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