.Layout (P.Box (P.H,
42 (P.Layout (P.Box (P.H,
43 [ P.Literal (`Symbol "|");
44 P.Variable (P.TermVar "ugo");
45 P.Magic (P.Opt (P.Layout (P.Box (P.H,
46 [ P.Literal (`Symbol ",");
47 P.Variable (P.TermVar "pino")]))));
48 P.Literal (`Symbol "|");
51 (* P.Literal (`Symbol "+");
52 P.Magic (P.Opt (P.Layout (P.Box (P.H,
54 P.Variable (P.TermVar "ugo");
55 P.Literal (`Symbol "+");
56 P.Variable (P.TermVar "pino")
58 (* P.Variable (P.TermVar "a");
59 P.Literal (`Symbol "+");
60 P.Variable (P.TermVar "b"); *)
63 prerr_endline "reducing rule" ;
64 prerr_endline (sprintf "env = [ %s ]" (CicNotationPp.pp_env env));
67 CicNotationParser.print_l2_pattern ()
71 printf "Parsing notation level %d\n" !level; flush stdout;
73 let line = input_line ic in
74 let istream = Stream.of_string line in
78 (match CicNotationParser.parse_phrase istream with
80 print_endline (CicNotationPp.pp_term t); flush stdout
81 | P.Notation (l1, associativity, precedence, l2) ->
83 print_endline "Extending notation ..."; flush stdout;
85 (CicNotationParser.extend l1 ?precedence ?associativity
88 prerr_endline (CicNotationPp.pp_env env);
89 CicNotationEnv.instantiate env l2)))
90 (* CicNotationParser.print_l2_pattern ()) *)
91 | 1 -> ignore (CicNotationParser.parse_syntax_pattern istream)
93 let ast = CicNotationParser.parse_ast_pattern istream in
94 if ast = P.Sort `Prop then
95 prerr_endline "eureka"
98 | 3 -> ignore (CicNotationParser.parse_interpretation istream)
99 | _ -> Arg.usage arg_spec usage; exit 1);
100 with CicNotationParser.Parse_error (floc, msg) ->
101 let (x, y) = P.loc_of_floc floc in
102 let before = String.sub line 0 x in
103 let error = String.sub line x (y - x) in
104 let after = String.sub line y (String.length line - y) in
105 eprintf "%s
\e[01;31m%s
\e[00m%s\n" before error after;
106 prerr_endline (sprintf "at character %d-%d: %s" x y msg)