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Invisible wrote:
> xs <- many1 digit
> if length xs > 3 then fail else return ()
By the way, this also means you have backtracking, which means you have
exponential time and space requirements for your match rather than provably
linear time and constant space.
--
Darren New, San Diego CA, USA (PST)
Serving Suggestion:
"Don't serve this any more. It's awful."
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