/* Print information on generated parser, for bison,
- Copyright (C) 1984, 1986, 1989 Free Software Foundation, Inc.
+ Copyright 1984, 1986, 1989, 2000 Free Software Foundation, Inc.
-This file is part of Bison, the GNU Compiler Compiler.
+ This file is part of Bison, the GNU Compiler Compiler.
-Bison 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.
+ Bison 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.
-Bison 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.
+ Bison 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., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+ 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., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
#include "system.h"
-#include "alloc.h"
+#include "xalloc.h"
#include "files.h"
#include "gram.h"
+#include "LR0.h"
+#include "lalr.h"
+#include "conflicts.h"
+#include "getargs.h"
#include "state.h"
+#include "reader.h"
+#include "print.h"
-
-extern char **tags;
-extern int nstates;
-extern short *accessing_symbol;
-extern core **state_table;
-extern shifts **shift_table;
-extern errs **err_table;
-extern reductions **reduction_table;
-extern char *consistent;
-extern char any_conflicts;
-extern char *conflicts;
-extern int final_state;
-
-extern void conflict_log PARAMS((void));
-extern void verbose_conflict_log PARAMS((void));
-extern void print_reductions PARAMS((int));
-
-extern void terse PARAMS((void));
-extern void verbose PARAMS((void));
-
-#if 0 /* XXX currently unused. */
-static void print_token PARAMS((int, int));
-#endif
-
-static void print_state PARAMS((int));
-static void print_core PARAMS((int));
-static void print_actions PARAMS((int));
-static void print_grammar PARAMS((void));
-
-void
-terse (void)
-{
- if (any_conflicts)
- {
- conflict_log();
- }
-}
-
-
-void
-verbose (void)
-{
- register int i;
-
- if (any_conflicts)
- verbose_conflict_log();
-
- print_grammar();
-
- for (i = 0; i < nstates; i++)
- {
- print_state(i);
- }
-}
-
-
-#if 0 /* XXX currently unused. */
+#if 0
static void
print_token (int extnum, int token)
{
- fprintf(foutput, _(" type %d is %s\n"), extnum, tags[token]);
+ obstack_fgrow2 (&output_obstack, _(" type %d is %s\n"), extnum, tags[token]);
}
#endif
-
-static void
-print_state (int state)
-{
- fprintf(foutput, _("\n\nstate %d\n\n"), state);
- print_core(state);
- print_actions(state);
-}
-
+\f
+/*================================\
+| Report information on a state. |
+\================================*/
static void
print_core (int state)
{
- register int i;
- register int k;
- register int rule;
- register core *statep;
- register short *sp;
- register short *sp1;
+ int i;
+ int k;
+ int rule;
+ core *statep;
+ short *sp;
+ short *sp1;
statep = state_table[state];
k = statep->nitems;
- if (k == 0) return;
+ if (k == 0)
+ return;
for (i = 0; i < k; i++)
{
sp++;
rule = -(*sp);
- fprintf(foutput, " %s -> ", tags[rlhs[rule]]);
+ obstack_fgrow1 (&output_obstack, " %s -> ", tags[rlhs[rule]]);
for (sp = ritem + rrhs[rule]; sp < sp1; sp++)
{
- fprintf(foutput, "%s ", tags[*sp]);
+ obstack_fgrow1 (&output_obstack, "%s ", tags[*sp]);
}
- putc('.', foutput);
+ obstack_1grow (&output_obstack, '.');
while (*sp > 0)
{
- fprintf(foutput, " %s", tags[*sp]);
+ obstack_fgrow1 (&output_obstack, " %s", tags[*sp]);
sp++;
}
- fprintf (foutput, _(" (rule %d)"), rule);
- putc('\n', foutput);
+ obstack_fgrow1 (&output_obstack, _(" (rule %d)"), rule);
+ obstack_1grow (&output_obstack, '\n');
}
- putc('\n', foutput);
+ obstack_1grow (&output_obstack, '\n');
}
-
static void
print_actions (int state)
{
- register int i;
- register int k;
- register int state1;
- register int symbol;
- register shifts *shiftp;
- register errs *errp;
- register reductions *redp;
