+ size_t nitems;
+ item_number items[1];
+};
+
+extern state_number nstates;
+extern state *final_state;
+
+/* Create a new state with ACCESSING_SYMBOL for those items. */
+state *state_new (symbol_number accessing_symbol,
+ size_t core_size, item_number *core);
+
+/* Set the transitions of STATE. */
+void state_transitions_set (state *s, int num, state **trans);
+
+/* Set the reductions of STATE. */
+void state_reductions_set (state *s, int num, rule **reds);
+
+int state_reduction_find (state *s, rule *r);
+
+/* Set the errs of STATE. */
+void state_errs_set (state *s, int num, symbol **errors);
+
+/* Print on OUT all the look-ahead tokens such that this STATE wants to
+ reduce R. */
+void state_rule_look_ahead_tokens_print (state *s, rule *r, FILE *out);
+
+/* Create/destroy the states hash table. */
+void state_hash_new (void);
+void state_hash_free (void);
+
+/* Find the state associated to the CORE, and return it. If it does
+ not exist yet, return NULL. */
+state *state_hash_lookup (size_t core_size, item_number *core);
+
+/* Insert STATE in the state hash table. */
+void state_hash_insert (state *s);