boost/xpressive/detail/static/modifier.hpp
///////////////////////////////////////////////////////////////////////////////
// modifier.hpp
//
// Copyright 2008 Eric Niebler. Distributed under 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)
#ifndef BOOST_XPRESSIVE_DETAIL_STATIC_MODIFIER_HPP_EAN_10_04_2005
#define BOOST_XPRESSIVE_DETAIL_STATIC_MODIFIER_HPP_EAN_10_04_2005
// MS compatible compilers support #pragma once
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
# pragma once
# pragma warning(push)
# pragma warning(disable : 4510) // default constructor could not be generated
# pragma warning(disable : 4610) // user defined constructor required
#endif
#include <boost/xpressive/detail/detail_fwd.hpp>
#include <boost/proto/traits.hpp>
#include <boost/xpressive/regex_constants.hpp>
namespace boost { namespace xpressive { namespace detail
{
///////////////////////////////////////////////////////////////////////////////
// modifier
template<typename Modifier>
struct modifier_op
{
typedef regex_constants::syntax_option_type opt_type;
template<typename Expr>
struct apply
{
typedef typename proto::binary_expr<
modifier_tag
, typename proto::terminal<Modifier>::type
, typename proto::result_of::as_child<Expr const>::type
>::type type;
};
template<typename Expr>
typename apply<Expr>::type const
operator ()(Expr const &expr) const
{
typename apply<Expr>::type that = {{this->mod_}, proto::as_child(expr)};
return that;
}
operator opt_type() const
{
return this->opt_;
}
Modifier mod_;
opt_type opt_;
};
}}}
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
# pragma warning(pop)
#endif
#endif