show-paren-mode prevents page-down from displaying next 1/2 page.

[Maguire, Andrew \(GE Infra, Energy\)]

Thanks,
Andrew

"If it runs, script it!"
To setup this rather strange bug, you need to:
   1. ensure show-paren-mode is enabled
   2. create a buffer and in that buffer, half way down the window,
      create a line that has some [] brackets such that the ] bracket
      is the last displayed character on the right of the screen.

      I also had characters after the ] so that the right hand "fringe"
      displayed its wrap-around icon.

      It is important that the [] line is displayed half way down the window, 
e.g on the 5th line on a window height of 10 (9 lines displayed due to wrap 
around).

   3. place point anywhere on the line with [] brackets and press the page-down 
key.

Instead of paging down, the display will flash and place point immediately 
after the ] bracket.


In GNU Emacs 22.0.92.1 (i386-mingw-nt5.1.2600)
 of 2007-01-01 on DTOP
X server distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-gcc (4.1) --cflags  -O2 -g0 -march=i386 
-mtune=i686 -pipe -IC:/gnuwin32/include_emacs -IC:/gnuwin32/lib 
-IC:/gnuwin32/src --ldflags  -s '

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: ENG
  locale-coding-system: cp1252
  default-enable-multibyte-characters: t

Major mode: Perl

Minor modes in effect:
  show-paren-mode: t
  encoded-kbd-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
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  auto-compression-mode: t
  line-number-mode: t

Recent input:
<backspace> <backspace> u n l e s s SPC <down-mouse-1> 
<mouse-movement> <mouse-movement> <drag-mouse-1> <down-mouse-2> 
<mouse-2> ; <down> <up> <up> <C-left> <C-left> <C-left> 
W A R N I N G . SPC C-x C-s C-x C-b <help-echo> <help-echo> 
<down-mouse-2> <mouse-2> <down-mouse-1> <mouse-1> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <up> <up> <up> <return> C-x 1 
<next> <next> <next> <next> <next> <next> <next> <next> 
<down> <down> <down> <next> <prior> <prior> <prior> 
<up> <up> <up> <next> <next> <next> <down> <next> <prior> 
<up> <next> <next> <prior> <up> <up> <next> <prior> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <menu-bar> <help-menu> <report-emacs-b
ug>

Recent messages:
Checking out 
u:/swdev/users/andrewma/localisation/trans/lib/localisation/File/magik_patch.pm...done
Mark set [4 times]
Auto-saving...done
Wrote 
u:/swdev/users/andrewma/localisation/trans/lib/localisation/File/magik_patch.pm
Mark set
Wrote 
u:/swdev/users/andrewma/localisation/trans/lib/localisation/File/magik_patch.pm
Mark set [2 times]
Wrote 
u:/swdev/users/andrewma/localisation/trans/lib/localisation/File/magik_patch.pm
sw-half-scroll-down: Beginning of buffer [2 times]
Loading emacsbug...done