/* Match rules with nonterminals for bison,
- Copyright (C) 1984, 1989, 2000 Free Software Foundation, Inc.
+ Copyright 1984, 1989, 2000, 2001 Free Software Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
*/
#include "system.h"
-#include "xalloc.h"
+#include "getargs.h"
#include "types.h"
+#include "reader.h"
#include "gram.h"
#include "derives.h"
short **derives;
-#if DEBUG
static void
print_derives (void)
{
int i;
- short *sp;
- printf (_("\n\n\nDERIVES\n\n"));
+ fputs ("DERIVES\n", stderr);
for (i = ntokens; i < nsyms; i++)
{
- printf (_("%s derives"), tags[i]);
+ short *sp;
+ fprintf (stderr, "\t%s derives\n", tags[i]);
for (sp = derives[i]; *sp > 0; sp++)
{
- printf (" %d", *sp);
+ short *rhsp;
+ fprintf (stderr, "\t\t%d:", *sp);
+ for (rhsp = ritem + rule_table[*sp].rhs; *rhsp > 0; ++rhsp)
+ fprintf (stderr, " %s", tags[*rhsp]);
+ fputc ('\n', stderr);
}
- putchar ('\n');
}
- putchar ('\n');
+ fputs ("\n\n", stderr);
}
-#endif
void
set_derives (void)
p = delts;
for (i = nrules; i > 0; i--)
{
- lhs = rlhs[i];
+ lhs = rule_table[i].lhs;
if (lhs >= 0)
{
p->next = dset[lhs];
*q++ = -1;
}
-#if DEBUG
- print_derives ();
-#endif
+ if (trace_flag)
+ print_derives ();
XFREE (dset + ntokens);
XFREE (delts);