X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/99013900121bb2de1197f5d0768749f9e50ccb8a..4f25ebb043fdb762ce4c1a2564cd7056d957ed87:/src/closure.c

diff --git a/src/closure.c b/src/closure.c
index df240fbe..ea64250e 100644
--- a/src/closure.c
+++ b/src/closure.c
@@ -19,8 +19,10 @@
    02111-1307, USA.  */
 
 #include "system.h"
+#include "quotearg.h"
 #include "bitset.h"
 #include "bitsetv.h"
+#include "bitsetv-print.h"
 #include "getargs.h"
 #include "symtab.h"
 #include "gram.h"
@@ -29,8 +31,8 @@
 #include "derives.h"
 
 /* NITEMSET is the size of the array ITEMSET.  */
-short *itemset;
-int nitemset;
+item_number_t *itemset;
+int nritemset;
 
 static bitset ruleset;
 
@@ -48,16 +50,16 @@ static bitsetv firsts = NULL;
 `-----------------*/
 
 static void
-print_closure (const char *title, short *array, size_t size)
+print_closure (const char *title, item_number_t *array, size_t size)
 {
   size_t i;
   fprintf (stderr, "Closure: %s\n", title);
   for (i = 0; i < size; ++i)
     {
-      short *rp;
+      item_number_t *rp;
       fprintf (stderr, "  %2d: .", array[i]);
       for (rp = &ritem[array[i]]; *rp >= 0; ++rp)
-	fprintf (stderr, " %s", symbols[*rp]->tag);
+	fprintf (stderr, " %s", symbol_tag_get (symbols[*rp]));
       fprintf (stderr, "  (rule %d)\n", -*rp - 1);
     }
   fputs ("\n\n", stderr);
@@ -72,11 +74,11 @@ print_firsts (void)
   fprintf (stderr, "FIRSTS\n");
   for (i = ntokens; i < nsyms; i++)
     {
-      fprintf (stderr, "\t%s firsts\n", symbols[i]->tag);
+      fprintf (stderr, "\t%s firsts\n", symbol_tag_get (symbols[i]));
       for (j = 0; j < nvars; j++)
 	if (bitset_test (FIRSTS (i), j))
-	  fprintf (stderr, "\t\t%d (%s)\n",
-		   j + ntokens, symbols[j + ntokens]->tag);
+	  fprintf (stderr, "\t\t%s\n",
+		   symbol_tag_get (symbols[j + ntokens]));
     }
   fprintf (stderr, "\n\n");
 }
@@ -90,67 +92,19 @@ print_fderives (void)
   fprintf (stderr, "FDERIVES\n");
   for (i = ntokens; i < nsyms; i++)
     {
-      fprintf (stderr, "\t%s derives\n", symbols[i]->tag);
-      for (j = 0; j <= nrules; j++)
+      fprintf (stderr, "\t%s derives\n", symbol_tag_get (symbols[i]));
+      for (j = 0; j < nrules + 1; j++)
 	if (bitset_test (FDERIVES (i), j))
 	  {
-	    short *rhsp;
+	    item_number_t *rhsp;
 	    fprintf (stderr, "\t\t%d:", j - 1);
 	    for (rhsp = rules[j].rhs; *rhsp >= 0; ++rhsp)
-	      fprintf (stderr, " %s", symbols[*rhsp]->tag);
+	      fprintf (stderr, " %s", symbol_tag_get (symbols[*rhsp]));
 	    fputc ('\n', stderr);
 	  }
     }
   fprintf (stderr, "\n\n");
 }
-
-/*--------------------------------------------------------.
-| Display the MATRIX array of SIZE bitsets of size SIZE.  |
-`--------------------------------------------------------*/
-
-static void
-bitmatrix_print (const char *title, bitsetv matrix)
-{
-  size_t i, j;
-  size_t size = bitset_size (matrix[0]);
-
-  /* Title. */
-  fprintf (stderr, "%s BEGIN\n", title);
-
-  /* Column numbers. */
-  fputs ("   ", stderr);
-  for (i = 0; i < size; ++i)
-    putc (i / 10 ? '0' + i / 10 : ' ', stderr);
-  putc ('\n', stderr);
-  fputs ("   ", stderr);
-  for (i = 0; i < size; ++i)
-    fprintf (stderr, "%d", i % 10);
-  putc ('\n', stderr);
-
-  /* Bar. */
-  fputs ("  .", stderr);
-  for (i = 0; i < size; ++i)
-    putc ('-', stderr);
-  fputs (".\n", stderr);
-
-  /* Contents. */
-  for (i = 0; i < size; ++i)
-    {
-      fprintf (stderr, "%2d|", i);
-      for (j = 0; j < size; ++j)
-	fputs (bitset_test (matrix[i], j) ? "1" : " ", stderr);
-      fputs ("|\n", stderr);
-    }
-
-  /* Bar. */
-  fputs ("  `", stderr);
-  for (i = 0; i < size; ++i)
-    putc ('-', stderr);
-  fputs ("'\n", stderr);
-
-  /* End title. */
-  fprintf (stderr, "%s END\n\n", title);
-}
 
