Radar 13443089

NSURLEncodingCase.m

#import <Foundation/Foundation.h>

/*

clang -Wall -O2 -fobjc-arc NSURLEncodingCase.m -framework Foundation -o NSURLEncodingCase

./NSURLEncodingCase 'https://localhost/test%5b' 'https://localhost/test%5B'
2013-03-18 11:04:42.663 NSURLEncodingCase[80520:707] https://localhost/test%5b is NOT equal https://localhost/test%5B

http://tools.ietf.org/html/rfc3986#section-2.1 says

"The uppercase hexadecimal digits 'A' through 'F' are equivalent to
   the lowercase digits 'a' through 'f', respectively.  If two URIs
   differ only in the case of hexadecimal digits used in percent-encoded
   octets, they are equivalent.  For consistency, URI producers and
   normalizers should use uppercase hexadecimal digits for all percent-
   encodings."
   
NSURL's documentation says that it intentionaly violates RFC 3986:

"Two NSURLs are considered equal if and only if they return identical values for both baseURL and relativeString."
   
*/

int main(int argc, char *argv[])
{
    if (argc != 3) {
        fprintf(stderr, "usage: %s url1 url2\n", argv[0]);
        return 1;
    }
    @autoreleasepool {
        NSString *urlString1 = [NSString stringWithUTF8String:argv[1]];
        NSString *urlString2 = [NSString stringWithUTF8String:argv[2]];
        
        NSURL *url1 = [NSURL URLWithString:urlString1];
        NSURL *url2 = [NSURL URLWithString:urlString2];
    
        NSLog(@"url1 = %@ -- %@", [url1 baseURL], [url1 relativeString]);
        NSLog(@"url2 = %@ -- %@", [url2 baseURL], [url2 relativeString]);
        
        NSLog(@"%@ %@ %@", url1, [url1 isEqual:url2] ? @"is equal" : @"is NOT equal", url2);
    }
    return 0;
}