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/* scan.h - Utility declarations for scan-decls and fix-header programs.

   Copyright (C) 1993, 1998, 1999, 2003, 2004, 2007 Free Software Foundation, Inc.

   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; see the file COPYING3.  If not see

   <http://www.gnu.org/licenses/>.  */

#include <stdio.h>

typedef struct sstring

{

  char *base;

  char *ptr;

  char *limit;

} sstring;

#define INIT_SSTRING(STR) ((STR)->base = 0, (STR)->ptr = 0, (STR)->limit = 0)

#define FREE_SSTRING(STR) do { if ((STR)->base) free (STR)->base; } while(0)

#define SSTRING_PUT(STR, C) do {\

  if ((STR)->limit <= (STR)->ptr) make_sstring_space (STR, 1); \

  *(STR)->ptr++ = (C); } while (0)

#define SSTRING_LENGTH(STR) ((STR)->ptr - (STR)->base)

#define MAKE_SSTRING_SPACE(STR, COUNT) \

  if ((STR)->limit - (STR)->ptr < (COUNT)) make_sstring_space (STR, COUNT);

struct partial_proto;

struct fn_decl

{

  const char *fname;

  const char *rtype;

  const char *params;

  struct partial_proto *partial;

};

struct cpp_token;

extern void sstring_append (sstring *, sstring *);

extern void make_sstring_space (sstring *, int);

extern int skip_spaces (FILE *, int);

extern int scan_ident (FILE *, sstring *, int);

extern int scan_string (FILE *, sstring *, int);

extern int read_upto (FILE *, sstring *, int);

extern unsigned long hash (const char *);

extern void recognized_function (const struct cpp_token *,

                                 unsigned int, int, int);

extern void recognized_extern (const struct cpp_token *);

extern unsigned int hashstr (const char *, unsigned int);

extern int scan_decls (struct cpp_reader *, int, char **);

/* get_token is a simple C lexer.  */

#define IDENTIFIER_TOKEN 300

#define CHAR_TOKEN 301

#define STRING_TOKEN 302

#define INT_TOKEN 303

extern int get_token (FILE *, sstring *);

/* Current file and line numer, taking #-directives into account */

extern int source_lineno;

extern sstring source_filename;

/* Current physical line number */

extern int lineno;

extern struct line_maps line_table;