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- // Copyright Abel Sinkovics (abel@sinkovics.hu) 2010.
- // 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 <boost/metaparse/nth_of.hpp>
- #include <boost/metaparse/nth_of_c.hpp>
- #include <boost/metaparse/is_error.hpp>
- #include <boost/metaparse/get_result.hpp>
- #include <boost/metaparse/start.hpp>
- #include "common.hpp"
- #include <boost/mpl/equal_to.hpp>
- #include <boost/mpl/apply_wrap.hpp>
- #include <boost/mpl/assert.hpp>
- #include "test_case.hpp"
- BOOST_METAPARSE_TEST_CASE(nth_of)
- {
- using boost::metaparse::get_result;
- using boost::metaparse::nth_of_c;
- using boost::metaparse::start;
- using boost::metaparse::nth_of;
- using boost::metaparse::is_error;
-
- using boost::mpl::equal_to;
- using boost::mpl::apply_wrap2;
- namespace mpl = boost::mpl;
- namespace mp = boost::metaparse;
- // test_first_of_one
- BOOST_MPL_ASSERT((
- equal_to<
- get_result<apply_wrap2<nth_of_c<0, lit_h>, str_hello, start> >::type,
- char_h
- >
- ));
- // test_first_of_two
- BOOST_MPL_ASSERT((
- equal_to<
- get_result<
- apply_wrap2<nth_of_c<0, lit_h, lit_e>, str_hello, start>
- >::type,
- char_h
- >
- ));
- // test_second_of_two
- BOOST_MPL_ASSERT((
- equal_to<
- get_result<
- apply_wrap2<nth_of<int1, lit_h, lit_e>, str_hello, start>
- >::type,
- char_e
- >
- ));
- // test_nothing
- BOOST_MPL_ASSERT((
- is_error<apply_wrap2<nth_of_c<1, lit_x, lit_e>, str_hello, start> >
- ));
-
- // test_first_of_none
- BOOST_MPL_ASSERT((
- is_error<apply_wrap2<nth_of_c<0>, str_hello, start> >
- ));
- // test_n_is_less_than_zero
- BOOST_MPL_ASSERT((
- is_error<apply_wrap2<nth_of_c<-1, lit_h, lit_e>, str_hello, start> >
- ));
- // test_n_is_greater_than_the_number_of_parsers
- BOOST_MPL_ASSERT((
- is_error<apply_wrap2<nth_of_c<2, lit_h, lit_e>, str_hello, start> >
- ));
- // test_error_before_the_nth
- BOOST_MPL_ASSERT((
- is_error<apply_wrap2<nth_of_c<1, lit_x, lit_e, lit_l>, str_hello, start> >
- ));
- // test_error_at_the_nth
- BOOST_MPL_ASSERT((
- is_error<apply_wrap2<nth_of_c<1, lit_h, lit_x, lit_l>, str_hello, start> >
- ));
- // test_error_after_the_nth
- BOOST_MPL_ASSERT((
- is_error<apply_wrap2<nth_of_c<1, lit_h, lit_e, lit_x>, str_hello, start> >
- ));
- }
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