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1 | /*============================================================================= |
2 | Copyright (c) 2001-2015 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 | =============================================================================*/ | |
7c673cae | 7 | #include <boost/spirit/home/x3.hpp> |
11fdf7f2 | 8 | #include <boost/fusion/include/at_key.hpp> |
7c673cae FG |
9 | #include <boost/fusion/include/make_map.hpp> |
10 | #include <boost/fusion/adapted/struct.hpp> | |
11 | ||
12 | #include <string> | |
13 | #include <iostream> | |
14 | #include "test.hpp" | |
15 | ||
16 | struct AdaptedStruct { | |
17 | std::string key1; | |
18 | std::string key2; | |
19 | }; | |
20 | ||
21 | class key1_attr {}; | |
22 | class key2_attr {}; | |
23 | ||
24 | BOOST_FUSION_ADAPT_ASSOC_STRUCT( | |
25 | AdaptedStruct, | |
26 | (std::string, key1, class key1_attr) | |
27 | (std::string, key2, class key2_attr) | |
28 | ) | |
29 | ||
30 | template <class Parser, class Attribute> | |
31 | bool test_attr(const std::string in,Parser const& p, Attribute& attr) { | |
32 | auto it = in.begin(); | |
33 | return boost::spirit::x3::parse(it,in.end(), p, attr); | |
34 | } | |
35 | ||
7c673cae FG |
36 | int |
37 | main() | |
38 | { | |
39 | using spirit_test::test; | |
40 | using boost::spirit::x3::lit; | |
41 | using boost::spirit::x3::attr; | |
42 | using boost::spirit::x3::char_; | |
43 | using boost::spirit::x3::eps; | |
44 | namespace fusion = boost::fusion; | |
45 | ||
46 | { // parsing sequence directly into fusion map | |
47 | ||
48 | auto const key1 = lit("key1") >> attr(key1_attr()); | |
49 | auto const kv1 = key1 >> lit("=") >> +char_; | |
50 | ||
51 | { | |
52 | auto attr_ = fusion::make_map<key1_attr>(std::string()); | |
53 | BOOST_TEST(test_attr("key1=ABC", kv1, attr_)); | |
54 | BOOST_TEST(fusion::at_key<key1_attr>(attr_) == "ABC"); | |
55 | } | |
56 | { | |
57 | AdaptedStruct attr_; | |
58 | BOOST_TEST(test_attr("key1=ABC", kv1, attr_)); | |
59 | BOOST_TEST(attr_.key1 == "ABC"); | |
60 | BOOST_TEST(attr_.key2 == ""); | |
61 | } | |
62 | } | |
63 | { // case when parser handling fusion assoc sequence | |
64 | // is on one side of another sequence | |
65 | auto const key1 = lit("key1") >> attr(key1_attr()); | |
66 | auto const kv1 = key1 >> lit("=") >> +~char_(';'); | |
67 | ||
68 | AdaptedStruct attr_; | |
69 | BOOST_TEST(test_attr("key1=ABC", eps >> (kv1 % ';') , attr_)); | |
70 | BOOST_TEST(attr_.key1 == "ABC"); | |
71 | BOOST_TEST(attr_.key2 == ""); | |
72 | } | |
73 | { // parsing repeated sequence directly into fusion map (overwrite) | |
74 | auto const key1 = lit("key1") >> attr(key1_attr()); | |
75 | auto const kv1 = key1 >> lit("=") >> +~char_(';'); | |
76 | ||
77 | { | |
78 | auto attr_ = fusion::make_map<key1_attr>(std::string()); | |
79 | BOOST_TEST(test_attr("key1=ABC;key1=XYZ", kv1 % ';', attr_)); | |
80 | BOOST_TEST(fusion::at_key<key1_attr>(attr_) == "XYZ"); | |
81 | } | |
82 | { | |
83 | AdaptedStruct attr_; | |
84 | BOOST_TEST(test_attr("key1=ABC;key1=XYZ", kv1 % ';', attr_)); | |
85 | BOOST_TEST(attr_.key1 == "XYZ"); | |
86 | } | |
87 | } | |
88 | ||
89 | { // parsing repeated sequence directly into fusion map (append) | |
90 | ||
91 | /* NOT IMPLEMENTED | |
92 | auto const key1 = lit("key1") >> attr(key1_attr()); | |
93 | auto const kv1 = key1 >> lit("=") >> +char_; | |
94 | auto attr_ = fusion::make_map<key1_attr>(std::vector<std::string>()); | |
95 | ||
96 | BOOST_TEST(test_attr("key1=ABC;key1=XYZ", kv1 % ";", attr_)); | |
97 | BOOST_TEST(fusion::at_key<key1_attr>(attr_) == {"ABC","XYZ"}); | |
98 | */ | |
99 | } | |
100 | ||
101 | { // alternative over key-value pairs | |
102 | ||
103 | auto const key1 = lit("key1") >> attr(key1_attr()); | |
104 | auto const key2 = lit("key2") >> attr(key2_attr()); | |
105 | auto const kv1 = key1 >> lit("=") >> +~char_(';'); | |
106 | auto const kv2 = key2 >> lit("=") >> +~char_(';'); | |
107 | ||
108 | auto attr_ = fusion::make_map<key1_attr, key2_attr>(std::string(),std::string()); | |
109 | BOOST_TEST(test_attr("key2=XYZ;key1=ABC", (kv1|kv2) % ';', attr_)); | |
110 | BOOST_TEST(fusion::at_key<key1_attr>(attr_) == "ABC"); | |
111 | BOOST_TEST(fusion::at_key<key2_attr>(attr_) == "XYZ"); | |
112 | } | |
113 | ||
114 | { // parsing sequence where key is a variant | |
115 | ||
116 | namespace x3 = boost::spirit::x3; | |
117 | auto key1 = lit("key1") >> attr(key1_attr()); | |
118 | auto key2 = lit("key2") >> attr(key2_attr()); | |
119 | auto keys = key1 | key2; | |
120 | auto pair = keys >> lit("=") >> +~char_(';'); | |
121 | ||
122 | { | |
123 | auto attr_ = fusion::make_map<key1_attr,key2_attr>(std::string(),std::string()); | |
124 | BOOST_TEST(test_attr("key1=ABC;key2=XYZ", pair % ';', attr_)); | |
125 | BOOST_TEST(fusion::at_key<key1_attr>(attr_) == "ABC"); | |
126 | BOOST_TEST(fusion::at_key<key2_attr>(attr_) == "XYZ"); | |
127 | } | |
128 | { | |
129 | AdaptedStruct attr_; | |
130 | BOOST_TEST(test_attr("key1=ABC;key2=XYZ", pair % ';', attr_)); | |
131 | BOOST_TEST(fusion::at_key<key1_attr>(attr_) == "ABC"); | |
132 | BOOST_TEST(fusion::at_key<key2_attr>(attr_) == "XYZ"); | |
133 | } | |
134 | } | |
135 | ||
136 | return boost::report_errors(); | |
137 | } |