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Stop storing rules from 1 to nrules + 1.

Browse Source 
* src/LR0.c, src/closure.c, src/derives.c, src/gram.c, src/lalr.c
* src/nullable.c, src/output.c, src/print.c, src/reader.c
* src/reduce.c: Allocate and free from &rules[0], not &rules[1].
Iterate from 0 to nrules.
Use rule_number_as_item_number and item_number_as_rule_number.
Adjust to `derive' now containing possibly 0.
* src/gram.h (rule_number_as_item_number, item_number_as_rule_number):
Handle the `- 1' part in rule numbers from/to item numbers.
* src/conflicts.c (log_resolution): Fix the message which reversed
shift and reduce.
* src/output.c (action_row): Initialize default_rule to -1.
(token_actions): Adjust.
* tests/sets.at (Nullable, Firsts): Fix the previously bogus
expected output.
* tests/conflicts.at (Resolved SR Conflicts): Likewise.
This commit is contained in:
Akim Demaille
2002-07-25 21:21:02 +00:00
parent 4a2a22f4c0
commit 4b3d3a8e46
15 changed files with 124 additions and 104 deletions
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4
src/lalr.c
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@@ -264,7 +264,7 @@ build_relations (void)
symbol_number_t symbol1 = states[to_state[i]]->accessing_symbol;
rule_number_t *rulep;
for (rulep = derives[symbol1]; *rulep > 0; rulep++)
for (rulep = derives[symbol1]; *rulep >= 0; rulep++)
{
int done;
int length = 1;
@@ -438,7 +438,7 @@ lookaheads_print (FILE *out)
{
fprintf (out, " on %d (%s) -> rule %d\n",
k, symbols[k]->tag,
states[i]->lookaheads_rule[j]->number - 1);
states[i]->lookaheads_rule[j]->number);
};
}
fprintf (out, "Lookaheads: END\n");