/**
* Strips the IDD from the start of the number if present. Helper function used by
* maybeStripInternationalPrefixAndNormalize.
* @param string $iddPattern
* @param string $number
* @return bool
*/
private function parsePrefixAsIdd($iddPattern, &$number)
{
$m = new Matcher($iddPattern, $number);
if ($m->lookingAt()) {
$matchEnd = $m->end();
// Only strip this if the first digit after the match is not a 0, since country calling codes
// cannot begin with 0.
$digitMatcher = new Matcher(self::$CAPTURING_DIGIT_PATTERN, substr($number, $matchEnd));
if ($digitMatcher->find()) {
$normalizedGroup = $this->normalizeDigitsOnly($digitMatcher->group(1));
if ($normalizedGroup == "0") {
return false;
}
}
$number = substr($number, $matchEnd);
return true;
}
return false;
}
