NSString containing hex convert to ascii equivalent

Question

I have an NSString that has hex information such as

<00000020 66747970 4d344120 00000000 4d344120 6d703432 69736f6d 00000000 00031203

wh

Answer 1

you should have done something like this:

NSData *_data = // ... whatever
NSMutableString *_string = [NSMutableString stringWithString:@""];
for (int i = 0; i < _data.length; i++) {
    unsigned char _byte;
    [_data getBytes:&_byte range:NSMakeRange(i, 1)];
    if (_byte >= 32 && _byte < 127) {
        [_string appendFormat:@"%c", _byte];
    } else {
        [_string appendFormat:@"[%d]", _byte];
    }
}
NSLog(@"%@", _string);