- register int rule;
+ int i;
+ int k;
+ int state1;
+ int symbol;
+ shifts *shiftp;
+ errs *errp;
+ reductions *redp;
+ int rule;
shiftp = shift_table[state];
redp = reduction_table[state];
if (!shiftp && !redp)
{
if (final_state == state)
- fprintf(foutput, _(" $default\taccept\n"));
+ obstack_sgrow (&output_obstack, _(" $default\taccept\n"));
else
- fprintf(foutput, _(" NO ACTIONS\n"));
+ obstack_sgrow (&output_obstack, _(" NO ACTIONS\n"));
return;
}
for (i = 0; i < k; i++)
{
- if (! shiftp->shifts[i]) continue;
+ if (!shiftp->shifts[i])
+ continue;
state1 = shiftp->shifts[i];
symbol = accessing_symbol[state1];
/* The following line used to be turned off. */
- if (ISVAR(symbol)) break;
- if (symbol==0) /* I.e. strcmp(tags[symbol],"$")==0 */
- fprintf(foutput, _(" $ \tgo to state %d\n"), state1);
- else
- fprintf(foutput, _(" %-4s\tshift, and go to state %d\n"),
- tags[symbol], state1);
+ if (ISVAR (symbol))
+ break;
+ if (symbol == 0) /* I.e. strcmp(tags[symbol],"$")==0 */
+ obstack_fgrow1 (&output_obstack,
+ _(" $ \tgo to state %d\n"), state1);
+ else
+ obstack_fgrow2 (&output_obstack,
+ _(" %-4s\tshift, and go to state %d\n"),
+ tags[symbol], state1);
}
if (i > 0)
- putc('\n', foutput);
+ obstack_1grow (&output_obstack, '\n');
}
else
{
for (j = 0; j < nerrs; j++)
{
- if (! errp->errs[j]) continue;
+ if (!errp->errs[j])
+ continue;
symbol = errp->errs[j];
- fprintf(foutput, _(" %-4s\terror (nonassociative)\n"), tags[symbol]);
+ obstack_fgrow1 (&output_obstack, _(" %-4s\terror (nonassociative)\n"),
+ tags[symbol]);
}
if (j > 0)
- putc('\n', foutput);
+ obstack_1grow (&output_obstack, '\n');
}
if (consistent[state] && redp)
{
rule = redp->rules[0];
symbol = rlhs[rule];
- fprintf(foutput, _(" $default\treduce using rule %d (%s)\n\n"),
- rule, tags[symbol]);
+ obstack_fgrow2 (&output_obstack,
+ _(" $default\treduce using rule %d (%s)\n\n"),
+ rule, tags[symbol]);
}
else if (redp)
{
- print_reductions(state);
+ print_reductions (state);
}
if (i < k)
{
for (; i < k; i++)
{
- if (! shiftp->shifts[i]) continue;
+ if (!shiftp->shifts[i])
+ continue;
state1 = shiftp->shifts[i];
symbol = accessing_symbol[state1];
- fprintf(foutput, _(" %-4s\tgo to state %d\n"), tags[symbol], state1);
+ obstack_fgrow2 (&output_obstack,
+ _(" %-4s\tgo to state %d\n"),
+ tags[symbol], state1);
}
- putc('\n', foutput);
+ obstack_1grow (&output_obstack, '\n');
}
}
-#define END_TEST(end) \
- do { \
- if (column + strlen(buffer) > (end)) { \
- fprintf (foutput, "%s\n ", buffer); \
- column = 3; \
- buffer[0] = 0; \
- } \
- } while (0)
+static void
+print_state (int state)
+{
+ obstack_sgrow (&output_obstack, "\n\n");
+ obstack_fgrow1 (&output_obstack, _("state %d"), state);
+ obstack_sgrow (&output_obstack, "\n\n");
+ print_core (state);
+ print_actions (state);
+}
+\f
+/*-----------------------------------------.
+| Print information on the whole grammar. |
+`-----------------------------------------*/
+
+#define END_TEST(End) \
+do { \
+ if (column + strlen(buffer) > (End)) \
+ { \
+ obstack_fgrow1 (&output_obstack, "%s\n ", buffer); \
+ column = 3; \
+ buffer[0] = 0; \
+ } \
+} while (0)
+
static void
print_grammar (void)
{
int i, j;
- short* rule;
+ short *rule;
char buffer[90];
int column = 0;
/* rule # : LHS -> RHS */
- fputs(_("\nGrammar\n"), foutput);
+ obstack_1grow (&output_obstack, '\n');
+ obstack_sgrow (&output_obstack, _("Grammar"));
+ obstack_1grow (&output_obstack, '\n');
for (i = 1; i <= nrules; i++)
/* Don't print rules disabled in reduce_grammar_tables. */
if (rlhs[i] >= 0)
{
- fprintf(foutput, _("rule %-4d %s ->"), i, tags[rlhs[i]]);
+ obstack_fgrow2 (&output_obstack,
+ _("rule %-4d %s ->"), i, tags[rlhs[i]]);
rule = &ritem[rrhs[i]];
if (*rule > 0)
while (*rule > 0)
