Objective-C (iOS) replace all occurrences of Wildcard in a string with the alphabet

First of all, this is not homework! :)

Say I have an NSString: "the?or?" For each wildcard i want the string to come back with at least 26 (not including 'ñ' and 'ng' that seem to have been added by some countries like the Phillipines). So a word with 2 ? would give me 26^2 (i think) results.

I want it to return an NSArray 开发者_JAVA百科of the following:

theaora
theaorb
theaorc
...
thezora
thezorb
thezorc
...
thezorx
thezory
thezorz

Since this is recursion (I am assuming) I am having issues...

I am working on this:

NSArray *countOfWildCardArray = [wordToSearch componentsSeparatedByString:@"?"];
        int countOfWildCard = [countOfWildCardArray count] - 1;
        if (countOfWildCard > 0)
        {
            for ( NSInteger i = 0; i < countOfWildCard; i++) 
            {
                NSLog(@"Looking for wildcard #%i",i);
                for(char a = 'a'; a <= 'z'; a++)
                {   
                    NSString *tempStringA = [NSString stringWithString:wordToSearchFor];

                ......
                }
            }
        }

and then I am lost. I actually don't think I am on the right track. Like I said, recursion bothers me a lot :)

Does anyone have an idea of what do do?

So, after having received a few questions I will just state that this issue has to do with letting the user know how many anagrams I can make from those resulting words. I have a fast way of making the anagrams for the word list and am simply looking to create the word list that the anagrams are to be made from. I am sure there is a better way than the above method. What I am asking for is some help finding the best way of creating the array.

Try this,

NSArray *wildCardArray;
NSArray *countOfWildCardArray = [wordToSearch componentsSeparatedByString:@"?"];
        int countOfWildCard = [countOfWildCardArray count] - 1;
        if (countOfWildCard > 0)
        {
            for(char a = 'a'; a <= 'z'; a++)
             { 
                for(char b = 'a'; b <= 'z'; b++)
                {  
                     NSString *tempStringA=[NSString stringWithFormat:@"%@%c%@%c",[countOfWildCardArray objectAtIndex:0],a,[countOfWildCardArray objectAtIndex:1],b];
                     [wildCardArray addObject:tempStringA];
                }
            }
        }