Looks like a job for the flip-flop operator (..) as seen in perlop e.g 
while(<DATA>) {
  chomp;
  next if /^(?:qcp|#)/ .. /^#cardtype/ or 0 == length;

  # do stuff here
}

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HTH

_________
broquaint

update: added check for blank lines

In reply to Re: Processing lines after a pattern in a while loop by broquaint
in thread Processing lines after a pattern in a while loop by NovMonk

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