GNU bug report logs - #11053
batch mode line motion

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Reuben Thomas <rrt <at> sc3d.org>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.0.94;
	When run with --batch, Emacs seems to start with point on the second
	line of the given file
Date: Tue, 20 Mar 2012 19:47:37 +0000

I noticed this when running the GNU Zile tests, which are also run on
Emacs to ensure that Zile is slavishly following Emacs's behavior.

Here is an interactive test test.el:

; end-of-line backward-word backward-word a save-buffer save-buffers-kill-emacs
(execute-kbd-macro "\C-e\M-b\M-ba\C-x\C-s\C-x\C-c")

which is run on the following input:

--- Cut here ---
Here is a sample file.
It has several lines.

And more than one paragraph.
--- Cut here ---

and should produce the following output:

--- Cut here ---
Here is a asample file.
It has several lines.

And more than one paragraph.
--- Cut here ---

but actually produces the following output:

--- Cut here ---
Here is a sample file.
It has aseveral lines.

And more than one paragraph.
--- Cut here ---

when run as:

emacs --no-init-file input --load test.el --batch --quick

but produces the correct output when run as:

emacs --no-init-file input --load test.el --quick

Up to Emacs 24.0.50, it produces the correct output either way.


In GNU Emacs 24.0.94.2 (x86_64-unknown-linux-gnu, GTK+ Version 2.24.10)
 of 2012-03-20 on skwd
Windowing system distributor `The X.Org Foundation', version 11.0.11103000
Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: en_GB.UTF-8
  value of $LC_CTYPE: en_GB.UTF-8
  value of $LC_MESSAGES: en_GB.UTF-8
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_GB.UTF-8
  value of $XMODIFIERS: @im=none
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

Major mode: CPerl

Minor modes in effect:
  TeX-PDF-mode: t
  diff-auto-refine-mode: t
  flymake-mode: t
  flyspell-mode: t
  recentf-mode: t
  show-paren-mode: t
  server-mode: t
  savehist-mode: t
  minibuffer-electric-default-mode: t
  iswitchb-mode: t
  icomplete-mode: t
  global-whitespace-mode: t
  global-auto-revert-mode: t
  desktop-save-mode: t
  tooltip-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
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
C-p C-p C-p C-p C-p C-p C-n C-n C-n C-n C-n C-n C-n 
C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n 
C-n C-n C-n C-x C-f t e s <tab> i n t e <tab> r <backspace> 
b a c k w a <tab> o <tab> <backspace> <backspace> w 
<backspace> - w o <tab> e <tab> <return> C-n <right> 
<right> <right> <right> <right> <right> <right> <right> 
<right> <right> <right> <right> <right> <right> <right> 
<right> <right> <right> <right> <right> <right> <right> 
<right> <right> <right> <left> " ) ; C-x C-s <backspace> 
<backspace> <backspace> <right> <right> <right> <right> 
<right> <right> <right> <right> " ) ; C-x C-s <backspace> 
<backspace> <backspace> <right> <right> <left> " ) 
; C-x C-s <backspace> <backspace> <backspace> C-x C-s 
C-x b r u n <help-echo> C-g C-x C-f <M-backspace> r 
u n <tab> <return> M-> <up> <up> <up> <up> <up> <up> 
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up> 
<up> <up> <help-echo> <down-mouse-1> <mouse-1> <backspace> 
<backspace> <backspace> <backspace> <backspace> <backspace> 
<backspace> <backspace> <backspace> <backspace> <backspace> 
C-x C-s C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ 
C-x C-s <backspace> <backspace> <backspace> <backspace> 
<backspace> <backspace> <backspace> <backspace> <backspace> 
<backspace> <backspace> SPC " - n w " , C-x C-s C-_ 
C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-x C-s 
C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-x C-s 
SPC " - - b a t c h " , C-x C-s M-x e m a c s - b u 
g - <backspace> <backspace> <backspace> <backspace> 
<backspace> <backspace> <backspace> <backspace> <backspace> 
<backspace> r e p o r t - e r m a c s <backspace> <backspace> 
<backspace> <backspace> = <backspace> <backspace> m 
a c s - b u g <return>

Recent messages:
Saving file /home/rrt/Software/zile-stable/tests/run-lisp-tests.pl...
Wrote /home/rrt/Software/zile-stable/tests/run-lisp-tests.pl
Undo! [12 times]
Saving file /home/rrt/Software/zile-stable/tests/run-lisp-tests.pl...
Wrote /home/rrt/Software/zile-stable/tests/run-lisp-tests.pl
Redo! [11 times]
Saving file /home/rrt/Software/zile-stable/tests/run-lisp-tests.pl...
Wrote /home/rrt/Software/zile-stable/tests/run-lisp-tests.pl
Saving file /home/rrt/Software/zile-stable/tests/run-lisp-tests.pl...
Wrote /home/rrt/Software/zile-stable/tests/run-lisp-tests.pl

