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/* scanners.h -- defs for interface to scanners.c
Copyright (C) 1986, 1995-1996, 1999, 2007-2012 Free Software Foundation,
Inc.
Written by Greg McGary <gkm@gnu.ai.mit.edu>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _scanners_h_
#define _scanners_h_
#include "obstack.h"
extern size_t log_8_member_files; /* log base 8 of the # of files.
e.g., log_8 (32768) == 5 */
struct token
{
unsigned short tok_count;
unsigned char tok_flags;
unsigned char tok_hits_name[1];
};
#define TOKEN_HITS(TOKEN) ((TOKEN)->tok_hits_name)
#define TOKEN_NAME(TOKEN) (char *)((TOKEN)->tok_hits_name + log_8_member_files)
#define OFFSETOF_TOKEN_NAME (offsetof (struct token, tok_hits_name) + log_8_member_files)
typedef struct token *(*get_token_func_t) (FILE *in_FILE, void const *args, int *flags);
typedef void *(*parse_args_func_t) (char **argv, int argc);
typedef void (*help_me_func_t) (void);
struct language
{
char const *lg_name;
parse_args_func_t lg_parse_args;
get_token_func_t lg_get_token;
help_me_func_t lg_help_me;
int lg_argc;
char *lg_argv[16];
};
struct lang_args
{
struct language const *la_language;
char const *la_pattern; /* fnmatch(3) pattern */
char *la_args_string; /* human-readable scanner args */
void const *la_args_digested; /* pre-parsed scanner args */
int la_index;
struct lang_args *la_next;
};
extern void language_help_me (void);
extern void language_getopt (void);
extern void language_save_arg (char *arg);
extern struct language *get_language (char const *lang_name)
_GL_ATTRIBUTE_PURE;
extern void parse_language_map (char const *file_name);
extern void set_default_language (char const *lang_name);
extern struct lang_args *lang_args_default;
extern struct lang_args *lang_args_list;
extern struct obstack tokens_obstack;
extern unsigned char *scanner_buffer;
#endif /* not _scanners_h_ */
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