#!/usr/bin/perl

use strict;
use warnings;

use Auto::Config;

my $root_local = Auto::Config::config->get(root => 'local');

# This line produces the error message
# config->set('root', remote => 'docroot_new');

Auto::Config::config->set('root', remote => 'docroot_new');

print "$root_local\n";

##</code><code>##

package Auto::Config_class;

sub new {
  my $class = shift;
  my $fn = shift;
  my $this = {
    root => {
      local => 'c:/local',
      remote => 'docroot',
    },
  };
  bless $this, $class 
}

sub get {
  my $this=shift;
  my $pri_key = shift;
  my $sec_key = shift;
  my $default = shift;
  exists $this->{$pri_key}{$sec_key} ? 
    $this->{$pri_key}{$sec_key} : 
    $default;
}

sub set {
  my $this=shift;
  my $pri_key = shift;
  my $sec_key = shift;
  my $value   = shift;
  $this->{$prim_key}{$sec_key} = $value;
}

1;

##</code><code>##


package Auto::Config;

use strict;
use warnings;

require Exporter;
our @EXPORT=qw(config);

use lib '..';
use Auto::Config_class;

my $config;

sub config {
  $config = Auto::Config_class->new('../cwi.ini')
    unless defined $config;
  $config;
}

1;