GNU bug report logs - #13399
24.3.50; Word-wrap can't wrap at zero-width space U-200B

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From: Eli Zaretskii <eliz <at> gnu.org>
To: martin rudalics <rudalics <at> gmx.at>
Cc: monnier <at> iro.umontreal.ca, 13399 <at> debbugs.gnu.org
Subject: bug#13399: 24.3.50; Word-wrap can't wrap at zero-width space U-200B
Date: Sat, 12 Jan 2013 20:38:35 +0200

> Date: Sat, 12 Jan 2013 19:01:16 +0100
> From: martin rudalics <rudalics <at> gmx.at>
> CC: monnier <at> iro.umontreal.ca, 13399 <at> debbugs.gnu.org
> 
> Still `fit-window-to-buffer' would benefit from a function that returned
> either the pixel height needed for displaying the region or its number
> of canonical line units.  Obviously, the former would be preferable when
> we switch to pixel-sized windows.

Would something like this be good enough?

  (save-excursion
    (move-beginning-of-line 1)
    (setq pos1 (posn-at-point)))
  (save-excursion
    (move-beginning-of-line 2)
    (setq pos2 (posn-at-point)))

Then use the Y member of the returned information in pos1 and pos2.
(Alternatively, you could do something similar with
pos-visible-in-window-p instead of posn-at-point.)  Will this fit the
bill?

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