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1 | /*============================================================================= |
2 | Copyright (c) 2001-2014 Joel de Guzman | |
3 | Copyright (c) 2001-2011 Hartmut Kaiser | |
4 | ||
5 | Distributed under the Boost Software License, Version 1.0. (See accompanying | |
6 | file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
7 | =============================================================================*/ | |
8 | #if !defined(SPIRIT_PLUS_MARCH_13_2007_0127PM) | |
9 | #define SPIRIT_PLUS_MARCH_13_2007_0127PM | |
10 | ||
11 | #include <boost/spirit/home/x3/core/parser.hpp> | |
12 | #include <boost/spirit/home/x3/support/traits/container_traits.hpp> | |
13 | #include <boost/spirit/home/x3/support/traits/attribute_of.hpp> | |
14 | #include <boost/spirit/home/x3/core/detail/parse_into_container.hpp> | |
15 | ||
16 | namespace boost { namespace spirit { namespace x3 | |
17 | { | |
18 | template <typename Subject> | |
19 | struct plus : unary_parser<Subject, plus<Subject>> | |
20 | { | |
21 | typedef unary_parser<Subject, plus<Subject>> base_type; | |
22 | static bool const handles_container = true; | |
23 | ||
24 | plus(Subject const& subject) | |
25 | : base_type(subject) {} | |
26 | ||
27 | template <typename Iterator, typename Context | |
28 | , typename RContext, typename Attribute> | |
29 | bool parse(Iterator& first, Iterator const& last | |
30 | , Context const& context, RContext& rcontext, Attribute& attr) const | |
31 | { | |
32 | if (!detail::parse_into_container( | |
33 | this->subject, first, last, context, rcontext, attr)) | |
34 | return false; | |
35 | ||
36 | while (detail::parse_into_container( | |
37 | this->subject, first, last, context, rcontext, attr)) | |
38 | ; | |
39 | return true; | |
40 | } | |
41 | }; | |
42 | ||
43 | template <typename Subject> | |
44 | inline plus<typename extension::as_parser<Subject>::value_type> | |
45 | operator+(Subject const& subject) | |
46 | { | |
47 | return { as_parser(subject) }; | |
48 | } | |
49 | }}} | |
50 | ||
51 | namespace boost { namespace spirit { namespace x3 { namespace traits | |
52 | { | |
53 | template <typename Subject, typename Context> | |
54 | struct attribute_of<x3::plus<Subject>, Context> | |
55 | : build_container< | |
56 | typename attribute_of<Subject, Context>::type> {}; | |
57 | }}}} | |
58 | ||
59 | #endif |