72 lines
2.2 KiB
C++
Executable File
72 lines
2.2 KiB
C++
Executable File
/* ----------------------------------------------------------------------------
|
|
libconfig - A library for processing structured configuration files
|
|
libconfig chained - Extension for reading the configuration and defining
|
|
the configuration specification at once.
|
|
Copyright (C) 2016 Richard Schubert
|
|
|
|
This file is part of libconfig contributions.
|
|
|
|
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_chained.h"
|
|
|
|
using namespace std;
|
|
using namespace libconfig;
|
|
|
|
// This example reads complex types from config file using method chains.
|
|
|
|
void example2(Config& cfg)
|
|
{
|
|
ChainedSetting cs(cfg.getRoot());
|
|
|
|
auto books = cs["inventory"]["books"];
|
|
if (!books.exists())
|
|
{
|
|
cerr << "No book section available." << endl;
|
|
return;
|
|
}
|
|
|
|
cout << setw(30) << left << "TITLE" << " "
|
|
<< setw(30) << left << "AUTHOR" << " "
|
|
<< setw(6) << left << "PRICE" << " "
|
|
<< "QTY"
|
|
<< endl;
|
|
|
|
const int count = books.getLength();
|
|
for(int i = 0; i < count; ++i)
|
|
{
|
|
auto book = books[i];
|
|
|
|
string title = book["title"];
|
|
string author = book["author"];
|
|
double price = book["price"].min(0.0);
|
|
int qty = book["qty"].min(0);
|
|
|
|
// Only output the record if all of the expected fields are present.
|
|
if(book.isAnySettingMissing()) continue;
|
|
|
|
cout << setw(30) << left << title << " "
|
|
<< setw(30) << left << author << " "
|
|
<< '$' << setw(6) << right << price << " "
|
|
<< qty
|
|
<< endl;
|
|
}
|
|
}
|