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Re^2: Another regex to solve ...

by Not_a_Number (Parson)
on Aug 18, 2011 at 23:34 UTC ( #921097=note: print w/replies, xml ) Need Help??

in reply to Re: Another regex to solve ...
in thread Another regex to solve ...

    say unless m{(?<=([aeiou]))\1p\z};

That allows eg 'help' or slurp'.

Update: I've no idea why though, or why it also allows 'hops' and 'hoops'...

Update 2: Got it! It also of course allows 'rabbit', or any other string that doesn't end in 'p' preceded by whatever. It was the unless that momentarily confused me. :)

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Re^3: Another regex to solve ...
by johngg (Abbot) on Aug 19, 2011 at 17:38 UTC

    Yes, that was a pretty woeful attempt on my part. I must have been thinking about a sub-set of words all ending with 'p' rather than the general case :-(



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