Imported Upstream version 1.4.8upstream/1.4.8

1 files changed, 97 insertions, 0 deletions

diff --git a/examples/c++/example2.cpp b/examples/c++/example2.cpp
new file mode 100644
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+++ b/examples/c++/example2.cpp
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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