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use warnings;
use strict;
# THIS SCRIPT IS ALSO USED IN qpdf.test
# Output every line from STDIN that appears in the file.
my %wanted = ();
my %notwanted = ();
my $f = $ARGV[0];
if (open(F, "<$f"))
{
while (<F>)
{
chomp;
if (s/^!//)
{
$notwanted{$_} = 1;
}
else
{
$wanted{$_} = 1;
}
}
close(F);
}
while (<STDIN>)
{
chomp;
if (exists $wanted{$_})
{
print $_, "\n";
}
elsif (exists $notwanted{$_})
{
delete $notwanted{$_};
}
}
foreach my $k (sort keys %notwanted)
{
print "!$k\n";
}
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