GNU bug report logs - #14547
24.3.1; line-break with pixel specification and word-wrap

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Package: emacs; Severity: minor; Reported by: E Sabof <esabof@HIDDEN>; dated Mon, 3 Jun 2013 13:24:02 UTC; Maintainer for emacs is bug-gnu-emacs@HIDDEN.

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Date: Mon, 03 Jun 2013 20:51:36 +0300
From: Eli Zaretskii <eliz@HIDDEN>
Subject: Re: bug#14547: 24.3.1;
	line-break with pixel specification and word-wrap
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> Date: Mon, 3 Jun 2013 18:19:50 +0100
> From: E Sabof <esabof@HIDDEN>
> Cc: 14547 <at> debbugs.gnu.org
> 
> The line shouldn't break. If the cursor is placed immediately after the
> horizontal line, it should be displayed on the fringe.

That's a missing feature at best: cursor on the fringe is not
supported when word-wrap is in effect.  See bug #2479.





Information forwarded to bug-gnu-emacs@HIDDEN:
bug#14547; Package emacs. Full text available.

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Subject: Re: bug#14547: 24.3.1;
	line-break with pixel specification and word-wrap
From: E Sabof <esabof@HIDDEN>
To: Eli Zaretskii <eliz@HIDDEN>
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On Mon, Jun 3, 2013 at 6:10 PM, Eli Zaretskii <eliz@HIDDEN> wrote:

> [Why personal email?]
>

Pressed the wrong button. I've forwarded the message to the bug tracker.


> > Date: Mon, 3 Jun 2013 17:57:23 +0100
> > From: E Sabof <esabof@HIDDEN>
> >
> > I don't think there is any ambiguity in this case - it DTRT unless both
> > word-wrap and visual-line are on.
>
> Sorry, I don't understand.  What is TRT, and what do you expect it to
> do when visual-line-mode and word-wrap are on?
>

The line shouldn't break. If the cursor is placed immediately after the
horizontal line, it should be displayed on the fringe.

Evgeni

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<div dir=3D"ltr">On Mon, Jun 3, 2013 at 6:10 PM, Eli Zaretskii <span dir=3D=
"ltr">&lt;<a href=3D"mailto:eliz@HIDDEN" target=3D"_blank">eliz@HIDDEN</a=
>&gt;</span> wrote:<br><div class=3D"gmail_extra"><div class=3D"gmail_quote=
"><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:=
1px #ccc solid;padding-left:1ex">
[Why personal email?]<br></blockquote><div><br></div><div>Pressed the wrong=
 button. I&#39;ve forwarded the message to the bug tracker.=A0</div><div>=
=A0</div><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;borde=
r-left:1px #ccc solid;padding-left:1ex">

&gt; Date: Mon, 3 Jun 2013 17:57:23 +0100<br>
&gt; From: E Sabof &lt;<a href=3D"mailto:esabof@HIDDEN">esabof@HIDDEN=
</a>&gt;<br>
&gt;<br>
<div class=3D"im">&gt; I don&#39;t think there is any ambiguity in this cas=
e - it DTRT unless both<br>
&gt; word-wrap and visual-line are on.<br>
<br>
</div>Sorry, I don&#39;t understand. =A0What is TRT, and what do you expect=
 it to<br>
do when visual-line-mode and word-wrap are on?<br></blockquote><div><br></d=
iv><div>The line shouldn&#39;t break. If the cursor is placed immediately a=
fter the horizontal line, it should be displayed on the fringe.</div></div>
<br></div><div class=3D"gmail_extra">Evgeni</div></div>

--001a11c3786413e8da04de432c93--




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Date: Mon, 03 Jun 2013 20:10:32 +0300
From: Eli Zaretskii <eliz@HIDDEN>
Subject: Re: bug#14547: 24.3.1;
	line-break with pixel specification and word-wrap
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[Why personal email?]

> Date: Mon, 3 Jun 2013 17:57:23 +0100
> From: E Sabof <esabof@HIDDEN>
> 
> I don't think there is any ambiguity in this case - it DTRT unless both
> word-wrap and visual-line are on.

Sorry, I don't understand.  What is TRT, and what do you expect it to
do when visual-line-mode and word-wrap are on?




Information forwarded to bug-gnu-emacs@HIDDEN:
bug#14547; Package emacs. Full text available.

Message received at 14547 <at> debbugs.gnu.org:


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Subject: Fwd: bug#14547: 24.3.1;
	line-break with pixel specification and word-wrap
From: E Sabof <esabof@HIDDEN>
To: 14547 <at> debbugs.gnu.org
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---------- Forwarded message ----------
From: E Sabof <esabof@HIDDEN>
Date: Mon, Jun 3, 2013 at 5:57 PM
Subject: Re: bug#14547: 24.3.1; line-break with pixel specification and
word-wrap
To: Eli Zaretskii <eliz@HIDDEN>


I don't think there is any ambiguity in this case - it DTRT unless both
word-wrap and visual-line are on.

