INTERNET-DRAFT Charles H. Lindsey
Usenet Format Working Group University of Manchester
July 2001
5.6.4. Delimiter Summary
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5.6.4. Delimiter Summary
A summary of the various delimiters. The name immediately to the left
of the delimiter is always that of the machine which added the
delimiter.
'/' The name immediately to the right is known to be the identity of
the machine from which the article was received (either because
the entry was made by that machine and we have verified it, or
because we have added it ourselves).
'?' The name immediately to the right is the claimed identity of the
machine from which the article was received, but we were unable
to verify it (and have prepended our own view of where it came
from, and then a '/').
'%' Everything to the right is the pre-injection region followed by
the tail-entry. The name on the left is the FQDN of the
injecting agent. The presence of two '%'s in a path indicates a
double-injection (see 8.2.2).
'!' The name immediately to the right is unverified. The presence of
a '!' to the left of the '%' indicates that the identity to the
left is that of an old-style system not conformant with this
standard.
',' Reserved for future use, treat as '/'.
Other
Old software may possibly use other delimiters, which should be
treated as '!'. But note in particular that ':', '-' and '_' are
components of names, not delimiters, and FWS on its own MUST NOT
be used as the sole delimiter.
NOTE: Old Netnews relaying and injecting programs almost all
delimit Path entries with the '!' delimiter, and these entries
are not verified. As such, the presence of '%' as a delimiter
will indicate that the article was injected by software
conforming to this standard, and the presence of '!' as a
delimiter to the left of a '%' will indicate that the message
passed through systems developed prior to this standard. It is
anticipated that relaying agents will reject articles in the old
style once this new standard has been widely adopted.
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Previous draft (04): 5.6.4. Delimiter Summary
Diffs to previous draft
--- {draft-04} Wed Jul 11 21:55:27 2001
+++ {draft-05} Wed Jul 11 21:55:27 2001
@@ -41,6 +41,3 @@
anticipated that relaying agents will reject articles in the old
style once this new standard has been widely adopted.
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