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