[NNTP] Article Numbers Becoming Invalid (RFC 3977)
julien at trigofacile.com
Thu Jan 14 14:35:26 PST 2010
> Oh! Okay. Then I think you've convinced me your wording is the best,
> since we're reusing an existing term.
I have since found out something better because my wording was unclear when
the current article number is valid and the newsgroup empty (after GROUP
If the current article number is already lower or equal to the lowest
existing article number (if any) in the newsgroup, a 422 response MUST
LAST defines the notion of "previous article":
If the currently selected newsgroup is valid, the current article
number MUST be set to the previous article in that newsgroup (that
is, the highest existing article number less than the current article
number). If successful, a response indicating the new current
article number and the message-id of that article MUST be returned.
No article text is sent in response to this command.
So the new suggested wording is:
If the currently selected newsgroup is invalid, a 412 response MUST
be returned. If the currently selected newsgroup is valid but the
current article number is invalid, a 420 response MUST be returned.
If the current article number is valid and there is no previous article
in the currently selected newsgroup, a 422 response MUST be returned.
In all three cases, the currently selected newsgroup and current article
number MUST NOT be altered.
We take everything into account, and in the right order for 412/420/422.
(Just suggested as an erratum.)
« Un dictionnaire est comme une montre ; il vaut mieux en avoir un
que pas du tout, mais le meilleur n'est jamais tout à fait exact. »
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