The followings are typological errors I found on 03 draft and some
suggestions.
(1) The first part of the example in 3.1.4
"A1Hola" should be "=A1Hola".
Please note escaping "From " to "From=20" is not suitable to ISO 2022
family becase the "=" keyword is used in character sets encoded by ISO
2022.
(2) 3.2.1
If extensions defined RFC2184 are used, the "name" or "filename"
parameter may include a charset other than US-ASCII. Do you cover
this case?
(3) 3.4.2.2
The protocol parameter MUST be "application/pkcs7-signature". Note
that quotation marks are required around the protocol parameter
because MIME requires that the "/" character in the parameter value
MUST be quoted.
It's nice if you clarify that the value is case-insensitive.
(4) boundary issue
MIME's boundary includes a preceding <CR><LF>. I think examples of
3.1.4, 3.4.2.3, and 3.4.2.4 need one more null line before the last
boundaries.
For instance,
ghyHhHUujhJhjH77n8HHGTrfvbnj756tbB9HG4VQpfyF467GhIGfHfYT6
4VQpfyF467GhIGfHfYT6jH77n8HHGghyHhHUujhJh756tbB9HGTrfvbnj
n8HHGTrfvhJhjH776tbB9HG4VQbnj7567GhIGfHfYT6ghyHhHUujpfyF4
7GhIGfHfYT64VQbnj756
--boundary42--
SHOULD be
ghyHhHUujhJhjH77n8HHGTrfvbnj756tbB9HG4VQpfyF467GhIGfHfYT6
4VQpfyF467GhIGfHfYT6jH77n8HHGghyHhHUujhJh756tbB9HGTrfvbnj
n8HHGTrfvhJhjH776tbB9HG4VQbnj7567GhIGfHfYT6ghyHhHUujpfyF4
7GhIGfHfYT64VQbnj756
--boundary42--
(5) References
The [RC2] line contains one 8bit character.
--Kazu