With character c, and n-1 replaced with correct value, I think this would work: 
/^((?:[^c]*c){n-1}[^c]*)c/

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--
Mike

(Edit: Corion winds up with the same solution up above but this is slightly more efficient since the inner () don't need to be capturing)

In reply to Re: match n EMth/EM occurence by RMGir
in thread match n EMth/EM occurence by arindamm

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