bug#24443: 24.5; Feature: C-n and C-p to move logically while DOWN and UP move physically

[Ed Avis]

The change in Emacs 23.1 to move up and down by visual lines was
certainly an improvement in usability.  But for some cases such as
keyboard macros it is safer to use the old movement by logical lines.
The Emacs wiki notes that you might want to temporarily change the value
of line-move-visual before calling or recording a macro.  This works,
but it is a bit awkward.

Could I suggest that it might make sense for the more 'expert'
keystrokes C-n and C-p to default to logical line movement, while DOWN
and UP continue to move visually?  Most people who use C-n and C-p will
be Emacs old-timers and remember the logical movement, or at least
understand how to rebind the keys to switch them to visual movement.
This way, rather than two key bindings for the same thing, the different
kinds of line movement both have a key binding.

I think this would make recording macros and other specialized kinds of
cursor movement a lot less fiddly, while keeping the less surprising
behaviour for the ordinary arrow keys.




In GNU Emacs 24.5.1 (x86_64-redhat-linux-gnu, GTK+ Version 3.18.9)
 of 2016-04-11 on buildvm-25.phx2.fedoraproject.org
Configured using:
 `configure --build=x86_64-redhat-linux-gnu
 --host=x86_64-redhat-linux-gnu --program-prefix=
 --disable-dependency-tracking --prefix=/usr --exec-prefix=/usr
 --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc
 --datadir=/usr/share --includedir=/usr/include --libdir=/usr/lib64
 --libexecdir=/usr/libexec --localstatedir=/var
 --sharedstatedir=/var/lib --mandir=/usr/share/man
 --infodir=/usr/share/info --with-dbus --with-gif --with-jpeg --with-png
 --with-rsvg --with-tiff --with-xft --with-xpm --with-x-toolkit=gtk3
 --with-gpm=no build_alias=x86_64-redhat-linux-gnu
 host_alias=x86_64-redhat-linux-gnu 'CFLAGS=-DMAIL_USE_LOCKF -O2 -g
 -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2
 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4
 -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1
 -m64 -mtune=generic' LDFLAGS=-Wl,-z,relro'

Important settings:
  value of $LC_COLLATE: C
  value of $LC_CTYPE: en_GB.UTF-8
  value of $LC_MESSAGES: en_GB.UTF-8
  value of $LC_MONETARY: en_GB.UTF-8
  value of $LC_NUMERIC: en_GB.UTF-8
  value of $LC_TIME: en_GB.UTF-8
  value of $LANG: en_GB.UTF-8
  locale-coding-system: utf-8-unix

Major mode: nXML

Minor modes in effect:
  diff-auto-refine-mode: t
  show-paren-mode: t
  shell-dirtrack-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent messages:
Invoking man forward-line in the background
Please wait: formatting the forward-line man page...
forward-line man page formatted
error in process sentinel: user-error: Can't find the forward-line manpage
error in process sentinel: Can't find the forward-line manpage
Quit [3 times]
Type "q" to delete help window.

Quit
delete-backward-char: Text is read-only

Load-path shadows:
None found.

Features:
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network-stream starttls tls mail-extr log-edit message idna format-spec
rfc822 mml mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231
rfc2047 rfc2045 ietf-drums mailabbrev mail-utils gmm-utils mailheader
add-log log-view pcvs-util nxml-uchnm rng-xsd xsd-regexp rng-cmpct
rng-nxml rng-valid rng-loc rng-uri rng-parse nxml-parse rng-match rng-dt
rng-util rng-pttrn nxml-ns nxml-mode nxml-outln nxml-rap nxml-util
nxml-glyph nxml-enc xmltok diff-mode easy-mmode vc vc-dispatcher ffap
thingatpt url-parse auth-source eieio byte-opt bytecomp byte-compile
cl-extra cconv eieio-core gnus-util mm-util help-fns mail-prsvr
password-cache url-vars dabbrev misearch multi-isearch vc-git cus-edit
wid-edit cl-loaddefs cl-lib cus-start cus-load perl-mode help-mode
easymenu pcmpl-unix xterm time-date paren server compile shell pcomplete
comint ring ansi-color tooltip electric uniquify ediff-hook vc-hooks
lisp-float-type mwheel x-win x-dnd tool-bar dnd fontset image regexp-opt
fringe tabulated-list newcomment lisp-mode prog-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 nadvice
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 dbusbind
gfilenotify dynamic-setting system-font-setting font-render-setting
move-toolbar gtk x-toolkit x multi-tty emacs)

Memory information:
((conses 16 731008 77135)
 (symbols 48 26067 1)
 (miscs 40 397 2165)
 (strings 32 47101 12667)
 (string-bytes 1 2642383)
 (vectors 16 28777)
 (vector-slots 8 1466171 103778)
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 (intervals 56 96513 374)
 (buffers 960 47)
 (heap 1024 50284 2177))

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