thanks a ton! that did it 
package Email;
use overload '""'=> \&ADDRESS , fallback=> 1;

my     $RE_EMAIL= qr/^[\w\-\+\._]+\@[a-zA-Z0-9][-a-zA-Z0-9\.]*\.[a-zA-
+Z]+$/ ;

sub new {
    my  $proto= $_[0];
    my  $class= ref($proto) || $proto;
    my  $self= bless( {} ,  $class );
    $self->{ADDRESS}= undef;
    $self->ADDRESS( $_[1] );
    return $self;
}

sub ADDRESS {
    my $self= shift;
    if ( @_ ) { 
        my     $email= shift;
        $email=~ $RE_EMAIL or die "Not a valid email address";
        $self->{ADDRESS}= $email;
    }
    return $self->{ADDRESS};
}

sub _as_str {
    my  ( $self )= @_;
    return $self->ADDRESS;
    
}

[download]

In reply to Re^2: variables as classes by nmerriweather
in thread variables as classes by nmerriweather

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.