/***************************************************************************** * * This file is part of Mapnik (c++ mapping toolkit) * * Copyright (C) 2017 Artem Pavlenko * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * *****************************************************************************/ #ifndef MAPNIK_PARSE_HEX_HPP #define MAPNIK_PARSE_HEX_HPP #pragma GCC diagnostic push #include <mapnik/warning_ignore.hpp> #include <boost/spirit/home/x3.hpp> #pragma GCC diagnostic pop namespace mapnik { namespace util { template <typename Out> bool parse_hex(std::string const& input, Out & output) { using boost::spirit::x3::lit; auto itr = input.begin(); auto end = input.end(); using hex2 = boost::spirit::x3::uint_parser< unsigned, 16, 2, 2 >; return boost::spirit::x3::parse(itr, end, -(lit("\\x") | lit("0x")) > *hex2(), output); } }} #endif // MAPNIK_PARSE_HEX_HPP