--- Begin Message ---
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Subject: |
23.1.50; C-j in *scratch* after a hash table constant errors with void-function |
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Date: |
Fri, 16 Oct 2009 15:40:12 +0100 |
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@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?
--- End Message ---
--- Begin Message ---
|
Subject: |
Re: bug#4737: 23.1.50; C-j in *scratch* after a hash table constant errors with void-function |
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Date: |
Sun, 18 Oct 2009 18:28:32 -0400 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/23.1.50 (gnu/linux) |
Stefan Monnier <monnier@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.
--- End Message ---