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// Copyright 2008 Christophe Henry
// henry UNDERSCORE christophe AT hotmail DOT com
// This is an extended version of the state machine available in the boost::mpl library
// Distributed under the same license as the original.
// Copyright for the original version:
// Copyright 2005 David Abrahams and Aleksey Gurtovoy. Distributed
// under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at


#include <boost/msm/common.hpp>

namespace boost { namespace msm
// base grammar for all of msm's proto-based grammars
struct basic_grammar : proto::_

// Forward-declare an expression wrapper
template<typename Expr>
struct msm_terminal;

struct msm_domain
    : proto::domain< proto::generator<msm_terminal>, basic_grammar >

template<typename Expr>
struct msm_terminal
    : proto::extends<Expr, msm_terminal<Expr>, msm_domain>
        proto::extends<Expr, msm_terminal<Expr>, msm_domain>
    // Needs a constructor
    msm_terminal(Expr const &e = Expr())
        : base_type(e)

} } // boost::msm