Initial mod_perl-2.0 port.

[MyWeb.git] / Hash / Sub.pm

diff --git a/Hash/Sub.pm b/Hash/Sub.pm
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+# $Id$
+# Hash tied to optionally dynamically generate its values
+# Copyright (C) 2005 Jan Kratochvil <project-www.jankratochvil.net@jankratochvil.net>
+# 
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; exactly version 2 of June 1991 is required
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+
+package My::Hash::Sub;
+our $VERSION=do { my @r=(q$Revision$=~/\d+/g); sprintf "%d.".("%03d"x$#r),@r; };
+our $CVS_ID=q$Id$;
+use strict;
+use warnings;
+require Tie::Hash;     # for Tie::StdHash
+our @ISA=qw(Tie::StdHash);
+use Carp qw(cluck confess);
+
+
+sub FETCH($$)
+{
+my($this,$key)=@_;
+
+       my $val=$this->SUPER::FETCH($key);
+       return $val if $key=~/_sub$/;   # force
+       return $val if !defined $val;   # 1-item array is intentional.
+       return $val if "CODE" ne ref $val;
+       return &{$val}($this,$key);
+}
+
+1;