mapnik/boost/property_tree/json_parser.hpp
2006-10-03 09:06:13 +00:00

76 lines
2.4 KiB
C++

// ----------------------------------------------------------------------------
// Copyright (C) 2002-2005 Marcin Kalicinski
//
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
// For more information, see www.boost.org
// ----------------------------------------------------------------------------
#ifndef BOOST_PROPERTY_TREE_JSON_PARSER_HPP_INCLUDED
#define BOOST_PROPERTY_TREE_JSON_PARSER_HPP_INCLUDED
#include <boost/property_tree/ptree.hpp>
#include <boost/property_tree/detail/json_parser_read.hpp>
#include <boost/property_tree/detail/json_parser_write.hpp>
#include <boost/property_tree/detail/json_parser_error.hpp>
#include <fstream>
#include <string>
#include <locale>
namespace boost { namespace property_tree { namespace json_parser
{
// Read json from stream
template<class Ptree>
void read_json(std::basic_istream<typename Ptree::char_type> &stream,
Ptree &pt)
{
read_json_internal(stream, pt, std::string());
}
// Read json from file
template<class Ptree>
void read_json(const std::string &filename,
Ptree &pt,
const std::locale &loc = std::locale())
{
std::basic_ifstream<typename Ptree::char_type> stream(filename.c_str());
if (!stream)
throw json_parser_error("cannot open file", filename, 0);
stream.imbue(loc);
read_json_internal(stream, pt, filename);
}
// Write json to stream
template<class Ptree>
void write_json(std::basic_ostream<typename Ptree::char_type> &stream,
const Ptree &pt)
{
write_json_internal(stream, pt, std::string());
}
// Write json to file
template<class Ptree>
void write_json(const std::string &filename,
const Ptree &pt,
const std::locale &loc = std::locale())
{
std::basic_ofstream<typename Ptree::char_type> stream(filename.c_str());
if (!stream)
throw json_parser_error("cannot open file", filename, 0);
stream.imbue(loc);
write_json_internal(stream, pt, filename);
}
} } }
namespace boost { namespace property_tree
{
using json_parser::read_json;
using json_parser::write_json;
using json_parser::json_parser_error;
} }
#endif