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bug#8688: 23.2; search-whitespace-regexp not working as documented


From: Worik Stanton
Subject: bug#8688: 23.2; search-whitespace-regexp not working as documented
Date: Wed, 18 May 2011 11:36:00 +1200
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.17) Gecko/20110424 Thunderbird/3.1.10

This bug report will be sent to the Free Software Foundation,
not to your local site managers!
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 address@hidden mailing list,
and to the gnu.emacs.bug news group.

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 set search-whitespace-regexp to [ \t\r\n]+ in customise as suggested
in the documentation but when I do a isearch-forward-regexp the space
character only matches a literal space.

 '(search-whitespace-regexp "[ \\t\\r\\n]+"))

is the line from .emacs

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/23.2/etc/DEBUG.


In GNU Emacs 23.2.1 (i686-pc-linux-gnu, GTK+ Version 2.24.4)
 of 2011-04-04 on rothera, modified by Debian
Windowing system distributor `The X.Org Foundation', version 11.0.11001000
configured using `configure '--build' 'i686-linux-gnu' '--build' 'i686-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/emacs23:/etc/emacs:/usr/local/share/emacs/23.2/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/23.2/site-lisp:/usr/share/emacs/site-lisp:/usr/share/emacs/23.2/leim' '--with-x=yes' '--with-x-toolkit=gtk' '--with-toolkit-scroll-bars' 'build_alias=i686-linux-gnu' 'CFLAGS=-DDEBIAN -g -O2' 'LDFLAGS=-g' 'CPPFLAGS=''

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

Major mode: Help

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
  blink-cursor-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: (only . t)
  view-mode: t

Recent input:
C-s C-s C-s C-s <return> SPC s l C-x C-s C-h k C-M-S-s
C-x 0 <down> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
<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> <return>
<down> <down> <down> <down> <down> <down> <down> <down>
<up> <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> C-SPC <right> <right>
<right> <right> <right> <right> <right> <right> <right>
<right> <right> <left> C-w <down> <down> <down> <down>
<down> C-g <down> <right> <right> <right> <right> <right>
<right> <right> <right> <right> <return> <down-mouse-1>
<mouse-movement> <mouse-1> <backspace> <backspace>
<backspace> <backspace> C-y <help-echo> <down-mouse-1>
<help-echo> <down-mouse-1> <help-echo> <down-mouse-1>
q q C-M-S-s d e f i n e d . SPC + C-s <backspace> <backspace>
C-s C-s <backspace> <backspace> <backspace> <return>
C-h k C-M-S-s C-x 0 <help-echo> <down-mouse-1> <help-echo>
<mouse-2> C-x b D i <tab> t <tab> <return> <down> <down>
<down> f o o SPC <return> b a r <tab> SPC <tab> SPC
<up> <up> <up> C-M-S-s f o o SPC + b <return> C-x C-s
C-a C-k C-k C-k C-x C-s <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> <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> C-g C-g C-x b <return>
<help-echo> <help-echo> <down-mouse-1> <mouse-movement>
<mouse-movement> <drag-mouse-1> C-w <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:
Mark saved where search started
Type C-x 1 to delete the help window, C-M-v to scroll help.
Mark saved where search started
Saving file /home/worik/Documents/Research/Masters/Thesis/Dissertation.tex...
Wrote /home/worik/Documents/Research/Masters/Thesis/Dissertation.tex
Saving file /home/worik/Documents/Research/Masters/Thesis/Dissertation.tex...
Wrote /home/worik/Documents/Research/Masters/Thesis/Dissertation.tex
Sorting environment...
Removing duplicates... done
Quit [2 times]
byte-code: Buffer is read-only: #<buffer *Help*>

