/**
* @param mixed $iswc
*
* @return bool
*/
public static function validate($iswc)
{
if (!(bool) preg_match('/^\\s*T[\\-.]?(\\d)(\\d)(\\d)[\\-.]?(\\d)(\\d)(\\d)[\\-.]?(\\d)(\\d)(\\d)[\\-.]?(\\d)\\s*$/i', $iswc)) {
return false;
}
$hyphens = ['‐', '-', '.'];
$iswc = parent::unDecorate($iswc, $hyphens);
$sum = 1;
for ($i = 1; $i <= 9; ++$i) {
$sum = $sum + $i * (int) $iswc[$i];
}
$rem = $sum % 10;
if ($rem !== 0) {
$rem = 10 - $rem;
}
return (int) $iswc[10] === $rem;
}
/**
* {@inheritdoc}
*/
public static function unDecorate($gtin, $hyphens = self::HYPHENS)
{
return parent::unDecorate($gtin, $hyphens);
}
