Wait... what? hdb's answer was exactly what you needed? Don't get me wrong, it's clever and there's a good chance it's fast, but anybody reading your code will have no idea what the hell is going on. I have to agree with some of the other posters that some kind of sort with substring is the right way to go here. Even if it's slower, at least it properly conveys your intent.
in reply to Re: Merge hash keys
in thread Merge hash keys