Double percent-encoding of document identifiers

main.m

//
//  main.m
//  TestPercentEscaping
//
//  Created by Marty Schoch on 7/3/11.
//  Copyright 2011 Hexedit Reality, LLC. All rights reserved.
//

#import <Foundation/Foundation.h>

int main (int argc, const char * argv[])
{

    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];

    // insert code here...
    NSURL *root = [NSURL URLWithString:@"http://mschoch.iriscouch.com/notrealdb"];    
    NSLog(@"Root URL is %@", root);
    
    NSString *documentIdentifier = @"document space";
    NSLog(@"Document identifier containg space is %@", documentIdentifier);
    
    NSString *encodedIdentifier = [(NSString *)CFURLCreateStringByAddingPercentEscapes(NULL, (CFStringRef)documentIdentifier, NULL, CFSTR("/"), kCFStringEncodingUTF8) autorelease];
    NSLog(@"Encoded identifier is %@", encodedIdentifier);
    
    NSURL *rootWithEncodedIdentifierAppended = [root URLByAppendingPathComponent:encodedIdentifier];
    NSLog(@"Wrong: %@", rootWithEncodedIdentifierAppended);
    
    NSURL *rootWithIdentifierAppended = [root URLByAppendingPathComponent:documentIdentifier];
    NSLog(@"Right: %@", rootWithIdentifierAppended);

    [pool drain];
    return 0;
}