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<?php
// {{{ license
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4 foldmethod=marker: */
//
// +----------------------------------------------------------------------+
// | This library is free software; you can redistribute it and/or modify |
// | it under the terms of the GNU Lesser General Public License as |
// | published by the Free Software Foundation; either version 2.1 of the |
// | License, or (at your option) any later version. |
// | |
// | This library 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 |
// | Lesser General Public License for more details. |
// | |
// | You should have received a copy of the GNU Lesser General Public |
// | License along with this library; if not, write to the Free Software |
// | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
// | USA. |
// +----------------------------------------------------------------------+
//
// }}}
/**
* Encode/decode Internationalized Domain Names.
* Factory class to get correct implementation either for php4 or php5.
*
* @author Markus Nix <mnix@docuverse.de>
* @author Matthias Sommerfeld <mso@phlylabs.de>
* @package Net
* @version $Id: IDNA.php 284681 2009-07-24 04:24:27Z clockwerx $
*/
class Net_IDNA
{
// {{{ factory
/**
* Attempts to return a concrete IDNA instance for either php4 or php5.
*
* @param array $params Set of paramaters
* @return object IDNA The newly created concrete Log instance, or an
* false on an error.
* @access public
*/
function getInstance($params = array())
{
$version = explode( '.', phpversion() );
$handler = ((int)$version[0] > 4) ? 'php5' : 'php4';
$class = 'Net_IDNA_' . $handler;
$classfile = 'Net/IDNA/' . $handler . '.php';
/*
* Attempt to include our version of the named class, but don't treat
* a failure as fatal. The caller may have already included their own
* version of the named class.
*/
@include_once $classfile;
/* If the class exists, return a new instance of it. */
if (class_exists($class)) {
return new $class($params);
}
return false;
}
// }}}
// {{{ singleton
/**
* Attempts to return a concrete IDNA instance for either php4 or php5,
* only creating a new instance if no IDNA instance with the same
* parameters currently exists.
*
* @param array $params Set of paramaters
* @return object IDNA The newly created concrete Log instance, or an
* false on an error.
* @access public
*/
function singleton($params = array())
{
static $instances;
if (!isset($instances)) {
$instances = array();
}
$signature = serialize($params);
if (!isset($instances[$signature])) {
$instances[$signature] = Net_IDNA::getInstance($params);
}
return $instances[$signature];
}
// }}}
}
?>
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