gcc/scan.h

   1 /* scan.h - Utility declarations for scan-decls and fix-header programs.
   2    Copyright (C) 1993 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, 675 Mass Ave, Cambridge, MA 02139, 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(__STDC__) || 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   char *fname;
  48   char *rtype;
  49   char *params;
  50   struct partial_proto *partial;
  51 };
  52
  53 extern int lineno;
  54 extern void sstring_append _PARAMS((sstring*, sstring*));
  55 extern void make_sstring_space _PARAMS((sstring*, int));
  56 extern int skip_spaces _PARAMS((FILE*, int));
  57 extern int scan_ident _PARAMS((FILE *, sstring *, int));
  58 extern int scan_string _PARAMS((FILE*, sstring *, int));
  59 extern int read_upto _PARAMS((FILE*, sstring*, int));
  60 extern char *xmalloc _PARAMS((unsigned));
  61 extern char *xrealloc _PARAMS((char *, unsigned));
  62 extern unsigned long hash _PARAMS((const char*));
  63
  64 /* get_token is a simple C lexer. */
  65 #define IDENTIFIER_TOKEN 300
  66 #define CHAR_TOKEN 301
  67 #define STRING_TOKEN 302
  68 #define INT_TOKEN 303
  69 extern int get_token _PARAMS ((FILE*, sstring*));
  70
  71 /* Current file and line numer, taking #-directives into account */
  72 extern int source_lineno;
  73 extern sstring source_filename;
  74 /* Current physical line number */
  75 extern int lineno;