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confuse 3.3

    1: #define _GNU_SOURCE
    2: #include <string.h>
    3: #include <stdlib.h>
    4: #include <locale.h>
    5: #include "confuse.h"
    6: 
    7: int main(void)
    8: {
    9: 	static cfg_bool_t verbose = cfg_false;
   10: 	static char *server = NULL;
   11: 	static double delay = 1.356e-32;
   12: 	static char *username = NULL;
   13: 
   14: 	/* Although the macro used to specify an integer option is called
   15: 	 * CFG_SIMPLE_INT(), it actually expects a long int. On a 64 bit system
   16: 	 * where ints are 32 bit and longs 64 bit (such as the x86-64 or amd64
   17: 	 * architectures), you will get weird effects if you use an int here.
   18: 	 *
   19: 	 * If you use the regular (non-"simple") options, ie CFG_INT() and use
   20: 	 * cfg_getint(), this is not a problem as the data types are implicitly
   21: 	 * cast.
   22: 	 */
   23: 	static long int debug = 1;
   24: 
   25: 	cfg_opt_t opts[] = {
   26: 		CFG_SIMPLE_BOOL("verbose", &verbose),
   27: 		CFG_SIMPLE_STR("server", &server),
   28: 		CFG_SIMPLE_STR("user", &username),
   29: 		CFG_SIMPLE_INT("debug", &debug),
   30: 		CFG_SIMPLE_FLOAT("delay", &delay),
   31: 		CFG_END()
   32: 	};
   33: 	cfg_t *cfg;
   34: 
   35: 	/* Localize messages & types according to environment, since v2.9 */
   36: #ifdef LC_MESSAGES
   37: 	setlocale(LC_MESSAGES, "");
   38: 	setlocale(LC_CTYPE, "");
   39: #endif
   40: 
   41: 	/* set default value for the server option */
   42: 	server = strdup("gazonk");
   43: 
   44: 	cfg = cfg_init(opts, 0);
   45: 	cfg_parse(cfg, "simple.conf");
   46: 
   47: 	printf("verbose: %s\n", verbose ? "true" : "false");
   48: 	printf("server: %s\n", server);
   49: 	printf("username: %s\n", username);
   50: 	printf("debug: %ld\n", debug);
   51: 	printf("delay: %G\n", delay);
   52: 
   53: 	printf("setting username to 'foo'\n");
   54: 	/* using cfg_setstr here is not necessary at all, the equivalent
   55: 	 * code is:
   56: 	 *   free(username);
   57: 	 *   username = strdup("foo");
   58: 	 */
   59: 	cfg_setstr(cfg, "user", "foo");
   60: 	printf("username: %s\n", username);
   61: 
   62: 	/* print the parsed values to another file */
   63: 	{
   64: 		FILE *fp = fopen("simple.conf.out", "w");
   65: 
   66: 		cfg_print(cfg, fp);
   67: 		fclose(fp);
   68: 	}
   69: 
   70: 	cfg_free(cfg);
   71: 
   72: 	/* You are responsible for freeing string values. */
   73: 	free(server);
   74: 	free(username);
   75: 
   76: 	return 0;
   77: }