spaces.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/spaces.hpp>
#include <boost/metaparse/is_error.hpp>
#include <boost/metaparse/start.hpp>
#include <boost/metaparse/get_remaining.hpp>
#include "common.hpp"
#include <boost/mpl/equal_to.hpp>
#include <boost/mpl/apply_wrap.hpp>
#include <boost/mpl/not.hpp>
#include <boost/mpl/equal.hpp>
#include <boost/mpl/assert.hpp>
#include "test_case.hpp"
namespace
{
using boost::mpl::list_c;
typedef list_c<char, 'e', 'l', 'l', 'o'> str_ello;
typedef
list_c<char, ' ', '\t', '\n', '\r', 'e', 'l', 'l', 'o'>
str_____ello;
}
BOOST_METAPARSE_TEST_CASE(spaces)
{
using boost::metaparse::is_error;
using boost::metaparse::spaces;
using boost::metaparse::start;
using boost::metaparse::get_remaining;
using boost::mpl::apply_wrap2;
using boost::mpl::not_;
using boost::mpl::equal;
// test_reject_no_space
BOOST_MPL_ASSERT((
is_error<apply_wrap2<spaces, str_hello, start> >
));
// test_accept_one_space
BOOST_MPL_ASSERT((
not_<is_error<apply_wrap2<spaces, str__ello, start> > >
));
// test_accept_only_space
BOOST_MPL_ASSERT((
equal<get_remaining<apply_wrap2<spaces, str__ello, start> >::type, str_ello>
));
// test_accept_all_spaces
BOOST_MPL_ASSERT((not_<is_error<apply_wrap2<spaces, str_____ello,start> > >));
// test_consume_all_spaces
BOOST_MPL_ASSERT((
equal<
get_remaining<apply_wrap2<spaces, str_____ello, start> >::type,
str_ello
>
));
}