99 lines
2.4 KiB
C++
99 lines
2.4 KiB
C++
// Copyright (c) 2002-2010 Joel de Guzman
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#include <boost/config/warning_disable.hpp>
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#include <boost/spirit/include/qi.hpp>
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#include <boost/spirit/include/phoenix_core.hpp>
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#include <boost/spirit/include/phoenix_operator.hpp>
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#include <boost/spirit/include/phoenix_object.hpp>
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#include <boost/spirit/include/phoenix_stl.hpp>
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#include <boost/fusion/include/adapt_struct.hpp>
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#include <boost/fusion/include/io.hpp>
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#include <iostream>
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#include <string>
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#include <complex>
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using boost::spirit::qi::grammar;
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using boost::spirit::qi::rule;
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using boost::spirit::qi::char_;
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using boost::spirit::qi::parse;
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using boost::spirit::qi::_val;
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using boost::spirit::qi::_1;
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using boost::phoenix::push_back;
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#define ATTR_PROPAGATE
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struct test_attr
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{
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test_attr()
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{
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std::cout << "default construct" << std::endl;
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}
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test_attr(char)
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{
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std::cout << "construct from char" << std::endl;
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}
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test_attr(test_attr const&)
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{
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std::cout << "copy construct" << std::endl;
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}
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test_attr& operator=(test_attr const&)
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{
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std::cout << "assign" << std::endl;
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return *this;
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}
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};
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template <typename Iterator>
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struct test_parser : grammar<Iterator, std::vector<test_attr>() >
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{
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test_parser() : test_parser::base_type(start)
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{
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#ifdef ATTR_PROPAGATE
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start = char_ >> *(',' >> char_);
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#else
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start = char_[push_back(_val, _1)] >> *(',' >> char_[push_back(_val, _1)]);
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#endif
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}
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rule<Iterator, std::vector<test_attr>()> start;
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};
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int main()
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{
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typedef std::string::const_iterator iterator_type;
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typedef test_parser<iterator_type> test_parser;
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test_parser g;
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std::string str = "a,b,c,d,e";
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std::vector<test_attr> result;
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result.reserve(20);
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std::string::const_iterator iter = str.begin();
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std::string::const_iterator end = str.end();
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bool r = parse(iter, end, g, result);
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if (r && iter == end)
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{
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std::cout << "-------------------------\n";
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std::cout << "Parsing succeeded\n";
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std::cout << "\n-------------------------\n";
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}
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else
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{
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std::cout << "-------------------------\n";
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std::cout << "Parsing failed\n";
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std::cout << "-------------------------\n";
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}
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std::cout << "Bye... :-) \n\n";
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return 0;
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}
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