116 lines
3.5 KiB
C
Executable File
116 lines
3.5 KiB
C
Executable File
/* ----------------------------------------------------------------------------
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libconfig - A library for processing structured configuration files
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Copyright (C) 2005-2018 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 <stdio.h>
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#include <stdlib.h>
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#include <libconfig.h>
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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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*/
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int main(int argc, char **argv)
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{
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config_t cfg;
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config_setting_t *setting;
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const char *str;
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config_init(&cfg);
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/* Read the file. If there is an error, report it and exit. */
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if(! config_read_file(&cfg, "example.cfg"))
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{
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fprintf(stderr, "%s:%d - %s\n", config_error_file(&cfg),
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config_error_line(&cfg), config_error_text(&cfg));
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config_destroy(&cfg);
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return(EXIT_FAILURE);
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}
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/* Get the store name. */
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if(config_lookup_string(&cfg, "name", &str))
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printf("Store name: %s\n\n", str);
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else
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fprintf(stderr, "No 'name' setting in configuration file.\n");
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/* Output a list of all books in the inventory. */
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setting = config_lookup(&cfg, "inventory.books");
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if(setting != NULL)
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{
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int count = config_setting_length(setting);
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int i;
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printf("%-30s %-30s %-6s %s\n", "TITLE", "AUTHOR", "PRICE", "QTY");
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for(i = 0; i < count; ++i)
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{
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config_setting_t *book = config_setting_get_elem(setting, i);
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/* Only output the record if all of the expected fields are present. */
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const char *title, *author;
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double price;
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int qty;
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if(!(config_setting_lookup_string(book, "title", &title)
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&& config_setting_lookup_string(book, "author", &author)
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&& config_setting_lookup_float(book, "price", &price)
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&& config_setting_lookup_int(book, "qty", &qty)))
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continue;
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printf("%-30s %-30s $%6.2f %3d\n", title, author, price, qty);
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}
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putchar('\n');
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}
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/* Output a list of all movies in the inventory. */
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setting = config_lookup(&cfg, "inventory.movies");
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if(setting != NULL)
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{
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unsigned int count = config_setting_length(setting);
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unsigned int i;
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printf("%-30s %-10s %-6s %s\n", "TITLE", "MEDIA", "PRICE", "QTY");
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for(i = 0; i < count; ++i)
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{
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config_setting_t *movie = config_setting_get_elem(setting, i);
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/* Only output the record if all of the expected fields are present. */
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const char *title, *media;
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double price;
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int qty;
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if(!(config_setting_lookup_string(movie, "title", &title)
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&& config_setting_lookup_string(movie, "media", &media)
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&& config_setting_lookup_float(movie, "price", &price)
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&& config_setting_lookup_int(movie, "qty", &qty)))
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continue;
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printf("%-30s %-10s $%6.2f %3d\n", title, media, price, qty);
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}
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putchar('\n');
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}
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config_destroy(&cfg);
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return(EXIT_SUCCESS);
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}
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/* eof */
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