string.cpp
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// Copyright Abel Sinkovics (abel@sinkovics.hu) 2012.
// 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)
#define BOOST_TEST_MODULE string
#define BOOST_METAPARSE_LIMIT_STRING_SIZE 64
#include <boost/metaparse/string.hpp>
#include <boost/mpl/equal.hpp>
#include <boost/mpl/equal_to.hpp>
#include <boost/mpl/assert.hpp>
#include <boost/mpl/at.hpp>
#include <boost/mpl/char.hpp>
#include <boost/mpl/int.hpp>
#include <boost/mpl/size.hpp>
#include <boost/mpl/back.hpp>
#include <boost/mpl/begin_end.hpp>
#include <boost/mpl/deref.hpp>
#include <boost/mpl/advance.hpp>
#include <boost/mpl/next.hpp>
#include <boost/mpl/prior.hpp>
#include <boost/mpl/distance.hpp>
#include <boost/mpl/clear.hpp>
#include <boost/mpl/empty.hpp>
#include <boost/mpl/front.hpp>
#include <boost/mpl/is_sequence.hpp>
#include <boost/mpl/pop_front.hpp>
#include <boost/mpl/pop_back.hpp>
#include <boost/mpl/push_front.hpp>
#include <boost/mpl/push_back.hpp>
#include <boost/mpl/string.hpp>
#include <boost/mpl/assert.hpp>
#include <boost/test/unit_test.hpp>
#include <string>
BOOST_AUTO_TEST_CASE(test_string)
{
using boost::mpl::equal;
using boost::mpl::equal_to;
using boost::mpl::char_;
using boost::mpl::int_;
using boost::mpl::at;
using boost::mpl::at_c;
using boost::mpl::size;
using boost::mpl::back;
using boost::mpl::deref;
using boost::mpl::advance;
using boost::mpl::next;
using boost::mpl::prior;
using boost::mpl::distance;
using boost::mpl::clear;
using boost::mpl::empty;
using boost::mpl::front;
using boost::mpl::is_sequence;
using boost::mpl::pop_front;
using boost::mpl::pop_back;
using boost::mpl::begin;
using boost::mpl::end;
using boost::mpl::c_str;
using boost::mpl::push_front;
using boost::mpl::push_back;
using namespace boost;
// string type
///////////////////////
typedef metaparse::string<'H','e','l','l','o'> hello;
typedef metaparse::string<> empty_string;
typedef begin<hello>::type begin_hello;
typedef end<hello>::type end_hello;
// test_value_of_empty_string
BOOST_REQUIRE_EQUAL(std::string(), c_str<empty_string>::type::value);
// test_value
BOOST_REQUIRE_EQUAL(std::string("Hello"), c_str<hello>::type::value);
// equal_to
BOOST_MPL_ASSERT((equal_to<hello, hello>));
BOOST_MPL_ASSERT_NOT((equal_to<hello, empty_string>));
// at
BOOST_MPL_ASSERT((equal_to<char_<'e'>, at<hello, int_<1> >::type>));
BOOST_MPL_ASSERT((equal_to<char_<'e'>, at_c<hello, 1>::type>));
// size
BOOST_MPL_ASSERT((equal_to<int_<5>, size<hello>::type>));
// is_sequence
BOOST_MPL_ASSERT((is_sequence<hello>));
// front
BOOST_MPL_ASSERT((equal_to<char_<'H'>, front<hello>::type>));
// push_front
BOOST_MPL_ASSERT((
equal_to<
metaparse::string<'x','H','e','l','l','o'>,
push_front<hello, char_<'x'> >::type
>
));
// back
BOOST_MPL_ASSERT((equal_to<char_<'o'>, back<hello>::type>));
// push_back
BOOST_MPL_ASSERT((
equal_to<
metaparse::string<'H','e','l','l','o', 'x'>,
push_back<hello, char_<'x'> >::type
>
));
// clear
BOOST_MPL_ASSERT((equal_to<empty_string, clear<hello>::type>));
// empty
BOOST_MPL_ASSERT_NOT((empty<hello>::type));
BOOST_MPL_ASSERT((empty<empty_string>::type));
// string_iterator
BOOST_MPL_ASSERT((equal_to<begin_hello, begin_hello>));
BOOST_MPL_ASSERT_NOT((equal_to<begin_hello, end_hello>));
BOOST_MPL_ASSERT((
equal_to<begin<empty_string>::type, end<empty_string>::type>
));
BOOST_MPL_ASSERT((equal_to<char_<'H'>, deref<begin_hello>::type>));
BOOST_MPL_ASSERT((equal_to<end_hello, advance<begin_hello, int_<5> >::type>));
BOOST_MPL_ASSERT((
equal_to<char_<'e'>, deref<next<begin_hello>::type>::type>
));
BOOST_MPL_ASSERT((equal_to<char_<'o'>, deref<prior<end_hello>::type>::type>));
BOOST_MPL_ASSERT((equal_to<int_<5>, distance<begin_hello, end_hello>::type>));
// pop_front
BOOST_MPL_ASSERT((
equal_to<metaparse::string<'e','l','l','o'>, pop_front<hello>::type>
));
// pop_back
BOOST_MPL_ASSERT((
equal_to<metaparse::string<'H','e','l','l'>, pop_back<hello>::type>
));
#if BOOST_METAPARSE_STD >= 2011
// BOOST_METAPARSE_STRING macro
///////////////////////
// test_empty_string
BOOST_MPL_ASSERT((equal<BOOST_METAPARSE_STRING(""), empty_string>));
// test_string_creation
BOOST_MPL_ASSERT((equal<BOOST_METAPARSE_STRING("Hello"), hello>));
#endif
}