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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;