bug#11608: 24.0.94; `shell-resync-dirs' fails if a directory name from the directory stack contains a space

bug#11608: 24.0.94; `shell-resync-dirs' fails if a directory name from the directory stack contains a space

[Oleksandr Manzyuk]

This bug report will be sent to the Bug-GNU-Emacs mailing list
and the GNU bug tracker at debbugs.gnu.org.  Please check that
the From: line contains a valid email address.  After a delay of up
to one day, you should receive an acknowledgement at that address.

Please write in English if possible, as the Emacs maintainers
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':

1. emacs -Q
2. M-x shell
3. mkdir "Foo Bar"
4. pushd "Foo Bar"
5. M-x shell-resync-dirs displays a message "Couldn't cd".  This happens
because `shell-resync-dirs' tries to parse the output of "dirs" treating
it as a space separated list of directories.  So the output of "dirs"

~/Foo Bar ~

is parsed as three directories "~/Foo", "Bar", and "~".

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
/home/manzyuk/share/emacs/24.0.94/etc/DEBUG.


In GNU Emacs 24.0.94.1 (x86_64-unknown-linux-gnu, GTK+ Version 2.20.1)
 of 2012-03-07 on paddy
Configured using:
 `configure '--prefix=/home/manzyuk''

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: Shell

Minor modes in effect:
  shell-dirtrack-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
ESC [ > 8 5 ; 9 5 ; 0 c ESC x s h e l l RET c d RET
m k d i r SPC " F o o SPC B a r " RET p u s h d SPC
" F DEL DEL F o o TAB RET ESC x s h e l l - r e s y
n c - d i r s RET ESC x r e p o r TAB RET

Recent messages:
("/home/manzyuk/bin/emacs")
For information about GNU Emacs and the GNU system, type C-h C-a.
~
~/Foo Bar ~
Couldn't cd
You can run the command `shell-resync-dirs' with M-RET

Load-path shadows:
None found.

Features:
(shadow sort gnus-util mail-extr emacsbug message format-spec rfc822 mml
easymenu mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231
mailabbrev gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums
mm-util mail-prsvr mail-utils pcmpl-unix shell pcomplete comint
regexp-opt ansi-color ring time-date tooltip ediff-hook vc-hooks
lisp-float-type mwheel x-win x-dnd tool-bar dnd fontset image fringe
lisp-mode register page menu-bar rfn-eshadow timer select scroll-bar
mouse jit-lock font-lock syntax facemenu font-core frame cham georgian
utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean
japanese hebrew greek romanian slovak czech european ethiopic indian
cyrillic chinese case-table epa-hook jka-cmpr-hook help simple abbrev
minibuffer loaddefs button faces cus-face files text-properties overlay
sha1 md5 base64 format env code-pages mule custom widget
hashtable-print-readable backquote make-network-process dbusbind
dynamic-setting system-font-setting font-render-setting move-toolbar gtk
x-toolkit x multi-tty emacs)