thanks-gen

   1 #!/usr/bin/perl -nl
   2 # Use Perl's multi-byte alignment code, via sprintf, while
   3 # performing a rudimentary check for duplicate names and
   4 # removing duplicate name,email pairs.
   5 use Encode;
   6
   7 BEGIN { my (%seen, %name) }
   8
   9 chomp;
  10 my ($name, $email) = split '\0', decode ('UTF-8', $_);
  11
  12 $seen{$name}++
  13   and warn "$0: THANKS.in: duplicate name: $name\n";
  14
  15 print encode ('UTF-8', sprintf ('%-36s', $name)), $email
  16   unless $seen{"$name\0$email"}++;