The default is to save a sequence of "Set-Cookie3" lines.
"Set-Cookie3" is a proprietary LWP format, not known to be compatible
with any browser.  The I<HTTP::Cookies::Netscape> sub-class can
be used to save in a format compatible with Netscape.

=item $cookie_jar->load

=item $cookie_jar->load( $file )

This method reads the cookies from the file and adds them to the
$cookie_jar.  The file must be in the format written by the save()
method.

=item $cookie_jar->revert

This method empties the $cookie_jar and re-loads the $cookie_jar
from the last save file.

=item $cookie_jar->clear

=item $cookie_jar->clear( $domain )

=item $cookie_jar->clear( $domain, $path )

=item $cookie_jar->clear( $domain, $path, $key )

Invoking this method without arguments will empty the whole
$cookie_jar.  If given a single argument only cookies belonging to
that domain will be removed.  If given two arguments, cookies
belonging to the specified path within that domain are removed.  If
given three arguments, then the cookie with the specified key, path
and domain is removed.

=item $cookie_jar->clear_temporary_cookies

Discard all temporary cookies. Scans for all cookies in the jar
with either no expire field or a true C<discard> flag. To be
called when the user agent shuts down according to RFC 2965.

=item $cookie_jar->scan( \&callback )

The argument is a subroutine that will be invoked for each cookie
stored in the $cookie_jar.  The subroutine will be invoked with
the following arguments:

  0  version
  1  key
  2  val
  3  path
  4  domain
  5  port
  6  path_spec
  7  secure
  8  expires
  9  discard
 10  hash

=item $cookie_jar->as_string

=item $cookie_jar->as_string( $skip_discardables )

The as_string() method will return the state of the $cookie_jar
represented as a sequence of "Set-Cookie3" header lines separated by
"\n".  If $skip_discardables is TRUE, it will not return lines for
cookies with the I<Discard> attribute.

=back

=head1 SEE ALSO

L<HTTP::Cookies::Netscape>, L<HTTP::Cookies::Microsoft>

=head1 COPYRIGHT

Copyright 1997-2002 Gisle Aas

This library is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.