103 lines
3.0 KiB
C++
103 lines
3.0 KiB
C++
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/* ----------------------------------------------------------------------------
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libconfig - A library for processing structured configuration files
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Copyright (C) 2005-2010 Mark A Lindner
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This file is part of libconfig.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public License
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as published by the Free Software Foundation; either version 2.1 of
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the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; if not, see
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<http://www.gnu.org/licenses/>.
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----------------------------------------------------------------------------
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*/
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#include <iostream>
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#include <iomanip>
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#include <cstdlib>
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#include <libconfig.h++>
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using namespace std;
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using namespace libconfig;
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// This example reads the configuration file 'example.cfg', adds a new
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// movie record to the movies list, and writes the updated configuration to
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// 'updated.cfg'.
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int main(int argc, char **argv)
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{
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static const char *output_file = "updated.cfg";
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Config cfg;
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cfg.setOptions(Config::OptionFsync
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| Config::OptionSemicolonSeparators
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| Config::OptionColonAssignmentForGroups
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| Config::OptionOpenBraceOnSeparateLine);
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// Read the file. If there is an error, report it and exit.
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try
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{
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cfg.readFile("example.cfg");
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}
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catch(const FileIOException &fioex)
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{
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std::cerr << "I/O error while reading file." << std::endl;
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return(EXIT_FAILURE);
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}
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catch(const ParseException &pex)
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{
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std::cerr << "Parse error at " << pex.getFile() << ":" << pex.getLine()
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<< " - " << pex.getError() << std::endl;
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return(EXIT_FAILURE);
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}
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// Find the 'movies' setting. Add intermediate settings if they don't yet
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// exist.
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Setting &root = cfg.getRoot();
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if(! root.exists("inventory"))
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root.add("inventory", Setting::TypeGroup);
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Setting &inventory = root["inventory"];
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if(! inventory.exists("movies"))
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inventory.add("movies", Setting::TypeList);
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Setting &movies = inventory["movies"];
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// Create the new movie entry.
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Setting &movie = movies.add(Setting::TypeGroup);
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movie.add("title", Setting::TypeString) = "Buckaroo Banzai";
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movie.add("media", Setting::TypeString) = "DVD";
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movie.add("price", Setting::TypeFloat) = 12.99;
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movie.add("qty", Setting::TypeInt) = 20;
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// Write out the updated configuration.
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try
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{
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cfg.writeFile(output_file);
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cerr << "Updated configuration successfully written to: " << output_file
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<< endl;
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}
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catch(const FileIOException &fioex)
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{
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cerr << "I/O error while writing file: " << output_file << endl;
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return(EXIT_FAILURE);
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}
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return(EXIT_SUCCESS);
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}
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// eof
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