76 lines
2.8 KiB
C++
76 lines
2.8 KiB
C++
/*=============================================================================
|
|
Copyright (c) 2001-2014 Joel de Guzman
|
|
|
|
Distributed under the Boost Software License, Version 1.0. (See accompanying
|
|
file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
|
=============================================================================*/
|
|
#if !defined(BOOST_SPIRIT_X3_SEQUENCE_JAN_06_2013_1015AM)
|
|
#define BOOST_SPIRIT_X3_SEQUENCE_JAN_06_2013_1015AM
|
|
|
|
#include <boost/spirit/home/x3/support/traits/attribute_of_binary.hpp>
|
|
#include <boost/spirit/home/x3/core/parser.hpp>
|
|
#include <boost/spirit/home/x3/operator/detail/sequence.hpp>
|
|
#include <boost/spirit/home/x3/directive/expect.hpp>
|
|
|
|
#include <boost/fusion/include/deque_fwd.hpp>
|
|
|
|
namespace boost { namespace spirit { namespace x3
|
|
{
|
|
template <typename Left, typename Right>
|
|
struct sequence : binary_parser<Left, Right, sequence<Left, Right>>
|
|
{
|
|
typedef binary_parser<Left, Right, sequence<Left, Right>> base_type;
|
|
|
|
constexpr sequence(Left const& left, Right const& right)
|
|
: base_type(left, right) {}
|
|
|
|
template <typename Iterator, typename Context, typename RContext>
|
|
bool parse(
|
|
Iterator& first, Iterator const& last
|
|
, Context const& context, RContext& rcontext, unused_type) const
|
|
{
|
|
Iterator save = first;
|
|
if (this->left.parse(first, last, context, rcontext, unused)
|
|
&& this->right.parse(first, last, context, rcontext, unused))
|
|
return true;
|
|
first = save;
|
|
return false;
|
|
}
|
|
|
|
template <typename Iterator, typename Context
|
|
, typename RContext, typename Attribute>
|
|
bool parse(
|
|
Iterator& first, Iterator const& last
|
|
, Context const& context, RContext& rcontext, Attribute& attr) const
|
|
{
|
|
return detail::parse_sequence(*this, first, last, context, rcontext, attr
|
|
, typename traits::attribute_category<Attribute>::type());
|
|
}
|
|
};
|
|
|
|
template <typename Left, typename Right>
|
|
constexpr sequence<
|
|
typename extension::as_parser<Left>::value_type
|
|
, typename extension::as_parser<Right>::value_type>
|
|
operator>>(Left const& left, Right const& right)
|
|
{
|
|
return { as_parser(left), as_parser(right) };
|
|
}
|
|
|
|
template <typename Left, typename Right>
|
|
constexpr auto operator>(Left const& left, Right const& right)
|
|
-> decltype(left >> expect[right])
|
|
{
|
|
return left >> expect[right];
|
|
}
|
|
}}}
|
|
|
|
namespace boost { namespace spirit { namespace x3 { namespace traits
|
|
{
|
|
template <typename Left, typename Right, typename Context>
|
|
struct attribute_of<x3::sequence<Left, Right>, Context>
|
|
: x3::detail::attribute_of_binary<fusion::deque, x3::sequence, Left, Right, Context> {};
|
|
}}}}
|
|
|
|
#endif
|