1 | /*============================================================================= |
2 | Copyright (c) 2001-2011 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 | =============================================================================*/ |
7 | #include <boost/spirit/include/qi_optional.hpp> |
8 | |
9 | #include <boost/spirit/include/qi_char.hpp> |
10 | #include <boost/spirit/include/qi_numeric.hpp> |
11 | #include <boost/spirit/include/qi_operator.hpp> |
12 | #include <boost/spirit/include/qi_action.hpp> |
13 | #include <boost/spirit/include/qi_directive.hpp> |
14 | #include <boost/spirit/include/support_argument.hpp> |
15 | #include <boost/phoenix/core.hpp> |
16 | #include <boost/phoenix/operator.hpp> |
17 | #include <boost/fusion/adapted/struct.hpp> |
18 | |
19 | #include <iostream> |
20 | #include "test.hpp" |
21 | |
22 | #ifdef _MSC_VER |
23 | // bogus https://developercommunity.visualstudio.com/t/buggy-warning-c4709/471956 |
24 | # pragma warning(disable: 4709) // comma operator within array index expression |
25 | #endif |
26 | |
27 | struct adata |
28 | { |
29 | int a; |
30 | boost::optional<int> b; |
31 | }; |
32 | |
33 | BOOST_FUSION_ADAPT_STRUCT( |
34 | adata, |
35 | (int, a) |
36 | (boost::optional<int>, b) |
37 | ) |
38 | |
39 | struct test_attribute_type |
40 | { |
41 | template <typename Attribute, typename Context> |
42 | void operator()(Attribute&, Context&, bool&) const |
43 | { |
44 | BOOST_TEST(typeid(Attribute).name() == typeid(boost::optional<int>).name()); |
45 | } |
46 | }; |
47 | |
48 | int |
49 | main() |
50 | { |
51 | using spirit_test::test; |
52 | using spirit_test::test_attr; |
53 | |
54 | using boost::spirit::qi::_1; |
55 | using boost::spirit::qi::int_; |
56 | using boost::spirit::qi::omit; |
57 | using boost::spirit::ascii::char_; |
58 | |
59 | { |
60 | BOOST_TEST((test("1234" , -int_))); |
61 | BOOST_TEST((test("abcd" , -int_, false))); |
62 | |
63 | boost::optional<int> n; |
64 | BOOST_TEST(test_attr("" , -int_, n)) |
65 | && BOOST_TEST(!n); |
66 | BOOST_TEST(test_attr("123" , -int_, n)) |
67 | && BOOST_TEST(n) && BOOST_TEST_EQ(*n, 123); |
68 | |
69 | boost::optional<std::string> s; |
70 | BOOST_TEST(test_attr("" , -+char_, s)) |
71 | && BOOST_TEST(!s); |
72 | BOOST_TEST(test_attr("abc" , -+char_, s)) |
73 | && BOOST_TEST(s) && BOOST_TEST_EQ(*s, "abc" ); |
74 | } |
75 | |
76 | { // test propagation of unused |
77 | using boost::fusion::at_c; |
78 | using boost::fusion::vector; |
79 | |
80 | vector<char, char> v; |
81 | BOOST_TEST((test_attr("a1234c" , char_ >> -omit[int_] >> char_, v))); |
82 | BOOST_TEST((at_c<0>(v) == 'a')); |
83 | BOOST_TEST((at_c<1>(v) == 'c')); |
84 | |
85 | v = boost::fusion::vector<char, char>(); |
86 | BOOST_TEST((test_attr("a1234c" , char_ >> omit[-int_] >> char_, v))); |
87 | BOOST_TEST((at_c<0>(v) == 'a')); |
88 | BOOST_TEST((at_c<1>(v) == 'c')); |
89 | |
90 | char ch; |
91 | BOOST_TEST((test_attr(",c" , -(',' >> char_), ch))); |
92 | BOOST_TEST((ch == 'c')); |
93 | } |
94 | |
95 | { // test action |
96 | boost::optional<int> n = 0; |
97 | BOOST_TEST((test_attr("1234" , (-int_)[test_attribute_type()], n))); |
98 | BOOST_TEST((n.get() == 1234)); |
99 | } |
100 | |
101 | { |
102 | std::string s; |
103 | BOOST_TEST((test_attr("abc" , char_ >> -(char_ >> char_), s))); |
104 | BOOST_TEST(s == "abc" ); |
105 | } |
106 | |
107 | { |
108 | namespace phx = boost::phoenix; |
109 | |
110 | boost::optional<int> n = 0; |
111 | BOOST_TEST((test("1234" , (-int_)[phx::ref(n) = _1]))); |
112 | BOOST_TEST(n.get() == 1234); |
113 | |
114 | n = boost::optional<int>(); |
115 | BOOST_TEST((test("abcd" , (-int_)[phx::ref(n) = _1], false))); |
116 | BOOST_TEST(!n); |
117 | } |
118 | |
119 | { |
120 | std::vector<adata> v; |
121 | BOOST_TEST((test_attr("a 1 2 a 2" , *("a" >> int_ >> -int_), v |
122 | , char_(' ')))); |
123 | BOOST_TEST(2 == v.size() && |
124 | 1 == v[0].a && v[0].b && 2 == *(v[0].b) && |
125 | 2 == v[1].a && !v[1].b); |
126 | } |
127 | |
128 | return boost::report_errors(); |
129 | } |
130 | |