/**
* @param string $sFileString
*
* @return array
*/
private function fileStringToCollection($sFileString)
{
$aResult = array();
if (!empty($sFileString) && false !== \strpos($sFileString, 'RAINLOOP:SIEVE')) {
$aMatch = array();
if (\preg_match_all('/BEGIN:FILTER(.+?)BEGIN:HEADER(.+?)END:HEADER/s', $sFileString, $aMatch) && isset($aMatch[2]) && \is_array($aMatch[2])) {
foreach ($aMatch[2] as $sEncodedLine) {
if (!empty($sEncodedLine)) {
$sDecodedLine = \base64_decode(\preg_replace('/[\\s]+/', '', $sEncodedLine));
if (!empty($sDecodedLine)) {
$oItem = new \RainLoop\Providers\Filters\Classes\Filter();
if ($oItem && $oItem->unserializeFromJson($sDecodedLine)) {
$aResult[] = $oItem;
}
}
}
}
}
}
return $aResult;
}
