From: Emanuel Berg <embe8573@student.uu.se>
To: help-gnu-emacs@gnu.org
Subject: Re: if and only if an Error message
Date: Sat, 19 Jul 2014 13:48:53 +0200 [thread overview]
Message-ID: <87lhrpd0wq.fsf@debian.uxu> (raw)
In-Reply-To: mailman.5660.1405749012.1147.help-gnu-emacs@gnu.org
Michael Heerdegen <michael_heerdegen@web.de> writes:
> It's not harmful. But it's not a user option, so if
> you set its value, you should know what you are doing
> and how the flag is used internally.
If I had to know what I'm doing nothing would ever be
done. Even more so, if I know it, then why do it...
But put it this way: how do I find out a variable isn't
a user option?
> I would start trying something like this ...
Thank you!
Yes, check this out -
(setq error-buffer-name "*Errors*")
;; inhibit the debugger -
;; try this if nothing else: a wonderful thing to not
;; have it hop out over half the screen for something
;; that can be communicated in a few words
(setq debug-on-error nil)
(setq eval-expression-debug-on-error nil)
;; this does three things, see the comments
(defun say-and-log-error (data _ fun)
(let*((error-str (format "%S in %S" data fun))
(error-buffer (get-buffer-create error-buffer-name))
(error-win (get-buffer-window error-buffer)) )
(message error-str) ; echo the error message
(with-current-buffer error-buffer
(goto-char (point-max))
(insert error-str "\n") ) ; log it
(if error-win
(with-selected-window error-win ; move focus of error window
(goto-char (point-max)) ; if available
(recenter -1)) ))) ; (is there a better way?)
;; use it instead of the default one
(setq command-error-function
(lambda (&rest args)
(apply #'say-and-log-error args)) )
;; show the error buffer
(defun show-errors ()
(interactive)
(switch-to-buffer (get-buffer-create error-buffer-name))
(goto-char (point-max)) ; the same situation: the last line of data
(recenter -1) ) ; should be on the last window line
; whenever possible
; test here:
; (message 'error-as-not-string)
--
underground experts united
next prev parent reply other threads:[~2014-07-19 11:48 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-18 22:21 Emacs hangs with 100pc CPU during query-replace Thorsten Jolitz
2014-07-19 0:30 ` Michael Heerdegen
[not found] ` <mailman.5641.1405730121.1147.help-gnu-emacs@gnu.org>
2014-07-19 1:16 ` Emanuel Berg
2014-07-19 1:36 ` Michael Heerdegen
2014-07-19 1:41 ` Michael Heerdegen
[not found] ` <mailman.5647.1405734322.1147.help-gnu-emacs@gnu.org>
2014-07-19 1:57 ` Emanuel Berg
2014-07-19 3:42 ` if and only if an Error message (was: Re: Emacs hangs with 100pc CPU during query-replace) Emanuel Berg
2014-07-19 4:00 ` if and only if an Error message Michael Heerdegen
[not found] ` <mailman.5654.1405742487.1147.help-gnu-emacs@gnu.org>
2014-07-19 4:10 ` Emanuel Berg
2014-07-19 4:38 ` Michael Heerdegen
[not found] ` <mailman.5655.1405744730.1147.help-gnu-emacs@gnu.org>
2014-07-19 4:49 ` Emanuel Berg
2014-07-19 5:05 ` Michael Heerdegen
2014-07-19 5:11 ` Michael Heerdegen
[not found] ` <mailman.5656.1405746345.1147.help-gnu-emacs@gnu.org>
2014-07-19 5:12 ` Emanuel Berg
2014-07-19 5:49 ` Michael Heerdegen
2014-07-19 6:01 ` Michael Heerdegen
[not found] ` <mailman.5660.1405749012.1147.help-gnu-emacs@gnu.org>
2014-07-19 11:48 ` Emanuel Berg [this message]
2014-07-19 17:55 ` Drew Adams
2014-07-20 1:42 ` Michael Heerdegen
[not found] ` <mailman.5724.1405820570.1147.help-gnu-emacs@gnu.org>
2014-07-20 21:38 ` Emanuel Berg
2014-07-21 8:51 ` Michael Heerdegen
[not found] ` <mailman.5803.1405932728.1147.help-gnu-emacs@gnu.org>
2014-07-21 14:12 ` Emanuel Berg
2014-07-20 22:48 ` avoiding global variables (was: Re: if and only if an Error message) Emanuel Berg
2014-07-21 5:01 ` avoiding global variables Thien-Thi Nguyen
[not found] ` <mailman.5793.1405918685.1147.help-gnu-emacs@gnu.org>
2014-07-21 14:10 ` Emanuel Berg
[not found] ` <mailman.5645.1405733824.1147.help-gnu-emacs@gnu.org>
2014-07-19 1:52 ` Emacs hangs with 100pc CPU during query-replace Emanuel Berg
2014-07-19 8:02 ` Thorsten Jolitz
2014-07-19 8:18 ` Eli Zaretskii
2014-07-19 8:27 ` Michael Heerdegen
2014-07-19 8:49 ` Thorsten Jolitz
2014-07-19 9:06 ` Thorsten Jolitz
2014-07-19 10:27 ` Eli Zaretskii
2014-07-19 11:29 ` Thorsten Jolitz
2014-07-19 10:33 ` Eli Zaretskii
2014-07-19 11:30 ` Thorsten Jolitz
[not found] ` <<871tth1zw9.fsf@gmail.com>
[not found] ` <<83iomt63uf.fsf@gnu.org>
2014-07-19 17:51 ` Drew Adams
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