mapnik/property_tree/detail/file_parser_error.hpp

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2006-10-03 10:52:24 +02:00
// ----------------------------------------------------------------------------
// 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_DETAIL_FILE_PARSER_ERROR_HPP_INCLUDED
#define BOOST_PROPERTY_TREE_DETAIL_FILE_PARSER_ERROR_HPP_INCLUDED
#include <boost/property_tree/ptree.hpp>
#include <string>
namespace boost { namespace property_tree
{
//! File parse error
class file_parser_error: public ptree_error
{
public:
///////////////////////////////////////////////////////////////////////
// Construction & destruction
// Construct error
file_parser_error(const std::string &message,
const std::string &filename,
unsigned long line):
ptree_error(format_what(message, filename, line)),
m_message(message), m_filename(filename), m_line(line)
{
}
~file_parser_error() throw()
// gcc 3.4.2 complains about lack of throw specifier on compiler generated dtor
{
}
///////////////////////////////////////////////////////////////////////
// Data access
// Get error message (without line and file - use what() to get full message)
std::string message()
{
return m_message;
}
// Get error filename
std::string filename()
{
return m_filename;
}
// Get error line number
unsigned long line()
{
return m_line;
}
private:
std::string m_message;
std::string m_filename;
unsigned long m_line;
// Format error message to be returned by std::runtime_error::what()
std::string format_what(const std::string &message,
const std::string &filename,
unsigned long line)
{
std::stringstream stream;
if (line > 0)
stream << (filename.empty() ? "<unspecified file>" : filename.c_str()) <<
'(' << line << "): " << message;
else
stream << (filename.empty() ? "<unspecified file>" : filename.c_str()) <<
": " << message;
return stream.str();
}
};
} }
#endif