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c191e196c0
Spirit rules are just placeholders. They are cheap to construct and by doing this static initialization order fiasco problem is effectively avoided. Also had to fix name clash between geojson and generic json parsers.
66 lines
2.6 KiB
C++
66 lines
2.6 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) 2017 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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#include <mapnik/json/parse_feature.hpp>
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#include <mapnik/json/json_grammar_config.hpp>
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#include <mapnik/json/feature_grammar_x3.hpp>
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namespace mapnik { namespace json {
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template <typename Iterator>
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void parse_feature(Iterator start, Iterator end, feature_impl& feature, mapnik::transcoder const& tr)
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{
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namespace x3 = boost::spirit::x3;
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using space_type = mapnik::json::grammar::space_type;
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#if BOOST_VERSION >= 106700
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auto grammar = x3::with<mapnik::json::grammar::transcoder_tag>(tr)
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[x3::with<mapnik::json::grammar::feature_tag>(feature)
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[ mapnik::json::grammar::feature_rule ]];
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#else
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auto grammar = x3::with<mapnik::json::grammar::transcoder_tag>(std::ref(tr))
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[x3::with<mapnik::json::grammar::feature_tag>(std::ref(feature))
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[ mapnik::json::grammar::feature_rule ]];
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#endif
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if (!x3::phrase_parse(start, end, grammar, space_type()))
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{
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throw std::runtime_error("Can't parser GeoJSON Feature");
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}
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}
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template <typename Iterator>
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void parse_geometry(Iterator start, Iterator end, feature_impl& feature)
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{
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namespace x3 = boost::spirit::x3;
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using space_type = mapnik::json::grammar::space_type;
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auto grammar = mapnik::json::grammar::geometry_rule;
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if (!x3::phrase_parse(start, end, grammar, space_type(), feature.get_geometry()))
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{
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throw std::runtime_error("Can't parser GeoJSON Geometry");
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}
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}
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using iterator_type = mapnik::json::grammar::iterator_type;
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template void parse_feature<iterator_type>(iterator_type,iterator_type, feature_impl& feature, mapnik::transcoder const& tr);
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template void parse_geometry<iterator_type>(iterator_type,iterator_type, feature_impl& feature);
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}}
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