If you define vowel as one of 'a', 'e', 'i', 'o' and 'u' (because I know some other monks will point out that I'm being anglocentric :)), a regex that fits your criteria is:

/(?<![aeiou])[aeiou]p\b/

Please adjust for case sensitivity as necessary.

Edit: Did you mean two vowels in a row or the same vowel twice before the 'p'? The regex above solves the former, but not the latter.

In reply to Re: Another regex to solve ... by AR
in thread Another regex to solve ... by pat_mc

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