mark: seq_write

• seq_write is similar to seq_read:

        sub seq_write {
          my ($seqname, $data) = @_;
          my $newline = "$seqname: " . $data->run_list;

          for my $n (0 .. $#SEQUENCE) {
            for ($SEQUENCE[$n]) {
              if (/^\Q$seqname\E:\s+/) {
                $_ = $newline;
                return;
              }
            }
          }
          push @SEQUENCE, $newline;
        }

• Assigning to $_ (or doing push) modifies the file

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Copyright © 2012 M. J. Dominus