re-builder bug(s)

[P.L.Hayes]

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.

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

I can't customize reb-re-syntax from the re-builder customization group
buffer. Pressing the value menu button results in the message:

"widget-apply: Symbol's function definition is void: nil"

When I change "(value: string)" to "(other string)" in the relevant
part of re-builder.el: 

(defcustom reb-re-syntax 'read
  "*Syntax for the REs in the RE Builder.
Can either be `read', `string', `sregex' or `lisp-re'."
  :group 're-builder
  :type '(choice (const :tag "Read syntax" read)
                 (const :tag "String syntax" string)
                 (const :tag "`sregex' syntax" sregex)
                 (const :tag "`lisp-re' syntax" lisp-re)
                 (const :tag "`rx' syntax" rx)
                 (value: string)))

it seems to work okay - except that the three menu entries with "`"
and "'" enclosed names look rather ugly.

I also find (and I'm not quite sure whether it's a real bug or just
something I haven't understood about regexps or re-builder) that
expressions such as "\\>" and "$" in the re-builder buffer don't work
(and are flagged as "*invalid*" in the modeline) but ".\\>" and ".$",
for example, do work.


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/share/emacs/23.0.0/etc/DEBUG for instructions.


In GNU Emacs 23.0.0.1 (i686-pc-linux-gnu, GTK+ Version 2.10.9)
 of 2007-03-05 on wolfbone
X server distributor `The X.Org Foundation', version 11.0.70101000
configured using `configure  '--prefix=/usr' '--host=i686-pc-linux-gnu' 
'--mandir=/usr/share/man' '--infodir=/usr/share/info' '--datadir=/usr/share' 
'--sysconfdir=/etc' '--localstatedir=/var/lib' '--enable-debug' 
'--program-suffix=.emacs-23.0.0' '--without-carbon' '--with-x' '--with-xpm' 
'--with-toolkit-scroll-bars' '--enable-font-backend' '--with-freetype' 
'--with-xft' '--with-jpeg' '--with-tiff' '--with-gif' '--with-png' 
'--with-x-toolkit=gtk' '--build=i686-pc-linux-gnu' 
'build_alias=i686-pc-linux-gnu' 'host_alias=i686-pc-linux-gnu' 'CFLAGS=-O2''

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_GB.utf8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default-enable-multibyte-characters: t

Major mode: Emacs-Lisp

Minor modes in effect:
  show-paren-mode: t
  msb-mode: t
  desktop-save-mode: t
  tooltip-mode: t
  tool-bar-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
  global-auto-composition-mode: t
  auto-composition-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: identity

Recent input:
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<menu-bar> <buffer> C-a "re-builder.el.gz" <down-mouse-1> 
<mouse-movement> <mouse-movement> <drag-mouse-1> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <menu-bar> <help-menu> <re
port-emacs-bug>

Recent messages:
Removing duplicates... done
Applying style hooks... done
uncompressing CLOS-guide.txt.gz...done
Note: file is write protected
Loading info...done
bunzip2ing elisp.info.bz2...done
bunzip2ing elisp-1.info.bz2...done
Desktop: 24 buffers restored.
For information about the GNU Project and its goals, type C-h C-p. [2 times]
Loading emacsbug...done