Chris@16: ///////////////////////////////////////////////////////////////////////////////
Chris@16: // modifier.hpp
Chris@16: //
Chris@16: //  Copyright 2008 Eric Niebler. Distributed under the Boost
Chris@16: //  Software License, Version 1.0. (See accompanying file
Chris@16: //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: 
Chris@16: #ifndef BOOST_XPRESSIVE_DETAIL_STATIC_MODIFIER_HPP_EAN_10_04_2005
Chris@16: #define BOOST_XPRESSIVE_DETAIL_STATIC_MODIFIER_HPP_EAN_10_04_2005
Chris@16: 
Chris@16: // MS compatible compilers support #pragma once
Chris@101: #if defined(_MSC_VER)
Chris@16: # pragma once
Chris@16: # pragma warning(push)
Chris@16: # pragma warning(disable : 4510) // default constructor could not be generated
Chris@16: # pragma warning(disable : 4610) // user defined constructor required
Chris@16: #endif
Chris@16: 
Chris@16: #include <boost/xpressive/detail/detail_fwd.hpp>
Chris@16: #include <boost/proto/traits.hpp>
Chris@16: #include <boost/xpressive/regex_constants.hpp>
Chris@16: 
Chris@16: namespace boost { namespace xpressive { namespace detail
Chris@16: {
Chris@16: 
Chris@16:     ///////////////////////////////////////////////////////////////////////////////
Chris@16:     // modifier
Chris@16:     template<typename Modifier>
Chris@16:     struct modifier_op
Chris@16:     {
Chris@16:         typedef regex_constants::syntax_option_type opt_type;
Chris@16: 
Chris@16:         template<typename Expr>
Chris@16:         struct apply
Chris@16:         {
Chris@16:             typedef typename proto::binary_expr<
Chris@16:                 modifier_tag
Chris@16:               , typename proto::terminal<Modifier>::type
Chris@16:               , typename proto::result_of::as_child<Expr const>::type
Chris@16:             >::type type;
Chris@16:         };
Chris@16: 
Chris@16:         template<typename Expr>
Chris@16:         typename apply<Expr>::type const
Chris@16:         operator ()(Expr const &expr) const
Chris@16:         {
Chris@16:             typename apply<Expr>::type that = {{this->mod_}, proto::as_child(expr)};
Chris@16:             return that;
Chris@16:         }
Chris@16: 
Chris@16:         operator opt_type() const
Chris@16:         {
Chris@16:             return this->opt_;
Chris@16:         }
Chris@16: 
Chris@16:         Modifier mod_;
Chris@16:         opt_type opt_;
Chris@16:     };
Chris@16: 
Chris@16: }}}
Chris@16: 
Chris@101: #if defined(_MSC_VER)
Chris@16: # pragma warning(pop)
Chris@16: #endif
Chris@16: 
Chris@16: #endif