/**
* Return year, month or day from date
*
* @param integer $position
*/
private function getYearMonthDay($position)
{
$word = $this->queryManager->words[$position]['word'];
if (preg_match('/^\\d{4}$/i', $word)) {
return array('year' => $word);
}
$month = $this->queryManager->dictionary->get(RestoDictionary::MONTH, $word);
if (isset($month)) {
return array('month' => $month);
}
$number = $this->queryManager->dictionary->getNumber($word);
if (is_numeric($number)) {
$day = intval($number);
if ($day > 0 && $day < 31) {
return array('day' => $day < 10 ? '0' . $day : $day);
}
}
/*
* ISO8601 date
*/
if (RestoUtil::isISO8601($word)) {
return $this->iso8601ToDate($word);
}
return null;
}