67 lines
1.9 KiB
C++
67 lines
1.9 KiB
C++
///////////////////////////////////////////////////////////////////////////////
|
|
// 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)
|
|
# 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)
|
|
# pragma warning(pop)
|
|
#endif
|
|
|
|
#endif
|