GNU bug report logs -
#4737
23.1.50; C-j in *scratch* after a hash table constant errors with void-function
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Reported by: Aidan Kehoe <kehoea <at> parhasard.net>
Date: Fri, 16 Oct 2009 14:45:04 UTC
Severity: normal
Done: Chong Yidong <cyd <at> stupidchicken.com>
Bug is archived. No further changes may be made.
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This is an automatic notification regarding your bug report
which was filed against the emacs package:
#4737: 23.1.50; C-j in *scratch* after a hash table constant errors with void-function
It has been closed by Chong Yidong <cyd <at> stupidchicken.com>.
Their explanation is attached below along with your original report.
If this explanation is unsatisfactory and you have not received a
better one in a separate message then please contact Chong Yidong <cyd <at> stupidchicken.com> by
replying to this email.
--
4737: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=4737
Emacs Bug Tracking System
Contact help-debbugs <at> gnu.org with problems
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Stefan Monnier <monnier <at> iro.umontreal.ca> writes:
>> + ;; Skip over hash table read syntax
>> + (when (looking-back "#s")
>> + (forward-char -2))
>
> Calling looking-back without a limit argument is asking for trouble (it
> has complexity O(size of buffer) or worse).
I've checked in the patch, with a limit argument. Thanks for pointing
this out.
[Message part 3 (message/rfc822, inline)]
Hello!
Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.
Your bug report will be posted to the emacs-pretest-bug <at> gnu.org mailing list.
Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:
In *scratch*:
(progn
(setq print-length nil)
(make-hash-table))
=> #s(hash-table size 65 test eql rehash-size 1.5 rehash-threshold 0.8 data ())
#s(hash-table size 65 test eql rehash-size 1.5 rehash-threshold 0.8 data
())
=>
Debugger entered--Lisp error: (void-function hash-table)
(hash-table size 65 test eql rehash-size 1.5 rehash-threshold 0.8 data nil)
eval((hash-table size 65 test eql rehash-size 1.5 rehash-threshold 0.8 data nil))
eval-last-sexp-1(t)
eval-last-sexp(t)
eval-print-last-sexp()
call-interactively(eval-print-last-sexp nil nil)
However, this succeeds:
(car (list
#s(hash-table size 65 test eql rehash-size 1.5 rehash-threshold 0.8 data ())))
=> #s(hash-table size 65 test eql rehash-size 1.5 rehash-threshold 0.8 data ())
XEmacs handles the problem in #'forward-sexp, details here:
http://hg.debian.org/hg/xemacs/xemacs/file/a27de91ae83c/lisp/lisp.el#l55
When I use the XEmacs version of #'forward-sexp, the problem goes away.
Goodbye,
Aidan
If Emacs crashed, and you have the Emacs process in the gdb debugger,
please include the output from the following gdb commands:
`bt full' and `xbacktrace'.
If you would like to further debug the crash, please read the file
/Sources/emacs/nextstep/Emacs.app/Contents/Resources/etc/DEBUG for instructions.
In GNU Emacs 23.1.50.1 (i386-apple-darwin8.11.1, NS apple-appkit-824.48)
of 2009-09-30 on bonbon
Windowing system distributor `Apple', version 10.3.824
configured using `configure '--with-ns' '--enable-asserts' '--enable-maintainer-mode' '--enable-cocoa-experimental-ctrl-g' '--with-xpm' '--with-jpeg' '--with-tiff' '--with-png' 'LDFLAGS=-L/opt/local/lib -L/usr/X11R6/lib -L/usr/local/lib' 'CPPFLAGS=-I/opt/local/include -I/usr/X11R6/include -I/usr/local/include''
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: de_DE.UTF-8
value of $XMODIFIERS: nil
locale-coding-system: utf-8-unix
default-enable-multibyte-characters: t
Major mode: Lisp Interaction
Minor modes in effect:
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
line-number-mode: t
transient-mark-mode: t
Recent input:
C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n
C-n C-n C-n C-n C-n C-n C-n C-v C-v C-v C-v C-v C-v
C-v C-v C-v C-v <escape> v C-v C-v C-v C-v C-v <prior>
<next> <next> <prior> <prior> <prior> <prior> <prior>
<prior> <prior> <prior> <prior> C-x b * s c <tab> <return>
( k i l l e C-a C-k <f1> v p r i n t - l e <tab> n
<tab> <return> C-x o C-n C-n C-n C-n C-n C-e C-b C-b
C-b C-b <return> C-x o C-n C-x o C-e C-b C-b C-b <return>
C-x o C-x b * s c <tab> C-g C-x o C-n C-n C-x o C-x
b * s c <tab> <return> <escape> > <return> <return>
( s e t q SPC e v a l - e x p r e s s i o n - p r i
n t - l e n g t h SPC n i l ) C-j C-p C-p C-p C-p C-p
C-p C-e C-j C-p C-d C-d ( l e n g t h SPC ' C-e ) C-j
C-x o C-x o C-p C-p C-n C-n C-n C-p C-p C-p C-p C-k
C-k C-k C-p C-e C-j C-p C-e C-j q <escape> x r e p
o r t - e m a c s - b u g C-g C-p <return> <return>
C-p ( c o n s SPC . C-a ( c a r SPC C-e C-n C-e <backspace>
) <return> <tab> n i l ) ) C-j C-x o C-p C-p C-f C-f
C-f C-f C-f C-f C-f C-f C-d C-n C-n C-j C-x o q <escape>
x r e p o r t - e m a c s - b u g <return>
Recent messages:
Making completion list...
Type C-x 1 to delete the help window.
uncompressing simple.el.gz...done
Quit
Mark set
Entering debugger...
Back to top level.
Quit
Entering debugger...
Back to top level.
--
¿Dónde estará ahora mi sobrino Yoghurtu Nghe, que tuvo que huir
precipitadamente de la aldea por culpa de la escasez de rinocerontes?
This bug report was last modified 15 years and 259 days ago.
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