projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
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 | ||
| 7c673cae FG |
8 | #include <boost/detail/lightweight_test.hpp> |
| 9 | #include <boost/spirit/home/x3.hpp> | |
| 10 | ||
| 11 | #include <string> | |
| 12 | #include <cstring> | |
| 13 | #include <iostream> | |
| 14 | #include "test.hpp" | |
| 15 | ||
| 16 | int | |
| 17 | main() | |
| 18 | { | |
| 19 | using spirit_test::test_attr; | |
| 20 | using spirit_test::test; | |
| 21 | ||
| 22 | using namespace boost::spirit::x3::ascii; | |
| 23 | using boost::spirit::x3::rule; | |
| 7c673cae FG |
24 | using boost::spirit::x3::lit; |
| 25 | using boost::spirit::x3::unused_type; | |
| 26 | using boost::spirit::x3::_attr; | |
| 27 | ||
| 28 | { // context tests | |
| 29 | ||
| 30 | char ch; | |
| 31 | auto a = rule<class a, char>() = alpha; | |
| 32 | ||
| 33 | // this semantic action requires the context | |
| 34 | auto f = [&](auto& ctx){ ch = _attr(ctx); }; | |
| 35 | BOOST_TEST(test("x", a[f])); | |
| 36 | BOOST_TEST(ch == 'x'); | |
| 37 | ||
| 38 | // this semantic action requires the (unused) context | |
| 39 | auto f2 = [&](auto&){ ch = 'y'; }; | |
| 40 | BOOST_TEST(test("x", a[f2])); | |
| 41 | BOOST_TEST(ch == 'y'); | |
| 42 | ||
| 43 | // the semantic action may optionally not have any arguments at all | |
| 44 | auto f3 = [&]{ ch = 'z'; }; | |
| 45 | BOOST_TEST(test("x", a[f3])); | |
| 46 | BOOST_TEST(ch == 'z'); | |
| 47 | ||
| 48 | BOOST_TEST(test_attr("z", a, ch)); // attribute is given. | |
| 49 | BOOST_TEST(ch == 'z'); | |
| 50 | } | |
| 51 | ||
| 52 | { // auto rules tests | |
| 53 | ||
| 54 | char ch = '\0'; | |
| 55 | auto a = rule<class a, char>() = alpha; | |
| 56 | auto f = [&](auto& ctx){ ch = _attr(ctx); }; | |
| 57 | ||
| 58 | BOOST_TEST(test("x", a[f])); | |
| 59 | BOOST_TEST(ch == 'x'); | |
| 60 | ch = '\0'; | |
| 61 | BOOST_TEST(test_attr("z", a, ch)); // attribute is given. | |
| 62 | BOOST_TEST(ch == 'z'); | |
| 63 | ||
| 64 | ch = '\0'; | |
| 65 | BOOST_TEST(test("x", a[f])); | |
| 66 | BOOST_TEST(ch == 'x'); | |
| 67 | ch = '\0'; | |
| 68 | BOOST_TEST(test_attr("z", a, ch)); // attribute is given. | |
| 69 | BOOST_TEST(ch == 'z'); | |
| 70 | } | |
| 71 | ||
| 72 | { // auto rules tests: allow stl containers as attributes to | |
| 73 | // sequences (in cases where attributes of the elements | |
| 74 | // are convertible to the value_type of the container or if | |
| 75 | // the element itself is an stl container with value_type | |
| 76 | // that is convertible to the value_type of the attribute). | |
| 77 | ||
| 78 | std::string s; | |
| 79 | auto f = [&](auto& ctx){ s = _attr(ctx); }; | |
| 80 | ||
| 81 | { | |
| 82 | auto r = rule<class r, std::string>() | |
| 83 | = char_ >> *(',' >> char_) | |
| 84 | ; | |
| 85 | ||
| 86 | BOOST_TEST(test("a,b,c,d,e,f", r[f])); | |
| 87 | BOOST_TEST(s == "abcdef"); | |
| 88 | } | |
| 89 | ||
| 90 | { | |
| 91 | auto r = rule<class r, std::string>() | |
| 92 | = char_ >> *(',' >> char_); | |
| 93 | s.clear(); | |
| 94 | BOOST_TEST(test("a,b,c,d,e,f", r[f])); | |
| 95 | BOOST_TEST(s == "abcdef"); | |
| 96 | } | |
| 97 | ||
| 98 | { | |
| 99 | auto r = rule<class r, std::string>() | |
| 100 | = char_ >> char_ >> char_ >> char_ >> char_ >> char_; | |
| 101 | s.clear(); | |
| 102 | BOOST_TEST(test("abcdef", r[f])); | |
| 103 | BOOST_TEST(s == "abcdef"); | |
| 104 | } | |
| 105 | } | |
| 106 | ||
| 107 | return boost::report_errors(); | |
| 108 | } |