Home/ Questions/Q 1066015
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-16T19:57:10+00:00

How can I organize this string better for best coding practices. It’s a string

  • 0

How can I organize this string better for best coding practices. It’s a string that defines filters:

NSString* string3 = [[[[[[tvA.text stringByReplacingOccurrencesOfString:@"\n" withString:@" "] stringByReplacingOccurrencesOfString:@"&" withString:@"and"] stringByReplacingOccurrencesOfString:@"garçon" withString:@"garcon"] stringByReplacingOccurrencesOfString:@"Garçon" withString:@"Garcon"] stringByReplacingOccurrencesOfString:@"+" withString:@"and"] stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding];

Is there a way to have it be:

NSString* string3 = [[[[[tvA.text filter1] filter2] filter3] filter4] filter5] stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding];
Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    You shouldn’t be replacing & and + before percent-escaping. The problem is that stringByAddingPercentEscapesUsingEncoding: (IIRC) adds the minimum escapes to make it a “valid” URL string, whereas you want to escape anything that might have a special interpretation. For this, use CFURLCreateStringByAddingPercentEscapes():

    return [(NSString*)CFURLCreateStringByAddingPercentEscapes(NULL, (CFStringRef)aString, NULL, (CFStringRef)@":/?#[]@!$&'()*+,;=", kCFStringEncodingUTF8) autorelease];

    This encodes & and + correctly, instead of just changing them to “and”. It also encodes newlines as %0a (so you might want to replace them with spaces; that’s your call), and encodes ç as %C3%A7 (which is decoded correctly if you use UTF-8 on the server).

    • 0