http://qs1969.pair.com?node_id=11128821


in reply to Re^3: You won't believe what this regular expression does!
in thread You won't believe what this regular expression does!

But please note the second fOO

Yes, good point! I think the main question is what the intent of the regex is. If it's "replace any o's at the end of each line", then the better solution is, as you said, /o+$/, and using o* is the "mistake".