Andy_Langton - 3:44 pm on Mar 29, 2012 (gmt 0)
I still be a bit unsure that robots is the best solution to this one.
Incidentally, if you've replaced the underscores with a different character, then you can pattern match with some crazy mod_rewrite code.
Final comment, I forgot that the golden rule of robots exclusion is prefix matching so the final wildcard is unnecessary and, worse still, my syntax was lazy. Here's a corrected version: