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1 | /*============================================================================= |
2 | Copyright (c) 2001-2014 Joel de Guzman | |
3 | ||
4 | Distributed under the Boost Software License, Version 1.0. (See accompanying | |
5 | file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
6 | =============================================================================*/ | |
11fdf7f2 TL |
7 | #if !defined(BOOST_SPIRIT_X3_SEQUENCE_JAN_06_2013_1015AM) |
8 | #define BOOST_SPIRIT_X3_SEQUENCE_JAN_06_2013_1015AM | |
7c673cae | 9 | |
20effc67 | 10 | #include <boost/spirit/home/x3/support/traits/attribute_of_binary.hpp> |
7c673cae FG |
11 | #include <boost/spirit/home/x3/core/parser.hpp> |
12 | #include <boost/spirit/home/x3/operator/detail/sequence.hpp> | |
13 | #include <boost/spirit/home/x3/directive/expect.hpp> | |
14 | ||
20effc67 TL |
15 | #include <boost/fusion/include/deque_fwd.hpp> |
16 | ||
7c673cae FG |
17 | namespace boost { namespace spirit { namespace x3 |
18 | { | |
19 | template <typename Left, typename Right> | |
20 | struct sequence : binary_parser<Left, Right, sequence<Left, Right>> | |
21 | { | |
22 | typedef binary_parser<Left, Right, sequence<Left, Right>> base_type; | |
23 | ||
f67539c2 | 24 | constexpr sequence(Left const& left, Right const& right) |
7c673cae FG |
25 | : base_type(left, right) {} |
26 | ||
27 | template <typename Iterator, typename Context, typename RContext> | |
28 | bool parse( | |
29 | Iterator& first, Iterator const& last | |
30 | , Context const& context, RContext& rcontext, unused_type) const | |
31 | { | |
32 | Iterator save = first; | |
33 | if (this->left.parse(first, last, context, rcontext, unused) | |
34 | && this->right.parse(first, last, context, rcontext, unused)) | |
35 | return true; | |
36 | first = save; | |
37 | return false; | |
38 | } | |
39 | ||
40 | template <typename Iterator, typename Context | |
41 | , typename RContext, typename Attribute> | |
42 | bool parse( | |
43 | Iterator& first, Iterator const& last | |
44 | , Context const& context, RContext& rcontext, Attribute& attr) const | |
45 | { | |
46 | return detail::parse_sequence(*this, first, last, context, rcontext, attr | |
47 | , typename traits::attribute_category<Attribute>::type()); | |
48 | } | |
49 | }; | |
50 | ||
51 | template <typename Left, typename Right> | |
f67539c2 | 52 | constexpr sequence< |
7c673cae FG |
53 | typename extension::as_parser<Left>::value_type |
54 | , typename extension::as_parser<Right>::value_type> | |
55 | operator>>(Left const& left, Right const& right) | |
56 | { | |
57 | return { as_parser(left), as_parser(right) }; | |
58 | } | |
59 | ||
60 | template <typename Left, typename Right> | |
f67539c2 | 61 | constexpr auto operator>(Left const& left, Right const& right) |
7c673cae FG |
62 | { |
63 | return left >> expect[right]; | |
64 | } | |
65 | }}} | |
66 | ||
67 | namespace boost { namespace spirit { namespace x3 { namespace traits | |
68 | { | |
69 | template <typename Left, typename Right, typename Context> | |
70 | struct attribute_of<x3::sequence<Left, Right>, Context> | |
20effc67 | 71 | : x3::detail::attribute_of_binary<fusion::deque, x3::sequence, Left, Right, Context> {}; |
7c673cae FG |
72 | }}}} |
73 | ||
74 | #endif |