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- // Copyright (c) 2001-2010 Hartmut Kaiser
- // Copyright (c) 2010 Head Geek
- //
- // Distributed under the Boost Software License, Version 1.0. (See accompanying
- // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
- #include <iostream>
- #include <boost/detail/lightweight_test.hpp>
- #include <boost/spirit/include/qi.hpp>
-
- namespace qi = boost::spirit::qi;
- using qi::omit;
- using qi::repeat;
- using std::cout;
- using std::endl;
-
- typedef qi::rule<std::string::const_iterator, std::string()> strrule_type;
-
- void test(const std::string input, strrule_type rule, std::string result)
- {
- std::string target;
- std::string::const_iterator i = input.begin(), ie = input.end();
-
- BOOST_TEST(qi::parse(i, ie, rule, target) && target == result);
- }
-
- int main()
- {
- strrule_type obsolete_year =
- omit[-qi::char_(" \t")] >>
- repeat(2)[qi::digit] >>
- omit[-qi::char_(" \t")];
- strrule_type correct_year = repeat(4)[qi::digit];
-
- test("1776", qi::hold[correct_year] | repeat(2)[qi::digit], "1776");
- test("76", obsolete_year, "76");
- test("76", qi::hold[obsolete_year] | correct_year, "76");
- test(" 76", qi::hold[correct_year] | obsolete_year, "76");
- test("76", qi::hold[correct_year] | obsolete_year, "76");
- test("76", qi::hold[correct_year] | repeat(2)[qi::digit], "76");
- return boost::report_errors();
- }
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