/*=============================================================================
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Copyright (c) 2001-2014 Joel de Guzman
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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==============================================================================*/
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#if !defined(BOOST_SPIRIT_X3_PROXY_FEBRUARY_1_2013_0211PM)
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#define BOOST_SPIRIT_X3_PROXY_FEBRUARY_1_2013_0211PM
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#include <boost/spirit/home/x3/core/parser.hpp>
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#include <boost/spirit/home/x3/core/detail/parse_into_container.hpp>
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#include <boost/spirit/home/x3/support/traits/attribute_category.hpp>
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namespace boost { namespace spirit { namespace x3
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{
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template <typename Subject, typename Derived>
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struct proxy : unary_parser<Subject, Derived>
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{
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static bool const is_pass_through_unary = true;
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constexpr proxy(Subject const& subject)
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: unary_parser<Subject, Derived>(subject) {}
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// Overload this when appropriate. The proxy parser will pick up
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// the most derived overload.
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template <typename Iterator, typename Context
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, typename RuleContext, typename Attribute, typename Category>
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bool parse_subject(Iterator& first, Iterator const& last
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, Context const& context, RuleContext& rcontext, Attribute& attr, Category) const
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{
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this->subject.parse(first, last, context, rcontext, attr);
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return true;
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}
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// Main entry point.
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template <typename Iterator, typename Context
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, typename RuleContext, typename Attribute>
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bool parse(Iterator& first, Iterator const& last
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, Context const& context, RuleContext& rcontext, Attribute& attr) const
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{
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return this->derived().parse_subject(first, last, context, rcontext, attr
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, typename traits::attribute_category<Attribute>::type());
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}
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};
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}}}
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#endif
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