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Re: rmail-message-filter

From: Stefan Monnier
Subject: Re: rmail-message-filter
Date: Wed, 04 Mar 2009 18:29:00 -0500
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.91 (gnu/linux)

> i) I don't see that this offers anything that rmail-show-message-hook
> does not.

Compatibility with previous code that used rmail-message-filter (and
which did that because back then rmail-message-filter and
rmail-show-message-hook were not called at the same moment).

> ii) This is not exactly the same as the old behaviour, since
> previously pruning was not necessarily done every time a message was
> shown (if the previous time it was shown it was pruned).

> To recreate the "before obeying `rmail-ignored-headers'" part would
> require something like the following. But it seems dangerous to me to
> mess about with the real rmail buffer rather than the "view" copy.

It needs to work on a copy, indeed.


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