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Nice solution of the "variable length lookbehind" not allowed problem!
But why \n instead of $ ? *
editI suppose it's necessary because the following assertion wouldn't be executed?
update*) well, I just noticed the "@_\n@_" part where you are doubling the input, which explains the "\n" and some other confusion about pos. I agree, "too much cheating!" ;-p
Cheers Rolf
In reply to Re^3: Puzzle Regex: Letter Frequency Arithmetic Sequence (UPDATED)
by LanX
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