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Re: Message queue for Emacs?


From: Eric Abrahamsen
Subject: Re: Message queue for Emacs?
Date: Sun, 23 Apr 2017 14:21:17 -0700
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/26.0.50 (gnu/linux)

Drew Adams <address@hidden> writes:

>> >> a lot of Emacs commands send a (message "...") for a user in the echo
>> >> area.  Now imagine a command that sends more than of them (not unlikely
>> >> e.g. if there are a few hooks, each printing a message).  Of course,
>> >> only the last one is then visible.  Is there any way for the next
>> >> message to be printed with some delay, so that the previous one is
>> >> still visible, say, for a second or two?
>> >>
>> >> I know about C-h e (view-echo-area-messages), but this is not what I'm
>> >> after.
>> >
>> > See `sit-for' and `sleep-for'.
>> 
>> The disadvantage of that is that it would be blocking.
>
> Not `sit-for'.
>
>> It could be
>> interesting if Emacs just piled up messages and displayed them one per
>> second, without blocking whatever comes next.
>
> (message "A") (sit-for 1.0) (message "B") (sit-for 1.0) ...
> (message "Z")

No kidding! I never knew that -- I guess I've never tried to use it.

>> If whatever comes next waits for user input in the minibuffer,
>> hitting any key would cancel/flush the rest of the queue.
>
> Again, `sit-for' does that, and regardless of whether input is
> to the minibuffer.  Any user event cancels and flushes.
>
>> I can imagine all kinds of things going wrong, but it could be fun.
>
> It's unclear just what the OP is asking for (or why).

Beat me, too. My guess was that he wanted this to be the default
behavior for message. But I really don't know.

Thanks for the tip,
Eric




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