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- //
- // Copyright (c) 2004 Joao Abecasis
- //
- // Use, modification and distribution is subject to 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 <boost/spirit/include/classic_core.hpp>
- #include <boost/detail/lightweight_test.hpp>
- using namespace BOOST_SPIRIT_CLASSIC_NS;
- void shortest_alternative_parser_test()
- {
- typedef
- shortest_alternative<
- shortest_alternative<
- shortest_alternative<
- strlit<>,
- strlit<> >,
- strlit<> >,
- strlit<> >
- parser_t;
- parser_t short_rule =
- shortest_d[
- str_p("a")
- | str_p("aa")
- | str_p("aaa")
- | str_p("aaaa")
- ];
- BOOST_TEST(parse("a", short_rule).full);
- BOOST_TEST(parse("aa", short_rule).length == 1);
- BOOST_TEST(parse("aaa", short_rule).length == 1);
- BOOST_TEST(parse("aaaa", short_rule).length == 1);
- short_rule =
- shortest_d[
- str_p("d")
- | str_p("cd")
- | str_p("bcd")
- | str_p("abcd")
- ];
- BOOST_TEST(parse("d", short_rule).full);
- BOOST_TEST(parse("cd", short_rule).full);
- BOOST_TEST(parse("bcd", short_rule).full);
- BOOST_TEST(parse("abcd", short_rule).full);
- }
- int
- main()
- {
- shortest_alternative_parser_test();
- return boost::report_errors();
- }
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