Evgeni


On Mon, Jun 3, 2013 at 5:07 PM, Eli Zaretskii <eliz@HIDDEN> wrote:

> > Date: Mon, 3 Jun 2013 14:21:00 +0100
> > From: E Sabof <esabof@HIDDEN>
> >
> > If one executes the following in a graphical frame, the line will break:
> >
> > (insert (propertize
> >            "\n"
> >            'display `(space :align-to (- right))
> >            'face '(:underline t))
> >           "\n")
> >
> > (toggle-word-wrap 1)
> >
> > If one makes the line one pixel shorter, it will work fine.
> >
> > (insert (propertize
> >            "\n"
> >            'display `(space :align-to (- right (1)))
> >            'face '(:underline t))
> >           "\n")
> >
> > (toggle-word-wrap 1)
>
> Isn't that the same issue as discussed in this old bug:
>
>   http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9530
>
> IOW, you cannot align-to the right margin, because this leaves no
> place to display anything.
>

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<div dir=3D"ltr"><br><br><div class=3D"gmail_quote">---------- Forwarded me=
ssage ----------<br>From: <b class=3D"gmail_sendername">E Sabof</b> <span d=
ir=3D"ltr">&lt;<a href=3D"mailto:esabof@HIDDEN">esabof@HIDDEN</a>&gt;=
</span><br>
Date: Mon, Jun 3, 2013 at 5:57 PM<br>Subject: Re: bug#14547: 24.3.1; line-b=
reak with pixel specification and word-wrap<br>To: Eli Zaretskii &lt;<a hre=
f=3D"mailto:eliz@HIDDEN">eliz@HIDDEN</a>&gt;<br><br><br><div dir=3D"ltr">
I don&#39;t think there is any ambiguity in this case - it DTRT unless both=
 word-wrap and visual-line are on.<br><div><br></div><div>Evgeni</div></div=
><div class=3D"HOEnZb"><div class=3D"h5"><div class=3D"gmail_extra"><br><br=
><div class=3D"gmail_quote">

On Mon, Jun 3, 2013 at 5:07 PM, Eli Zaretskii <span dir=3D"ltr">&lt;<a href=
=3D"mailto:eliz@HIDDEN" target=3D"_blank">eliz@HIDDEN</a>&gt;</span> wrot=
e:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-l=
eft:1px #ccc solid;padding-left:1ex">

&gt; Date: Mon, 3 Jun 2013 14:21:00 +0100<br>
&gt; From: E Sabof &lt;<a href=3D"mailto:esabof@HIDDEN" target=3D"_blank=
">esabof@HIDDEN</a>&gt;<br>
&gt;<br>
&gt; If one executes the following in a graphical frame, the line will brea=
k:<br>
&gt;<br>
&gt; (insert (propertize<br>
&gt; =A0 =A0 =A0 =A0 =A0 =A0&quot;\n&quot;<br>
&gt; =A0 =A0 =A0 =A0 =A0 =A0&#39;display `(space :align-to (- right))<br>
&gt; =A0 =A0 =A0 =A0 =A0 =A0&#39;face &#39;(:underline t))<br>
&gt; =A0 =A0 =A0 =A0 =A0 &quot;\n&quot;)<br>
&gt;<br>
&gt; (toggle-word-wrap 1)<br>
&gt;<br>
&gt; If one makes the line one pixel shorter, it will work fine.<br>
&gt;<br>
&gt; (insert (propertize<br>
&gt; =A0 =A0 =A0 =A0 =A0 =A0&quot;\n&quot;<br>
&gt; =A0 =A0 =A0 =A0 =A0 =A0&#39;display `(space :align-to (- right (1)))<b=
r>
&gt; =A0 =A0 =A0 =A0 =A0 =A0&#39;face &#39;(:underline t))<br>
&gt; =A0 =A0 =A0 =A0 =A0 &quot;\n&quot;)<br>
&gt;<br>
&gt; (toggle-word-wrap 1)<br>
<br>
Isn&#39;t that the same issue as discussed in this old bug:<br>
<br>
=A0 <a href=3D"http://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D9530" target=
=3D"_blank">http://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D9530</a><br>
<br>
IOW, you cannot align-to the right margin, because this leaves no<br>
place to display anything.<br>
</blockquote></div><br></div>
</div></div></div><br></div>

--001a11c27bbecd661804de42e076--




Information forwarded to bug-gnu-emacs@HIDDEN:
bug#14547; Package emacs. Full text available.

