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* src/conflicts.c (conflicts_output): Don't output rules never

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reduced here, since anyway that computation doesn't work.
* src/gram.h, src/gram.h (rule_filter_t, rule_useful_p)
(rule_useless_p, rule_never_reduced_p): New.
(grammar_rules_partial_print): Use a filter instead of a range.
Display the title only if needed.
(grammar_rules_print): Adjust.
(grammar_rules_never_reduced_report): New.
* src/tables.c (action_row): Move the computation of rules never
reduced to...
(token_actions): here.
* src/main.c (main): Make the parser before making the report, so
that rules never reduced are computed.
Call grammar_rules_never_reduced_report.
* src/print.c (print_results): Report rules never reduced.
* tests/conflicts.at, tests/reduce.at: Adjust.
This commit is contained in:
Akim Demaille
2002-08-02 08:05:01 +00:00
parent cd08e51eda
commit c8f002c7d3
10 changed files with 175 additions and 102 deletions
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18
src/reduce.c
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@@ -235,15 +235,8 @@ reduce_grammar_tables (void)
{
rule_number_t r;
for (r = 0; r < nrules; r++)
{
rules[r].useful = bitset_test (P, r);
if (!rules[r].useful)
{
LOCATION_PRINT (stderr, rules[r].location);
fprintf (stderr, ": %s: %s: ", _("warning"), _("useless rule"));
rule_print (&rules[r], stderr);
}
}
rules[r].useful = bitset_test (P, r);
grammar_rules_never_reduced_report (_("useless rule"));
}
/* Map the nonterminals to their new index: useful first, useless
@@ -353,7 +346,7 @@ reduce_output (FILE *out)
if (nuseless_nonterminals > 0)
{
int i;
fprintf (out, "%s\n\n", _("Useless nonterminals:"));
fprintf (out, "%s\n\n", _("Useless nonterminals"));
for (i = 0; i < nuseless_nonterminals; ++i)
fprintf (out, " %s\n", symbols[nsyms + i]->tag);
fputs ("\n\n", out);
@@ -366,7 +359,7 @@ reduce_output (FILE *out)
if (!bitset_test (V, i) && !bitset_test (V1, i))
{
if (!b)
fprintf (out, "%s\n\n", _("Terminals which are not used:"));
fprintf (out, "%s\n\n", _("Terminals which are not used"));
b = TRUE;
fprintf (out, " %s\n", symbols[i]->tag);
}
@@ -376,8 +369,7 @@ reduce_output (FILE *out)
if (nuseless_productions > 0)
grammar_rules_partial_print (out, _("Useless rules"),
nrules,
nrules + nuseless_productions);
rule_useless_p);
}