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/* ----------------------------------------------------------------------------
libconfig - A library for processing structured configuration files
Copyright (C) 2005-2010 Mark A Lindner
This file is part of libconfig.
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 Library General Public
License along with this library; if not, see
<http://www.gnu.org/licenses/>.
----------------------------------------------------------------------------
*/
#include <iostream>
#include <iomanip>
#include <cstdlib>
#include <libconfig.h++>
using namespace std;
using namespace libconfig;
// This example reads the configuration file 'example.cfg', adds a new
// movie record to the movies list, and writes the updated configuration to
// 'updated.cfg'.
int main(int argc, char **argv)
{
static const char *output_file = "updated.cfg";
Config cfg;
// Read the file. If there is an error, report it and exit.
try
{
cfg.readFile("example.cfg");
}
catch(const FileIOException &fioex)
{
std::cerr << "I/O error while reading file." << std::endl;
return(EXIT_FAILURE);
}
catch(const ParseException &pex)
{
std::cerr << "Parse error at " << pex.getFile() << ":" << pex.getLine()
<< " - " << pex.getError() << std::endl;
return(EXIT_FAILURE);
}
// Find the 'movies' setting. Add intermediate settings if they don't yet
// exist.
Setting &root = cfg.getRoot();
if(! root.exists("inventory"))
root.add("inventory", Setting::TypeGroup);
Setting &inventory = root["inventory"];
if(! inventory.exists("movies"))
inventory.add("movies", Setting::TypeList);
Setting &movies = inventory["movies"];
// Create the new movie entry.
Setting &movie = movies.add(Setting::TypeGroup);
movie.add("title", Setting::TypeString) = "Buckaroo Banzai";
movie.add("media", Setting::TypeString) = "DVD";
movie.add("price", Setting::TypeFloat) = 12.99;
movie.add("qty", Setting::TypeInt) = 20;
// Write out the updated configuration.
try
{
cfg.writeFile(output_file);
cerr << "Updated configuration successfully written to: " << output_file
<< endl;
}
catch(const FileIOException &fioex)
{
cerr << "I/O error while writing file: " << output_file << endl;
return(EXIT_FAILURE);
}
return(EXIT_SUCCESS);
}
// eof
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