hi, This regular expression will work fine. 
$string ='ab23cdefgXX(3A5)XXhijkl23mnXX(3)XXopq432rsXX(450b)XXtuv';
@length= $string =~ m/XX/g;
print scalar @length;

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In reply to Re: count repeatation by sanku
in thread count repeatation by saranperl

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