45 lines
1.5 KiB
C++
45 lines
1.5 KiB
C++
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/*****************************************************************************
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*
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* This file is part of Mapnik (c++ mapping toolkit)
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*
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* Copyright (C) 2016 Artem Pavlenko
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*****************************************************************************/
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#ifndef MAPNIK_PARSE_HEX_HPP
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#define MAPNIK_PARSE_HEX_HPP
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#include <boost/spirit/include/qi.hpp>
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#include <boost/spirit/include/qi_char_.hpp>
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namespace mapnik { namespace util {
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template <typename Out>
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bool parse_hex(std::string const& input, Out & output)
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{
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boost::spirit::qi::lit_type lit;
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auto itr = input.begin();
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auto end = input.end();
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using hex2 = boost::spirit::qi::uint_parser< unsigned, 16, 2, 2 >;
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return boost::spirit::qi::parse(itr, end, -(lit("\\x") | lit("0x")) > *hex2(), output);
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}
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}}
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#endif // MAPNIK_PARSE_HEX_HPP
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