X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/0bf9249152d5f02a1fd455ed13c5848d1d5027d6..9ca7f077a0a5ecdd00c5945c7a7bd3cf46e23c13:/src/print.c
diff --git a/src/print.c b/src/print.c
index 08feaafb..ddd76a60 100644
--- a/src/print.c
+++ b/src/print.c
@@ -1,24 +1,22 @@
/* Print information on generated parser, for bison,
- Copyright (C) 1984, 1986, 1989, 2000, 2001, 2002, 2003, 2004, 2005
+ Copyright (C) 1984, 1986, 1989, 2000, 2001, 2002, 2003, 2004, 2005, 2007
Free Software Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
- Bison is free software; you can redistribute it and/or modify
+ This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
- Bison is distributed in the hope that it will be useful,
+ This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with Bison; see the file COPYING. If not, write to
- the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA. */
+ along with this program. If not, see . */
#include
#include "system.h"
@@ -40,7 +38,7 @@
#include "symtab.h"
#include "tables.h"
-static bitset shift_set;
+static bitset no_reduce_set;
#if 0
static void
@@ -81,7 +79,7 @@ print_core (FILE *out, state *s)
{
closure (sitems, snritems);
sitems = itemset;
- snritems = nritemset;
+ snritems = nitemset;
}
if (!snritems)
@@ -112,7 +110,8 @@ print_core (FILE *out, state *s)
fprintf (out, " %s", symbols[*sp]->tag);
/* Display the lookahead tokens? */
- if (report_flag & report_lookahead_tokens)
+ if (report_flag & report_lookahead_tokens
+ && item_number_is_rule_number (*sp1))
state_rule_lookahead_tokens_print (s, &rules[r], out);
fputc ('\n', out);
@@ -252,9 +251,12 @@ print_reductions (FILE *out, state *s)
if (yydefact[s->number] != 0)
default_rule = &rules[yydefact[s->number] - 1];
- bitset_zero (shift_set);
+ bitset_zero (no_reduce_set);
FOR_EACH_SHIFT (trans, i)
- bitset_set (shift_set, TRANSITION_SYMBOL (trans, i));
+ bitset_set (no_reduce_set, TRANSITION_SYMBOL (trans, i));
+ for (i = 0; i < s->errs->num; ++i)
+ if (s->errs->symbols[i])
+ bitset_set (no_reduce_set, s->errs->symbols[i]->number);
/* Compute the width of the lookahead token column. */
if (default_rule)
@@ -263,7 +265,7 @@ print_reductions (FILE *out, state *s)
if (reds->lookahead_tokens)
for (i = 0; i < ntokens; i++)
{
- bool count = bitset_test (shift_set, i);
+ bool count = bitset_test (no_reduce_set, i);
for (j = 0; j < reds->num; ++j)
if (bitset_test (reds->lookahead_tokens[j], i))
@@ -293,7 +295,7 @@ print_reductions (FILE *out, state *s)
for (i = 0; i < ntokens; i++)
{
bool defaulted = false;
- bool count = bitset_test (shift_set, i);
+ bool count = bitset_test (no_reduce_set, i);
for (j = 0; j < reds->num; ++j)
if (bitset_test (reds->lookahead_tokens[j], i))
@@ -400,7 +402,7 @@ print_grammar (FILE *out)
buffer[0] = 0;
column = strlen (tag);
fputs (tag, out);
- END_TEST (50);
+ END_TEST (65);
sprintf (buffer, " (%d)", i);
for (r = 0; r < nrules; r++)
@@ -444,14 +446,16 @@ print_grammar (FILE *out)
if (left_count > 0)
{
- END_TEST (50);
+ END_TEST (65);
sprintf (buffer + strlen (buffer), _(" on left:"));
for (r = 0; r < nrules; r++)
{
- END_TEST (65);
if (rules[r].lhs->number == i)
- sprintf (buffer + strlen (buffer), " %d", r);
+ {
+ END_TEST (65);
+ sprintf (buffer + strlen (buffer), " %d", r);
+ }
}
}
@@ -459,7 +463,7 @@ print_grammar (FILE *out)
{
if (left_count > 0)
sprintf (buffer + strlen (buffer), ",");
- END_TEST (50);
+ END_TEST (65);
sprintf (buffer + strlen (buffer), _(" on right:"));
for (r = 0; r < nrules; r++)
{
@@ -488,7 +492,8 @@ print_results (void)
reduce_output (out);
grammar_rules_partial_print (out,
- _("Rules never reduced"), rule_never_reduced_p);
+ _("Rules useless in parser due to conflicts"),
+ rule_useless_in_parser_p);
conflicts_output (out);
print_grammar (out);
@@ -498,10 +503,10 @@ print_results (void)
if (report_flag & report_itemsets)
new_closure (nritems);
/* Storage for print_reductions. */
- shift_set = bitset_create (ntokens, BITSET_FIXED);
+ no_reduce_set = bitset_create (ntokens, BITSET_FIXED);
for (i = 0; i < nstates; i++)
print_state (out, states[i]);
- bitset_free (shift_set);
+ bitset_free (no_reduce_set);
if (report_flag & report_itemsets)
free_closure ();