49 lines
1.2 KiB
C++
49 lines
1.2 KiB
C++
#ifndef BOOST_METAPARSE_V1_KEEP_MIDDLE_HPP
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#define BOOST_METAPARSE_V1_KEEP_MIDDLE_HPP
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// Copyright Abel Sinkovics (abel@sinkovics.hu) 2009 - 2010.
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#include <boost/metaparse/v1/nth_of.hpp>
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#include <boost/metaparse/v1/transform_error_message.hpp>
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#include <boost/metaparse/v1/get_col.hpp>
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#include <boost/metaparse/v1/get_line.hpp>
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#include <boost/metaparse/v1/error/unpaired.hpp>
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namespace boost
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{
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namespace metaparse
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{
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namespace v1
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{
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template <class P1, class P2, class P3>
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struct middle_of
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{
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typedef middle_of type;
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template <class S, class Pos>
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struct apply :
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nth_of_c<
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1,
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P1,
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P2,
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transform_error_message<
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P3,
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error::unpaired<
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get_line<Pos>::type::value,
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get_col<Pos>::type::value
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>
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>
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>::template apply<S, Pos>
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{};
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};
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}
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}
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}
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#endif
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