Instead of attaching lookaheads and duplicating the rules being

[bison.git] / ChangeLog

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+2002-08-01  Akim Demaille  <akim@epita.fr>
+
+       Instead of attaching lookaheads and duplicating the rules being
+       reduced by a state, attach the lookaheads to the reductions.
+
+       * src/state.h (state_t): Remove the `lookaheads',
+       `lookaheads_rule' member.
+       (reductions_t): Add a `lookaheads' member.
+       Use a regular array for the `rules'.
+       * src/state.c (reductions_new): Initialize the lookaheads member
+       to 0.
+       (state_rule_lookaheads_print): Adjust.
+       * src/state.h, src/state.c (state_reductions_find): New.
+       * src/conflicts.c (resolve_sr_conflict, set_conflicts)
+       (count_rr_conflicts): Adjust.
+       * src/lalr.c (LArule): Remove.
+       (add_lookback_edge): Adjust.
+       (state_lookaheads_count): New.
+       (states_lookaheads_initialize): Merge into...
+       (initialize_LA): this.
+       (lalr_free): Adjust.
+       * src/main.c (main): Don't free nullable and derives too early: it
+       is used by --verbose.
+       * src/print.c, src/print_graph.c, src/tables.c: Adjust.
+
 2002-08-01  Akim Demaille  <akim@epita.fr>
 
        * src/derives.h, src/derives.c (derives): A `rule_t***' instead of