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bug#12704: 24.2.50; QuitError during redisplay: (eval (\` ((-3 (\, (prop
From: |
Eli Zaretskii |
Subject: |
bug#12704: 24.2.50; QuitError during redisplay: (eval (\` ((-3 (\, (propertize "%p" ... |
Date: |
Mon, 22 Oct 2012 22:13:14 +0200 |
> From: "Drew Adams" <drew.adams@oracle.com>
> Cc: <12704@debbugs.gnu.org>
> Date: Mon, 22 Oct 2012 10:56:59 -0700
>
> > Can you try guessing which part of the expression could have barfed?
>
> No. This is the expression that was passed to `eval', and it is eval'd all of
> the time during redisplay, with no problem:
>
> `((-3 ,(propertize
> "%p" 'local-map mode-line-column-line-number-mode-map
> 'mouse-face 'mode-line-highlight
> 'help-echo "Buffer position, mouse-1: Line/col menu"))
> (size-indication-mode
> (8 ,(propertize
> (if (and transient-mark-mode mark-active)
> (apply #'format (mapcar #'eval mode linepos-style))
> " of %I") 'face (and transient-mark-mode mark-active
> 'modelinepos-region)
> 'local-map mode-line-column-line-number-mode-map
> 'mouse-face 'mode-line-highlight
> 'help-echo "Buffer position, mouse-1: Line/col menu")))
> (line-number-mode
> ((column-number-mode
> (10 ,(propertize
> " (%l,%c)"
> 'face (and (> (current-column)
> modelinepos-column-limit)
> modelinepos-column-warning)
> 'local-map mode-line-column-line-number-mode-map
> 'mouse-face 'mode-line-highlight
> 'help-echo "Line and column, mouse-1: Line/col menu"))
> (6 ,(propertize
> " L%l" 'local-map mode-line-column-line-number-mode-map
> 'mouse-face 'mode-line-highlight
> 'help-echo "Line number, mouse-1: Line/col menu"))))
> ((column-number-mode
> (5 ,(propertize
> " C%c" 'face (and (> (current-column)
> modelinepos-column-limit)
> 'modelinepos-column-warning)
> 'local-map mode-line-column-line-number-mode-map
> 'mouse-face 'mode-line-highlight
> 'help-echo "Column number, mouse-1: Line/col menu"))))))
>
> Do you see anything problematic in that sexp? I don't.
If you have size-indication-mode turned on, I'd look at the mapcar
part, like Stefan suggests.
> I got the (mistaken?) impression that this message was printed out
> because of a user quit during redisplay.
It could be the case, but then it's a bug somewhere, as redisplay
generally disables quitting.
> Are you sure that the cause was not C-g?
No.
> Why print "signaled (quit)" if there was no quit signal?
Quit signal can be generated by something that is not C-g. It could
come from evaluating a menu item, for example, or from a canceled
menu.
> Or is that supposed to mean (a) an error was signalled (not a quit)
> and so (b) redisplay then quit?
No, it really means that some Lisp form signaled quit, or C-g was
pressed while a Lisp form was evaluated without inhibiting quitting.
> > > Is there an option that controls whether to print such messages?
> >
> > Print where?
>
> To *Messages*.
They are always printed to *Messages*, as redisplay has no other ways
of recording these errors that don't re-enter redisplay.
> I understand that such a message would be printed for a real
> (display) error. What seemed odd was that it would be done for C-g
> during redisplay. That's what I thought was happening.
It did. When redisplay needs to eval some Lisp, it does so in a way
that catches any signals thrown by that Lisp. When such a signal is
caught, the message you see is inserted into *Messages*.
The quit signal could come either from the eval'ed Lisp, or because
you typed C-g while inhibit-quit was not set, which will cause the
Lisp evaluation to be canceled by the quit signal.
- bug#12704: 24.2.50; QuitError during redisplay: (eval (\` ((-3 (\, (propertize "%p" ..., Drew Adams, 2012/10/22
- bug#12704: 24.2.50; QuitError during redisplay: (eval (\` ((-3 (\, (propertize "%p" ..., Eli Zaretskii, 2012/10/22
- bug#12704: 24.2.50; QuitError during redisplay: (eval (\` ((-3 (\, (propertize "%p" ..., Drew Adams, 2012/10/22
- bug#12704: 24.2.50; QuitError during redisplay: (eval (\` ((-3 (\, (propertize "%p" ..., Stefan Monnier, 2012/10/22
- bug#12704: 24.2.50; QuitError during redisplay: (eval (\` ((-3 (\, (propertize "%p" ..., Drew Adams, 2012/10/22
- bug#12704: 24.2.50; QuitError during redisplay: (eval (\` ((-3 (\, (propertize "%p" ..., Eli Zaretskii, 2012/10/22
- bug#12704: 24.2.50; QuitError during redisplay: (eval (\` ((-3 (\, (propertize "%p" ..., Drew Adams, 2012/10/31
- bug#12704: 24.2.50; QuitError during redisplay: (eval (\` ((-3 (\, (propertize "%p" ...,
Eli Zaretskii <=