/**
* Parse parameters, and update the ParserOutput with data from the
* RecurringEvents object
*
* @since 1.9
*
* @param ArrayFormatter $parameters
*
* @return string|null
*/
public function parse(ArrayFormatter $parameters)
{
$this->setFirstElementForPropertyLabel(true);
// Get recurring events
$this->events = new RecurringEvents($parameters->toArray(), $this->settings);
$this->messageFormatter->addFromArray($this->events->getErrors());
foreach ($this->events->getDates() as $date_str) {
// Override existing parameters array with the returned
// pre-processed parameters array from recurring events
$parameters->setParameters($this->events->getParameters());
// Add the date string as individual property / value parameter
$parameters->addParameter($this->events->getProperty(), $date_str);
// @see SubobjectParserFunction::addDataValuesToSubobject
// Each new $parameters set will add an additional subobject
// to the instance
$this->addDataValuesToSubobject($parameters);
$this->parserData->getSemanticData()->addSubobject($this->subobject);
// Collect errors that occurred during processing
$this->messageFormatter->addFromArray($this->subobject->getErrors());
}
// Update ParserOutput
$this->parserData->pushSemanticDataToParserOutput();
return $this->messageFormatter->getHtml();
}