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bug#4887: 23.1; list-load-path-shadows produces broken buffer
From: |
Mark Lillibridge |
Subject: |
bug#4887: 23.1; list-load-path-shadows produces broken buffer |
Date: |
Sat, 7 Nov 2009 21:34:54 -0800 |
Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:
* turn on global-linum-mode
* run list-load-path-shadows
* observe that the resulting buffer, *Shadows*, has no line numbering,
even if you change into that buffer, move around, and change text. [BUG]
Some debugging shows that:
*Shadows* has a post-command-hook value (^h v) of nil, when it should
contain (linum-update-current t) locally and
(... global-linum-mode-check-buffers) globally.
Looking at the source code shows that the following code creates the
buffer *Shadows*:
shadows.el:239:
;; Create the *Shadows* buffer and display shadowings there.
(let ((output-buffer (get-buffer-create "*Shadows*")))
(display-buffer output-buffer)
(set-buffer output-buffer)
(erase-buffer)
(while shadows
(insert (format "%s hides %s\n" (car shadows)
(car (cdr shadows))))
(setq shadows (cdr (cdr shadows))))
(insert msg "\n")))
Some experimentation shows that the offending code is:
(get-buffer-create "*Shadows*")
If you just run this via eval-expression, a new buffer called *Shadows*
is created with a broken value of post-command-hook. I do not appear to
have source code for this function, so I leave the rest of the debugging
job to you...
- Mark
In GNU Emacs 23.1.1 (i386-mingw-nt6.0.6002)
of 2009-07-29 on SOFT-MJASON
Windowing system distributor `Microsoft Corp.', version 6.0.6002
configured using `configure --with-gcc (4.4)'
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: ENU
value of $XMODIFIERS: nil
locale-coding-system: cp1252
default-enable-multibyte-characters: t
Major mode: Text
Minor modes in effect:
global-linum-mode: t
linum-mode: t
delete-selection-mode: t
pc-selection-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-encryption-mode: t
auto-compression-mode: t
line-number-mode: t
transient-mark-mode: t
- bug#4887: 23.1; list-load-path-shadows produces broken buffer,
Mark Lillibridge <=