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=============================================================================*/
7#include <string>
8#include <vector>
9
10#include <boost/spirit/home/x3.hpp>
11#include <boost/fusion/include/vector.hpp>
12
13#include <string>
14#include <iostream>
15#include "test.hpp"
16#include "utils.hpp"
17
18struct x_attr
19{
20};
21
22namespace boost { namespace spirit { namespace x3 { namespace traits
23{
24 template <>
25 struct container_value<x_attr>
26 {
27 typedef char type; // value type of container
28 };
29
30 template <>
31 struct push_back_container<x_attr>
32 {
33 static bool call(x_attr& /*c*/, char /*val*/)
34 {
35 // push back value type into container
36 return true;
37 }
38 };
39}}}}
40
41int
42main()
43{
44 using spirit_test::test;
45 using spirit_test::test_attr;
46 using boost::spirit::x3::char_;
47 using boost::spirit::x3::alpha;
48 using boost::spirit::x3::upper;
49 using boost::spirit::x3::space;
50 using boost::spirit::x3::digit;
51 //~ using boost::spirit::x3::no_case;
52 using boost::spirit::x3::int_;
53 using boost::spirit::x3::omit;
54 using boost::spirit::x3::lit;
55 //~ using boost::spirit::x3::_1;
56 using boost::spirit::x3::lexeme;
57
58 BOOST_SPIRIT_ASSERT_CONSTEXPR_CTORS(+char_);
59
60 {
61 BOOST_TEST(test("aaaaaaaa", +char_));
62 BOOST_TEST(test("a", +char_));
63 BOOST_TEST(!test("", +char_));
64 BOOST_TEST(test("aaaaaaaa", +alpha));
65 BOOST_TEST(!test("aaaaaaaa", +upper));
66 }
67
68 {
69 BOOST_TEST(test(" a a aaa aa", +char_, space));
70 BOOST_TEST(test("12345 678 9 ", +digit, space));
71 }
72
73 //~ {
74 //~ BOOST_TEST(test("aBcdeFGH", no_case[+char_]));
75 //~ BOOST_TEST(test("a B cde FGH ", no_case[+char_], space));
76 //~ }
77
78 {
79 std::vector<int> v;
80 BOOST_TEST(test_attr("123 456 789 10", +int_, v, space) && 4 == v.size() &&
81 v[0] == 123 && v[1] == 456 && v[2] == 789 && v[3] == 10);
82 }
83
84 {
85 std::vector<std::string> v;
86 BOOST_TEST(test_attr("a b c d", +lexeme[+alpha], v, space) && 4 == v.size() &&
87 v[0] == "a" && v[1] == "b" && v[2] == "c" && v[3] == "d");
88 }
89
90 {
91 BOOST_TEST(test("Kim Kim Kim", +lit("Kim"), space));
92 }
93
94 // $$$ Fixme $$$
95 /*{
96 // The following 2 tests show that omit does not inhibit explicit attributes
97
98 std::string s;
99 BOOST_TEST(test_attr("bbbb", omit[+char_('b')], s) && s == "bbbb");
100
101 s.clear();
102 BOOST_TEST(test_attr("b b b b ", omit[+char_('b')], s, space) && s == "bbbb");
103 }*/
104
105 { // actions
106 std::string v;
107 auto f = [&](auto& ctx){ v = _attr(ctx); };
108
109 BOOST_TEST(test("bbbb", (+char_)[f]) && 4 == v.size() &&
110 v[0] == 'b' && v[1] == 'b' && v[2] == 'b' && v[3] == 'b');
111 }
112
113 { // more actions
114 std::vector<int> v;
115 auto f = [&](auto& ctx){ v = _attr(ctx); };
116
117 BOOST_TEST(test("1 2 3", (+int_)[f], space) && 3 == v.size() &&
118 v[0] == 1 && v[1] == 2 && v[2] == 3);
119 }
120
121 { // attribute customization
122
123 x_attr x;
124 test_attr(in: "abcde", p: +char_, attr&: x);
125 }
126
127 // single-element fusion vector tests
128 {
129 boost::fusion::vector<std::string> fs;
130 BOOST_TEST((test_attr("12345", +char_, fs))); // ok
131 BOOST_TEST(boost::fusion::at_c<0>(fs) == "12345");
132 }
133
134 { // test move only types
135 std::vector<move_only> v;
136 BOOST_TEST(test_attr("sss", +synth_move_only, v));
137 BOOST_TEST_EQ(v.size(), 3);
138 }
139
140 return boost::report_errors();
141}
142

source code of boost/libs/spirit/test/x3/plus.cpp