Checkpoint. Reorganizing ccnb parsing into many small files.
diff --git a/helper/ccnb-parser/visitors/ccnb-parser-no-argu-depth-first-visitor.h b/helper/ccnb-parser/visitors/ccnb-parser-no-argu-depth-first-visitor.h
new file mode 100644
index 0000000..1990d87
--- /dev/null
+++ b/helper/ccnb-parser/visitors/ccnb-parser-no-argu-depth-first-visitor.h
@@ -0,0 +1,48 @@
+/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil -*- */
+/*
+ * Copyright (c) 2011 University of California, Los Angeles
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Author: Alexander Afanasyev <alexander.afanasyev@ucla.edu>
+ */
+
+#ifndef _CCNB_PARSER_NO_ARGU_DEPTH_FIRST_VISITOR_H_
+#define _CCNB_PARSER_NO_ARGU_DEPTH_FIRST_VISITOR_H_
+
+#include "ccnb-parser-no-argu-visitor.h"
+
+namespace ns3 {
+namespace CcnbParser {
+
+/**
+ * \ingrou ccnx-ccnb
+ * \brief Depth-first visitor that takes no arguments and returns boost::any value
+ */
+class NoArguDepthFirstVisitor : public NoArguVisitor
+{
+public:
+ virtual boost::any visit (Blob& );
+ virtual boost::any visit (Udata&);
+ virtual boost::any visit (Tag& );
+ virtual boost::any visit (Attr& );
+ virtual boost::any visit (Dtag& );
+ virtual boost::any visit (Dattr&);
+ virtual boost::any visit (Ext& );
+};
+
+}
+}
+
+#endif // _CCNB_PARSER_NO_ARGU_DEPTH_FIRST_VISITOR_H_