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iphoneiosipadnsstringnsurl

issue in encoding a string with percent escaping iphone

This is my string.

NSString *str=@"A & B";

now i am converting it to NSUTF8StringEncoding.

str = [str stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSLog(@"str: %@", str);

space is replaced with %20 but & is not replaced with %26.

nslog show

str: A%20&%20B

This is also not working

NSString *str=@"(A) & (B)";
str = [str stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSLog(@"str: %@", str);

nslog show

str: (A)%20&%20(B)

I need this because i have to pass this as parameter value in webservice. Anybody have idea for this. Please help me for this issue. Nice answer will be appreciated

Solution

  • You can use CFURLCreateStringByAddingPercentEscapes() to do that:

    NSString *string = ...;
NSString *encodedString = CFBridgingRelease(CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault, (__bridge CFStringRef)string, NULL, CFSTR("!*'();:@&=+$,/?%#[]"), kCFStringEncodingUTF8));