| 1 | // Copyright (c) 2001-2010 Hartmut Kaiser |
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| 2 | // Copyright (c) 2010 Head Geek |
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| 3 | // |
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| 4 | // Distributed under the Boost Software License, Version 1.0. (See accompanying |
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| 5 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
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| 6 | |
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| 7 | #include <iostream> |
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| 8 | #include <boost/spirit/include/qi.hpp> |
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| 9 | |
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| 10 | #include <boost/core/lightweight_test.hpp> |
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| 11 | |
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| 12 | namespace qi = boost::spirit::qi; |
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| 13 | using qi::omit; |
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| 14 | using qi::repeat; |
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| 15 | using std::cout; |
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| 16 | using std::endl; |
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| 17 | |
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| 18 | typedef qi::rule<std::string::const_iterator, std::string()> strrule_type; |
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| 19 | |
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| 20 | void test(const std::string input, strrule_type rule, std::string result) |
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| 21 | { |
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| 22 | std::string target; |
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| 23 | std::string::const_iterator i = input.begin(), ie = input.end(); |
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| 24 | |
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| 25 | BOOST_TEST(qi::parse(i, ie, rule, target) && target == result); |
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| 26 | } |
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| 27 | |
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| 28 | int main() |
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| 29 | { |
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| 30 | strrule_type obsolete_year = |
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| 31 | omit[-qi::char_(" \t" )] >> |
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| 32 | repeat(2)[qi::digit] >> |
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| 33 | omit[-qi::char_(" \t" )]; |
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| 34 | strrule_type correct_year = repeat(4)[qi::digit]; |
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| 35 | |
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| 36 | test(input: "1776" , rule: qi::hold[correct_year] | repeat(2)[qi::digit], result: "1776" ); |
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| 37 | test(input: "76" , rule: obsolete_year, result: "76" ); |
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| 38 | test(input: "76" , rule: qi::hold[obsolete_year] | correct_year, result: "76" ); |
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| 39 | test(input: " 76" , rule: qi::hold[correct_year] | obsolete_year, result: "76" ); |
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| 40 | test(input: "76" , rule: qi::hold[correct_year] | obsolete_year, result: "76" ); |
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| 41 | test(input: "76" , rule: qi::hold[correct_year] | repeat(2)[qi::digit], result: "76" ); |
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| 42 | |
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| 43 | return boost::report_errors(); |
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| 44 | } |
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| 45 | |
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| 46 | |
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