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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
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