#! /usr/bin/perl

use strict;
use warnings;
use Data::Dumper;
use File::Glob qw/:glob/;

# There lives a file "passwords.dat" in the current directory....

# This matches the whole filename. OK
my $pat1 = "passwords.dat";
print "\nPATT $pat1\n";
print "PRE  ERR: ", Dumper($!);
my @list = bsd_glob($pat1, GLOB_ERR);
print Dumper(\@list);
print "POST ERR: ", Dumper($!);
print "\n";

# This file is not there so it doesn't match and afterwards $! ist
# set. OK
my $pat2 = "this_will_miss_in_globbing";
print "\nPATT $pat2\n";
print "PRE  ERR: ", Dumper($!);
@list = bsd_glob($pat2, GLOB_ERR);
print Dumper(\@list);
print "POST ERR: ", Dumper($!);
print "\n";

# This should match again since it is just the same as the first match
# but *afterwards $! ist still set*!!??
my $pat3 = "passwords.dat";
print "\nPATT $pat3\n";
print "PRE  ERR: ", Dumper($!);
@list = bsd_glob($pat3, GLOB_ERR);
print Dumper(\@list);
print "POST ERR: ", Dumper($!);
print "\n";

# This resets $! back to normal which is just fine
my $pat4 = "*.dat";
print "\nPATT $pat4\n";
print "PRE  ERR: ", Dumper($!);
@list = bsd_glob($pat4, GLOB_ERR);
print Dumper(\@list);
print "POST ERR: ", Dumper($!);
print "\n";