If you're actually into making this more awesome, you almost certainly want to put this together with some in-memory data structure. And that data structure sho

If you're actually into making this more awesome, you almost certainly want to put this together with some in-memory data structure. And that data structure should probably be a suffix tree/trie. Check it out: http://en.wikipedia.org/wiki/Suffix_tree http://en.wikipedia.org/wiki/Suffix_tree. You'd need to modify that to deal with having more than one word, but that's not too bad (you just lay the trees on top of each other).