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Diffstat (limited to '')
-rw-r--r-- | src/utils/bool_translator.hpp | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/src/utils/bool_translator.hpp b/src/utils/bool_translator.hpp new file mode 100644 index 00000000..dad43f12 --- /dev/null +++ b/src/utils/bool_translator.hpp @@ -0,0 +1,71 @@ +/* + * UltraStar Deluxe - Karaoke Game + * + * UltraStar Deluxe is the legal property of its developers, whose names + * are too numerous to list here. Please refer to the COPYRIGHT + * file distributed with this source distribution. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + * + */ + +#ifndef BOOL_TRANSLATOR_HPP +#define BOOL_TRANSLATOR_HPP + +#include <boost/algorithm/string/predicate.hpp> + +namespace usdx +{ + struct BoolTranslator + { + typedef std::string internal_type; + typedef bool external_type; + + boost::optional<external_type> get_value(const internal_type& str) + { + if (!str.empty()) + { + if (boost::algorithm::iequals(str, "true") + || boost::algorithm::iequals(str, "yes") + || str == "1") + return boost::optional<external_type>(true); + else + return boost::optional<external_type>(false); + } + else + return boost::optional<external_type>(boost::none); + } + + boost::optional<internal_type> put_value(const external_type& b) + { + return boost::optional<internal_type>(b ? "true" : "false"); + } + }; +}; + +namespace boost { + namespace property_tree { + + template<typename Ch, typename Traits, typename Alloc> + struct translator_between<std::basic_string< Ch, Traits, Alloc >, bool> + { + typedef usdx::BoolTranslator type; + }; + + }; +}; + +#endif |