1 // Copyright (c) 2002-2010 Joel de Guzman
2 //
3 // Distributed under the Boost Software License, Version 1.0. (See accompanying
4 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
5
6 #include <boost/config/warning_disable.hpp>
7 #include <boost/spirit/include/qi.hpp>
8 #include <boost/spirit/include/phoenix_core.hpp>
9 #include <boost/spirit/include/phoenix_operator.hpp>
10 #include <boost/spirit/include/phoenix_object.hpp>
11 #include <boost/spirit/include/phoenix_stl.hpp>
12 #include <boost/fusion/include/adapt_struct.hpp>
13 #include <boost/fusion/include/io.hpp>
14
15 #include <iostream>
16 #include <string>
17 #include <complex>
18
19 using boost::spirit::qi::grammar;
20 using boost::spirit::qi::rule;
21 using boost::spirit::qi::char_;
22 using boost::spirit::qi::parse;
23 using boost::spirit::qi::_val;
24 using boost::spirit::qi::_1;
25 using boost::phoenix::push_back;
26
27 #define ATTR_PROPAGATE
28
29 struct test_attr
30 {
test_attrtest_attr31 test_attr()
32 {
33 std::cout << "default construct" << std::endl;
34 }
35
test_attrtest_attr36 test_attr(char)
37 {
38 std::cout << "construct from char" << std::endl;
39 }
40
test_attrtest_attr41 test_attr(test_attr const&)
42 {
43 std::cout << "copy construct" << std::endl;
44 }
45
operator =test_attr46 test_attr& operator=(test_attr const&)
47 {
48 std::cout << "assign" << std::endl;
49 return *this;
50 }
51 };
52
53 template <typename Iterator>
54 struct test_parser : grammar<Iterator, std::vector<test_attr>() >
55 {
test_parsertest_parser56 test_parser() : test_parser::base_type(start)
57 {
58 #ifdef ATTR_PROPAGATE
59 start = char_ >> *(',' >> char_);
60 #else
61 start = char_[push_back(_val, _1)] >> *(',' >> char_[push_back(_val, _1)]);
62 #endif
63 }
64
65 rule<Iterator, std::vector<test_attr>()> start;
66 };
67
main()68 int main()
69 {
70 typedef std::string::const_iterator iterator_type;
71 typedef test_parser<iterator_type> test_parser;
72
73 test_parser g;
74 std::string str = "a,b,c,d,e";
75
76 std::vector<test_attr> result;
77 result.reserve(20);
78 std::string::const_iterator iter = str.begin();
79 std::string::const_iterator end = str.end();
80 bool r = parse(iter, end, g, result);
81
82 if (r && iter == end)
83 {
84 std::cout << "-------------------------\n";
85 std::cout << "Parsing succeeded\n";
86 std::cout << "\n-------------------------\n";
87 }
88 else
89 {
90 std::cout << "-------------------------\n";
91 std::cout << "Parsing failed\n";
92 std::cout << "-------------------------\n";
93 }
94
95 std::cout << "Bye... :-) \n\n";
96 return 0;
97 }
98
99