/*=============================================================================

    Copyright (c) 1998-2003 Joel de Guzman

    Copyright (c) 2001 Daniel Nuffer

    Copyright (c) 2002 Hartmut Kaiser

    http://spirit.sourceforge.net/



    Use, modification and distribution is subject to the Boost Software

    License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at

    http://www.boost.org/LICENSE_1_0.txt)

=============================================================================*/

#if !defined(BOOST_SPIRIT_ALTERNATIVE_IPP)

#define BOOST_SPIRIT_ALTERNATIVE_IPP



namespace boost { namespace spirit {



    ///////////////////////////////////////////////////////////////////////////

    //

    //  alternative class implementation

    //

    ///////////////////////////////////////////////////////////////////////////

    template <typename A, typename B>

    inline alternative<A, B>

    operator|(parser<A> const& a, parser<B> const& b)

    {

        return alternative<A, B>(a.derived(), b.derived());

    }

    

    template <typename A>

    inline alternative<A, chlit<char> >

    operator|(parser<A> const& a, char b)

    {

        return alternative<A, chlit<char> >(a.derived(), b);

    }

    

    template <typename B>

    inline alternative<chlit<char>, B>

    operator|(char a, parser<B> const& b)

    {

        return alternative<chlit<char>, B>(a, b.derived());

    }

    

    template <typename A>

    inline alternative<A, strlit<char const*> >

    operator|(parser<A> const& a, char const* b)

    {

        return alternative<A, strlit<char const*> >(a.derived(), b);

    }

    

    template <typename B>

    inline alternative<strlit<char const*>, B>

    operator|(char const* a, parser<B> const& b)

    {

        return alternative<strlit<char const*>, B>(a, b.derived());

    }

    

    template <typename A>

    inline alternative<A, chlit<wchar_t> >

    operator|(parser<A> const& a, wchar_t b)

    {

        return alternative<A, chlit<wchar_t> >(a.derived(), b);

    }

    

    template <typename B>

    inline alternative<chlit<wchar_t>, B>

    operator|(wchar_t a, parser<B> const& b)

    {

        return alternative<chlit<wchar_t>, B>(a, b.derived());

    }

    

    template <typename A>

    inline alternative<A, strlit<wchar_t const*> >

    operator|(parser<A> const& a, wchar_t const* b)

    {

        return alternative<A, strlit<wchar_t const*> >(a.derived(), b);

    }

    

    template <typename B>

    inline alternative<strlit<wchar_t const*>, B>

    operator|(wchar_t const* a, parser<B> const& b)

    {

        return alternative<strlit<wchar_t const*>, B>(a, b.derived());

    }



}} // namespace boost::spirit



#endif

