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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' and displays
+// some of its contents.
+
+int main(int argc, char **argv)
+{
+ 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);
+ }
+
+ // Get the store name.
+ try
+ {
+ string name = cfg.lookup("name");
+ cout << "Store name: " << name << endl << endl;
+ }
+ catch(const SettingNotFoundException &nfex)
+ {
+ cerr << "No 'name' setting in configuration file." << endl;
+ }
+
+ const Setting& root = cfg.getRoot();
+
+ // Output a list of all books in the inventory.
+ try
+ {
+ const Setting &books = root["inventory"]["books"];
+ int count = books.getLength();
+
+ cout << setw(30) << left << "TITLE" << " "
+ << setw(30) << left << "AUTHOR" << " "
+ << setw(6) << left << "PRICE" << " "
+ << "QTY"
+ << endl;
+
+ for(int i = 0; i < count; ++i)
+ {
+ const Setting &book = books[i];
+
+ // Only output the record if all of the expected fields are present.
+ string title, author;
+ double price;
+ int qty;
+
+ if(!(book.lookupValue("title", title)
+ && book.lookupValue("author", author)
+ && book.lookupValue("price", price)
+ && book.lookupValue("qty", qty)))
+ continue;
+
+ cout << setw(30) << left << title << " "
+ << setw(30) << left << author << " "
+ << '$' << setw(6) << right << price << " "
+ << qty
+ << endl;
+ }
+ cout << endl;
+ }
+ catch(const SettingNotFoundException &nfex)
+ {
+ // Ignore.
+ }
+
+ // Output a list of all books in the inventory.
+ try
+ {
+ const Setting &movies = root["inventory"]["movies"];
+ int count = movies.getLength();
+
+ cout << setw(30) << left << "TITLE" << " "
+ << setw(10) << left << "MEDIA" << " "
+ << setw(6) << left << "PRICE" << " "
+ << "QTY"
+ << endl;
+
+ for(int i = 0; i < count; ++i)
+ {
+ const Setting &movie = movies[i];
+
+ // Only output the record if all of the expected fields are present.
+ string title, media;
+ double price;
+ int qty;
+
+ if(!(movie.lookupValue("title", title)
+ && movie.lookupValue("media", media)
+ && movie.lookupValue("price", price)
+ && movie.lookupValue("qty", qty)))
+ continue;
+
+ cout << setw(30) << left << title << " "
+ << setw(10) << left << media << " "
+ << '$' << setw(6) << right << price << " "
+ << qty
+ << endl;
+ }
+ cout << endl;
+ }
+ catch(const SettingNotFoundException &nfex)
+ {
+ // Ignore.
+ }
+
+ return(EXIT_SUCCESS);
+}
+
+// eof