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Re: Mail mode and message mode hooks
From: |
Chong Yidong |
Subject: |
Re: Mail mode and message mode hooks |
Date: |
Sun, 06 Dec 2009 18:10:18 -0500 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/23.1.50 (gnu/linux) |
"Davis Herring" <address@hidden> writes:
>> I am also a supporter of message-mode. But a user moving from Emacs
>> 23.1 to Emacs 23.2---a minor version upgrade!---should not experience
>> breakage. And as the feedmail example shows, there is at least one
>> not-unreasonable setup that currently does break.
>
> Does my suggestion not help here? The merge of hook values could even
> check for functions registered on each. Even if the user loads both (so
> the merge and defvaralias have already happened) and then tries to add the
> same function to each, she will only get one copy.
It's workable, but not very elegant.
Another idea I had is to change compose-mail to check for hook
duplication, and pop up a warning window telling the user that the
default mail-user-agent has changed.