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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28 (* cut and past from CicAst.loc_of_floc *)
29 let loc_of_floc = function
30 | { Lexing.pos_cnum = loc_begin }, { Lexing.pos_cnum = loc_end } ->
34 let level = ref ~-1 in
35 let arg_spec = [ "-level", Arg.Set_int level, "set the notation level" ] in
36 let usage = "test_parser -level { 1 | 2 | 3 }" in
37 Arg.parse arg_spec (fun _ -> raise (Arg.Bad usage)) usage;
40 | 1 -> CicNotationParser.parse_syntax_pattern
41 | 2 -> CicNotationParser.parse_ast_pattern
42 | _ -> Arg.usage arg_spec usage; exit 1
46 printf "Parsing notation level %d\n" !level; flush stdout;
48 let line = input_line ic in
49 let istream = Stream.of_string line in
51 let _ = parse_fun istream in
53 with CicNotationParser.Parse_error (floc, msg) ->
54 let (x, y) = loc_of_floc floc in
55 let before = String.sub line 0 x in
56 let error = String.sub line x (y - x) in
57 let after = String.sub line y (String.length line - y) in
58 eprintf "%s
\e[01;31m%s
\e[00m%s\n" before error after;
59 prerr_endline (sprintf "at character %d-%d: %s" x y msg)