/usr/include/mapnik/json/stringifier.hpp is in libmapnik-dev 3.0.12+ds-3.
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) 2016 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_JSON_STRINGIFIER_HPP
#define MAPNIK_JSON_STRINGIFIER_HPP
// mapnik
#include <mapnik/json/generic_json.hpp>
#include <mapnik/util/conversions.hpp>
#include <mapnik/util/variant.hpp>
// stl
#include <string>
namespace mapnik { namespace json {
struct stringifier
{
std::string operator()(std::string const& val) const
{
return "\"" + val + "\"";
}
std::string operator()(value_null) const
{
return "null";
}
std::string operator()(value_bool val) const
{
return val ? "true" : "false";
}
std::string operator()(value_integer val) const
{
std::string str;
util::to_string(str, val);
return str;
}
std::string operator()(value_double val) const
{
std::string str;
util::to_string(str, val);
return str;
}
std::string operator()(std::vector<mapnik::json::json_value> const& array) const
{
std::string str = "[";
bool first = true;
for (auto const& val : array)
{
if (first) first = false;
else str += ",";
str += mapnik::util::apply_visitor(*this, val);
}
str += "]";
return str;
}
std::string operator()(std::vector<std::pair<std::string, mapnik::json::json_value>> const& object) const
{
std::string str = "{";
bool first = true;
for (auto const& kv : object)
{
if (first) first = false;
else str += ",";
str += "\"" + kv.first + "\"";
str += ":";
str += mapnik::util::apply_visitor(*this, kv.second);
}
str += "}";
return str;
}
};
}}
#endif // MAPNIK_JSON_STRINGIFIER_HPP
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