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 
plusboost::spirit::x3::plus24         plus(Subject const& subject)
25           : base_type(subject) {}
26 
27         template <typename Iterator, typename Context
28           , typename RContext, typename Attribute>
parseboost::spirit::x3::plus29         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>
operator +(Subject const & subject)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
60