#!/usr/bin/perl

use FileHandle;

# Sort out the filename order from their names
$qfname = $ARGV[0] if $ARGV[0] =~ /^qf/;
$qfname = $ARGV[1] if $ARGV[1] =~ /^qf/;
$dfname = $ARGV[0] if $ARGV[0] =~ /^df/;
$dfname = $ARGV[1] if $ARGV[1] =~ /^df/;

# Did they just give me a message id with no qf/df on the front?
if (@ARGV==1 && $ARGV[0] !~ /^[qd]f/) {
  $qfname = 'qf' . $ARGV[0];
  $dfname = 'df' . $ARGV[0];
}

unless ($qfname && $dfname) {
  print STDERR "\n";
  print STDERR "Usage: $0 qf-name df-name\n";
  print STDERR "   Or: $0 df-name qf-name\n";
  print STDERR "   Or: $0 message-queue-id\n";
  print STDERR "\n";
  exit(1);
}

$qf = new FileHandle;
$qf->open("< $qfname") or die "Could not find qf filename $qfname";
$df = new FileHandle;
$df->open("< $dfname") or die "Could not find df filename $dfname";

my $inheader = 0;
my $line = '';
while (defined($line = <$qf>)) {
  last if $line =~ /^\./;
  next unless $line =~ /^H/ || $inheader;
  if ($inheader) {
    if ($line =~ /^\s/) {
      print $line;
      next;
    }
    $inheader = 0;
  }
  if ($line =~ s/^H\?[^?]*\?//) {
    print $line;
    $inheader = 1;
  }
}

print "\n";

while (defined($line = <$df>)) {
  print $line;
}

$df->close;
$qf->close;