44 lines
1.5 KiB
C++
44 lines
1.5 KiB
C++
/*=============================================================================
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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_AND_PREDICATE_MARCH_23_2007_0617PM)
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#define BOOST_SPIRIT_X3_AND_PREDICATE_MARCH_23_2007_0617PM
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#include <boost/spirit/home/x3/core/parser.hpp>
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namespace boost { namespace spirit { namespace x3
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{
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template <typename Subject>
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struct and_predicate : unary_parser<Subject, and_predicate<Subject>>
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{
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typedef unary_parser<Subject, and_predicate<Subject>> base_type;
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typedef unused_type attribute_type;
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static bool const has_attribute = false;
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constexpr and_predicate(Subject const& subject)
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: base_type(subject) {}
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template <typename Iterator, typename Context
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, typename RContext, typename Attribute>
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bool parse(Iterator& first, Iterator const& last
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, Context const& context, RContext& rcontext, Attribute& /*attr*/) const
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{
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Iterator i = first;
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return this->subject.parse(i, last, context, rcontext, unused);
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}
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};
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template <typename Subject>
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constexpr and_predicate<typename extension::as_parser<Subject>::value_type>
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operator&(Subject const& subject)
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{
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return { as_parser(subject) };
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}
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}}}
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#endif
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