- fprintf(foutput, " %s", tags[*rule++]);
+ obstack_fgrow1 (&output_obstack, " %s", tags[*rule++]);
else
- fputs (_(" /* empty */"), foutput);
- putc('\n', foutput);
+ obstack_sgrow (&output_obstack, _(" /* empty */"));
+ obstack_1grow (&output_obstack, '\n');
}
/* TERMINAL (type #) : rule #s terminal is on RHS */
- fputs(_("\nTerminals, with rules where they appear\n\n"), foutput);
- fprintf(foutput, "%s (-1)\n", tags[0]);
+ obstack_sgrow (&output_obstack, "\n");
+ obstack_sgrow (&output_obstack,
+ _("Terminals, with rules where they appear"));
+ obstack_sgrow (&output_obstack, "\n\n");
+ obstack_fgrow1 (&output_obstack, "%s (-1)\n", tags[0]);
if (translations)
{
for (i = 0; i <= max_user_token_number; i++)
{
buffer[0] = 0;
column = strlen (tags[token_translations[i]]);
- fprintf(foutput, "%s", tags[token_translations[i]]);
+ obstack_sgrow (&output_obstack, tags[token_translations[i]]);
END_TEST (50);
sprintf (buffer, " (%d)", i);
for (j = 1; j <= nrules; j++)
- {
- for (rule = &ritem[rrhs[j]]; *rule > 0; rule++)
- if (*rule == token_translations[i])
- {
- END_TEST (65);
- sprintf (buffer + strlen(buffer), " %d", j);
- break;
- }
- }
- fprintf (foutput, "%s\n", buffer);
+ for (rule = &ritem[rrhs[j]]; *rule > 0; rule++)
+ if (*rule == token_translations[i])
+ {
+ END_TEST (65);
+ sprintf (buffer + strlen (buffer), " %d", j);
+ break;
+ }
+ obstack_fgrow1 (&output_obstack, "%s\n", buffer);
}
}
else
- for (i = 1; i < ntokens; i++)
- {
- buffer[0] = 0;
- column = strlen (tags[i]);
- fprintf(foutput, "%s", tags[i]);
- END_TEST (50);
- sprintf (buffer, " (%d)", i);
+ {
+ for (i = 1; i < ntokens; i++)
+ {
+ buffer[0] = 0;
+ column = strlen (tags[i]);
+ obstack_sgrow (&output_obstack, tags[i]);
+ END_TEST (50);
+ sprintf (buffer, " (%d)", i);
- for (j = 1; j <= nrules; j++)
- {
+ for (j = 1; j <= nrules; j++)
for (rule = &ritem[rrhs[j]]; *rule > 0; rule++)
if (*rule == i)
{
END_TEST (65);
- sprintf (buffer + strlen(buffer), " %d", j);
+ sprintf (buffer + strlen (buffer), " %d", j);
break;
}
- }
- fprintf (foutput, "%s\n", buffer);
- }
+ obstack_fgrow1 (&output_obstack, "%s\n", buffer);
+ }
+ }
- fputs(_("\nNonterminals, with rules where they appear\n\n"), foutput);
+ obstack_sgrow (&output_obstack, "\n");
+ obstack_sgrow (&output_obstack,
+ _("Nonterminals, with rules where they appear"));
+ obstack_sgrow (&output_obstack, "\n\n");
for (i = ntokens; i <= nsyms - 1; i++)
{
int left_count = 0, right_count = 0;
}
buffer[0] = 0;
- fprintf(foutput, "%s", tags[i]);
+ obstack_sgrow (&output_obstack, tags[i]);
column = strlen (tags[i]);
sprintf (buffer, " (%d)", i);
END_TEST (0);
if (left_count > 0)
{
END_TEST (50);
- sprintf (buffer + strlen(buffer), _(" on left:"));
+ sprintf (buffer + strlen (buffer), _(" on left:"));
for (j = 1; j <= nrules; j++)
{
END_TEST (65);
if (rlhs[j] == i)
- sprintf (buffer + strlen(buffer), " %d", j);
+ sprintf (buffer + strlen (buffer), " %d", j);
}
}
if (right_count > 0)
{
if (left_count > 0)
- sprintf (buffer + strlen(buffer), ",");
+ sprintf (buffer + strlen (buffer), ",");
END_TEST (50);
- sprintf (buffer + strlen(buffer), _(" on right:"));
+ sprintf (buffer + strlen (buffer), _(" on right:"));
for (j = 1; j <= nrules; j++)
{
for (rule = &ritem[rrhs[j]]; *rule > 0; rule++)
if (*rule == i)
{
END_TEST (65);
- sprintf (buffer + strlen(buffer), " %d", j);
+ sprintf (buffer + strlen (buffer), " %d", j);
break;
}
}
}
- fprintf (foutput, "%s\n", buffer);
+ obstack_fgrow1 (&output_obstack, "%s\n", buffer);
}
}
+\f
+void
+print_results (void)
+{
+ int i;
+
+ if (any_conflicts)
+ print_conflicts ();
+
+ if (verbose_flag)
+ print_grammar ();
+
+ if (verbose_flag)
+ for (i = 0; i < nstates; i++)
+ print_state (i);
+}
projects / bison.git / blobdiff