Fix the `GAWK Grammar' failure.

[bison.git] / ChangeLog

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+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+       Fix the `GAWK Grammar' failure.
+
+       * src/LR0.c (final_state): Initialize to -1 so that we do compute
+       the reductions of the first state which was mistakenly confused
+       with the final state because precisely final_state was initialized
+       to 0.
+       * tests/sets.at (Nullable): Adjust: state 0 does have lookaheads,
+       now noticed by Bison.
+       * tests/regression.at (Rule Line Numbers): Adjust: state 0 does
+       have a reduction on $default.
+
+       
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+       * src/gram.c (ritem_print): Be sure to subtract 1 when displaying
+       rule line numbers.
+       * src/closure.c (print_closure): Likewise.
+       * src/derives.c (print_derives): Likewise.
+       * tests/sets.at (Nullable): Adjust: the rule numbers are correct
+       now.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+       * src/lalr.c (lookaheads_print): New.
+       (lalr): Call it when --trace-flag.
+       * tests/sets.at (Nullable): Adjust: when tracing, the lookaheads
+       are dumped.
+
+       
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+       * src/derives.c (print_derives): Be sure to use `>= 0', not `> 0',
+       when walking through ritem, even via rule->rhs.
+       * src/reduce.c (dump_grammar, useful_production, reduce_output)
+       (useful_production, useless_nonterminals): Likewise.
+       (reduce_grammar_tables): Likewise, plus update nritems.
+       * src/nullable.c (set_nullable): Likewise.
+       * src/lalr.c (build_relations): Likewise.
+       * tests/sets.at (Nullable): Adjust.
+       Fortunately, now, the $axiom is no longer nullable.
+
+       
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+       * src/LR0.c (generate_states): Use nritems, not nitems, nor using
+       the 0-sentinel.
+       * src/gram.c (ritem_longest_rhs): Likewise.
+       * src/reduce.c (nonterminals_reduce): Likewise.
+       * src/print_graph.c (print_graph): Likewise.
+       * src/output.c (output_rule_data): Likewise.
+       * src/nullable.c (set_nullable):  Likewise.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+       * src/output.c: Comment changes.
+
 2001-12-27  Paul Eggert  <eggert@twinsun.com>
 
        * src/bison.simple (YYSTACK_ALLOC, YYSIZE_T): Remove special