Checkpoint. Reorganizing ccnb parsing into many small files.
diff --git a/helper/ccnb-parser/syntax-tree/ccnb-parser-block.h b/helper/ccnb-parser/syntax-tree/ccnb-parser-block.h
new file mode 100644
index 0000000..6cbb6b3
--- /dev/null
+++ b/helper/ccnb-parser/syntax-tree/ccnb-parser-block.h
@@ -0,0 +1,68 @@
+/* -*- 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_BLOCK_H_
+#define _CCNB_PARSER_BLOCK_H_
+
+#include "ns3/simple-ref-count.h"
+#include "ns3/buffer.h"
+#include "ns3/ptr.h"
+
+// visitors
+#include "ns3/ccnb-parser-void-no-argu-visitor.h"
+#include "ns3/ccnb-parser-void-visitor.h"
+#include "ns3/ccnb-parser-no-argu-visitor.h"
+#include "ns3/ccnb-parser-visitor.h"
+
+namespace ns3 {
+namespace CcnbParser {
+
+/**
+ * \ingroup ccnx-ccnb
+ * \brief Base class for ccnb-encoded node
+ *
+ * This class provides a static method to create a new block
+ * (recursively) from the stream
+ *
+ * \see http://www.ccnx.org/releases/latest/doc/technical/BinaryEncoding.html
+ */
+class Block : public SimpleRefCount<Block>
+{
+public:
+ /**
+ * \brief Parsing stream (recursively) and creating a parsed BLOCK
+ * object
+ *
+ * \param start buffer iterator pointing to the start position for parsing
+ * \returns parsed ccnb-encoded block, that could contain more block inside
+ */
+ static Ptr<Block>
+ ParseBlock (Buffer::Iterator &start);
+
+ virtual void accept (VoidNoArguVisitor &v ) =0; ///< \brief Method to dispatch VoidNoArguVisitor
+ virtual void accept (VoidVisitor &v, boost::any param) =0; ///< \brief Method to dispatch VoidVisitor
+ virtual boost::any accept (NoArguVisitor &v ) =0; ///< \brief Method to dispatch NoArguVisitor
+ virtual boost::any accept (Visitor &v, boost::any param ) =0; ///< \brief Method to dispatch Visitor
+};
+
+}
+}
+
+#endif // _CCNB_PARSER_BLOCK_H_