* src/reader.c, src/reader.h (tags): Remove.

[bison.git] / src / nullable.c

diff --git a/src/nullable.c b/src/nullable.c
index bce291ca73fd1e4315f608c7d25fbd3c655ad5dd..082f2b3211a383fb289ef438feb85585d2c8add9 100644 (file)
--- a/src/nullable.c
+++ b/src/nullable.c
@@ -25,7 +25,7 @@
 
 #include "system.h"
 #include "getargs.h"
-#include "reader.h"
+#include "symtab.h"
 #include "types.h"
 #include "gram.h"
 #include "reduce.h"
@@ -39,7 +39,7 @@ nullable_print (FILE *out)
   int i;
   fputs ("NULLABLE\n", out);
   for (i = ntokens; i < nsyms; i++)
-    fprintf (out, "\t%s: %s\n", tags[i], nullable[i] ? "yes" : "no");
+    fprintf (out, "\t%s: %s\n", symbols[i]->tag, nullable[i] ? "yes" : "no");
   fputs ("\n\n", out);
 }
 
@@ -71,19 +71,19 @@ set_nullable (void)
   for (ruleno = 1; ruleno < nrules + 1; ++ruleno)
     if (rule_table[ruleno].useful)
       {
-       if (ritem[rule_table[ruleno].rhs] > 0)
+       if (ritem[rule_table[ruleno].rhs] >= 0)
          {
            /* This rule has a non empty RHS. */
            short *r;
            int any_tokens = 0;
-           for (r = ritem + rule_table[ruleno].rhs; *r > 0; ++r)
+           for (r = &ritem[rule_table[ruleno].rhs]; *r >= 0; ++r)
              if (ISTOKEN (*r))
                any_tokens = 1;
 
            /* This rule has only nonterminals: schedule it for the second
               pass.  */
            if (!any_tokens)
-             for (r = ritem + rule_table[ruleno].rhs; *r > 0; ++r)
+             for (r = &ritem[rule_table[ruleno].rhs]; *r >= 0; ++r)
                {
                  rcount[ruleno]++;
                  p->next = rsets[*r];