Anagram Finder

anagram.m

    NSString *filePath = [[NSBundle mainBundle] pathForResource:@"eventyr" ofType:@"txt"];
    
    if (filePath) {
        
        NSData *fileData = [NSData dataWithContentsOfFile:filePath];
        NSString* words = [[NSString alloc] initWithData:fileData encoding:NSUTF8StringEncoding];
        
        NSMutableArray *lines = [[words componentsSeparatedByString:@"\n"] mutableCopy];
        
        NSMutableArray *possibleMatches = [[NSMutableArray alloc]init];
        NSMutableArray *matches = [[NSMutableArray alloc]init];
        
        for (int i=0; i<lines.count; i++) {
            
            NSString *currentString = [lines objectAtIndex:i];
            NSNumber *currentStringLength = [NSNumber numberWithInt:(int)currentString.length];
            
            for (int j=0; j<lines.count; j++) {
                
                NSString *compareString = [lines objectAtIndex:j];
                NSNumber *compareStringLength = [NSNumber numberWithInt:(int)compareString.length];
                
                if (![currentString isEqualToString:compareString]) {
                    
                    if ([currentStringLength compare:compareStringLength] == NSOrderedSame) {
                        
                        [possibleMatches addObject:compareString];
                        
                    }
                    
                }
                
            }
            
            NSMutableArray *currentCharArray = [[NSMutableArray alloc]init];
            NSMutableArray *compareCharArray = [[NSMutableArray alloc]init];
            
            for (int k = 0; k<possibleMatches.count; k++) {
                
                for (int l = 0; l<[currentStringLength intValue]; l++) {
                    
                    [currentCharArray addObject:[[currentString lowercaseString] substringWithRange: NSMakeRange (l, 1)]];
                    [compareCharArray addObject:[[[possibleMatches objectAtIndex:k] lowercaseString] substringWithRange: NSMakeRange (l, 1)]];
                }
                
                [currentCharArray sortUsingSelector:@selector(localizedCaseInsensitiveCompare:)];
                [compareCharArray sortUsingSelector:@selector(localizedCaseInsensitiveCompare:)];
                
                if ([compareCharArray isEqualToArray:currentCharArray]) {
                    
                    [matches addObject:[possibleMatches objectAtIndex:k]];
                    
                }
                
                [currentCharArray removeAllObjects];
                [compareCharArray removeAllObjects];
                
            }
            
            if (matches.count > 0) {
				
				[matches insertObject:currentString atIndex:0];
				
				NSString *result = [[matches valueForKey:@"description"] componentsJoinedByString:@" "];
				
				NSLog(@"Result: %@", result);
                
            }
            
            [matches removeAllObjects];
            [possibleMatches removeAllObjects];
            
        }
        
        
    }