Cat modified update

I've a problem with the cat modifier

I would to append a string only if the "main" string is not empty...

{$string|cat:" - "} don't work then I modified  the plugin link as
following....

some comments?


<?php
/**
* Smarty plugin
* @package Smarty
* @subpackage plugins
*/


/**
* Smarty cat modifier plugin
*
* Type:     modifier<br>
* Name:     cat<br>
* Date:     Feb 24, 2003
* Purpose:  catenate a value to a variable
* Input:    string to catenate
* Example:  {$var|cat:"foo"}
* @link http://smarty.php.net/manual/en/lan...odifier.cat.php cat
*          (Smarty online manual)
* @author   Monte Ohrt <monte at ohrt dot com>
* @version 1.0
* @param string
* @param string
* @return string
*/
function smarty_modifier_cat($string, $cat, $if_empty_nothing = false)
{
if($if_empty_nothing && $string == "")
return "";
else
return $string.$cat;
}

/* vim: set expandtab: */

?>