First write differences down. Then design subroutine arguments. Then desing subroutine. What are the differences?

• List of field indexes.
• grep regexp (NETPACKET, NETERROR)
• grep regexp (Network, Busy, Memory)
• what to do with arguments?
• others?

Then subroutine arguments:

sub yoursub
{
  my ($rangearrayref, $firstre, $secondre, $subref) = @_;
  ...
}

yoursub([2..7], 'NETPACKET', 'Network', \&transformNetpacketSub);
[download]

or hash style:

sub yoursub
{
  my %args = @_;
  my ($rangearrayref, $firstre, $secondre, $subref) = ($args{-range}, 
+$args{-firstre}, $args{-secondre}, $args{-transformsub});
  ...
}

yoursub(-range => [2..7], -firstre=>'NETPACKET', -secondre=>'Network',
+ ->transformsub=>\&transformNetpacketSub);
[download]

And then the only problem is to write proper transformNetpacketSub. I would do it like this:

sub transformNetpacketSub
{
  my $str = shift;
  # do anything with string
  return $str;
}
[download]

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