1/*=============================================================================
2 Copyright (c) 2001-2011 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_LIST_MARCH_24_2007_1031AM)
9#define SPIRIT_LIST_MARCH_24_2007_1031AM
10
11#if defined(_MSC_VER)
12#pragma once
13#endif
14
15#include <boost/spirit/home/qi/meta_compiler.hpp>
16#include <boost/spirit/home/qi/parser.hpp>
17#include <boost/spirit/home/support/container.hpp>
18#include <boost/spirit/home/qi/detail/attributes.hpp>
19#include <boost/spirit/home/qi/detail/fail_function.hpp>
20#include <boost/spirit/home/qi/detail/pass_container.hpp>
21#include <boost/spirit/home/support/has_semantic_action.hpp>
22#include <boost/spirit/home/support/handles_container.hpp>
23#include <boost/spirit/home/support/info.hpp>
24#include <vector>
25
26namespace boost { namespace spirit
27{
28 ///////////////////////////////////////////////////////////////////////////
29 // Enablers
30 ///////////////////////////////////////////////////////////////////////////
31 template <>
32 struct use_operator<qi::domain, proto::tag::modulus> // enables p % d
33 : mpl::true_ {};
34}}
35
36namespace boost { namespace spirit { namespace qi
37{
38 template <typename Left, typename Right>
39 struct list : binary_parser<list<Left, Right> >
40 {
41 typedef Left left_type;
42 typedef Right right_type;
43
44 template <typename Context, typename Iterator>
45 struct attribute
46 {
47 // Build a std::vector from the LHS's attribute. Note
48 // that build_std_vector may return unused_type if the
49 // subject's attribute is an unused_type.
50 typedef typename
51 traits::build_std_vector<
52 typename traits::
53 attribute_of<Left, Context, Iterator>::type
54 >::type
55 type;
56 };
57
58 list(Left const& left_, Right const& right_)
59 : left(left_), right(right_) {}
60
61 template <typename F>
62 bool parse_container(F f) const
63 {
64 // in order to succeed we need to match at least one element
65 if (f (left))
66 return false;
67
68 typename F::iterator_type save = f.f.first;
69 while (right.parse(f.f.first, f.f.last, f.f.context, f.f.skipper, unused)
70 && !f (left))
71 {
72 save = f.f.first;
73 }
74
75 f.f.first = save;
76 return true;
77 }
78
79 template <typename Iterator, typename Context
80 , typename Skipper, typename Attribute>
81 bool parse(Iterator& first, Iterator const& last
82 , Context& context, Skipper const& skipper
83 , Attribute& attr_) const
84 {
85 typedef detail::fail_function<Iterator, Context, Skipper>
86 fail_function;
87
88 // ensure the attribute is actually a container type
89 traits::make_container(attr_);
90
91 Iterator iter = first;
92 fail_function f(iter, last, context, skipper);
93 if (!parse_container(detail::make_pass_container(f, attr_)))
94 return false;
95
96 first = f.first;
97 return true;
98 }
99
100 template <typename Context>
101 info what(Context& context) const
102 {
103 return info("list",
104 std::make_pair(left.what(context), right.what(context)));
105 }
106
107 Left left;
108 Right right;
109 };
110
111 ///////////////////////////////////////////////////////////////////////////
112 // Parser generators: make_xxx function (objects)
113 ///////////////////////////////////////////////////////////////////////////
114 template <typename Elements, typename Modifiers>
115 struct make_composite<proto::tag::modulus, Elements, Modifiers>
116 : make_binary_composite<Elements, list>
117 {};
118}}}
119
120namespace boost { namespace spirit { namespace traits
121{
122 ///////////////////////////////////////////////////////////////////////////
123 template <typename Left, typename Right>
124 struct has_semantic_action<qi::list<Left, Right> >
125 : binary_has_semantic_action<Left, Right> {};
126
127 ///////////////////////////////////////////////////////////////////////////
128 template <typename Left, typename Right, typename Attribute
129 , typename Context, typename Iterator>
130 struct handles_container<qi::list<Left, Right>, Attribute, Context
131 , Iterator>
132 : mpl::true_ {};
133}}}
134
135#endif
136

source code of qtlocation/src/3rdparty/mapbox-gl-native/deps/boost/1.65.1/include/boost/spirit/home/qi/operator/list.hpp