function thats prints files by their extension pattern

printFilesByExtensionPattern.m

void printFilesByExtensionPattern(NSString* path, NSString* pattern)
{
    NSString *filename;
    int index = 0;
    for(filename in [[NSFileManager defaultManager] enumeratorAtPath: [path stringByExpandingTildeInPath]])
    {
        if([[filename pathExtension] isEqualToString: pattern])
        {
            ++index;
            NSLog(@"%@ : %d", filename, index);
        }
    }
} // printFilesByExtensionPattern