remove unused symbolizer_grammar.hpp (ref #3343)
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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) 2015 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_SYMBOLIZER_GRAMMAR_HPP
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#define MAPNIK_SYMBOLIZER_GRAMMAR_HPP
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#include <mapnik/config.hpp>
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// boost
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#include <boost/spirit/include/qi.hpp>
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#include <boost/spirit/include/phoenix.hpp>
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// mapnik
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#include <mapnik/util/variant.hpp>
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#include <mapnik/symbolizer.hpp>
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#include <mapnik/symbolizer_utils.hpp>
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#include <mapnik/json/error_handler.hpp>
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#include <mapnik/json/generic_json.hpp>
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namespace mapnik { namespace json {
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namespace qi = boost::spirit::qi;
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namespace phoenix = boost::phoenix;
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namespace fusion = boost::fusion;
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namespace standard_wide = boost::spirit::standard_wide;
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using standard_wide::space_type;
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template <typename Symbolizer>
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struct json_value_visitor
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{
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json_value_visitor(Symbolizer & sym, mapnik::keys key)
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: sym_(sym), key_(key) {}
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void operator() (value_bool val) const
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{
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put<value_bool>(sym_, key_, val);
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}
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void operator() (value_integer val) const
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{
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put<value_integer>(sym_, key_, val);
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}
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void operator() (value_double val) const
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{
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put<value_double>(sym_, key_, val);
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}
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void operator() (std::string const& val) const
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{
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set_property(sym_, key_, val);
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}
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template <typename T>
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void operator() (T const& val) const
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{
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std::cerr << std::get<0>(get_meta(key_)) << ":" << val << std::endl;
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//put<T>(sym_, key_, val);
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}
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Symbolizer & sym_;
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keys key_;
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};
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template <typename T>
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struct put_property_visitor
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{
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using value_type = T;
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put_property_visitor(mapnik::keys key, value_type const& val)
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: key_(key), val_(val) {}
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template <typename Symbolizer>
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void operator() (Symbolizer & sym) const
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{
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mapnik::util::apply_visitor(json_value_visitor<Symbolizer>(sym, key_), val_);
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}
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keys key_;
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value_type const& val_;
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};
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struct put_property
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{
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using result_type = void;
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template <typename T0,typename T1, typename T2>
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result_type operator() (T0 & sym, T1 const& name, T2 const& val) const
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{
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try
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{
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mapnik::util::apply_visitor(put_property_visitor<T2>(get_key(name),val), sym);
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}
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catch (std::runtime_error const& err)
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{
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std::cerr << err.what() << std::endl;
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}
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}
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};
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template <typename Iterator, typename ErrorHandler = error_handler<Iterator>>
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struct symbolizer_grammar : qi::grammar<Iterator, space_type, symbolizer()>
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{
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using json_value_type = util::variant<value_null,value_bool,value_integer,value_double, std::string>;
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symbolizer_grammar()
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: symbolizer_grammar::base_type(sym, "symbolizer"),
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json_()
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{
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qi::lit_type lit;
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qi::double_type double_;
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qi::int_type int_;
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qi::no_skip_type no_skip;
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qi::_val_type _val;
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qi::_a_type _a;
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qi::_r1_type _r1;
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qi::_1_type _1;
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standard_wide::char_type char_;
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using phoenix::construct;
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// generic json types
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json_.value = json_.object | json_.array | json_.string_
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| json_.number
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;
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json_.pairs = json_.key_value % lit(',')
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;
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json_.key_value = (json_.string_ >> lit(':') >> json_.value)
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;
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json_.object = lit('{')
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>> *json_.pairs
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>> lit('}')
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;
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json_.array = lit('[')
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>> json_.value >> *(lit(',') >> json_.value)
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>> lit(']')
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;
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json_.number %= json_.strict_double
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| json_.int__
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| lit("true") [_val = true]
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| lit ("false") [_val = false]
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| lit("null")[_val = construct<value_null>()]
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;
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json_.unesc_char.add
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("\\\"", '\"') // quotation mark
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("\\\\", '\\') // reverse solidus
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("\\/", '/') // solidus
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("\\b", '\b') // backspace
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("\\f", '\f') // formfeed
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("\\n", '\n') // newline
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("\\r", '\r') // carrige return
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("\\t", '\t') // tab
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;
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json_.string_ %= lit('"') >> no_skip[*(json_.unesc_char | "\\u" >> json_.hex4 | (char_ - lit('"')))] >> lit('"')
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;
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sym = lit('{')
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>> lit("\"type\"") >> lit(':')
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>> (lit("\"PointSymbolizer\"")[_val = construct<point_symbolizer>()]
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lit("\"LineSymbolizer\"")[_val = construct<line_symbolizer>()]
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lit("\"PolygonSymbolizer\"")[_val = construct<polygon_symbolizer>()]
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)
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>> lit(',')
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>> lit("\"properties\"") >> lit(':')
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>> ((lit('{') >> *property(_val) >> lit('}')) | lit("null"))
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>> lit('}')
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;
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property = (json_.string_ [_a = _1] >> lit(':') >> property_value [put_property_(_r1,_a,_1)]) % lit(',')
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;
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property_value %= json_.number | json_.string_ ;
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}
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// generic JSON
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generic_json<Iterator> json_;
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// symbolizer
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qi::rule<Iterator, space_type, mapnik::symbolizer()> sym;
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qi::rule<Iterator,qi::locals<std::string>, void(mapnik::symbolizer&),space_type> property;
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qi::rule<Iterator, space_type, json_value_type()> property_value;
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phoenix::function<put_property> put_property_;
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// error
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//qi::on_error<qi::fail>(sym, error_handler(_1, _2, _3, _4));
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};
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}}
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#endif // MAPNIK_SYMBOLIZER_GRAMMAR_HPP
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