60 lines
2.1 KiB
C++
60 lines
2.1 KiB
C++
/*=============================================================================
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Copyright (c) 2001-2014 Joel de Guzman
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Copyright (c) 2001-2011 Hartmut Kaiser
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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_PLUS_MARCH_13_2007_0127PM)
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#define BOOST_SPIRIT_X3_PLUS_MARCH_13_2007_0127PM
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#include <boost/spirit/home/x3/core/parser.hpp>
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#include <boost/spirit/home/x3/support/traits/container_traits.hpp>
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#include <boost/spirit/home/x3/support/traits/attribute_of.hpp>
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#include <boost/spirit/home/x3/core/detail/parse_into_container.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 plus : unary_parser<Subject, plus<Subject>>
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{
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typedef unary_parser<Subject, plus<Subject>> base_type;
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static bool const handles_container = true;
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constexpr plus(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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if (!detail::parse_into_container(
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this->subject, first, last, context, rcontext, attr))
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return false;
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while (detail::parse_into_container(
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this->subject, first, last, context, rcontext, attr))
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;
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return true;
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}
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};
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template <typename Subject>
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constexpr plus<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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namespace boost { namespace spirit { namespace x3 { namespace traits
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{
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template <typename Subject, typename Context>
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struct attribute_of<x3::plus<Subject>, Context>
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: build_container<
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typename attribute_of<Subject, Context>::type> {};
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}}}}
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#endif
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