bug#14547: Fwd: bug#14547: 24.3.1; line-break with pixel specification and word-wrap

[E Sabof]

---------- Forwarded message ----------
From: E Sabof <esabof@gmail.com>
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@gnu.org>

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@gnu.org> wrote:

> Date: Mon, 3 Jun 2013 14:21:00 +0100
> From: E Sabof <esabof@gmail.com>
>
> 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.