* bug#8549: 23.3; Undocumented setting of eval-expression-debug-on-error
@ 2011-04-25 13:23 Uday S Reddy
2011-07-15 13:18 ` Lars Magne Ingebrigtsen
0 siblings, 1 reply; 5+ messages in thread
From: Uday S Reddy @ 2011-04-25 13:23 UTC (permalink / raw)
To: 8549; +Cc: U.S.Reddy
There is a tricky variable called `eval-expression-debug-on-error' which
I didn't notice till recently.
It is getting set automatically in lisp-interaction-mode and in the Lisp
debugger. The manual doesn't say anywhere that this is being done.
I would prefer that it doesn't get set automatically, given that it has a
tricky behavior. In the light of my previous bug report #8548 that the
debugger can't exit recursive editing levels, making any kind of typing
mistake while working with the debugger puts it in a recursive editing level
where it gets stuck.
http://debbugs.gnu.org/cgi/bugreport.cgi?bug=8548
If you don't want to change the lisp-interaction-mode and the debugger-mode,
can you at least document it in the manual that the variable gets set in
these modes so that the users can unset it in the mode-hooks? I have
suffered for several years needlessly.
(By the way, edebug doesn't seem to set the variable.)
Cheers,
Uday
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^ permalink raw reply [flat|nested] 5+ messages in thread
* bug#8549: 23.3; Undocumented setting of eval-expression-debug-on-error
2011-04-25 13:23 bug#8549: 23.3; Undocumented setting of eval-expression-debug-on-error Uday S Reddy
@ 2011-07-15 13:18 ` Lars Magne Ingebrigtsen
2011-07-15 15:53 ` Uday S Reddy
2011-07-15 16:12 ` Uday S Reddy
0 siblings, 2 replies; 5+ messages in thread
From: Lars Magne Ingebrigtsen @ 2011-07-15 13:18 UTC (permalink / raw)
To: Uday S Reddy; +Cc: 8549
Uday S Reddy <u.s.reddy@cs.bham.ac.uk> writes:
> There is a tricky variable called `eval-expression-debug-on-error' which
> I didn't notice till recently.
>
> It is getting set automatically in lisp-interaction-mode and in the Lisp
> debugger. The manual doesn't say anywhere that this is being done.
>
> I would prefer that it doesn't get set automatically, given that it has a
> tricky behavior. In the light of my previous bug report #8548 that the
> debugger can't exit recursive editing levels, making any kind of typing
> mistake while working with the debugger puts it in a recursive editing level
> where it gets stuck.
>
> http://debbugs.gnu.org/cgi/bugreport.cgi?bug=8548
>
> If you don't want to change the lisp-interaction-mode and the debugger-mode,
> can you at least document it in the manual that the variable gets set in
> these modes so that the users can unset it in the mode-hooks? I have
> suffered for several years needlessly.
I've now mentioned this in the manual, but I've been trying to grep
through the code and see why/where this is done, and I'm coming up
empty.
Does anybody know? And is this a feature or a bug?
`eval-expression-debug-on-error' doesn't sound like something that
should affect `M-x debug', and the other `eval-expression-' variables
are not heeded by doing `M-x debug'. So it seems inconsistent and
somewhat confusing.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog http://lars.ingebrigtsen.no/
^ permalink raw reply [flat|nested] 5+ messages in thread
* bug#8549: 23.3; Undocumented setting of eval-expression-debug-on-error
2011-07-15 13:18 ` Lars Magne Ingebrigtsen
@ 2011-07-15 15:53 ` Uday S Reddy
2011-07-15 16:12 ` Uday S Reddy
1 sibling, 0 replies; 5+ messages in thread
From: Uday S Reddy @ 2011-07-15 15:53 UTC (permalink / raw)
To: Lars Magne Ingebrigtsen; +Cc: Uday S Reddy, 8549
Dear Lars, thanks for your help with Emacs bugs! In response to my other
related bug report, #8548, Stefan said that "this part of the C code was
changed recently". I haven't checked the development version yet. I will
do so now.
Cheers,
Uday
^ permalink raw reply [flat|nested] 5+ messages in thread
* bug#8549: 23.3; Undocumented setting of eval-expression-debug-on-error
2011-07-15 13:18 ` Lars Magne Ingebrigtsen
2011-07-15 15:53 ` Uday S Reddy
@ 2011-07-15 16:12 ` Uday S Reddy
2016-07-11 3:29 ` npostavs
1 sibling, 1 reply; 5+ messages in thread
From: Uday S Reddy @ 2011-07-15 16:12 UTC (permalink / raw)
To: Lars Magne Ingebrigtsen; +Cc: Uday S Reddy, 8549
Ok, Checked the development branch as of 2011-06-13. The variable
`eval-expression-debug-on-error' continues to get set.
On the other hand, exit-recursive-edit is working from the recursive
debugger entry. So the bug report #8548 can be closed.
Cheers,
Uday
^ permalink raw reply [flat|nested] 5+ messages in thread
* bug#8549: 23.3; Undocumented setting of eval-expression-debug-on-error
2011-07-15 16:12 ` Uday S Reddy
@ 2016-07-11 3:29 ` npostavs
0 siblings, 0 replies; 5+ messages in thread
From: npostavs @ 2016-07-11 3:29 UTC (permalink / raw)
To: Uday S Reddy; +Cc: Lars Magne Ingebrigtsen, 8549
tags 8549 fixed
close 8549
quit
Uday S Reddy <u.s.reddy@cs.bham.ac.uk> writes:
> Ok, Checked the development branch as of 2011-06-13. The variable
> `eval-expression-debug-on-error' continues to get set.
I don't understand what is meant by the variable getting "set". Its
default value is t, and has been since it was first introduced in
b49df39d (1999-09-14 "(eval-expression-print-level): New variable....").
It was added to the manual in 66249842 (2011-07-15 "(Using Debugger):
Mention @code{eval-expression-debug-on-error}") which says it fixes this
bug, so I'm closing it now.
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2016-07-11 3:29 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2011-04-25 13:23 bug#8549: 23.3; Undocumented setting of eval-expression-debug-on-error Uday S Reddy
2011-07-15 13:18 ` Lars Magne Ingebrigtsen
2011-07-15 15:53 ` Uday S Reddy
2011-07-15 16:12 ` Uday S Reddy
2016-07-11 3:29 ` npostavs
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