gcc/scan.h

   1 /* scan.h - Utility declarations for scan-decls and fix-header programs.
   2    Copyright (C) 1993, 1998, 1999 Free Software Foundation, Inc.
   3
   4 This program is free software; you can redistribute it and/or modify it
   5 under the terms of the GNU General Public License as published by the
   6 Free Software Foundation; either version 2, or (at your option) any
   7 later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 GNU General Public License for more details.
  13
  14 You should have received a copy of the GNU General Public License
  15 along with this program; if not, write to the Free Software
  16 Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  17
  18 #include <stdio.h>
  19
  20 typedef struct sstring
  21 {
  22   char *base;
  23   char *ptr;
  24   char *limit;
  25 } sstring;
  26
  27 #define INIT_SSTRING(STR) ((STR)->base = 0, (STR)->ptr = 0, (STR)->limit = 0)
  28 #define FREE_SSTRING(STR) do { if ((STR)->base) free (STR)->base; } while(0)
  29 #define SSTRING_PUT(STR, C) do {\
  30   if ((STR)->limit <= (STR)->ptr) make_sstring_space (STR, 1); \
  31   *(STR)->ptr++ = (C); } while (0)
  32 #define SSTRING_LENGTH(STR) ((STR)->ptr - (STR)->base)
  33 #define MAKE_SSTRING_SPACE(STR, COUNT) \
  34   if ((STR)->limit - (STR)->ptr < (COUNT)) make_sstring_space (STR, COUNT);
  35
  36 #ifndef _PARAMS
  37 #if defined(ANSI_PROTOTYPES) || defined(__cplusplus)
  38 #define _PARAMS(args) args
  39 #else
  40 #define _PARAMS(args) ()
  41 #endif
  42 #endif
  43
  44 struct partial_proto;
  45 struct fn_decl
  46 {
  47   const char *fname;
  48   const char *rtype;
  49   const char *params;
  50   struct partial_proto *partial;
  51 };
  52
  53 struct cpp_token;
  54
  55 extern int lineno;
  56 extern void sstring_append _PARAMS((sstring *, sstring *));
  57 extern void make_sstring_space _PARAMS((sstring *, int));
  58 extern int skip_spaces _PARAMS((FILE *, int));
  59 extern int scan_ident _PARAMS((FILE *, sstring *, int));
  60 extern int scan_string _PARAMS((FILE *, sstring *, int));
  61 extern int read_upto _PARAMS((FILE *, sstring *, int));
  62 extern unsigned long hash _PARAMS((const char *));
  63 extern void recognized_function _PARAMS((const struct cpp_token *,
  64                                          unsigned int, int, int));
  65 extern void recognized_extern _PARAMS((const struct cpp_token *));
  66 extern unsigned int hashstr _PARAMS((const char *, unsigned int));
  67
  68 struct cpp_reader;
  69 extern int scan_decls _PARAMS((struct cpp_reader *, int, char **));
  70
  71 /* get_token is a simple C lexer.  */
  72 #define IDENTIFIER_TOKEN 300
  73 #define CHAR_TOKEN 301
  74 #define STRING_TOKEN 302
  75 #define INT_TOKEN 303
  76 extern int get_token _PARAMS ((FILE *, sstring *));
  77
  78 /* Current file and line numer, taking #-directives into account */
  79 extern int source_lineno;
  80 extern sstring source_filename;
  81 /* Current physical line number */
  82 extern int lineno;