#!/usr/bin/perl
#
# This demonstrates a method of writing format-ed output into
# variables under Perl 4.
#
# mjd-perl-lod@plover.com

format OUT = 
@<<<<<<<<< | @|||||||||| | @>>>>>>>>>>          @#####.##
$left,       $center,      $right,              $numeric
.


$numeric = 11;
unless ($ARGV[0] eq 'receive') {
  close STDIN or die "close STDIN: $!";
  pipe(STDIN, OUT) or die "pipe: $!";
  for ($i=0; $i<7; $i++) {
    ($left, $center, $right) = split /\s+/, scalar <DATA>;
    write OUT;
    $numeric *= 2 / 3;
  }
  close OUT;
  exec "./$0 receive";
  die "exec: $!";
}

# Read formatted data from standard input
@formatted = <STDIN>;
for ($i = 0 ; $i < @formatted; $i++) {
  print  "STDIN $i: $formatted[$i]";
}

__DATA__
In the beginning
God created the
heavens and the
Earth.  The Earth
was without form
and void, and
darkness was upon
the face of 
the deep.