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Customize buffer modification: indicator, feedback, undo

From: Drew Adams
Subject: Customize buffer modification: indicator, feedback, undo
Date: Sat, 10 Jun 2006 12:00:43 -0700

emacs -Q
M-x customize-face font-lock-comment-face

1. Buffer *Customize Face: Font Lock Comment Face* shows "**" in the
   mode line, as if the user had already modified something in the

2. Trying to type in the header text has no effect. There should be a
   message indicating that that area of text is read-only. Otherwise,
   with no feedback, the user doesn't understand what's happening and

3. There seems to be no undo in Customize buffers. Why? Users should
   be able to undo edits at least.  Also, when you try `undo', the
   message says that no *further* undo information is available. This
   message is misleading. If undo is not available, the message should
   say so.

In GNU Emacs (i386-mingw-nt5.1.2600)
 of 2006-03-20 on W2ONE
X server distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-gcc (3.4) --cflags -Id:/g/include'

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

Major mode: Custom

Minor modes in effect:
  encoded-kbd-mode: t
  tooltip-mode: t
  auto-compression-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
  line-number-mode: t

Recent input:
<help-echo> <down-mouse-1> <mouse-1> M-x c u s t o 
m i z e - f a c e <return> f o t <backspace> n t - 
l c o <backspace> <backspace> o c k - c o m <tab> f 
<tab> <return> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <menu-bar> <help-menu> <re

Recent messages:
Loading cus-edit...done
Loading thingatpt...done
Creating customization items...
Creating face editor...
Loading pp...done
Creating face editor...done
Creating customization items ...done
Resetting customization items...done
Creating customization setup...done
Loading emacsbug...done

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