/* Parse a configuration file into a struct using X-Macros */

#include <stdio.h>
#include <string.h>
#include "../ini.h"

/* define the config struct type */
typedef struct
{
#define CFG(s, n, default) char* s##_##n;
#include "config.def"
} config;

/* create one and fill in its default values */
config Config = {
#define CFG(s, n, default) default,
#include "config.def"
};

/* process a line of the INI file, storing valid values into config struct */
int handler(void* user,
            const char* section,
            const char* name,
            const char* value)
{
    config* cfg = (config*)user;

    if (0)
    {
    }
#define CFG(s, n, default) \
    else if (strcmp(section, #s) == 0    \
             && strcmp(name, #n) == 0) {cfg->s##_##n = strdup(value);}
#include "config.def"

    return 1;
}

/* print all the variables in the config, one per line */
void dump_config(config* cfg)
{
#define CFG(s, n, default) printf("%s_%s = %s\n", #s, #n, cfg->s##_##n);
#include "config.def"
}

int main(int argc, char* argv[])
{
    if (ini_parse("test.ini", handler, &Config) < 0)
    {
        printf("Can't load 'test.ini', using defaults\n");
    }
    dump_config(&Config);
    return 0;
}