1 // Copyright (c) 2001-2010 Hartmut Kaiser 2 // Copyright (c) 2011 Laurent Gomila 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/config/warning_disable.hpp> 8 #include <boost/detail/lightweight_test.hpp> 9 10 #include <boost/spirit/include/qi.hpp> 11 #include <boost/spirit/include/phoenix_operator.hpp> 12 #include <boost/spirit/include/support_multi_pass.hpp> 13 #include <sstream> 14 #include <iostream> 15 #include <iterator> 16 #include <string> 17 18 using namespace boost::spirit; 19 using namespace boost; 20 main()21int main() 22 { 23 { 24 std::string input("5x"); 25 std::istringstream iss(input); 26 27 typedef std::istreambuf_iterator<char> base_iterator_type; 28 typedef multi_pass<base_iterator_type> iterator_type; 29 30 iterator_type first = make_default_multi_pass(base_iterator_type(iss)); 31 iterator_type last = make_default_multi_pass(base_iterator_type()); 32 33 std::ostringstream oss; 34 35 qi::rule<iterator_type> r = qi::int_ > qi::int_; 36 qi::on_error<qi::fail>(r, phoenix::ref(oss) << phoenix::val("error")); 37 38 BOOST_TEST(!qi::parse(first, last, r)); 39 BOOST_TEST(oss.str() == "error"); 40 } 41 42 { 43 std::string input("5x"); 44 std::istringstream iss(input); 45 46 typedef std::istreambuf_iterator<char> base_iterator_type; 47 typedef multi_pass<base_iterator_type> iterator_type; 48 49 iterator_type first = make_default_multi_pass(base_iterator_type(iss)); 50 iterator_type last = make_default_multi_pass(base_iterator_type()); 51 52 std::ostringstream oss; 53 54 qi::rule<iterator_type> r1 = qi::int_ > qi::int_; 55 qi::rule<iterator_type> r2 = qi::int_ > qi::char_; 56 qi::on_error<qi::fail>(r1, phoenix::ref(oss) << phoenix::val("error in r1")); 57 qi::on_error<qi::fail>(r2, phoenix::ref(oss) << phoenix::val("error in r2")); 58 59 BOOST_TEST(qi::parse(first, last, r1 | r2)); 60 BOOST_TEST(oss.str() == "error in r1"); 61 } 62 63 return boost::report_errors(); 64 } 65 66