(assert(string-equalqstr(formatnil"check of masked dot at last column 12345678901234567890123456789=~C~C..~C~C~C~CLAST LINE"#\Return#\Newline#\Return#\Newline#\Return#\Newline)))))
(let*((str(formatnil"Example using non-ASCII characters:~A - 74% : Erreur de protocole : la passerelle ne répond pas à la requête.~AYou won’t receive this!"#\Newline#\Newline))
(qstr(with-output-to-string(s)
(rfc2045-q-encode-string-to-stream
strs:external-format:utf-8:columns74))))
(assertqstr)
(assert(string-equalqstr(formatnil"Example using non-ASCII characters:~C~C - 74% : Erreur de protocole : la passerelle ne r=C3=A9pond pas =C3=A0 la requ=C3=AAte=~C~C..~C~CYou won=E2=80=99t receive this!"#\Return#\Newline#\Return#\Newline#\Return#\Newline)))))