Load-path shadows:
/usr/share/emacs/23.2/site-lisp/auctex/multi-prompt hides /usr/share/emacs/site-lisp/auctex/multi-prompt /usr/share/emacs/23.2/site-lisp/auctex/font-latex hides /usr/share/emacs/site-lisp/auctex/font-latex /usr/share/emacs/23.2/site-lisp/auctex/context hides /usr/share/emacs/site-lisp/auctex/context /usr/share/emacs/23.2/site-lisp/auctex/tex-fold hides /usr/share/emacs/site-lisp/auctex/tex-fold /usr/share/emacs/23.2/site-lisp/auctex/texmathp hides /usr/share/emacs/site-lisp/auctex/texmathp /usr/share/emacs/23.2/site-lisp/auctex/latex hides /usr/share/emacs/site-lisp/auctex/latex /usr/share/emacs/23.2/site-lisp/auctex/tex-fptex hides /usr/share/emacs/site-lisp/auctex/tex-fptex /usr/share/emacs/23.2/site-lisp/auctex/tex-buf hides /usr/share/emacs/site-lisp/auctex/tex-buf /usr/share/emacs/23.2/site-lisp/auctex/tex-mik hides /usr/share/emacs/site-lisp/auctex/tex-mik /usr/share/emacs/23.2/site-lisp/auctex/bib-cite hides /usr/share/emacs/site-lisp/auctex/bib-cite /usr/share/emacs/23.2/site-lisp/auctex/tex-bar hides /usr/share/emacs/site-lisp/auctex/tex-bar /usr/share/emacs/23.2/site-lisp/auctex/tex-info hides /usr/share/emacs/site-lisp/auctex/tex-info /usr/share/emacs/23.2/site-lisp/auctex/context-en hides /usr/share/emacs/site-lisp/auctex/context-en /usr/share/emacs/23.2/site-lisp/auctex/tex hides /usr/share/emacs/site-lisp/auctex/tex /usr/share/emacs/23.2/site-lisp/auctex/tex-style hides /usr/share/emacs/site-lisp/auctex/tex-style /usr/share/emacs/23.2/site-lisp/auctex/tex-jp hides /usr/share/emacs/site-lisp/auctex/tex-jp /usr/share/emacs/23.2/site-lisp/auctex/toolbar-x hides /usr/share/emacs/site-lisp/auctex/toolbar-x /usr/share/emacs/23.2/site-lisp/auctex/context-nl hides /usr/share/emacs/site-lisp/auctex/context-nl /usr/share/emacs/23.2/site-lisp/auctex/tex-font hides /usr/share/emacs/site-lisp/auctex/tex-font /usr/share/emacs23/site-lisp/ess/noweb-mode hides /usr/share/emacs/site-lisp/noweb-mode /usr/share/emacs/23.2/site-lisp/debian-startup hides /usr/share/emacs/site-lisp/debian-startup /usr/share/emacs23/site-lisp/dictionaries-common/flyspell hides /usr/share/emacs/23.2/lisp/textmodes/flyspell /usr/share/emacs23/site-lisp/dictionaries-common/ispell hides /usr/share/emacs/23.2/lisp/textmodes/ispell /usr/share/emacs/23.2/site-lisp/octave3.2-emacsen/octave-mod hides /usr/share/emacs/23.2/lisp/progmodes/octave-mod /usr/share/emacs/23.2/site-lisp/octave3.2-emacsen/octave-inf hides /usr/share/emacs/23.2/lisp/progmodes/octave-inf

Features:
(shadow sort mail-extr message sendmail ecomplete rfc822 mml mml-sec
password-cache mm-decode mm-bodies mm-encode mailcap mail-parse rfc2231
rfc2047 rfc2045 qp ietf-drums mailabbrev nnheader gnus-util netrc
time-date mm-util mail-prsvr gmm-utils mailheader canlock sha1 hex-util
hashcash mail-utils emacsbug cus-edit cus-start cus-load wid-edit pp
dired texmathp log-edit pcvs-util add-log vc vc-dispatcher preview
prv-emacs byte-opt tex-bar tex-buf toolbar-x noutline outline font-latex
bytecomp byte-compile latex easy-mmode edmacro kmacro tex-style tex
latexenc ess-help newcomment multi-isearch help-mode view vc-rcs
ess-roxy advice help-fns advice-preload hideshow imenu saveplace
ess-toolbar ess-mouse mouseme thingatpt browse-url ess-menu ess-swv
ess-noweb noweb-font-lock-mode ess-bugs-l essd-els ess-sas-d ess-sas-l
ess-sas-a executable shell ess-arc-d ess-vst-d ess-xls-d ess-lsp-l
ess-sta-d ess-sta-l cc-vars cc-defs make-regexp ess-sp6-d ess-sp5-d
ess-sp3-d ess-r-d ess-r-args assoc ess-s-l ess-inf ess-utils comint ring
ess-mode noweb-mode ess ess-custom regexp-opt easymenu ess-compat
ess-site preview-latex tex-site auto-loads tooltip ediff-hook vc-hooks
lisp-float-type mwheel x-win x-dnd font-setting tool-bar dnd fontset
image fringe lisp-mode register page menu-bar rfn-eshadow timer select
scroll-bar mldrag 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 loaddefs button minibuffer faces cus-face files
text-properties overlay md5 base64 format env code-pages mule custom
widget hashtable-print-readable backquote make-network-process dbusbind
system-font-setting font-render-setting gtk x-toolkit x multi-tty emacs)






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