private function encodeChar(&$data, $encoding, $seq, $text, &$i, &$counter, &$indcheck) {
        if (isset($seq[$i + 1]) && $seq[$i + 1] === 'F') {
            // We have a flag !!
            if ($text[$counter + 1] === 'F') {
                $number = $text[$counter + 2];
                $fnc = $this->fnc[$encoding][$number - 1];
                $indcheck[] = $fnc;
                $data[] = $this->code[$fnc];

                // Skip F + number
                $counter += 2;
            } else {
                // Not supposed
            }

            $i++;
        } else {
            if ($encoding === 2) {
                // We take 2 numbers in the same time
                $code = (int)substr($text, $counter, 2);
                $indcheck[] = $code;
                $data[] = $this->code[$code];
                $counter++;
                $i++;
            } else {
                $keys = ($encoding === 0) ? $this->keysA : $this->keysB;
                $pos = strpos($keys, $text[$counter]);
                $indcheck[] = $pos;
                $data[] = $this->code[$pos];
            }
        }

        $counter++;
    }