/usr/include/mapnik/json/geometry_grammar.hpp is in libmapnik-dev 2.2.0+ds1-6build2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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*
* This file is part of Mapnik (c++ mapping toolkit)
*
* Copyright (C) 2012 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_GEOMETRY_GRAMMAR_HPP
#define MAPNIK_GEOMETRY_GRAMMAR_HPP
// mapnik
#include <mapnik/geometry.hpp> // for geometry_type
#include <mapnik/vertex.hpp> // for CommandType
// spirit::qi
#include <boost/spirit/include/qi.hpp>
#include <boost/spirit/include/phoenix_function.hpp>
namespace mapnik { namespace json {
namespace qi = boost::spirit::qi;
namespace standard_wide = boost::spirit::standard_wide;
using standard_wide::space_type;
struct push_vertex
{
template <typename T0,typename T1, typename T2, typename T3>
struct result
{
typedef void type;
};
template <typename T0,typename T1, typename T2, typename T3>
void operator() (T0 c, T1 path, T2 x, T3 y) const
{
BOOST_ASSERT( path!=0 );
path->push_vertex(x,y,c);
}
};
struct close_path
{
template <typename T>
struct result
{
typedef void type;
};
template <typename T>
void operator() (T path) const
{
BOOST_ASSERT( path!=0 );
path->close_path();
}
};
struct cleanup
{
template <typename T0>
struct result
{
typedef void type;
};
template <typename T0>
void operator() (T0 & path) const
{
if (path) delete path, path=0;
}
};
struct where_message
{
template <typename T0,typename T1,typename T2>
struct result
{
typedef std::string type;
};
template <typename Iterator>
std::string operator() (Iterator first, Iterator last, std::size_t size) const
{
std::string str(first, last);
if (str.length() > size)
return str.substr(0, size) + "..." ;
return str;
}
};
template <typename Iterator>
struct geometry_grammar :
qi::grammar<Iterator,qi::locals<int>, void(boost::ptr_vector<mapnik::geometry_type>& )
, space_type>
{
geometry_grammar();
qi::rule<Iterator, qi::locals<int>, void(boost::ptr_vector<mapnik::geometry_type>& ),space_type> geometry;
qi::symbols<char, int> geometry_dispatch;
qi::rule<Iterator,void(CommandType,geometry_type*),space_type> point;
qi::rule<Iterator,qi::locals<CommandType>,void(geometry_type*),space_type> points;
qi::rule<Iterator,void(boost::ptr_vector<mapnik::geometry_type>&,int),space_type> coordinates;
//
qi::rule<Iterator,qi::locals<geometry_type*>,
void(boost::ptr_vector<mapnik::geometry_type>& ),space_type> point_coordinates;
qi::rule<Iterator,qi::locals<geometry_type*>,
void(boost::ptr_vector<mapnik::geometry_type>& ),space_type> linestring_coordinates;
qi::rule<Iterator,qi::locals<geometry_type*>,
void(boost::ptr_vector<mapnik::geometry_type>& ),space_type> polygon_coordinates;
qi::rule<Iterator,void(boost::ptr_vector<mapnik::geometry_type>& ),space_type> multipoint_coordinates;
qi::rule<Iterator,void(boost::ptr_vector<mapnik::geometry_type>& ),space_type> multilinestring_coordinates;
qi::rule<Iterator,void(boost::ptr_vector<mapnik::geometry_type>& ),space_type> multipolygon_coordinates;
qi::rule<Iterator,void(boost::ptr_vector<mapnik::geometry_type>& ),space_type> geometry_collection;
// Nabialek trick //////////////////////////////////////
//typedef typename qi::rule<Iterator,void(FeatureType &), space_type> dispatch_rule;
//qi::rule<Iterator,qi::locals<dispatch_rule*>, void(FeatureType&),space_type> geometry;
//qi::symbols<char, dispatch_rule*> geometry_dispatch;
////////////////////////////////////////////////////////
boost::phoenix::function<push_vertex> push_vertex_;
boost::phoenix::function<close_path> close_path_;
boost::phoenix::function<cleanup> cleanup_;
boost::phoenix::function<where_message> where_message_;
};
}}
#endif // MAPNIK_GEOMETRY_GRAMMAR_HPP
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