/usr/include/boost/xpressive/detail/static/transforms
Edit: /usr/include/boost/xpressive/detail/static/transforms/as_marker.hpp (2025B)
///////////////////////////////////////////////////////////////////////////////
// as_marker.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_TRANSFORMS_AS_MARKER_HPP_EAN_04_01_2007
#define BOOST_XPRESSIVE_DETAIL_STATIC_TRANSFORMS_AS_MARKER_HPP_EAN_04_01_2007
// MS compatible compilers support #pragma once
#if defined(_MSC_VER)
# pragma once
#endif
#include
#include
#include
namespace boost { namespace xpressive { namespace grammar_detail
{
///////////////////////////////////////////////////////////////////////////////
// as_marker
// Insert mark tags before and after the expression
struct as_marker : proto::transform
{
template
struct impl : proto::transform_impl
{
typedef
typename shift_right<
terminal::type
, typename shift_right<
typename proto::result_of::right::type
, terminal::type
>::type
>::type
result_type;
result_type operator ()(
typename impl::expr_param expr
, typename impl::state_param
, typename impl::data_param
) const
{
int mark_nbr = detail::get_mark_number(proto::left(expr));
detail::mark_begin_matcher begin(mark_nbr);
detail::mark_end_matcher end(mark_nbr);
result_type that = {{begin}, {proto::right(expr), {end}}};
return that;
}
};
};
}}}
#endif