// $Id$
//
// Copyright (C) 2006
// Fraunhofer Institute for Open Communication Systems (FOKUS)
// Competence Center NETwork research (NET), St. Augustin, GERMANY
//     Stefan Bund <g0dil@berlios.de>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// 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.

/** \file
    \brief ArrayParser internal header */

#ifndef IH_SENF_Packets_ArrayParser_
#define IH_SENF_Packets_ArrayParser_ 1

// Custom includes
#include <boost/iterator/iterator_facade.hpp>

//-/////////////////////////////////////////////////////////////////////////////////////////////////

/** \brief Internal: Array and Vector iterator

    \internal

    This is the iterator type used for both ArrayParser and VectorParser. It is a model of random
    access iterator.
 */
template <class ElementParser>
class senf::detail::ArrayParser_iterator
    : public boost::iterator_facade< ArrayParser_iterator<ElementParser>,
                                     ElementParser,
                                     boost::random_access_traversal_tag,
                                     ElementParser >
{
public:
    ArrayParser_iterator();
    ArrayParser_iterator(PacketParserBase::data_iterator const & i,
                         PacketParserBase::state_type s);

    // Needed to elide the []-proxy of iterator_facade
    ElementParser operator[](int i) const;

    PacketParserBase::data_iterator raw() const; ///< Return data_iterator
                                        /**< Returns the raw data_iterator pointing to the beginning
                                             of the current element */

protected:

private:
    friend class boost::iterator_core_access;

    // iterator_facade interface

    ElementParser dereference() const;
    bool equal(ArrayParser_iterator const & other) const;
    int distance_to(ArrayParser_iterator const & other) const;
    void increment();
    void decrement();
    void advance(int n);

    PacketParserBase::data_iterator i_;
    PacketParserBase::state_type s_;
};

//-/////////////////////////////////////////////////////////////////////////////////////////////////
#endif


// Local Variables:
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// c-file-style: "senf"
// indent-tabs-mode: nil
// ispell-local-dictionary: "american"
// compile-command: "scons -u test"
// comment-column: 40
// End: