voku / swiftmailer

            $need = $this->_charReader->validateByteSequence($c, $size);

            if ($need > 0) {

                $bytes = $os->read($need);

                if (false !== $bytes) {

                    $len = strlen($bytes);

                    for ($i = 0; $i < $len; ++$i) {

                        $c[] = self::$_byteMap[$bytes[$i]];

                    }

                }

            }

            $this->_array[] = $c;

    {

        if (!feof($fp)) {

            $bytes = fread($fp, $len);

            if ($bytes !== false) {

                $buf = array();

                $len = strlen($bytes);

                for ($i = 0; $i < $len; ++$i) {

                    $buf[] = self::$_byteMap[$bytes[$i]];

                }

                return $buf;

            }

        }

        return false;