/**
* Split the sequence string at an approximate length.
*
* @since 2.7.0
*
* @param integer $length Length to split.
*
* @return array A list containing individual sequence strings.
*/
public function split($length)
{
$id = new Horde_Stream_Temp();
$id->add($this->tostring_sort, true);
$out = array();
do {
$out[] = $id->substring(0, $length) . $id->getToChar(',');
} while (!$id->eof());
return $out;
}
/**
*/
public function substring($start = 0, $length = null, $char = false)
{
return $this->_string ? $this->_string->substring($start, $length, $char) : parent::substring($start, $length, $char);
}