http://qs321.pair.com?node_id=1136445


in reply to Trying to get intergenic sequences using BioPerl

(hum, I'm feeling a little anonymous today)... ok, what is this dd function?

I see nothing wrong with $start or $end

$endi = $starti; ## uh? start substring position = end substring position?
 ## end + 1 = start?, start -1 = end?; substring between 'end' and 'end' position = undef?