GNU bug report logs - #12500
24.2.50; (search-failed "\n debug(") in debugger

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Helmut Eller <eller.helmut <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.2.50; (search-failed "\n  debug(") in debugger
Date: Mon, 24 Sep 2012 08:34:29 +0200

When stepping, the (search-forward "\n  debug(") in
debugger-setup-buffer sometimes fails.  To reproduce this 

1. eval this

  (progn
   (defun foo ()
     (debug nil 1)
     (debug nil 2))
   (setq toggle-debug-on-error t)
   (foo))

2. The debugger pops up with the message:
   Debugger entered: (1)
     foo()

3. At the line with foo(), press d (i.e. debugger-step-through).

4. Now the buffer starts with:
   Debugger entered--beginning evaluation of function call form:
   * (debug nil 2)

5. Now press c (i.e. debugger-continue) on the line with the *.

6. The debugger enters recursively with the error:
   Debugger entered--Lisp error: (search-failed "\n debug(")



In GNU Emacs 24.2.50.1 (i686-pc-linux-gnu, GTK+ Version 2.20.1)
 of 2012-09-22 on ix
Bzr revision: 110128 cyd <at> gnu.org-20120922032937-yf6yua64ed45tzap
Windowing system distributor `The X.Org Foundation', version 11.0.10707000
Configured using:
 `configure '--with-jpeg=no' '--with-gif=no' '--with-tiff=no''

Message #8 received at 12500 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Helmut Eller <eller.helmut <at> gmail.com>
Cc: 12500 <at> debbugs.gnu.org
Subject: Re: bug#12500: 24.2.50; (search-failed "\n  debug(") in debugger
Date: Thu, 06 Dec 2012 23:21:34 -0500

> When stepping, the (search-forward "\n  debug(") in
> debugger-setup-buffer sometimes fails.  To reproduce this 

The patch below seems to fix the problem in your test case; can you
confirm that it fixes your problem?


        Stefan


=== modified file 'lisp/emacs-lisp/debug.el'
--- lisp/emacs-lisp/debug.el	2012-11-13 03:06:56 +0000
+++ lisp/emacs-lisp/debug.el	2012-12-07 04:19:04 +0000
@@ -333,7 +333,7 @@
   (goto-char (point-min))
   (delete-region (point)
 		 (progn
-		   (search-forward "\n  debug(")
+		   (re-search-forward "\n. debug(")
 		   (forward-line (if (eq (car args) 'debug)
                                      ;; Remove debug--implement-debug-on-entry
                                      ;; and the advice's `apply' frame.

Message #11 received at 12500 <at> debbugs.gnu.org (full text, mbox):

From: Marcin Borkowski <mbork <at> mbork.pl>
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: 12500 <at> debbugs.gnu.org, Helmut Eller <eller.helmut <at> gmail.com>
Subject: Re: bug#12500: 24.2.50; (search-failed "\n  debug(") in debugger
Date: Fri, 29 Jan 2016 19:20:29 +0100

On 2012-12-06, at 23:21, Stefan Monnier <monnier <at> iro.umontreal.ca> wrote:

>> When stepping, the (search-forward "\n  debug(") in
>> debugger-setup-buffer sometimes fails.  To reproduce this 
>
> The patch below seems to fix the problem in your test case; can you
> confirm that it fixes your problem?

Just wondering: should this bug be closed?  It's apparently been fixed
more than 3 years ago, and there are no further reports.  What is the
right course of action?

Best,

-- 
Marcin Borkowski
http://mbork.pl/en

Message #14 received at 12500 <at> debbugs.gnu.org (full text, mbox):

From: Helmut Eller <eller.helmut <at> gmail.com>
To: Marcin Borkowski <mbork <at> mbork.pl>
Cc: 12500 <at> debbugs.gnu.org, Stefan Monnier <monnier <at> iro.umontreal.ca>
Subject: Re: bug#12500: 24.2.50; (search-failed "\n  debug(") in debugger
Date: Fri, 29 Jan 2016 19:37:31 +0100

On Fri, Jan 29 2016, Marcin Borkowski wrote:

>> The patch below seems to fix the problem in your test case; can you
>> confirm that it fixes your problem?
>
> Just wondering: should this bug be closed?

Closing it is ok with me.

Helmut

Message #17 received at 12500 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Marcin Borkowski <mbork <at> mbork.pl>
Cc: 12500 <at> debbugs.gnu.org, eller.helmut <at> gmail.com, monnier <at> iro.umontreal.ca
Subject: Re: bug#12500: 24.2.50; (search-failed "\n  debug(") in debugger
Date: Fri, 29 Jan 2016 21:10:49 +0200

> From: Marcin Borkowski <mbork <at> mbork.pl>
> Date: Fri, 29 Jan 2016 19:20:29 +0100
> Cc: 12500 <at> debbugs.gnu.org, Helmut Eller <eller.helmut <at> gmail.com>
> 
> On 2012-12-06, at 23:21, Stefan Monnier <monnier <at> iro.umontreal.ca> wrote:
> 
> >> When stepping, the (search-forward "\n  debug(") in
> >> debugger-setup-buffer sometimes fails.  To reproduce this 
> >
> > The patch below seems to fix the problem in your test case; can you
> > confirm that it fixes your problem?
> 
> Just wondering: should this bug be closed?

Yes, please.

Thanks.

Message #22 received at 12500-done <at> debbugs.gnu.org (full text, mbox):

From: Marcin Borkowski <mbork <at> mbork.pl>
To: Helmut Eller <eller.helmut <at> gmail.com>
Cc: 12500-done <at> debbugs.gnu.org, Stefan Monnier <monnier <at> iro.umontreal.ca>
Subject: Re: bug#12500: 24.2.50; (search-failed "\n  debug(") in debugger
Date: Fri, 29 Jan 2016 20:12:40 +0100

On 2016-01-29, at 19:37, Helmut Eller <eller.helmut <at> gmail.com> wrote:

> On Fri, Jan 29 2016, Marcin Borkowski wrote:
>
>>> The patch below seems to fix the problem in your test case; can you
>>> confirm that it fixes your problem?
>>
>> Just wondering: should this bug be closed?
>
> Closing it is ok with me.

As you wish. ;-)

> Helmut

Thanks, and best regards,

-- 
Marcin Borkowski
http://octd.wmi.amu.edu.pl/en/Marcin_Borkowski
Faculty of Mathematics and Computer Science
Adam Mickiewicz University

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