Question

I’m using this code snippet to encode characters to be friendly with a POST request:

   NSString *unescaped = [textField text];
   NSString *escapedString = (__bridge_transfer NSString *)CFURLCreateStringByAddingPercentEscapes(
                                                                                  NULL,
                                                                                  (__bridge_retained CFStringRef)unescaped,
                                                                                  NULL,
                                                                                  (CFStringRef)@"!*'();:@&=+$,/?%#[]",
                                                                                  kCFStringEncodingUTF8);

Which works great, but does not add escape Quotation marks: "

How do I escape Quotation marks in IOS?

Answer 1

I needed to take the user inputted NSString from [textField text] and make sure that if there are quotation marks in the string, they are escaped properly in order to send through a POST statement.

My solution was:

unescaped = [unescaped stringByReplacingOccurrencesOfString:@"\"" withString:@"\\\""];