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usually do not have translators for other languages.

Please describe exactly what actions triggered the bug, and
the precise symptoms of the bug.  If you can, give a recipe
starting from `emacs -Q':

I recently wanted to mark all zero-size files in a dired buffer.  I
found that dired-mark-sexp seemed to be just what I needed, but when I
invoked it with the expression (= size 0), I found that it marked every
file, even those of nonzero size.

Here's a test directory I set up:

  /home/mcafee/test:
  total used in directory 28 available 102379756
  drwxrwxr-x  2 mcafee mcafee  4096 Jan 27 18:31 .
  drwxr-xr-x 44 mcafee mcafee 12288 Jan 27 18:31 ..
  -rw-rw-r--  1 mcafee mcafee     8 Jan 27 18:31 bar
  -rw-rw-r--  1 mcafee mcafee    12 Jan 27 18:31 baz
  -rw-rw-r--  1 mcafee mcafee     4 Jan 27 18:31 foo

In this directory, I ran dired-mark-sexp with the following expression,
intended to exercise all of the available symbols:

(progn (message
"name=%s;inode=%s;s=%s;mode=%s;nlink=%s;uid=%s;gid=%s;size=%s;time=%s;sym=%s"
name inodes mode nlink uid gid size time sym) nil)

Here are the messages that were produced:
name=.;inode=0;s=0;mode=drwxrwxr-x;nlink=2;uid=mcafee;gid=2;size=0;time=
mcafee  4096 Jan 27 18:31;sym=
name=..;inode=0;s=0;mode=drwxr-xr-x;nlink=44;uid=mcafee;gid=44;size=0;time=
mcafee 12288 Jan 27 18:31;sym=
name=bar;inode=0;s=0;mode=-rw-rw-r--;nlink=1;uid=mcafee;gid=1;size=0;time=
mcafee     8 Jan 27 18:31;sym=
name=baz;inode=0;s=0;mode=-rw-rw-r--;nlink=1;uid=mcafee;gid=1;size=0;time=
mcafee    12 Jan 27 18:31;sym=
name=foo;inode=0;s=0;mode=-rw-rw-r--;nlink=1;uid=mcafee;gid=1;size=0;time=
mcafee     4 Jan 27 18:31;sym=

Clearly, the "time" variable includes more of the directory listing than
it should, and "size" is incorrectly set to zero for all files, as I
originally noticed.

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'.
For information about debugging Emacs, please read the file
/usr/share/emacs/24.1/etc/DEBUG.


In GNU Emacs 24.1.1 (x86_64-pc-linux-gnu, GTK+ Version 2.24.12)
 of 2012-09-22 on batsu, modified by Debian
Windowing system distributor `The X.Org Foundation', version 11.0.11300000
Configured using:
 `configure '--build' 'x86_64-linux-gnu' '--build' 'x86_64-linux-gnu'
 '--prefix=/usr' '--sharedstatedir=/var/lib' '--libexecdir=/usr/lib'
 '--localstatedir=/var/lib' '--infodir=/usr/share/info'
 '--mandir=/usr/share/man' '--with-pop=yes'
 '--enable-locallisppath=/etc/emacs24:/etc/emacs:/usr/local/share/emacs/24.1/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/24.1/site-lisp:/usr/share/emacs/site-lisp'
 '--with-crt-dir=/usr/lib/x86_64-linux-gnu' '--with-x=yes'
 '--with-x-toolkit=gtk' '--with-toolkit-scroll-bars'
 'build_alias=x86_64-linux-gnu' 'CFLAGS=-g -O2 -fstack-protector
 --param=ssp-buffer-size=4 -Wformat -Werror=format-security -Wall -O2'
 'CPPFLAGS=-D_FORTIFY_SOURCE=2''

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: en_US.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

Major mode: Dired by name

Minor modes in effect:
  gnus-dired-mode: t
  recentf-mode: t
  shell-dirtrack-mode: t
  minibuffer-depth-indicate-mode: t
  ido-everywhere: t
  global-undo-tree-mode: t
  diff-auto-refine-mode: t
  desktop-save-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
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
y SPC = SPC . 2 5 SPC = SPC <backspace> <backspace>
* S-SPC 3 0 SPC = SPC C-u M-: ( * S-SPC 2 <backspace>
. 2 5 SPC 3 0 ) <S-return> <return> C-p C-p C-n C-n
C-p RET C-/ M-x t w i t <return> i ESC ESC ESC ESC
ESC ESC ESC ESC ESC ESC ESC ESC ESC ESC ESC ESC C-p
C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p
C-p C-p C-p C-p C-a C-n C-f C-f C-f C-f <return> v
i C-v C-x k <return> C-a M-< <return> C-p <return>
C-n q C-n C-n M-x g n u s <return> <return> q M-B C-x
d ~ / C-j <S-backspace> + t e s t <return> a M-! t
p <backspace> <backspace> e c h o SPC f o o SPC > S-SPC
f o o ; SPC e h o SPC b <backspace> <backspace> <backspace>
<backspace> c h o SPC b a r SPC b a r SPC > S-SPC b
a r ; SPC e c h o SPC b a z SPC b a z SPC b a z SPC
> S-SPC b a z <return> g C-p C-n M-: C-g M-( ( p r
o g n SPC ( m e s s a g e S-SPC C-g M-( M-p M-p M-n
C-e <return> C-x b m e s s <return> M-x r e [ p r =
e <backspace> <backspace> <backspace> <backspace> <backspace>
p o r t e m <tab> <backspace> <backspace> - e m <tab>
b u <tab> <return> C-g C-x b <return> k M-( C-h C-g
C-h k C-g C-g M-( C-g C-h k M-( C-x 1 M-x M-p <return>
d i C-g C-g C-h k M-( C-g C-x 1 M-x M-p <return>

Recent messages:
name=foo;inode=0;s=0;mode=-rw-rw-r--;nlink=1;uid=mcafee;gid=1;size=0;time=
mcafee     4 Jan 27 18:31;sym=
0 '(progn (message
name=%s;inode=%s;s=%s;mode=%s;nlink=%s;uid=%s;gid=%s;size=%s;time=%s;sym=%s
name inode s mode nlink uid gid size time sym) nil) files marked.
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