John C Klensin wrote:
> LWSP AtLeastOneRequiredThing CRLF
> or
> [ LWSP optional-stuff ] CRLF
> I don't see either of the latter as problematic.
Depends on the protocol. Your constructs match
SP CRLF SP CRLF SP AtLeastOneRequiredThing CRLF
SP CRLF SP CRLF SP optional-stuff CRLF
.........^^^^^^^^^^^^
If you do this e.g. in a mail or HHTP header, where
CRLF CRLF means "end of header", then any tool like
a text editor or other UA trying to reuse the header
field "as is" while silently removing trailing white
space would end up with
CRLF CRLF SP AtLeastOneRequiredThing CRLF
CRLF CRLF SP optional-stuff CRLF
......^^^^^^^^^
Frank
_______________________________________________
Ietf@xxxxxxxx
https://www1.ietf.org/mailman/listinfo/ietf