Load-path shadows:
/home/rrt/.emacs.d/elpa/dictionary-1.8.7/dictionary-init hides /usr/local/share/emacs/24.0.94/site-lisp/dictionary-el/dictionary-init
/home/rrt/.emacs.d/elpa/dictionary-1.8.7/dictionary hides /usr/local/share/emacs/24.0.94/site-lisp/dictionary-el/dictionary
/home/rrt/.emacs.d/elpa/dictionary-1.8.7/link hides /usr/local/share/emacs/24.0.94/site-lisp/dictionary-el/link
/home/rrt/.emacs.d/elpa/dictionary-1.8.7/connection hides /usr/local/share/emacs/24.0.94/site-lisp/dictionary-el/connection
/home/rrt/local/share/emacs/site-lisp/dict hides /usr/local/share/emacs/24.0.94/site-lisp/emacs-goodies-el/dict
/usr/local/share/emacs/24.0.94/site-lisp/auctex/tex-style hides /usr/share/emacs/site-lisp/auctex/tex-style
/usr/local/share/emacs/24.0.94/site-lisp/auctex/tex-mik hides /usr/share/emacs/site-lisp/auctex/tex-mik
/usr/local/share/emacs/24.0.94/site-lisp/auctex/multi-prompt hides /usr/share/emacs/site-lisp/auctex/multi-prompt
/usr/local/share/emacs/24.0.94/site-lisp/auctex/tex-jp hides /usr/share/emacs/site-lisp/auctex/tex-jp
/usr/local/share/emacs/24.0.94/site-lisp/auctex/tex-info hides /usr/share/emacs/site-lisp/auctex/tex-info
/usr/local/share/emacs/24.0.94/site-lisp/auctex/latex hides /usr/share/emacs/site-lisp/auctex/latex
/usr/local/share/emacs/24.0.94/site-lisp/auctex/tex hides /usr/share/emacs/site-lisp/auctex/tex
/usr/local/share/emacs/24.0.94/site-lisp/auctex/texmathp hides /usr/share/emacs/site-lisp/auctex/texmathp
/usr/local/share/emacs/24.0.94/site-lisp/auctex/context-nl hides /usr/share/emacs/site-lisp/auctex/context-nl
/usr/local/share/emacs/24.0.94/site-lisp/auctex/tex-font hides /usr/share/emacs/site-lisp/auctex/tex-font
/usr/local/share/emacs/24.0.94/site-lisp/auctex/toolbar-x hides /usr/share/emacs/site-lisp/auctex/toolbar-x
/usr/local/share/emacs/24.0.94/site-lisp/auctex/tex-buf hides /usr/share/emacs/site-lisp/auctex/tex-buf
/usr/local/share/emacs/24.0.94/site-lisp/auctex/tex-fptex hides /usr/share/emacs/site-lisp/auctex/tex-fptex
/usr/local/share/emacs/24.0.94/site-lisp/auctex/bib-cite hides /usr/share/emacs/site-lisp/auctex/bib-cite
/usr/local/share/emacs/24.0.94/site-lisp/auctex/context-en hides /usr/share/emacs/site-lisp/auctex/context-en
/usr/local/share/emacs/24.0.94/site-lisp/auctex/tex-fold hides /usr/share/emacs/site-lisp/auctex/tex-fold
/usr/local/share/emacs/24.0.94/site-lisp/auctex/tex-bar hides /usr/share/emacs/site-lisp/auctex/tex-bar
/usr/local/share/emacs/24.0.94/site-lisp/auctex/context hides /usr/share/emacs/site-lisp/auctex/context
/usr/local/share/emacs/24.0.94/site-lisp/auctex/font-latex hides /usr/share/emacs/site-lisp/auctex/font-latex

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 doc-view jka-compr dired arc-mode archive-mode
apache-mode vc-dispatcher vc-svn cperl-mode preview prv-emacs tex-buf
noutline outline font-latex latex tex-style tex warnings diff-git
diff-mode inform-mode js byte-opt bytecomp byte-compile cconv macroexp
json imenu thingatpt newcomment cc-mode cc-fonts cc-guess cc-menus
cc-cmds cc-styles cc-align cc-engine cc-vars cc-defs sgml-mode
nxml-uchnm rng-xsd xsd-regexp rng-cmpct image-mode 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 css-mode lua-mode autoconf autoconf-mode flymake compile comint
ansi-color ring vc-git face-remap flyspell smart-quotes make-mode
regexp-opt auto-dictionary-autoloads c-eldoc-autoloads
dictionary-autoloads diff-git-autoloads dired-isearch-autoloads
full-ack-autoloads guess-style-autoloads kill-ring-search-autoloads
magit-autoloads mv-shell-autoloads tumble-autoloads
http-post-simple-autoloads package tabulated-list completing-help
recentf tree-widget wid-edit uniquify paren server savehist
minibuf-eldef iswitchb icomplete whitespace autorevert desktop cus-start
cus-load ropemacs pymacs go-mode-load ispell advice advice-preload
yasnippet help-fns derived edmacro kmacro easymenu assoc cl
muse-autoloads emacs-goodies-el emacs-goodies-custom
emacs-goodies-loaddefs easy-mmode preview-latex tex-site auto-loads
user-site-loaddefs time-date tooltip ediff-hook vc-hooks lisp-float-type
mwheel x-win x-dnd tool-bar dnd fontset image fringe 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 files text-properties overlay sha1 md5 base64
format env code-pages mule custom widget hashtable-print-readable
backquote make-network-process dbusbind dynamic-setting
system-font-setting font-render-setting move-toolbar gtk x-toolkit x
multi-tty emacs)

