ietf-822
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Re: New-ish idea on non-ascii headers

1991-09-19 10:57:43
On Thu, 19 Sep 91 10:57:46 -0400, Greg Vaudreuil wrote:
I propose the following for the next interim-revision of the
document...

1) Prohibit nested encodings

Wrong scoping level.

Prohibit encodings on types MESSAGE and MULTIPART, which has as a side effect
a prohibition of nested encodings.

State specificially that header/envelope information is in 7-BIT USASCII.

This also implies:

Prohibit character sets other than USASCII on types MESSAGE and MULTIPART.
Contents of MESSAGE and MULTIPART contents may have other character sets
according to character set qualifiers in lower-level types or through USASCII-
safe means to carry through such concepts in headers (e.g. something like the
mnemonic proposal).