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