gcc/scan.h

   1 /* scan.h - Utility declarations for scan-decls and fix-header programs.
   2    Copyright (C) 1993, 1998, 1999, 2003, 2004, 2007, 2008 Free Software
   3    Foundation, Inc.
   4
   5    This program is free software; you can redistribute it and/or modify it
   6    under the terms of the GNU General Public License as published by the
   7    Free Software Foundation; either version 3, or (at your option) any
   8    later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program; see the file COPYING3.  If not see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <stdio.h>
  20
  21 typedef struct sstring
  22 {
  23   char *base;
  24   char *ptr;
  25   char *limit;
  26 } sstring;
  27
  28 #define INIT_SSTRING(STR) ((STR)->base = 0, (STR)->ptr = 0, (STR)->limit = 0)
  29 #define FREE_SSTRING(STR) do { if ((STR)->base) free (STR)->base; } while(0)
  30 #define SSTRING_PUT(STR, C) do {\
  31   if ((STR)->limit <= (STR)->ptr) make_sstring_space (STR, 1); \
  32   *(STR)->ptr++ = (C); } while (0)
  33 #define SSTRING_LENGTH(STR) ((STR)->ptr - (STR)->base)
  34 #define MAKE_SSTRING_SPACE(STR, COUNT) \
  35   if ((STR)->limit - (STR)->ptr < (COUNT)) make_sstring_space (STR, COUNT);
  36
  37 struct partial_proto;
  38 struct fn_decl
  39 {
  40   const char *fname;
  41   const char *rtype;
  42   const char *params;
  43   struct partial_proto *partial;
  44 };
  45
  46 struct cpp_token;
  47
  48 extern void sstring_append (sstring *, sstring *);
  49 extern void make_sstring_space (sstring *, int);
  50 extern int skip_spaces (FILE *, int);
  51 extern int scan_ident (FILE *, sstring *, int);
  52 extern int scan_string (FILE *, sstring *, int);
  53 extern int read_upto (FILE *, sstring *, int);
  54 extern unsigned long hash (const char *);
  55 extern void recognized_function (const struct cpp_token *,
  56                                  unsigned int, int, int);
  57 extern void recognized_extern (const struct cpp_token *);
  58 extern unsigned int hashstr (const char *, unsigned int);
  59
  60 extern int scan_decls (struct cpp_reader *, int, char **);
  61
  62 /* get_token is a simple C lexer.  */
  63 #define IDENTIFIER_TOKEN 300
  64 #define CHAR_TOKEN 301
  65 #define STRING_TOKEN 302
  66 #define INT_TOKEN 303
  67 extern int get_token (FILE *, sstring *);
  68
  69 /* Current file and line number, taking #-directives into account */
  70 extern int source_lineno;
  71 extern sstring source_filename;
  72 /* Current physical line number */
  73 extern int lineno;
  74
  75 extern struct line_maps line_table;