GNU bug report logs - #2866
23.0.91; "(princ (category-table) (current-buffer))" causes emacs to hang

Previous Next

To add a comment to this bug, you must first unarchive it, by sending
a message to control AT debbugs.gnu.org, with unarchive 2866 in the body.
You can then email your comments to 2866 AT debbugs.gnu.org in the normal way.

Toggle the display of automated, internal messages from the tracker.

Message #5 received at submit <at> emacsbugs.donarmstrong.com (full text, mbox):

From: MON KEY <monkey <at> sandpframing.com>
To: emacs-pretest-bug <at> gnu.org
Subject: 23.0.91; "(princ (category-table) (current-buffer))" causes emacs to 
	hang
Date: Thu, 2 Apr 2009 15:36:44 -0400

evaluating:
(princ (category-table) (current-buffer))
Causes emacs to hang.

Whether this is a useful way to examine the category-table is another
question entirely :P

I've evaluated the previous expression on two separate builds with
identical (undesirable) results:
---
GNU Emacs 23.0.91.1 (i386-mingw-nt5.1.2600)  of 2009-02-26 on SOFT-MJASON
---
GNU Emacs 23.0.60.1 (i386-mingw-nt5.1.2600) of 2008-10-23 on
LENNART-69DE564 (patched)
Windowing system distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-gcc (3.4) --cflags -Ic:/g/include'
---
;;; ==============================
In GNU Emacs 23.0.91.1 (i386-mingw-nt5.1.2600)
 of 2009-02-26 on SOFT-MJASON
Windowing system distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-gcc (3.4)'

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: ENU
  value of $XMODIFIERS: nil
  locale-coding-system: cp1252
  default-enable-multibyte-characters: t

Major mode: Lisp Interaction

Minor modes in effect:
  show-paren-mode: t
  display-time-mode: t
  auto-image-file-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  global-auto-composition-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  size-indication-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Message #10 received at 2866 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Kenichi Handa <handa <at> m17n.org>
To: MON KEY <monkey <at> sandpframing.com>, 2866 <at> debbugs.gnu.org
Subject: Re: bug#2866: 23.0.91;
	"(princ (category-table) (current-buffer))" causes emacs to  hang
Date: Fri, 03 Apr 2009 10:53:34 +0900

In article <d2afcfda0904021236i40758ef4vd17c4fb97e31d67f <at> mail.gmail.com>, MON KEY <monkey <at> sandpframing.com> writes:

> evaluating:
> (princ (category-table) (current-buffer))
> Causes emacs to hang.

> Whether this is a useful way to examine the category-table is another
> question entirely :P

It doesn't hang Emacs for me but takes long time in
redisplay.  It's because of the extremely long line.

If it is ok to terminate lines within the printing of a
object, something like this change will speed up the
redisplay.

--- print.c.~1.255.~	2009-01-16 15:52:25.000000000 +0900
+++ print.c	2009-04-03 10:44:14.000000000 +0900
@@ -2116,6 +2116,9 @@
 	      /* We print a char-table as if it were a vector,
 		 lumping the parent and default slots in with the
 		 character slots.  But we add #^ as a prefix.  */
+	      if (SUB_CHAR_TABLE_P (obj)
+		  && XINT (XSUB_CHAR_TABLE (obj)->depth) == 3)
+		PRINTCHAR ('\n');
 	      PRINTCHAR ('#');
 	      PRINTCHAR ('^');
 	      if (SUB_CHAR_TABLE_P (obj))

---
Kenichi Handa
handa <at> m17n.org

Message #15 received at 2866 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Kenichi Handa <handa <at> m17n.org>
Cc: 2866 <at> debbugs.gnu.org, MON KEY <monkey <at> sandpframing.com>
Subject: Re: bug#2866: 23.0.91; "(princ (category-table) (current-buffer))" causes emacs to  hang
Date: Thu, 02 Apr 2009 23:18:54 -0400

>> evaluating:
>> (princ (category-table) (current-buffer))
>> Causes emacs to hang.

>> Whether this is a useful way to examine the category-table is another
>> question entirely :P

> It doesn't hang Emacs for me but takes long time in
> redisplay.  It's because of the extremely long line.

> If it is ok to terminate lines within the printing of a
> object, something like this change will speed up the
> redisplay.

Looks like a good quick-fix.  Better of course would be to speed up the
(re)display of long lines.


        Stefan

Message #20 received at 2866 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Kenichi Handa <handa <at> m17n.org>
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: 2866 <at> debbugs.gnu.org, monkey <at> sandpframing.com
Subject: Re: bug#2866: 23.0.91; "(princ (category-table) (current-buffer))" causes emacs to  hang
Date: Fri, 03 Apr 2009 15:27:16 +0900

In article <jwv1vsa5st7.fsf-monnier+emacsbugreports <at> gnu.org>, Stefan Monnier <monnier <at> iro.umontreal.ca> writes:

>>> evaluating:
>>> (princ (category-table) (current-buffer))
>>> Causes emacs to hang.

>>> Whether this is a useful way to examine the category-table is another
>>> question entirely :P

> > It doesn't hang Emacs for me but takes long time in
> > redisplay.  It's because of the extremely long line.

> > If it is ok to terminate lines within the printing of a
> > object, something like this change will speed up the
> > redisplay.

> Looks like a good quick-fix.

I've just installed it.

> Better of course would be to speed up the (re)display of
> long lines.

Sure.

---
Kenichi Handa
handa <at> m17n.org

Previous Next

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