// find the fields output for CSV
void *determine_csv_fields(r_device* devices, int num_devices)
{
int i, j;
int cur_output_fields = 0;
int num_output_fields = 0;
void *csv_aux;
const char **output_fields = NULL;
for (i = 0; i < num_devices; i++)
if (!devices[i].disabled) {
if (devices[i].fields)
for (int c = 0; devices[i].fields[c]; ++c)
++num_output_fields;
else
fprintf(stderr, "rtl_433: warning: %d \"%s\" does not support CSV output\n",
i, devices[i].name);
}
output_fields = calloc(num_output_fields + 1, sizeof(char*));
for (i = 0; i < num_devices; i++) {
if (!devices[i].disabled && devices[i].fields) {
for (int c = 0; devices[i].fields[c]; ++c) {
output_fields[cur_output_fields] = devices[i].fields[c];
++cur_output_fields;
}
}
}
csv_aux = data_csv_init(output_fields, num_output_fields);
free(output_fields);
return csv_aux;
}
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include "data.h"
int main()
{
data_t *data = data_make("label" , "", DATA_STRING, "1.2.3",
"house_code" , "House Code", DATA_INT, 42,
"temp" , "Temperature", DATA_DOUBLE, 99.9,
"array" , "Array", DATA_ARRAY, data_array(2, DATA_STRING, (char*[2]){"hello", "world"}),
"array2" , "Array 2", DATA_ARRAY, data_array(2, DATA_INT, (int[2]){4, 2}),
"array3" , "Array 3", DATA_ARRAY, data_array(2, DATA_ARRAY, (data_array_t*[2]){
data_array(2, DATA_INT, (int[2]){4, 2}),
data_array(2, DATA_INT, (int[2]){5, 5}) }),
"data" , "Data", DATA_DATA, data_make("Hello", "hello", DATA_STRING, "world", NULL),
NULL);
const char *fields[] = { "label", "house_code", "temp", "array", "array2", "array3", "data", "house_code" };
data_print(data, stdout, &data_json_printer, NULL); fprintf(stdout, "\n");
data_print(data, stdout, &data_kv_printer, NULL);
void *csv_aux = data_csv_init(fields, sizeof fields / sizeof *fields);
data_print(data, stdout, &data_csv_printer, csv_aux);
data_csv_free(csv_aux);
data_free(data);
}
