--- a/src/DLD-FUNCTIONS/__voronoi__.cc	Wed Jan 20 17:24:23 2010 -0500
+++ b/src/DLD-FUNCTIONS/__voronoi__.cc	Wed Jan 20 17:33:41 2010 -0500
@@ -78,10 +78,10 @@
   if (nargin == 2) 
     {
       if (! args (1).is_string ()) 
-	{
-	  error ("__voronoi__: second argument must be a string");
-	  return retval;
-	}
+        {
+          error ("__voronoi__: second argument must be a string");
+          return retval;
+        }
 
       options = args (1).string_value().c_str ();
     }
@@ -100,9 +100,9 @@
   //for (int i = 0; i < np; i++) 
   //  {
   //    for (int j = 0; j < dim; j++)
-  //	  {
-  //	    pt_array[j+i*dim] = p(i,j);
-  //	  }
+  //      {
+  //        pt_array[j+i*dim] = p(i,j);
+  //      }
   //  }
 
   boolT ismalloc = false;
@@ -127,102 +127,102 @@
       OCTAVE_LOCAL_BUFFER (octave_idx_type, ni, np);
       
       for (i = 0; i < np; i++) 
-	ni[i] = 0;
+        ni[i] = 0;
       qh_setvoronoi_all ();
       bool infinity_seen = false;
       facetT *neighbor, **neighborp;
       coordT *voronoi_vertex;
 
       FORALLfacets 
-	{
-	  facet->seen = false;
-	}
+        {
+          facet->seen = false;
+        }
 
       FORALLvertices 
-	{
-	  if (qh hull_dim == 3)
-	    qh_order_vertexneighbors (vertex);
-	  infinity_seen = false;
+        {
+          if (qh hull_dim == 3)
+            qh_order_vertexneighbors (vertex);
+          infinity_seen = false;
 
-	  FOREACHneighbor_ (vertex)
-	    {
-	      if (! neighbor->upperdelaunay)
-		{
-		  if (! neighbor->seen)
-		    {
-		      n++;
-		      neighbor->seen = true;
-		    }
-		  ni[k]++;
-		}
-	      else if (! infinity_seen)
-		{
-		  infinity_seen = true;
-		  ni[k]++;
-		}
-	    }
-	  k++;
-	}
+          FOREACHneighbor_ (vertex)
+            {
+              if (! neighbor->upperdelaunay)
+                {
+                  if (! neighbor->seen)
+                    {
+                      n++;
+                      neighbor->seen = true;
+                    }
+                  ni[k]++;
+                }
+              else if (! infinity_seen)
+                {
+                  infinity_seen = true;
+                  ni[k]++;
+                }
+            }
+          k++;
+        }
 
       Matrix v (n, dim);
       for (octave_idx_type d = 0; d < dim; d++)
-	v(0,d) = octave_Inf;
+        v(0,d) = octave_Inf;
 
       boolMatrix AtInf (np, 1);
       for (i = 0; i < np; i++) 
-	AtInf(i) = false;
+        AtInf(i) = false;
       octave_value_list F (np, octave_value ());
       k = 0;
       i = 0;
 
       FORALLfacets 
-	{
-	  facet->seen = false;
-	}
+        {
+          facet->seen = false;
+        }
 
       FORALLvertices
-	{
-	  if (qh hull_dim == 3)
-	    qh_order_vertexneighbors(vertex);
-	  infinity_seen = false;
-	  RowVector facet_list (ni[k++]);
-	  m = 0;
+        {
+          if (qh hull_dim == 3)
+            qh_order_vertexneighbors(vertex);
+          infinity_seen = false;
+          RowVector facet_list (ni[k++]);
+          m = 0;
 
-	  FOREACHneighbor_(vertex)
-	    {
-	      if (neighbor->upperdelaunay)
-		{
-		  if (! infinity_seen)
-		    {
-		      infinity_seen = true;
-		      facet_list(m++) = 1;
-		      AtInf(j) = true;
-		    }
-		} 
-	      else 
-		{
-		  if (! neighbor->seen)
-		    {
-		      voronoi_vertex = neighbor->center;
-		      fidx = neighbor->id;
-		      i++;
-		      for (octave_idx_type d = 0; d < dim; d++)
-			{
-			  v(i,d) = *(voronoi_vertex++);
-			}
-		      neighbor->seen = true;
-		      neighbor->visitid = i;
-		    }
-		  facet_list(m++) = neighbor->visitid + 1;
-		}
-	    }
-	  F(r++) = facet_list;
-	  j++;
-	}
+          FOREACHneighbor_(vertex)
+            {
+              if (neighbor->upperdelaunay)
+                {
+                  if (! infinity_seen)
+                    {
+                      infinity_seen = true;
+                      facet_list(m++) = 1;
+                      AtInf(j) = true;
+                    }
+                } 
+              else 
+                {
+                  if (! neighbor->seen)
+                    {
+                      voronoi_vertex = neighbor->center;
+                      fidx = neighbor->id;
+                      i++;
+                      for (octave_idx_type d = 0; d < dim; d++)
+                        {
+                          v(i,d) = *(voronoi_vertex++);
+                        }
+                      neighbor->seen = true;
+                      neighbor->visitid = i;
+                    }
+                  facet_list(m++) = neighbor->visitid + 1;
+                }
+            }
+          F(r++) = facet_list;
+          j++;
+        }
 
       Cell C(r, 1);
       for (i = 0; i < r; i++)
-	C.elem (i) = F(i);
+        C.elem (i) = F(i);
 
       retval(0) = v;
       retval(1) = C;
@@ -237,7 +237,7 @@
       qh_memfreeshort (&curlong, &totlong);
 
       if (curlong || totlong)
-	warning ("__voronoi__: did not free %d bytes of long memory (%d pieces)", totlong, curlong);
+        warning ("__voronoi__: did not free %d bytes of long memory (%d pieces)", totlong, curlong);
     }
   else
     error ("__voronoi__: qhull failed");