GNU bug report logs - #79253
Add timestamps to *Messages*

Previous Next

Full log

Message #20 received at 79253 <at> debbugs.gnu.org (full text, mbox):

From: "R. Diez" <rdiez-2006 <at> rd10.de>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 79253 <at> debbugs.gnu.org
Subject: Re: bug#79253: Add timestamps to *Messages*
Date: Sat, 16 Aug 2025 23:01:50 +0200

>> Could you implement an easy way to add timestamps to the *Messages* buffer?
> 
> Did you try using set-message-function to install your function as the
> one that adds a time stamp to the text of the message to be shown?  If
> you tried, and it didn't work, please tell what didn't work.  If you
> didn't try, please do.

First of all, thanks for the hint. The 'message' function does not mention 'set-message-function' or the like, so I missed it.

I could find very little information about 'set-message-function', and no examples whatsoever, so I came up with this:

(defun my-message-function (msg)
  "" ; No docstring yet.
  (concat "Test: " msg))

(setq set-message-function #'my-message-function)

The effect is that messages in the minibuffer do get the "Test:" prefix, but messages in the *Messages* buffer do not.

But that is exactly the opposite of what I am trying to achieve!

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.