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# Xerl (c) 2005-2011,2013 Dipl.-Inform. (FH) Paul C. Buetow
#
# E-Mail: xerl@dev.buetow.org WWW: http://xerl.buetow.org
#
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# * Neither the name of buetow.org nor the names of its contributors may
# be used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED Paul C. Buetow ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT Paul C. Buetow BE LIABLE FOR ANY DIRECT,
# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
package UNIVERSAL;
use strict;
use warnings;
sub new ($;) {
my $self = shift;
bless {@_} => $self;
}
sub setval($$$) {
my UNIVERSAL $self = $_[0];
$self->{ $_[1] } = $_[2];
return undef;
}
sub getval($$) {
my UNIVERSAL $self = $_[0];
return defined $self->{ $_[1] } ? $self->{ $_[1] } : '';
}
sub exists($$) {
my UNIVERSAL $self = $_[0];
return exists $self->{ $_[1] } ? 1 : 0;
}
sub AUTOLOAD {
my UNIVERSAL $self = $_[0];
my $auto = our $AUTOLOAD;
return $self if $auto =~ /DESTROY/;
if ( $auto =~ /.*::set_(.+)$/ ) {
$self->{$1} = $_[1];
}
elsif ( $auto =~ /.*::get_(.+)_ref$/ ) {
return defined $self->{$1} ? \$self->{$1} : [''];
}
elsif ( $auto =~ /.*::get_(.+)$/ ) {
return defined $self->{$1} ? $self->{$1} : '';
}
elsif ( $auto =~ /.*::undef_(.+)$/ ) {
return '' unless defined $self->{$1};
my $retval = $self->{$1};
undef $self->{$1};
return $retval;
}
elsif ( $auto =~ /.*::append_(.+)$/ ) {
if ( defined $self->{$1} ) {
$self->{$1} .= $_[1];
}
else {
$self->{$1} = $_[1];
}
}
elsif ( $auto =~ /.*::push_(.+)$/ ) {
if ( exists $self->{$1} ) {
push @{ $self->{$1} }, $_[1];
}
else {
$self->{$1} = [ $_[1] ];
}
}
elsif ( $auto =~ /.*::first_(.+)$/ ) {
return exists $self->{$1} ? ${ $self->{$1} }[0] : '';
}
elsif ( $auto =~ /.*::(.+)_exists$/ ) {
return exists $self->{$1} ? 1 : 0;
}
elsif ( $auto =~ /.*::(.+)_length$/ ) {
return ( ref $self->{$1} eq 'ARRAY' ) ? scalar @{ $self->{$1} } : 0;
}
elsif ( $auto =~ /.*::(.+)_isset$/ ) {
return exists $self->{$1} ? $self->{ $_[0] } : 0;
}
else {
print "$auto is not a method of $self or UNIVERSAL\n";
}
return $self;
}
1;
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