ietf-nntp HDR

[Clive D.W. Feather]

Nothing fatal, but I have some minor points with the HDR command.

* Do we really want the label extension to be PAT ?

* Is it supposed to have one argument or two ? The syntax says one, the
text implies two.

* The text "See RFC-1036 for a list of valid header lines" remains
confusing. Are we saying:
  - the header must be one listed explicitly in RFC 1036, or
  - 1036 gives examples of headers you might want to use
?

* Must the command work for any header, or can the server reject some
headers on the grounds that it doesn't store them in its internal database ?
If the latter:
- we should say so and note that 503 will be used for unrecognised
  headers;
- are there any headers that must always be supported (e.g. Subject) ?

* I don't get the fifth example. Do I have to select a group before using
HDR with an article-ID ? If so, which group ? Any group, or must it be one
that's mentioned in its Newsgroups line ? This isn't described anywhere in
the main text. If the right group has to be selected, then I suggest we
need an additional response (and example):

    413  Article not in this newsgroup

-- 
Clive D.W. Feather  | Work:  <clive at demon.net>   | Tel:  +44 20 8371 1138
Internet Expert     | Home:  <clive at davros.org>  | Fax:  +44 20 8371 1037
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