 /*------------------------------------------------------------------.
 | Set FIRSTS to be an NVARS array of NVARS bitsets indicating which |
@@ -179,10 +133,10 @@ set_firsts (void)
       }
 
   if (trace_flag)
-    bitmatrix_print ("RTC: Input", firsts);
+    bitsetv_matrix_dump (stderr, "RTC: Firsts Input", firsts);
   bitsetv_reflexive_transitive_closure (firsts);
   if (trace_flag)
-    bitmatrix_print ("RTC: Output", firsts);
+    bitsetv_matrix_dump (stderr, "RTC: Firsts Output", firsts);
 
   if (trace_flag)
     print_firsts ();
@@ -218,12 +172,13 @@ set_fderives (void)
 
   bitsetv_free (firsts);
 }
+
 
 
 void
 new_closure (int n)
 {
-  itemset = XCALLOC (short, n);
+  itemset = XCALLOC (item_number_t, n);
 
   ruleset = bitset_create (nrules + 1, BITSET_FIXED);
 
@@ -233,7 +188,7 @@ new_closure (int n)
 
 
 void
-closure (short *core, int n)
+closure (item_number_t *core, int n)
 {
   /* Index over CORE. */
   int c;
@@ -244,44 +199,37 @@ closure (short *core, int n)
   if (trace_flag)
     print_closure ("input", core, n);
 
-  if (n == 0)
-    {
-      bitset_copy (ruleset, FDERIVES (start_symbol));
-    }
-  else
-    {
-      bitset_zero (ruleset);
+  bitset_zero (ruleset);
 
-      for (c = 0; c < n; ++c)
-	if (ISVAR (ritem[core[c]]))
-	  bitset_or (ruleset, ruleset, FDERIVES (ritem[core[c]]));
-    }
+  for (c = 0; c < n; ++c)
+    if (ISVAR (ritem[core[c]]))
+      bitset_or (ruleset, ruleset, FDERIVES (ritem[core[c]]));
 
-  nitemset = 0;
+  nritemset = 0;
   c = 0;
   for (ruleno = 0; ruleno < nrules + 1; ++ruleno)
     if (bitset_test (ruleset, ruleno))
       {
-	int itemno = rules[ruleno].rhs - ritem;
+	item_number_t itemno = rules[ruleno].rhs - ritem;
 	while (c < n && core[c] < itemno)
 	  {
-	    itemset[nitemset] = core[c];
-	    nitemset++;
+	    itemset[nritemset] = core[c];
+	    nritemset++;
 	    c++;
 	  }
-	itemset[nitemset] = itemno;
-	nitemset++;
+	itemset[nritemset] = itemno;
+	nritemset++;
       }
 
   while (c < n)
     {
-      itemset[nitemset] = core[c];
-      nitemset++;
+      itemset[nritemset] = core[c];
+      nritemset++;
       c++;
     }
 
   if (trace_flag)
-    print_closure ("output", itemset, nitemset);
+    print_closure ("output", itemset, nritemset);
 }