-- 
http://rrt.sc3d.org/

Message #8 received at 11053 <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: Reuben Thomas <rrt <at> sc3d.org>
Cc: 11053 <at> debbugs.gnu.org
Subject: Re: bug#11053: 24.0.94;
	When run with --batch, Emacs seems to start with point on the second
	line of the given file
Date: Tue, 20 Mar 2012 17:24:33 -0400

Reuben Thomas wrote:

> Here is an interactive test test.el:
>
> ; end-of-line backward-word backward-word a save-buffer save-buffers-kill-emacs
> (execute-kbd-macro "\C-e\M-b\M-ba\C-x\C-s\C-x\C-c")

I think a clearer test case is:

(message "%s" (point))
(what-line)
(move-end-of-line 1)
(message "%s" (point))
(what-line)

which gives the same result for me in 22.1 through to the current trunk;

1
Line 1
45
Line 2

and the "right" result if inhibit-point-motion-hooks is non-nil:

1
Line 1
23
Line 1

> when run as:
>
> emacs --no-init-file input --load test.el --batch --quick
>
> but produces the correct output when run as:
>
> emacs --no-init-file input --load test.el --quick
>
> Up to Emacs 24.0.50, it produces the correct output either way.

Message #11 received at 11053 <at> debbugs.gnu.org (full text, mbox):

From: Reuben Thomas <rrt <at> sc3d.org>
To: Glenn Morris <rgm <at> gnu.org>
Cc: 11053 <at> debbugs.gnu.org
Subject: Re: bug#11053: 24.0.94; When run with --batch, Emacs seems to start
	with point on the second line of the given file
Date: Tue, 20 Mar 2012 21:29:07 +0000

On 20 March 2012 21:24, Glenn Morris <rgm <at> gnu.org> wrote:
> Reuben Thomas wrote:
>
>> Here is an interactive test test.el:
>>
>> ; end-of-line backward-word backward-word a save-buffer save-buffers-kill-emacs
>> (execute-kbd-macro "\C-e\M-b\M-ba\C-x\C-s\C-x\C-c")
>
> I think a clearer test case is:
>
> (message "%s" (point))
> (what-line)
> (move-end-of-line 1)
> (message "%s" (point))
> (what-line)

Thanks for that!

> which gives the same result for me in 22.1 through to the current trunk;
>
> 1
> Line 1
> 45
> Line 2
>
> and the "right" result if inhibit-point-motion-hooks is non-nil:
>
> 1
> Line 1
> 23
> Line 1
>
>> Up to Emacs 24.0.50, it produces the correct output either way.

I was going on a single report that the expected result was obtained
in 24.0.50, which I didn't verify.

-- 
http://rrt.sc3d.org

Message #18 received at 11053 <at> debbugs.gnu.org (full text, mbox):

From: Chong Yidong <cyd <at> gnu.org>
To: Reuben Thomas <rrt <at> sc3d.org>
Cc: 11053 <at> debbugs.gnu.org
Subject: Re: bug#11053: 24.0.94;
	When run with --batch, Emacs seems to start with point on the second
	line of the given file
Date: Wed, 18 Apr 2012 15:04:16 +0800

Reuben Thomas <rrt <at> sc3d.org> writes:

> I noticed this when running the GNU Zile tests, which are also run on
> Emacs to ensure that Zile is slavishly following Emacs's behavior.
>
> Here is an interactive test test.el:
>
> (execute-kbd-macro "\C-e\M-b\M-ba\C-x\C-s\C-x\C-c")

The visual line motion commands won't work in batch mode, because the
screen size is not defined in batch mode.  I changed line-move to use
forward-line in batch mode, which is as good an approximation as we are
likely to get.

Message #25 received at 11053 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Monnier <monnier <at> IRO.UMontreal.CA>
To: Chong Yidong <cyd <at> gnu.org>
Cc: 11053 <at> debbugs.gnu.org, Reuben Thomas <rrt <at> sc3d.org>
Subject: Re: bug#11053: 24.0.94;
	When run with --batch, Emacs seems to start with point on the second
	line of the given file
Date: Thu, 19 Apr 2012 03:55:59 -0400

> The visual line motion commands won't work in batch mode, because the
> screen size is not defined in batch mode.  I changed line-move to use
> forward-line in batch mode, which is as good an approximation as we are
> likely to get.

Wouldn't it be better to change the motion commands instead?


        Stefan

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