Re^2: nested combinations: algorithm advice?

[revdiablo]

Excellent! I thought there might be a nicer way than the brute-force combinations. Also, using regexes instead of looping on the word lists is nice -- let the regex engine do the dirty work. Thanks for the reply, I will probably steal your ideas. :)

[bmann]

Glad you liked it. One caveat though - craft your regex with care if you use this (or use a hash like jasper's version below, which doesn't suffer from this problem). The regex I used was naive in that it doesn't detect the boundary between the words. Add "twop_threep" to DATA, you'll see a false positive.