public static function setLeadingDigitsPatterns(\DOMElement $numberFormatElement, NumberFormat $format)
{
$leadingDigitsPatternNodes = $numberFormatElement->getElementsByTagName(self::LEADING_DIGITS);
$numOfLeadingDigitsPatterns = $leadingDigitsPatternNodes->length;
if ($numOfLeadingDigitsPatterns > 0) {
for ($i = 0; $i < $numOfLeadingDigitsPatterns; $i++) {
$elt = $leadingDigitsPatternNodes->item($i);
$format->addLeadingDigitsPattern($elt->firstChild->nodeValue, true);
}
}
}