public static final function fromCronString($cronSpec = '* * * * * *', $language = 'en')
{
// Split input liberal. Single or multiple Spaces, Tabs and Newlines are all allowed as separators.
if (count($elements = preg_split('/\\s+/', $cronSpec)) < 5) {
throw new Exception('Invalid specification.');
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Named ranges in cron entries
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
$arrMonths = array('JAN' => 1, 'FEB' => 2, 'MAR' => 3, 'APR' => 4, 'MAY' => 5, 'JUN' => 6, 'JUL' => 7, 'AUG' => 8, 'SEP' => 9, 'OCT' => 10, 'NOV' => 11, 'DEC' => 12);
$arrDaysOfWeek = array('SUN' => 0, 'MON' => 1, 'TUE' => 2, 'WED' => 3, 'THU' => 4, 'FRI' => 5, 'SAT' => 6);
// Translate the cron specification into arrays that hold specifications of the actual dates
$newCron = new Ot_Cron_Schedule($language);
$newCron->_cronMinutes = $newCron->cronInterpret($elements[0], 0, 59, array(), 'minutes');
$newCron->_cronHours = $newCron->cronInterpret($elements[1], 0, 23, array(), 'hours');
$newCron->_cronDaysOfMonth = $newCron->cronInterpret($elements[2], 1, 31, array(), 'daysOfMonth');
$newCron->_cronMonths = $newCron->cronInterpret($elements[3], 1, 12, $arrMonths, 'months');
$newCron->_cronDaysOfWeek = $newCron->cronInterpret($elements[4], 0, 6, $arrDaysOfWeek, 'daysOfWeek');
$newCron->_cronYears = $newCron->cronInterpret($elements[5], $newCron->RANGE_YEARS_MIN, $newCron->RANGE_YEARS_MAX, array(), 'years');
$newCron->_minutes = $newCron->cronCreateItems($newCron->_cronMinutes);
$newCron->_hours = $newCron->cronCreateItems($newCron->_cronHours);
$newCron->_daysOfMonth = $newCron->cronCreateItems($newCron->_cronDaysOfMonth);
$newCron->_months = $newCron->cronCreateItems($newCron->_cronMonths);
$newCron->_daysOfWeek = $newCron->cronCreateItems($newCron->_cronDaysOfWeek);
$newCron->_years = $newCron->cronCreateItems($newCron->_cronYears);
return $newCron;
}
