bug#14853: 24.3.50; fill-paragraph doesn't account for whitespace quite right

bug#14853: 24.3.50; fill-paragraph doesn't account for whitespace quite right

[Barry OReilly]

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Let foo.txt have this text:

xxxxx xx x xxxxxxx xxxx xxxx xxxxxx xxx xxxxxxx xxxxxxxxxx. xxxxx xx x
xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xx x xxxxxxx xx
xxxxxxxxxxxxxx. xxxx xxxxxxxxxx xxxxx x xxxxxxxx xxxxxx xxx xxxx xxx'x
xxx xxx xxxx xxxxx xxxxxxxx xxxxx.

Select all of the text and execute the fill-paragraph command.

Expected:

xxxxx xx x xxxxxxx xxxx xxxx xxxxxx xxx xxxxxxx xxxxxxxxxx. xxxxx xx x
xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xx x xxxxxxx xx xxxxxxxxxxxxxx.
xxxx xxxxxxxxxx xxxxx x xxxxxxxx xxxxxx xxx xxxx xxx'x xxx xxx xxxx
xxxxx xxxxxxxx xxxxx.

But it leaves it unchanged. It seems to let the space following the
period unduly influence whether to pull the word up to the second
line.

---

In GNU Emacs 24.3.50.1 (x86_64-unknown-linux-gnu, GTK+ Version 2.10.4)
 of 2013-06-18 on psd15
Windowing system distributor `The X.Org Foundation', version 11.0.70101000
System Description:    Red Hat Enterprise Linux Client release 5.4 (Tikanga)

Configured using:
 `configure
 --prefix=/redacted/user/boreilly/sw/emacs-install-trunk-20899d085afe62520113b5acbfe3dbba57823dc9
 --with-gif=no'

Important settings:
  value of $LANG: en_US.UTF-8
  value of $XMODIFIERS: @im=none
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

Major mode: Text

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
  transient-mark-mode: t

Recent input:
<help-echo> <help-echo> <help-echo> <help-echo> <down-mouse-1>
<mouse-movement> <mouse-movement> <drag-mouse-1> M-q
<down-mouse-1> <mouse-1> M-x r e p o r t <tab> <re
turn>

Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.
foo.txt has auto save data; consider M-x recover-this-file

Load-path shadows:
None found.

Features:
(shadow sort nadvice gnus-util mail-extr emacsbug message format-spec
rfc822 mml easymenu 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 time-date tooltip 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 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 dbusbind dynamic-setting
system-font-setting font-render-setting move-toolbar gtk x-toolkit x
multi-tty emacs)

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bug#14853: 24.3.50; fill-paragraph doesn't account for whitespace quite right

[Andreas Schwab]

See sentence-end-double-space.

Andreas.

-- 
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
"And now for something completely different."

bug#14853: 24.3.50; fill-paragraph doesn't account for whitespace quite right

[Barry OReilly]

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On Fri, Jul 12, 2013 at 1:18 PM, Andreas Schwab <schwab@linux-m68k.org>wrote:

> See sentence-end-double-space.
>
>
Does it matter when the period is going at the end of the line? In that
case there are zero spaces after it. Anyway, I reproduced the issue with
sentence-end-double-space t and nil.

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bug#14853: 24.3.50; fill-paragraph doesn't account for whitespace quite right

[npostavs]

tags 14853 notabug
quit

Barry OReilly <gundaetiapo@gmail.com> writes:

> On Fri, Jul 12, 2013 at 1:18 PM, Andreas Schwab <schwab@linux-m68k.org>wrote:
>
>> See sentence-end-double-space.
>>
>>
> Does it matter when the period is going at the end of the line? In that
> case there are zero spaces after it. Anyway, I reproduced the issue with
> sentence-end-double-space t and nil.

With sentence-double-end-space t this

xxxxx xx x xxxxxxx xxxx xxxx xxxxxx xxx xxxxxxx xxxxxxxxxx.  xxxx xx x
xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xx x xxxxxxx xx
xxxxxxxxxxxxxx.  xxx xxxxxxxxxx xxxxx x xxxxxxxx xxxxxx xxx xxxx xxx'x
xxx xxx xxxx xxxxx xxxxxxxx xxxxx.

fills to

xxxxx xx x xxxxxxx xxxx xxxx xxxxxx xxx xxxxxxx xxxxxxxxxx.  xxxx xx x
xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xx x xxxxxxx xx xxxxxxxxxxxxxx.
xxx xxxxxxxxxx xxxxx x xxxxxxxx xxxxxx xxx xxxx xxx'x xxx xxx xxxx
xxxxx xxxxxxxx xxxxx.

so notabug?

bug#14853: 24.3.50; fill-paragraph doesn't account for whitespace quite right

[Stefan Kangas]

npostavs@users.sourceforge.net writes:

> tags 14853 notabug
> quit
>
> Barry OReilly <gundaetiapo@gmail.com> writes:
>
>> On Fri, Jul 12, 2013 at 1:18 PM, Andreas Schwab <schwab@linux-m68k.org>wrote:
>>
>>> See sentence-end-double-space.
>>>
>>>
>> Does it matter when the period is going at the end of the line? In that
>> case there are zero spaces after it. Anyway, I reproduced the issue with
>> sentence-end-double-space t and nil.
>
> With sentence-double-end-space t this
>
> xxxxx xx x xxxxxxx xxxx xxxx xxxxxx xxx xxxxxxx xxxxxxxxxx.  xxxx xx x
> xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xx x xxxxxxx xx
> xxxxxxxxxxxxxx.  xxx xxxxxxxxxx xxxxx x xxxxxxxx xxxxxx xxx xxxx xxx'x
> xxx xxx xxxx xxxxx xxxxxxxx xxxxx.
>
> fills to
>
> xxxxx xx x xxxxxxx xxxx xxxx xxxxxx xxx xxxxxxx xxxxxxxxxx.  xxxx xx x
> xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xx x xxxxxxx xx xxxxxxxxxxxxxx.
> xxx xxxxxxxxxx xxxxx x xxxxxxxx xxxxxx xxx xxxx xxx'x xxx xxx xxxx
> xxxxx xxxxxxxx xxxxx.
>
> so notabug?

Yes.  When sentence-end-double-space is nil on current master, this
text from the original report:

xxxxx xx x xxxxxxx xxxx xxxx xxxxxx xxx xxxxxxx xxxxxxxxxx. xxxx xx x
xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xx x xxxxxxx
xxxxxxxxxxxxxxxx. xxx xxxxxxxxxx xxxxx x xxxxxxxx xxxxxx xxx xxxx
xxx'x xxx xxx xxxx xxxxx xxxxxxxx xxxxx.

Fills to this:

xxxxx xx x xxxxxxx xxxx xxxx xxxxxx xxx xxxxxxx xxxxxxxxxx. xxxx xx x
xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xx x xxxxxxx xxxxxxxxxxxxxxxx.
xxx xxxxxxxxxx xxxxx x xxxxxxxx xxxxxx xxx xxxx xxx'x xxx xxx xxxx
xxxxx xxxxxxxx xxxxx.

This is what was indicated as expected in the original report.  I'm
therefore closing this bug.

Thanks,
Stefan Kangas