--- a/src/pt-check.cc	Fri Feb 01 21:16:56 2008 -0500
+++ b/src/pt-check.cc	Tue Dec 28 01:59:05 2004 +0000
@@ -333,53 +333,6 @@
 }
 
 void
-tree_checker::visit_plot_command (tree_plot_command& cmd)
-{
-  plot_limits *range = cmd.limits ();
-
-  if (range)
-    range->accept (*this);
-
-  subplot_list *plot_list = cmd.subplots ();
-
-  if (plot_list)
-    plot_list->accept (*this);
-}
-
-void
-tree_checker::visit_plot_limits (plot_limits& cmd)
-{
-  plot_range *x_range = cmd.x_limits ();
-
-  if (x_range)
-    x_range->accept (*this);
-
-  plot_range *y_range = cmd.y_limits ();
-
-  if (y_range)
-    y_range->accept (*this);
-
-  plot_range *z_range = cmd.z_limits ();
-
-  if (z_range)
-    z_range->accept (*this);
-}
-
-void
-tree_checker::visit_plot_range (plot_range& cmd)
-{
-  tree_expression *lower = cmd.lower_bound ();
-
-  if (lower)
-    lower->accept (*this);
-
-  tree_expression *upper = cmd.upper_bound ();
-
-  if (upper)
-    upper->accept (*this);
-}
-
-void
 tree_checker::visit_postfix_expression (tree_postfix_expression& expr)
 {
   tree_expression *e = expr.operand ();
@@ -462,87 +415,6 @@
 }
 
 void
-tree_checker::visit_subplot (subplot& cmd)
-{
-  tree_expression *sp_plot_data = cmd.plot_data ();
-
-  if (sp_plot_data)
-    sp_plot_data->accept (*this);
-
-  subplot_using *sp_using_clause = cmd.using_clause ();
-
-  if (sp_using_clause)
-    sp_using_clause->accept (*this);
-
-  tree_expression *sp_title_clause = cmd.title_clause ();
-
-  if (sp_title_clause)
-    sp_title_clause->accept (*this);
-
-  subplot_style *sp_style_clause = cmd.style_clause ();
-
-  if (sp_style_clause)
-    sp_style_clause->accept (*this);
-}
-
-void
-tree_checker::visit_subplot_axes (subplot_axes&)
-{
-}
-
-void
-tree_checker::visit_subplot_list (subplot_list& lst)
-{
-  subplot_list::iterator p = lst.begin ();
-
-  while (p != lst.end ())
-    {
-      subplot *elt = *p++;
-
-      if (elt)
-	elt->accept (*this);
-    }
-}
-
-void
-tree_checker::visit_subplot_style (subplot_style& cmd)
-{
-  tree_expression *sp_linetype = cmd.linetype ();
-
-  if (sp_linetype)
-    sp_linetype->accept (*this);
-
-  tree_expression *sp_pointtype = cmd.pointtype ();
-
-  if (sp_pointtype)
-    sp_pointtype->accept (*this);
-}
-
-void
-tree_checker::visit_subplot_using (subplot_using& cmd)
-{
-  int qual_count = cmd.qualifier_count ();
-
-  if (qual_count > 0)
-    {
-      tree_expression **x = cmd.qualifiers ();
-
-      for (int i = 0; i < qual_count; i++)
-	{
-	  if (x[i])
-	    x[i]->accept (*this);
-	}
-    }
-  else
-    {
-      tree_expression *scanf_fmt = cmd.scanf_format ();
-
-      if (scanf_fmt)
-	scanf_fmt->accept (*this);
-    }
-}
-
-void
 tree_checker::visit_switch_case (tree_switch_case& cs)
 {
   tree_expression *label = cs.case_label ();