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1/* Token type definitions for bison's input reader,
2 Copyright 1984, 1989, 1992, 2000, 2001 Free Software Foundation, Inc.
3
4 This file is part of Bison, the GNU Compiler Compiler.
5
6 Bison is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
9 any later version.
10
11 Bison is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with Bison; see the file COPYING. If not, write to
18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
20
21#ifndef LEX_H_
22# define LEX_H_
23
24/* Token-type codes. */
25typedef enum token_e
26 {
27 tok_undef, /* Not defined. Used to initial token_t vars. */
28 tok_eof,
29 tok_identifier,
30 tok_comma,
31 tok_colon,
32 tok_semicolon,
33 tok_bar,
34 tok_left_curly,
35 tok_two_percents,
36 tok_percent_left_curly,
37 tok_token,
38 tok_nterm,
39 tok_guard,
40 tok_type,
41 tok_union,
42 tok_start,
43 tok_left,
44 tok_right,
45 tok_nonassoc,
46 tok_prec,
47 tok_typename,
48 tok_number,
49 tok_expect,
50 tok_thong,
51 tok_define,
52 tok_skel,
53 tok_noop,
54 tok_intopt,
55 tok_stropt,
56 tok_illegal,
57 tok_obsolete
58 } token_t;
59
60extern const char *token_buffer;
61extern bucket *symval;
62extern int numval;
63
64void lex_init PARAMS ((void));
65void lex_free PARAMS ((void));
66int skip_white_space PARAMS ((void));
67void unlex PARAMS ((token_t));
68void read_type_name PARAMS ((FILE *fin));
69
70/* Return one of the token-type codes. When an identifier is seen,
71 the code IDENTIFIER is returned and the name is looked up in the
72 symbol table using symtab.c; symval is set to a pointer to the
73 entry found. */
74
75token_t lex PARAMS ((void));
76
77token_t parse_percent_token PARAMS ((void));
78
79#endif /* !LEX_H_ */