1 (* Copyright (C) 2005, HELM Team.
3 * This file is part of HELM, an Hypertextual, Electronic
4 * Library of Mathematics, developed at the Computer Science
5 * Department, University of Bologna, Italy.
7 * HELM is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
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13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
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19 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
22 * For details, see the HELM World-Wide-Web page,
23 * http://helm.cs.unibo.it/
29 let level = ref "2@" in
31 let arg_spec = [ "-level", Arg.Set_string level, "set the notation level" ] in
32 let usage = "test_lexer [ -level level ] [ file ]" in
34 if !ic <> stdin then close_in !ic;
37 Arg.parse arg_spec open_file usage;
40 "1" -> CicNotationLexer.level1_pattern_lexer ()
41 | "2@" -> CicNotationLexer.level2_ast_lexer ()
42 | "2$" -> CicNotationLexer.level2_meta_lexer ()
44 prerr_endline (Printf.sprintf "Unsupported level %s" l);
47 let token_stream, loc_func =
48 lexer.Token.tok_func (Obj.magic (Ulexing.from_utf8_channel !ic)) in
49 Printf.printf "Lexing notation level %s\n" !level; flush stdout;
50 let tok_count = ref 0 in
52 let (a,b) = Stream.next token_stream in
53 if a = "EOI" then raise Stream.Failure;
54 let pos = loc_func !tok_count in
55 print_endline (Printf.sprintf "%s '%s' (@ %d-%d)" a b
56 (Stdpp.first_pos pos) (Stdpp.last_pos pos));
62 with Stream.Failure -> ()