public function scoreString($item)
{
$scored = 0;
$score = '';
$index = 0;
$length = strlen($item);
while ($scored < 7) {
$c = $index < $length ? $this->getCharacterScore($item[$index++]) : '00';
if ($c === null) {
continue;
}
$score .= $c;
if (++$scored == 4) {
$score .= '.';
}
}
return $this->scoreNumber($score);
}