spirit/test/x3/bool.hpp
Thomas Bernard fec70d409c Merge branch 'x3-devel' into feature/x3_devlop_merge
Conflicts:
	include/boost/spirit/home/x3/extensions/repeat.hpp
	test/x3/Jamfile

Add support for no_case to the bool parsers
2014-11-01 23:43:02 +01:00

42 lines
1.5 KiB
C++

/*=============================================================================
Copyright (c) 2001-2011 Hartmut Kaiser
Copyright (c) 2011 Bryce Lelbach
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)
==============================================================================*/
#if !defined(BOOST_SPIRIT_TEST_QI_BOOL)
#define BOOST_SPIRIT_TEST_QI_BOOL
#include <boost/detail/lightweight_test.hpp>
#include <boost/spirit/home/x3.hpp>
#include "test.hpp"
///////////////////////////////////////////////////////////////////////////////
struct backwards_bool_policies : boost::spirit::x3::bool_policies<>
{
// we want to interpret a 'true' spelled backwards as 'false'
template <typename Iterator, typename Attribute, typename CaseCompare>
static bool
parse_false(Iterator& first, Iterator const& last, Attribute& attr, CaseCompare const& case_compare)
{
namespace spirit = boost::spirit;
namespace x3 = boost::spirit::x3;
if (x3::detail::string_parse("eurt", first, last, x3::unused, case_compare))
{
x3::traits::move_to(false, attr); // result is false
return true;
}
return false;
}
};
///////////////////////////////////////////////////////////////////////////////
struct test_bool_type
{
test_bool_type(bool b = false) : b(b) {} // provide conversion
bool b;
};
#endif