Hannesalm / EventCalendar

        ksort($this->lines, SORT_NUMERIC);

        // Now, check if we need to operate on a lower structure

        if (!empty($attr)) {

            $struct = $struct->getChild(HTMLPurifier_ErrorStruct::ATTR, $attr);

            if (!$struct->value) {

                $struct->value = array($attr, 'PUT VALUE HERE');

            }

        }

        if (!empty($cssprop)) {

            $struct = $struct->getChild(HTMLPurifier_ErrorStruct::CSSPROP, $cssprop);

            if (!$struct->value) {

                $struct->value = array($attr, 'PUT VALUE HERE');

            }

        }

        if (!empty($cssprop)) {

            $struct = $struct->getChild(HTMLPurifier_ErrorStruct::CSSPROP, $cssprop);

            if (!$struct->value) {

                // if we tokenize CSS this might be a little more difficult to do

                $struct->value = array($cssprop, 'PUT VALUE HERE');

            }

        }

        // Ok, structs are all setup, now time to register the error

        $struct->addError($severity, $msg);