/* Data definitions for internal representation of Bison's input.
- Copyright (C) 1984, 1986, 1989, 1992, 2001, 2002
+ Copyright (C) 1984, 1986, 1989, 1992, 2001, 2002, 2003, 2004, 2005
Free Software Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
You should have received a copy of the GNU General Public License
along with Bison; see the file COPYING. If not, write to
- the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
#ifndef GRAM_H_
# define GRAM_H_
# include "location.h"
# include "symtab.h"
-# define ISTOKEN(s) ((s) < ntokens)
-# define ISVAR(s) ((s) >= ntokens)
+# define ISTOKEN(i) ((i) < ntokens)
+# define ISVAR(i) ((i) >= ntokens)
extern int nsyms;
extern int ntokens;
sometimes have to perform the converse transformation. */
static inline item_number
-symbol_number_as_item_number (symbol_number s)
+symbol_number_as_item_number (symbol_number sym)
{
- return s;
+ return sym;
}
static inline symbol_number
return i;
}
-extern symbol_number start_symbol;
+static inline bool
+item_number_is_symbol_number (item_number i)
+{
+ return i >= 0;
+}
/* Rule numbers. */
-typedef short rule_number;
+typedef int rule_number;
extern rule_number nrules;
static inline item_number
return -1 - i;
}
+static inline bool
+item_number_is_rule_number (item_number i)
+{
+ return i < 0;
+}
/*--------.
| Rules. |
/* This symbol provides both the associativity, and the precedence. */
symbol *prec;
- short dprec;
- short merger;
+ int dprec;
+ int merger;
/* This symbol was attached to the rule via %prec. */
symbol *precsym;
-/* GLR_PARSER is nonzero if the input file says to use the GLR
- (Generalized LR) parser, and to output some additional
- information used by the GLR algorithm. */
-
-extern int glr_parser;
-
-/* PURE_PARSER is nonzero if should generate a parser that is all pure
- and reentrant. */
-
-extern int pure_parser;
-
/* Dump RITEM for traces. */
void ritem_print (FILE *out);