Here's a solution that creates the output you've added to the OP using the updated input data. (When making changes to a post, especially if replies relied on the original unchanged data, specify the changes you made by adding "Update:".)

while (<DATA>) {
   my @parts = unpack('A5 A7 A5 A3 A5 A9 A8 A5 A*', $_);
   for ($parts[6]) {
      s/\s+/ /g;
      s/^\s//;
   }
   print(join(';', @parts), "\n");
}

[download]

or 

while (<DATA>) {
   my @parts = unpack('A5 A7 A5 A3 A5 A9 A2 A4 A2 A5 A*', $_);
   my $flags = join ' ', grep length, @parts[6..8];
   splice(@parts, 6, 3, $flags);
   print(join(';', @parts), "\n");
}

[download]

The second version is basically the same as FunkyMonk's, but I do the substitution after extracting the fields.

In reply to Re^3: gathering of some elements of a list by ikegami
in thread gathering of some elements of a list by steph_bow

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