the last thing accepted to reach that state. It is the
accessing_symbol of the core.
- Each core contains a vector of nitems items which are the indices
+ Each core contains a vector of NITEMS items which are the indices
in the ritems vector of the items that are selected in this state.
- The link field is used for chaining buckets that hash states by
+ The link field is used for chaining symbols that hash states by
their itemsets. This is for recognizing equivalent states and
combining them when the states are generated.
typedef struct shifts
{
- struct shifts *next;
- short number;
short nshifts;
short shifts[1];
} shifts;
-
-#define SHIFTS_ALLOC(Nshifts) \
- (shifts *) xcalloc ((unsigned) (sizeof (shifts) \
- + (Nshifts - 1) * sizeof (short)), 1)
-
-shifts * shifts_new PARAMS ((int n));
+shifts *shifts_new PARAMS ((int n));
/* What is the symbol which is shifted by SHIFTS->shifts[Shift]? Can
case of gotos. */
#define SHIFT_SYMBOL(Shifts, Shift) \
- (state_table[Shifts->shifts[Shift]]->accessing_symbol)
+ (states[Shifts->shifts[Shift]]->accessing_symbol)
/* Is the SHIFTS->shifts[Shift] a real shift? (as opposed to gotos.) */
/* Is the SHIFTS->shifts[Shift] then handling of the error token?. */
#define SHIFT_IS_ERROR(Shifts, Shift) \
- (SHIFT_SYMBOL (Shifts, Shift) == error_token_number)
+ (SHIFT_SYMBOL (Shifts, Shift) == errtoken->number)
/* When resolving a SR conflicts, if the reduction wins, the shift is
disabled. */
short errs[1];
} errs;
-#define ERRS_ALLOC(Nerrs) \
- (errs *) xcalloc ((unsigned) (sizeof (errs) \
- + (Nerrs - 1) * sizeof (short)), 1)
+errs *errs_new PARAMS ((int n));
+errs *errs_dup PARAMS ((errs *src));
/*-------------.
short rules[1];
} reductions;
-#define REDUCTIONS_ALLOC(Nreductions) \
- (reductions *) xcalloc ((unsigned) (sizeof (reductions) \
- + (Nreductions - 1) * sizeof (short)), 1)
-
+reductions *reductions_new PARAMS ((int n));
/*----------.
struct state_s *link;
short number;
- short accessing_symbol;
+ token_number_t accessing_symbol;
shifts *shifts;
reductions *reductions;
errs *errs;
char consistent;
/* Used in LALR, not LR(0). */
- short lookaheads;
+ /* Pseudo pointer into LA. */
+ short lookaheadsp;
+ int nlookaheads;
/* Its items. */
- short nitems;
- short items[1];
+ unsigned short nitems;
+ item_number_t items[1];
} state_t;
#define STATE_ALLOC(Nitems) \
(state_t *) xcalloc ((unsigned) (sizeof (state_t) \
- + (Nitems - 1) * sizeof (short)), 1)
+ + (Nitems - 1) * sizeof (item_number_t)), 1)
#endif /* !STATE_H_ */