#ifndef LALR_H_
# define LALR_H_
-#include "bitset.h"
-#include "bitsetv.h"
+# include "bitset.h"
+# include "bitsetv.h"
/* Import the definition of CORE, TRANSITIONS and REDUCTIONS. */
# include "state.h"
which rules need lookahead in each state, and which lookahead
tokens they accept. */
-void lalr PARAMS ((void));
+void lalr (void);
+
+/* Release the information related to lookaheads. Can be performed
+ once the action tables are computed. */
+
+void lalr_free (void);
/* lalr() builds these data structures. */
together and GOTO_MAP[I - NTOKENS] is the index in FROM_STATE and
TO_STATE of the first of them. */
-extern short *goto_map;
+typedef short goto_number_t;
+# define GOTO_NUMBER_MAX ((goto_number_t) SHRT_MAX)
+
+extern goto_number_t *goto_map;
extern state_number_t *from_state;
extern state_number_t *to_state;
-/* LARULE is a vector which records the rules that need lookahead in
- various states. The elements of LARULE that apply to state S are
- those from LOOKAHEADS[S] through LOOKAHEADS[S+1]-1.
-
- If LR is the length of LArule, then a number from 0 to LR-1 can
- specify both a rule and a state where the rule might be applied.
- */
-
-extern rule_t **LArule;
-
-/* LA is a LR by NTOKENS matrix of bits. LA[l, i] is 1 if the rule
- LAruleno[l] is applicable in the appropriate state when the next
- token is symbol i. If LA[l, i] and LA[l, j] are both 1 for i != j,
- it is a conflict. */
-
-extern bitsetv LA;
-
#endif /* !LALR_H_ */