Get rid of broken %no-parser, -n, and --no-parser implementation and

[bison.git] / src / LR0.c

diff --git a/src/LR0.c b/src/LR0.c
index 945d41f8e0e8fc8ac35a1deeb2ad7e769f779bbf..689bebcbebf33f81627c7aa3236da32dfec51deb 100644 (file)
--- a/src/LR0.c
+++ b/src/LR0.c
@@ -1,6 +1,6 @@
 /* Generate the nondeterministic finite state machine for Bison.
 
 /* Generate the nondeterministic finite state machine for Bison.
 

-   Copyright (C) 1984, 1986, 1989, 2000, 2001, 2002, 2004, 2005, 2006
+   Copyright (C) 1984, 1986, 1989, 2000, 2001, 2002, 2004, 2005, 2006, 2007

    Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
    Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.


@@ -169,6 +169,10 @@ free_storage (void)
 | shifted.  For each symbol in the grammar, kernel_base[symbol]  |
 | points to a vector of item numbers activated if that symbol is |
 | shifted, and kernel_size[symbol] is their numbers.             |
 | shifted.  For each symbol in the grammar, kernel_base[symbol]  |
 | points to a vector of item numbers activated if that symbol is |
 | shifted, and kernel_size[symbol] is their numbers.             |

+|                                                                |
+| itemset is sorted on item index in ritem, which is sorted on   |
+| rule number.  Compute each kernel_base[symbol] with the same   |
+| sort.                                                          |

 `---------------------------------------------------------------*/
 
 static void
 `---------------------------------------------------------------*/
 
 static void


@@ -183,8 +187,8 @@ new_itemsets (state *s)
 
   nshifts = 0;
 
 
   nshifts = 0;
 

-  for (i = 0; i < nritemset; ++i)
-    if (ritem[itemset[i]] >= 0)
+  for (i = 0; i < nitemset; ++i)
+    if (item_number_is_symbol_number (ritem[itemset[i]]))

       {
        symbol_number sym = item_number_as_symbol_number (ritem[itemset[i]]);
        if (!kernel_size[sym])
       {
        symbol_number sym = item_number_as_symbol_number (ritem[itemset[i]]);
        if (!kernel_size[sym])


@@ -272,7 +276,7 @@ save_reductions (state *s)
   size_t i;
 
   /* Find and count the active items that represent ends of rules. */
   size_t i;
 
   /* Find and count the active items that represent ends of rules. */

-  for (i = 0; i < nritemset; ++i)
+  for (i = 0; i < nitemset; ++i)

     {
       item_number item = ritem[itemset[i]];
       if (item_number_is_rule_number (item))
     {
       item_number item = ritem[itemset[i]];
       if (item_number_is_rule_number (item))


@@ -351,10 +355,8 @@ generate_states (void)
        fprintf (stderr, "Processing state %d (reached by %s)\n",
                 s->number,
                 symbols[s->accessing_symbol]->tag);
        fprintf (stderr, "Processing state %d (reached by %s)\n",
                 s->number,
                 symbols[s->accessing_symbol]->tag);

-      /* Set up ruleset and itemset for the transitions out of this
-         state.  ruleset gets a 1 bit for each rule that could reduce
-         now.  itemset gets a vector of all the items that could be
-         accepted next.  */
+      /* Set up itemset for the transitions out of this state.  itemset gets a
+         vector of all the items that could be accepted next.  */

       closure (s->items, s->nitems);
       /* Record the reductions allowed out of this state.  */
       save_reductions (s);
       closure (s->items, s->nitems);
       /* Record the reductions allowed out of this state.  */
       save_reductions (s);