letter.cpp
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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/letter.hpp>
#include <boost/metaparse/is_error.hpp>
#include <boost/metaparse/start.hpp>
#include <boost/metaparse/get_result.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(letter)
{
using boost::metaparse::get_result;
using boost::metaparse::letter;
using boost::metaparse::start;
using boost::metaparse::is_error;
using boost::mpl::equal_to;
using boost::mpl::apply_wrap2;
// test_with_text
BOOST_MPL_ASSERT((
equal_to<get_result<apply_wrap2<letter, str_hello, start> >::type, char_h>
));
// test_with_number
BOOST_MPL_ASSERT((is_error<apply_wrap2<letter, str_1983, start> >));
// test_with_empty_string
BOOST_MPL_ASSERT((is_error<apply_wrap2<letter, str_, start> >));
}