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From: Kai.Grossjohann@CS.Uni-Dortmund.DE (Kai =?iso-8859-1?q?Gro=DFjohann?=)
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Subject: Re: what's available in fancy-split functions?
Date: 26 Apr 2001 08:20:53 +0200
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On 25 Apr 2001, Josh Huber wrote:

> I can't seem to find any documentation mentioning what kind of data
> is available to a function called with a fancy-split rule.

Note the following paragraph in the documentation for
nnmail-split-methods:

/----
| The second element can also be a function.  In that case, it will be
| called narrowed to the headers with the first element of the rule as
| the argument.  It should return a non-nil value if it thinks that the
| mail belongs in that group.
\----

Sadly, it's not made explicit that this also applies to
nnmail-split-fancy.

But the documentation for nnmail-split-fancy (the variable) does
mention that functions called via `:' are called ``in a buffer
containing the message headers''.

> I'd like to do some special sorting on incoming messages, with the
> form like:
> 
> (: my-gnus-filter "mail.junk")
> 
> I'm passing in the group which will be returned in certain cases.
> 
> Does my function have access to the whole message?
> 
> can I:
> 
> (save-restriction
>   (widen)
>   ...

Yes, this has been suggested a couple of weeks ago.

> I guess on the same topic, does gnus have functions for extracting
> particular headers from a message for use in custom user functions?

message-fetch-field?

kai
-- 
The passive voice should never be used.