bug#3943: 23.0.96; CPerl-mode is too electric

[Rommerskirchen, Heinrich (NSN - DE/Munich)]

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 emacs-pretest-bug@gnu.org mailing
list.

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

In CPerl-Mode the '<' inside a while statement completes not only to
'<>' which is fine, but adds another set of brackets, so that you end up
with
--- example start
while (<>) {
} ( ) {
}
--- example end
instead of the reasonble
--- example start
while (<>) {

}
--- example end
what was the result in former versions.

To duplicate this I started emacs with '-Q' and loaded a file containing
-- start of file
(autoload 'cperl-mode  "cperl-mode" t t)
(setq cperl-hairy t)            ; Alle Features on
(setq cperl-indent-level 4)
(setq cperl-auto-newline t)     ; Einrueckung und Leerzeile bei ';' usw.
(setq auto-mode-alist
      (append '(("\\.\\([pP][Llm]\\|al\\)$" . cperl-mode))
auto-mode-alist ))
-- end of file
the CPerl configuration I have used for a few years

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
d:/bin/emacs/etc/DEBUG for instructions.


In GNU Emacs 23.0.96.1 (i386-mingw-nt5.1.2600)
 of 2009-07-09 on SOFT-MJASON
Windowing system distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-gcc (3.4)'

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: DEU
  value of $XMODIFIERS: nil
  locale-coding-system: cp1252
  default-enable-multibyte-characters: t

Major mode: CPerl

Minor modes in effect:
  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-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t
  abbrev-mode: t

Recent input:
M-x l o a d - f i l <return> t m p / t e <tab> . e 
<tab> <return> C-x C-f t e s t . p l <return> w h i 
l e SPC SPC < <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:
For information about GNU Emacs and the GNU system, type C-h C-a.
Loading d:/tmp/test.el (source)...done
(New file)
Precede char by C-q to avoid expansion [2 times]
<>      Reads line from union of files in @ARGV (= command line) and
STDIN. [2 times]