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48 lines
1.6 KiB
C++
48 lines
1.6 KiB
C++
/*****************************************************************************
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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) 2021 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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// mapnik
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#include <mapnik/wkt/wkt_factory.hpp>
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#include <mapnik/wkt/wkt_grammar_x3.hpp>
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namespace mapnik {
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bool from_wkt(std::string const& wkt, mapnik::geometry::geometry<double>& geom)
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{
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using namespace boost::spirit;
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x3::ascii::space_type space;
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std::string::const_iterator itr = wkt.begin();
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std::string::const_iterator end = wkt.end();
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bool result;
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try
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{
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result = x3::phrase_parse(itr, end, grammar::wkt, space, geom);
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}
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catch (x3::expectation_failure<std::string::const_iterator> const& ex)
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{
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return false;
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}
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return result && itr == end;
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}
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} // namespace mapnik
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