Crude way to tack http:// on to front of a text field, if it's not already present

DEAppDelegate.m

#import "DEAppDelegate.h"

@implementation DEAppDelegate

- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{
    // Insert code here to initialize your application
}

- (IBAction)processURL:(id)sender {
    NSString* theURLString = nil;
    theURLString = [[self theURLbar] stringValue];
    NSLog(@"Retrieved string [%@] from GUI", theURLString);

    /* This approach didn't work
    NSURL* theRealURL = nil;
    theRealURL = [NSURL URLWithString:theURLString];
    NSLog(@"Converted to URL [%@]", theRealURL);
    
    theURLString = [theRealURL absoluteString];
    NSLog(@"Sending string [%@] to GUI", theURLString);
    [[self theURLbar] setStringValue:theURLString];
    */
    
    if(! [[theURLString substringToIndex:7] isEqualToString:@"http://"])
    {
        //Log line because I was getting the index wrong so it always failed
        NSLog(@"Substring was... [%@]", [theURLString substringToIndex:6]);
        theURLString = [NSString stringWithFormat:@"http://%@", theURLString];
    }

    NSLog(@"Sending string [%@] to GUI", theURLString);
    [[self theURLbar] setStringValue:theURLString];

}
@end