bug#15676: 24.3; visual-line does not activate properly from file header

bug#15676: 24.3; visual-line does not activate properly from file header

[Josh Hunsaker]

When I add the following line:

    -*- visual-line-mode: t -*-

to the top of a file, and open that file in a new buffer, the line
wrapping does not work.  Checking `C-h m` tells me the minor mode
visual-line is enabled, but the lines in the buffer do not wrap as
expected.  If I then issue the command `(visual-line-mode t)`, then the
lines will wrap as expected. I see this behavior even when starting from
`emacs -Q`.


In GNU Emacs 24.3.1 (i386-mingw-nt6.1.7601)
 of 2013-03-17 on MARVIN
Windowing system distributor `Microsoft Corp.', version 6.1.7601
Configured using:
 `configure --with-gcc (4.7) --cflags
 -ID:/devel/emacs/libs/libXpm-3.5.8/include
 -ID:/devel/emacs/libs/libXpm-3.5.8/src
 -ID:/devel/emacs/libs/libpng-dev_1.4.3-1/include
 -ID:/devel/emacs/libs/zlib-dev_1.2.5-2/include
 -ID:/devel/emacs/libs/giflib-4.1.4-1/include
 -ID:/devel/emacs/libs/jpeg-6b-4/include
 -ID:/devel/emacs/libs/tiff-3.8.2-1/include
 -ID:/devel/emacs/libs/gnutls-3.0.9/include
 -ID:/devel/emacs/libs/libiconv-1.13.1-1-dev/include
 -ID:/devel/emacs/libs/libxml2-2.7.8/include/libxml2'

Important settings:
  value of $LANG: en_US.UTF-8
  locale-coding-system: cp1252
  default enable-multibyte-characters: t

Major mode: Fundamental

Minor modes in effect:
  tooltip-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-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
  visual-line-mode: t
  transient-mark-mode: t

Recent input:
C-x C-f s t <backspace> <backspace> t e m p / s t <return>
y M-x s e n d <tab> b - <backspace> <backspace> <backspace>
<backspace> <backspace> <backspace> r p e <backspace>
<backspace> e p <tab> o r <tab> <return>

Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.
Please type y, n, or !: y
Making completion list...

Load-path shadows:
None found.

Features:
(shadow sort gnus-util mail-extr emacsbug message format-spec rfc822 mml
mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev
gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums mm-util
mail-prsvr mail-utils help-mode easymenu time-date tooltip ediff-hook
vc-hooks lisp-float-type mwheel dos-w32 ls-lisp w32-common-fns
disp-table w32-win w32-vars tool-bar dnd fontset image regexp-opt fringe
tabulated-list newcomment lisp-mode register page menu-bar rfn-eshadow
timer select scroll-bar mouse jit-lock font-lock syntax facemenu
font-core frame cham georgian utf-8-lang misc-lang vietnamese tibetan
thai tai-viet lao korean japanese hebrew greek romanian slovak czech
european ethiopic indian cyrillic chinese case-table epa-hook
jka-cmpr-hook help simple abbrev minibuffer loaddefs button faces
cus-face macroexp files text-properties overlay sha1 md5 base64 format
env code-pages mule custom widget hashtable-print-readable backquote
make-network-process w32 multi-tty emacs)

bug#15676: 24.3; visual-line does not activate properly from file header

[Glenn Morris]

Josh Hunsaker wrote:

> When I add the following line:
>
>     -*- visual-line-mode: t -*-
>
> to the top of a file, and open that file in a new buffer, the line
> wrapping does not work.

C-h v visual-line-mode:

  Use the command `visual-line-mode' to change this variable.

info emacs:
   48.2.4.1 Specifying File Variables
   
   To enable or disable a minor mode in a local variables list, use the
   `eval' keyword with a Lisp expression that runs the mode command (*note
   Minor Modes::). For example, the following local variables list enables
   Eldoc mode (*note Lisp Doc::) by calling `eldoc-mode' with no argument
   (calling it with an argument of 1 would do the same), and disables Font
   Lock mode (*note Font Lock::) by calling `font-lock-mode' with an
   argument of -1.
   
        ;; Local Variables:
        ;; eval: (eldoc-mode)
        ;; eval: (font-lock-mode -1)
        ;; End: