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#include <setjmp.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include "csv.h"
bool
processFile(const char *filename)
{
FILE *in = fopen(filename, "r");
if ( in == NULL ) {
return false;
}
csv_t csv;
csv_init(&csv);
while ( csv_read(&csv, in) ) {
const size_t nfields = csv_nfields(&csv);
// ...
}
csv_cleanup(&csv);
(void) fclose(in);
return true;
}
bool
processFile_options(const char *filename)
{
FILE *in = fopen(filename, "r");
if ( in == NULL ) {
return false;
}
csv_options_t csv_options = csv_default_options;
csv_options.field_delimiter = '"';
csv_options.field_separator = ',';
csv_t csv;
csv_init_opt(&csv, &csv_options);
while ( csv_read(&csv, in) ) {
const size_t nfields = csv_nfields(&csv);
// ...
}
csv_cleanup(&csv);
(void) fclose(in);
return true;
}
static void
csvErrorHandler(csv_err_t err, void *cb_arg)
{
longjmp(*((jmp_buf *) cb_arg), err);
}
bool
processFile_error(const char *filename)
{
FILE *in = fopen(filename, "r");
if ( in == NULL ) {
return false;
}
csv_options_t csv_options = csv_default_options;
csv_options.field_delimiter = '"';
csv_options.field_separator = ',';
jmp_buf env;
csv_options.cb_error = csvErrorHandler;
csv_options.cb_error_arg = &env;
csv_t csv;
csv_init_opt(&csv, &csv_options);
switch ( setjmp(env) ) {
case CSV_ERR_OK:
while ( csv_read(&csv, in) ) {
const size_t nfields = csv_nfields(&csv);
// ...
}
break;
case CSV_ERR_OUT_OF_MEMORY:
case CSV_ERR_OUT_OF_RANGE:
case CSV_ERR_IO_READ:
case CSV_ERR_IO_WRITE:
csv_cleanup(&csv);
break;
}
(void) fclose(in);
return true;
}
int
main(void)
{
return EXIT_SUCCESS;
}
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