longlines mode and kill-line: missing space between boundary words

["Jacek Chrząszcz" <chrzaszcz@mimuw.edu.pl>]

Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.

Your bug report will be posted to the emacs-pretest-bug@gnu.org mailing list.

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

In longlines mode when I press C-k (i.e. a kill-line command) in a
long paragraph with soft linebreaks and then press C-y to yank the
killed line somewhere, the spaces between the words on soft-broken
lines' boundaries disapear.

For example: suppose the paragraph below has soft linebreaks (and not
hard) then when I put the cursor on the first line and press C-k C-y I
should get exactly the same paragraph.

Lazy fox jumped over crazy dogs Lazy fox jumped over crazy dogs Lazy
fox jumped over crazy dogs Lazy fox jumped over crazy dogs Lazy fox
jumped over crazy dogs Lazy fox jumped over crazy dogs Lazy fox jumped
over crazy dogs

And what I get is:

Lazy fox jumped over crazy dogs Lazy fox jumped over crazy dogs
Lazyfox jumped over crazy dogs Lazy fox jumped over crazy dogs Lazy
fox jumped over crazy dogs Lazy fox jumped over crazy dogs Lazy fox
jumped over crazy dogs

(with again soft-breaks at end of lines). Remark "Lazyfox" on the second line.

I guess after kill-line the longline mode automatically compresses the
soft-linebreak at the end of the line (because the space is
temporarily turned into a soft linebreak) and the information about
the space does not get into the kill ring.

The consistent behaviour would be either to add the missing space to
the kill ring or (it that is impossible or too hard) to kill the whole
paragraph at once (since it in fact is a single line). The first
behaviour clearly looks better to me.

Although I am using emacs 23 now (from
http://peadrop.com/blog/2007/01/06/pretty-emacs under Ubuntu 7.04), I
get the same behaviour in ubuntu-distributed emacs 21 as well.

Cheers,

Jacek

If Emacs crashed, and you have the Emacs process in the gdb debugger,
please include the output from the following gdb commands:
    `bt full' and `xbacktrace'.
If you would like to further debug the crash, please read the file
/usr/share/emacs/23.0.0/etc/DEBUG for instructions.


In GNU Emacs 23.0.0.1 (i486-pc-linux-gnu, GTK+ Version 2.10.11)
 of 2007-07-06 on helios
Windowing system distributor `The X.Org Foundation', version 11.0.70200000
configured using `configure  '--build' 'i486-linux-gnu' '--host'
'i486-linux-gnu' '--prefix=/usr' '--sharedstatedir=/var/lib'
'--libexecdir=/usr/lib' '--localstatedir=/var'
'--infodir=/usr/share/info' '--mandir=/usr/share/man' '--with-pop=yes'
'--enable-locallisppath=/etc/emacs-snapshot:/etc/emacs:/usr/local/share/emacs/23.0.0/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/23.0.0/site-lisp:/usr/share/emacs/site-lisp:/usr/share/emacs/23.0.0/leim'
'--with-x=yes' '--with-x-toolkit=gtk' '--enable-font-backend'
'--with-xft' '--with-freetype' 'build_alias=i486-linux-gnu'
'host_alias=i486-linux-gnu' 'CC=gcc' 'CFLAGS=-DDEBIAN
-DSITELOAD_PURESIZE_EXTRA=5000 -g -O2''

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: pl_PL.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default-enable-multibyte-characters: t

Major mode: Text

Minor modes in effect:
  longlines-mode: t
  shell-dirtrack-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  use-hard-newlines: 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-compression-mode: t
  line-number-mode: t

Recent input:
<down-mouse-1> <mouse-1> C-x C-f p l i k <tab> . <tab>
t x t <return> <down-mouse-2> <mouse-2> s M-x l o n
g <tab> <return> <up> <up> C-a <right> <right> <right>
<right> SPC <up> C-k C-y <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <menu-bar>
<help-menu> <report-emacs-bug>

Recent messages:
Loading /usr/share/emacs/23.0.0/lisp/longlines.el.gz...
Loading jka-compr...done
uncompressing longlines.el.gz...done
Loading easy-mmode...done
Loading /usr/share/emacs/23.0.0/lisp/longlines.el.gz...done
Longlines mode enabled
Mark set
Loading emacsbug...
Loading regexp-opt...done
Loading emacsbug...done