Document Groups
---------------

   `nndoc' is a cute little thing that will let you read a single file
as a newsgroup.  Several files types are supported:

`babyl'
     The babyl (rmail) mail box.

`mbox'
     The standard Unix mbox file.

`mmdf'
     The MMDF mail box format.

`news'
     Several news articles appended into a file.

`rnews'
     The rnews batch transport format.

`forward'
     Forwarded articles.

`mime-digest'
     MIME (RFC 1341) digest format.

`standard-digest'
     The standard (RFC 1153) digest format.

`slack-digest'
     Non-standard digest format--matches most things, but does it badly.

   You can also use the special "file type" `guess', which means that
`nndoc' will try to guess what file type it is looking at.  `digest'
means that `nndoc' should guess what digest type the file is.

   `nndoc' will not try to change the file or insert any extra headers
into it--it will simply, like, let you use the file as the basis for a
group.  And that's it.

   If you have some old archived articles that you want to insert into
your new & spiffy Gnus mail backend, `nndoc' can probably help you with
that.  Say you have an old `RMAIL' file with mail that you now want to
split into your new `nnml' groups.  You look at that file using
`nndoc', set the process mark on all the articles in the buffer (`M P
b', for instance), and then re-spool (`B r') using `nnml'.  If all goes
well, all the mail in the `RMAIL' file is now also stored in lots of
`nnml' directories, and you can delete that pesky `RMAIL' file.  If you
have the guts!

   Virtual server variables:

`nndoc-article-type'
     This should be one of `mbox', `babyl', `digest', `mmdf',
     `forward', `news', `rnews', `mime-digest', `clari-briefs', or
     `guess'.

`nndoc-post-type'
     This variable says whether Gnus is to consider the group a news
     group or a mail group.  There are two legal values:  `mail' (the
     default) and `news'.