static function getAttachFormatRegex()
{
if (substr(FSS_Input::GetCmd('view'), 0, 5) == "admin") {
$formats = trim(FSS_Settings::get('support_attach_types_admins'));
} else {
$formats = trim(FSS_Settings::get('support_attach_types'));
}
if (substr($formats, 0, 1) == "/") {
return $formats;
}
$parsed = array();
if ($formats != "") {
$formats = explode(",", $formats);
foreach ($formats as $fm) {
$fm = trim($fm);
if (!$fm) {
continue;
}
$parsed[] = $fm;
}
}
if (count($parsed) > 0) {
return "/.(" . implode("|", $parsed) . ")\$/i";
}
return "null";
}