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/*=============================================================================
Copyright (c) 2001-2011 Hartmut Kaiser
Copyright (c) 2001-2011 Joel de Guzman
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/config/warning_disable.hpp>
#include <boost/detail/lightweight_test.hpp>
#include <boost/spirit/include/karma_string.hpp>
#include <boost/spirit/include/karma_numeric.hpp>
#include <boost/spirit/include/karma_directive.hpp>
#include <boost/spirit/include/karma_operator.hpp>
#include <boost/spirit/include/karma_phoenix_attributes.hpp>
#include <boost/spirit/include/phoenix_core.hpp>
#include <boost/spirit/include/phoenix_operator.hpp>
#include "test.hpp"
using namespace spirit_test;
///////////////////////////////////////////////////////////////////////////////
// special bool output policy allowing to spell false as true backwards (eurt)
struct special_bool_policy : boost::spirit::karma::bool_policies<>
{
template <typename CharEncoding, typename Tag
, typename OutputIterator>
static bool generate_false(OutputIterator& sink, bool)
{
// we want to spell the names of true and false backwards
return boost::spirit::karma::string_inserter<CharEncoding, Tag>::
call(sink, "eurt");
}
};
///////////////////////////////////////////////////////////////////////////////
// special policy allowing to use any type as a boolean
struct test_bool_data
{
explicit test_bool_data(bool b) : b(b) {}
bool b;
// we need to provide (safe) convertibility to bool
private:
struct dummy { void true_() {} };
typedef void (dummy::*safe_bool)();
public:
operator safe_bool () const { return b ? &dummy::true_ : 0; }
};
struct test_bool_policy : boost::spirit::karma::bool_policies<>
{
template <typename Inserter, typename OutputIterator, typename Policies>
static bool
call (OutputIterator& sink, test_bool_data b, Policies const& p)
{
// call the predefined inserter to do the job
return Inserter::call_n(sink, bool(b), p);
}
};
///////////////////////////////////////////////////////////////////////////////
int main()
{
using boost::spirit::karma::bool_;
using boost::spirit::karma::false_;
using boost::spirit::karma::true_;
using boost::spirit::karma::lit;
using boost::spirit::karma::lower;
using boost::spirit::karma::upper;
// testing plain bool
{
BOOST_TEST(test("false", bool_, false));
BOOST_TEST(test("true", bool_, true));
BOOST_TEST(test("false", false_, false));
BOOST_TEST(test("true", true_, true));
BOOST_TEST(test("false", bool_(false)));
BOOST_TEST(test("true", bool_(true)));
BOOST_TEST(test("false", bool_(false), false));
BOOST_TEST(test("true", bool_(true), true));
BOOST_TEST(!test("", bool_(false), true));
BOOST_TEST(!test("", bool_(true), false));
BOOST_TEST(test("false", lit(false)));
BOOST_TEST(test("true", lit(true)));
}
// test optional attributes
{
boost::optional<bool> optbool;
BOOST_TEST(!test("", bool_, optbool));
BOOST_TEST(test("", -bool_, optbool));
optbool = false;
BOOST_TEST(test("false", bool_, optbool));
BOOST_TEST(test("false", -bool_, optbool));
optbool = true;
BOOST_TEST(test("true", bool_, optbool));
BOOST_TEST(test("true", -bool_, optbool));
}
// we support Phoenix attributes only starting with V2.2
#if SPIRIT_VERSION >= 0x2020
// test Phoenix expression attributes (requires to include
// karma_phoenix_attributes.hpp)
{
namespace phoenix = boost::phoenix;
BOOST_TEST(test("true", bool_, phoenix::val(true)));
bool b = false;
BOOST_TEST(test("false", bool_, phoenix::ref(b)));
BOOST_TEST(test("true", bool_, !phoenix::ref(b)));
}
#endif
{
BOOST_TEST(test("false", lower[bool_], false));
BOOST_TEST(test("true", lower[bool_], true));
BOOST_TEST(test("false", lower[bool_(false)]));
BOOST_TEST(test("true", lower[bool_(true)]));
BOOST_TEST(test("false", lower[bool_(false)], false));
BOOST_TEST(test("true", lower[bool_(true)], true));
BOOST_TEST(!test("", lower[bool_(false)], true));
BOOST_TEST(!test("", lower[bool_(true)], false));
BOOST_TEST(test("false", lower[lit(false)]));
BOOST_TEST(test("true", lower[lit(true)]));
}
{
BOOST_TEST(test("FALSE", upper[bool_], false));
BOOST_TEST(test("TRUE", upper[bool_], true));
BOOST_TEST(test("FALSE", upper[bool_(false)]));
BOOST_TEST(test("TRUE", upper[bool_(true)]));
BOOST_TEST(test("FALSE", upper[bool_(false)], false));
BOOST_TEST(test("TRUE", upper[bool_(true)], true));
BOOST_TEST(!test("", upper[bool_(false)], true));
BOOST_TEST(!test("", upper[bool_(true)], false));
BOOST_TEST(test("FALSE", upper[lit(false)]));
BOOST_TEST(test("TRUE", upper[lit(true)]));
}
{
typedef boost::spirit::karma::bool_generator<bool, special_bool_policy>
backwards_bool_type;
backwards_bool_type const backwards_bool = backwards_bool_type();
BOOST_TEST(test("eurt", backwards_bool, false));
BOOST_TEST(test("true", backwards_bool, true));
BOOST_TEST(test("eurt", backwards_bool(false)));
BOOST_TEST(test("true", backwards_bool(true)));
BOOST_TEST(test("eurt", backwards_bool(false), false));
BOOST_TEST(test("true", backwards_bool(true), true));
BOOST_TEST(!test("", backwards_bool(false), true));
BOOST_TEST(!test("", backwards_bool(true), false));
}
{
typedef boost::spirit::karma::bool_generator<
test_bool_data, test_bool_policy> test_bool_type;
test_bool_type const test_bool = test_bool_type();
test_bool_data const test_false = test_bool_data(false);
test_bool_data const test_true = test_bool_data(true);
BOOST_TEST(test("false", test_bool, test_false));
BOOST_TEST(test("true", test_bool, test_true));
BOOST_TEST(test("false", test_bool(test_false)));
BOOST_TEST(test("true", test_bool(test_true)));
BOOST_TEST(test("false", test_bool(test_false), test_false));
BOOST_TEST(test("true", test_bool(test_true), test_true));
BOOST_TEST(!test("", test_bool(test_false), test_true));
BOOST_TEST(!test("", test_bool(test_true), test_false));
}
return boost::report_errors();
}
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