The silent_functions flag no longer modifies the parse tree * pt-assign.cc (tree_simple_assignment::rvalue1, tree_multi_assignment::rvalue): Check tree_evaluator::statement_printing_enabled. * pt-eval.cc (tree_evaluator::statement_printing_enabled): New function. (tree_evaluator::visit_statement): Do not modify parse tree and check tree_evaluator::statement_printing_enabled. * pt-eval.h (tree_evaluator::statement_printing_enabled): New declaration. * pt-exp.h (tree_expression::print_result): Added comment. * pt-id.cc (tree_identifier::rvalue): Check tree_evaluator::statement_printing_enabled.

--- a/libinterp/parse-tree/pt-id.cc	Mon Nov 05 14:50:54 2012 -0800
+++ b/libinterp/parse-tree/pt-id.cc	Fri Nov 09 20:29:21 2012 -0700
@@ -30,6 +30,7 @@
 #include "pager.h"
 #include "pt-bp.h"
 #include "pt-const.h"
+#include "pt-eval.h"
 #include "pt-id.h"
 #include "pt-walk.h"
 #include "symtab.h"
@@ -88,7 +89,8 @@
         }
       else
         {
-          if (print_result () && nargout == 0)
+          if (print_result () && nargout == 0
+              && tree_evaluator::statement_printing_enabled ())
             val.print_with_name (octave_stdout, name ());
 
           retval = val;