--- Begin Message ---
|
Subject: |
26.0.50; Buffer-menu-bury gets (void-variable tabulated-list--near-rows) |
|
Date: |
Sat, 21 Jan 2017 15:17:34 -0500 |
This has been happening for a while now in master, but not in the
25.1 release. To reproduce:
1. emacs -Q
2. "C-x C-b" (which shows the buffer menu with *scratch* and
*Messages* in a new window), and "C-x o" (which moves the cursor into
this window in front of *scratch*).
3. "b" to invoke Buffer-menu-bury. The line with the *scratch*
buffer should move below *Messages*; instead, it is erased and only
partly redrawn in the new location, and the error message "Symbol s
value as variable is void: tabulated-list--near-rows" is displayed.
The patch below restores the expected behavior, but it's a kludge to
require buff-menu.el to know so much about tabulated-list.el innards.
-- Bob Rogers
http://www.rgrjr.com/
------------------------------------------------------------------------
diff --git a/lisp/buff-menu.el b/lisp/buff-menu.el
index 77b325f..27a00b9 100644
--- a/lisp/buff-menu.el
+++ b/lisp/buff-menu.el
@@ -595,7 +595,10 @@ Buffer-menu-bury
(save-excursion
(let ((elt (tabulated-list-delete-entry)))
(goto-char (point-max))
- (apply 'tabulated-list-print-entry elt)))
+ (let ((tabulated-list--near-rows
+ (list
+ (tabulated-list-get-entry (point-at-bol 0)))))
+ (apply 'tabulated-list-print-entry elt))))
(message "Buffer buried."))
(t
(tabulated-list-delete-entry)
------------------------------------------------------------------------
In GNU Emacs 26.0.50.1 (x86_64-suse-linux-gnu, GTK+ Version 2.24.31)
of 2017-01-21 built on orion
Repository revision: 07d15164271270d09464863d7ec2bfce62d65085
Windowing system distributor 'The X.Org Foundation', version 11.0.11601000
System Description: openSUSE 13.2 (Harlequin) (x86_64)
Recent messages:
Read-Only mode disabled in current buffer
Mark set
Buffer-menu-bury
Buffer buried. [6 times]
Mark set
Auto-saving...
Undo! [14 times]
user-error: No further undo information
Buffer buried. [2 times]
Making completion list... [2 times]
Configured using:
'configure --without-dbus --without-gsettings --without-gconf'
Configured features:
XPM JPEG TIFF GIF PNG RSVG SOUND NOTIFY GNUTLS FREETYPE XFT ZLIB
TOOLKIT_SCROLL_BARS GTK2 X11
Important settings:
value of $LANG: en_US.UTF-8
locale-coding-system: utf-8-unix
Major mode: Emacs-Lisp
Minor modes in effect:
diff-auto-refine-mode: t
global-eldoc-mode: t
mouse-wheel-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
blink-cursor-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t
line-number-mode: t
Load-path shadows:
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/usr/share/emacs/site-lisp/site-start hides
/usr/local/share/emacs/site-lisp/site-start
/home/rogers/emacs/imported/loaddefs hides
/usr/local/share/emacs/26.0.50/lisp/loaddefs
Features:
(shadow sort mail-extr emacsbug message subr-x puny seq rgr-dired dired
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Memory information:
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(symbols 48 22686 1)
(miscs 40 121 311)
(strings 32 25910 4873)
(string-bytes 1 813969)
(vectors 16 17060)
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(floats 8 257 266)
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(buffers 976 17)
(heap 1024 25223 1302))
--- End Message ---
--- Begin Message ---
|
Subject: |
Re: bug#25506: 26.0.50; Buffer-menu-bury gets (void-variable tabulated-list--near-rows) |
|
Date: |
Sun, 22 Jan 2017 14:33:31 +0900 |
|
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/26.0.50 (gnu/linux) |
Tino Calancha <address@hidden> writes:
> Bob Rogers <address@hidden> writes:
>
>> This has been happening for a while now in master, but not in the
>> 25.1 release. To reproduce:
>>
>> 1. emacs -Q
>>
>> 2. "C-x C-b" (which shows the buffer menu with *scratch* and
>> *Messages* in a new window), and "C-x o" (which moves the cursor into
>> this window in front of *scratch*).
>>
>> 3. "b" to invoke Buffer-menu-bury. The line with the *scratch*
>> buffer should move below *Messages*; instead, it is erased and only
>> partly redrawn in the new location, and the error message "Symbol s
>> value as variable is void: tabulated-list--near-rows" is displayed.
> Thank you very much for report this bug!
> Such `tabulated-list--near-rows' must be bound before
> a call to `tabulated-list-print-col', because the latter use the former
> via `tabulated-list--col-local-max-widths'.
>> The patch below restores the expected behavior, but it's a kludge to
>> require buff-menu.el to know so much about tabulated-list.el innards.
> I agree with you. The variable `tabulated-list--near-rows' is intended
> just for internal use in tabulated-list.el.
> I am going to apply the following patch:
>
> ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
>>From ade0652cc2a7103cd910accda8165ff8ee7c719f Mon Sep 17 00:00:00 2001
> From: Tino Calancha <address@hidden>
> Date: Sun, 22 Jan 2017 14:23:45 +0900
> Subject: [PATCH] Prevent to use tabulated-list--near-rows unbound
>
> * lisp/emacs-lisp/tabulated-list.el (tabulated-list-print-entry):
> Make sure 'tabulated-list--near-rows' is bound before use it (Bug#25506).
> ---
> lisp/emacs-lisp/tabulated-list.el | 9 +++++++--
> 1 file changed, 7 insertions(+), 2 deletions(-)
>
> diff --git a/lisp/emacs-lisp/tabulated-list.el
> b/lisp/emacs-lisp/tabulated-list.el
> index eadf79ffd4..b6b49b1bfa 100644
> --- a/lisp/emacs-lisp/tabulated-list.el
> +++ b/lisp/emacs-lisp/tabulated-list.el
> @@ -412,8 +412,13 @@ tabulated-list-print-entry
> (inhibit-read-only t))
> (if (> tabulated-list-padding 0)
> (insert (make-string x ?\s)))
> - (dotimes (n ncols)
> - (setq x (tabulated-list-print-col n (aref cols n) x)))
> + (let ((tabulated-list--near-rows ; Bind it if not bound yet (Bug#25506).
> + (or (bound-and-true-p tabulated-list--near-rows)
> + (list (or (tabulated-list-get-entry (point-at-bol 0))
> + cols)
> + cols))))
> + (dotimes (n ncols)
> + (setq x (tabulated-list-print-col n (aref cols n) x))))
> (insert ?\n)
> ;; Ever so slightly faster than calling `put-text-property' twice.
> (add-text-properties
Pushed to master branch as commit ade0652cc2a7103cd910accda8165ff8ee7c719f
--- End Message ---