Message received at 14547 <at> debbugs.gnu.org:


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From: Stephen Berman <stephen.berman@HIDDEN>
To: Eli Zaretskii <eliz@HIDDEN>
Subject: Re: bug#14547: 24.3.1;
	line-break with pixel specification and word-wrap
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	<83d2s3xjo5.fsf@HIDDEN>
Date: Mon, 03 Jun 2013 18:27:36 +0200
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	2013 19:07:06 +0300")
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On Mon, 03 Jun 2013 19:07:06 +0300 Eli Zaretskii <eliz@HIDDEN> wrote:

>> Date: Mon, 3 Jun 2013 14:21:00 +0100
>> From: E Sabof <esabof@HIDDEN>
>> 
>> If one executes the following in a graphical frame, the line will break:
>> 
>> (insert (propertize
>>            "\n"
>>            'display `(space :align-to (- right))
>>            'face '(:underline t))
>>           "\n")
>> 
>> (toggle-word-wrap 1)
>> 
>> If one makes the line one pixel shorter, it will work fine.
>> 
>> (insert (propertize
>>            "\n"
>>            'display `(space :align-to (- right (1)))
>>            'face '(:underline t))
>>           "\n")
>> 
>> (toggle-word-wrap 1)
>
> Isn't that the same issue as discussed in this old bug:
>
>   http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9530
>
> IOW, you cannot align-to the right margin, because this leaves no
> place to display anything.

I think it's a manifestation of bug#2749, because I see no line break
with this recipe in Emacs built with my patch enabling
overflow-newline-into-fringe in visual-line-mode.

Steve Berman




Information forwarded to bug-gnu-emacs@HIDDEN:
bug#14547; Package emacs. Full text available.

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Date: Mon, 03 Jun 2013 19:07:06 +0300
From: Eli Zaretskii <eliz@HIDDEN>
Subject: Re: bug#14547: 24.3.1;
	line-break with pixel specification and word-wrap
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> Date: Mon, 3 Jun 2013 14:21:00 +0100
> From: E Sabof <esabof@HIDDEN>
> 
> If one executes the following in a graphical frame, the line will break:
> 
> (insert (propertize
>            "\n"
>            'display `(space :align-to (- right))
>            'face '(:underline t))
>           "\n")
> 
> (toggle-word-wrap 1)
> 
> If one makes the line one pixel shorter, it will work fine.
> 
> (insert (propertize
>            "\n"
>            'display `(space :align-to (- right (1)))
>            'face '(:underline t))
>           "\n")
> 
> (toggle-word-wrap 1)

Isn't that the same issue as discussed in this old bug:

  http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9530

IOW, you cannot align-to the right margin, because this leaves no
place to display anything.




Information forwarded to bug-gnu-emacs@HIDDEN:
bug#14547; Package emacs. Full text available.

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Subject: 24.3.1; line-break with pixel specification and word-wrap
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--047d7bf0de88f1a3c304de3fd567
Content-Type: text/plain; charset=ISO-8859-1

If one executes the following in a graphical frame, the line will break:

(insert (propertize
           "\n"
           'display `(space :align-to (- right))
           'face '(:underline t))
          "\n")

(toggle-word-wrap 1)

If one makes the line one pixel shorter, it will work fine.

(insert (propertize
           "\n"
           'display `(space :align-to (- right (1)))
           'face '(:underline t))
          "\n")

(toggle-word-wrap 1)

Evgeni

--047d7bf0de88f1a3c304de3fd567
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">If one executes the following in a graphical frame, the li=
ne will break:<div><br></div><div><div>(insert (propertize</div><div>=A0 =
=A0 =A0 =A0 =A0 =A0&quot;\n&quot;</div><div>=A0 =A0 =A0 =A0 =A0 =A0&#39;dis=
play `(space :align-to (- right))</div>
<div>=A0 =A0 =A0 =A0 =A0 =A0&#39;face &#39;(:underline t))</div><div>=A0 =
=A0 =A0 =A0 =A0 &quot;\n&quot;)</div></div><div><br></div><div>(toggle-word=
-wrap 1)</div><div><br></div><div>If one makes the line one pixel shorter, =
it will work fine.</div>
<div><br></div><div><div>(insert (propertize</div><div>=A0 =A0 =A0 =A0 =A0 =
=A0&quot;\n&quot;</div><div>=A0 =A0 =A0 =A0 =A0 =A0&#39;display `(space :al=
ign-to (- right (1)))</div><div>=A0 =A0 =A0 =A0 =A0 =A0&#39;face &#39;(:und=
erline t))</div><div>=A0 =A0 =A0 =A0 =A0 &quot;\n&quot;)</div>
</div><div><br></div><div>(toggle-word-wrap 1)<br></div><div><br></div><div=
>Evgeni</div></div>

--047d7bf0de88f1a3c304de3fd567--




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