bug#2862: 23.0.92; Dired can't visit file with backslash

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 [email protected] mailing list.

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

Dired can't visit a file with a backslash on its name (such as
\foo). Those files are displayed with a double backslash. If the user
presses `v' (for viewing) of `f' (for visiting) the file, an error
message is displayed:

dired-get-file-for-visit: File no longer exists; type `g' to update dired buffer


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
/usr/local/share/emacs/23.0.90/etc/DEBUG for instructions.


In GNU Emacs 23.0.90.2 (x86_64-unknown-linux-gnu, GTK+ Version 2.14.4)
 of 2009-02-14 on qcore
Windowing system distributor `The X.Org Foundation', version 11.0.10502000
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:
  shell-dirtrack-mode: t
  show-paren-mode: t
  diff-auto-refine-mode: t
  iswitchb-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
  column-number-mode: t
  line-number-mode: t

Recent input:
<down> <down> <down> <down> <down> C-x C-f X D i <tab> 
<return> M-x l o n g <tab> <return> C-x b <return> 
M-x <up> <return> <up> <up> <up> <up> <up> <up> <up> 
<up> <up> <up> <up> <up> <up> <up> <up> C-s C-s <up> 
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up> 
<up> <up> C-s C-s C-n C-n C-n C-n C-n C-n C-l C-s C-s 
C-a C-x b <return> C-l C-s C-s C-a C-x b <return> M-x 
<up> <return> C-x b <return> M-x <up> <return> C-x 
b <return> C-x b <return> C-x b <return> C-x b <return> 
C-x b <return> C-x b <return> <up> <up> C-x b <return> 
<up> <up> <up> <up> <up> <up> <up> <up> <up> C-x b 
<return> <help-echo> <help-echo> <help-echo> <help-echo> 
<menu-bar> <options> <line-wrapping> <truncate> C-a 
<right> <right> <right> <right> <right> <right> <right> 
<right> <right> <right> <right> <right> <right> <right> 
<right> <right> <right> <right> <right> <right> <right> 
<right> <right> <right> <right> <right> <right> <right> 
<right> <right> <right> <right> <right> <right> <right> 
<right> <right> <right> <right> <right> <right> <right> 
<right> <right> <right> <right> <right> <right> <right> 
<right> <right> <right> <right> <right> <right> <right> 
<right> <right> <right> <right> <right> <right> <right> 
<right> <right> <right> <right> <right> <right> <right> 
<right> <right> <right> <right> <right> <right> <up> 
C-a C-SPC C-SPC <S-down> <S-down> <S-down> <S-down> 
<up> <C-right> <C-right> <C-right> <C-right> <C-right> 
<C-right> <C-right> <C-right> <C-right> <C-right> <C-right> 
<C-right> <C-right> <C-right> <C-right> <C-right> <C-right> 
<C-right> <C-right> <C-right> <C-right> <C-right> <C-right> 
<C-right> <C-right> <C-right> <C-right> <help-echo> 
<help-echo> C-x k <return> C-x k <return> C-x k <return> 
C-x d <up> <up> <up> <return> <down> v g <down> <down> 
<down> <down> <down> <down> <down> <down> <up> v <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <menu-bar> <help-menu> 
<send-emacs-bug-report>

Recent messages:
Loading tramp...done
Mark saved where search started
Longlines mode enabled [2 times]
Mark saved where search started [4 times]
Longlines mode disabled [2 times]
Truncate long lines enabled
Mark set
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Mark set
dired-get-file-for-visit: File no longer exists; type `g' to update dired buffer
dired-get-file-for-visit: File no longer exists; type `g' to update dired buffer