'list' => array(
		'type' => TT_CALLBACK, 'args' => 1,
		'func' => function($arg) {
			$bullets = array(
			  'o' => 'circle', 'O' => 'circle', '0' => 'circle',
			  '*' => 'disc',   '@' => 'disc',
			  '+' => 'square', 'x' => 'square', '#' => 'square'
			);
			$points = preg_split('/\[([oO0*@+x])\]/', $arg, -1, PREG_SPLIT_DELIM_CAPTURE);
			if (count($points) < 3)
				$type = 'disc';
			else
				$type = $bullets[$points[1]];
			
			$res = "<ul type=\"$type\">";
			for ($i = (trim($points[0]) == false? 2 : 0); $i < count($points); $i += 2)
				$res .= '<li>' . $points[$i] . '</li>';
			$res .= '</ul>';
			return $res;
		}
	),