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From: Eli Zaretskii <eliz@gnu.org>
To: Werner LEMBERG <wl@gnu.org>
Cc: 33885@debbugs.gnu.org
Subject: bug#33885: 27.0.50; PUA character makes emacs crash
Date: Fri, 28 Dec 2018 21:15:19 +0200	[thread overview]
Message-ID: <83r2e15upk.fsf@gnu.org> (raw)
In-Reply-To: <20181228.180311.772225120008653742.wl@gnu.org> (message from Werner LEMBERG on Fri, 28 Dec 2018 18:03:11 +0100 (CET))

> Date: Fri, 28 Dec 2018 18:03:11 +0100 (CET)
> Cc: 33885@debbugs.gnu.org
> From: Werner LEMBERG <wl@gnu.org>
> 
> >> (2) Improve the heuristics to get sensible global ascent and
> >>     descent values of a font.  In particular, use the FreeType
> >>     library to access a TrueType's or OpenType's `OS/2' table and
> >>     compare its vertical metrics values with the `hhea' data to
> >>     eliminate bugs in the font – sign problems with `descent' do
> >>     happen especially in older fonts that were either designed for
> >>     Apple or for Windows, and the fields for the `other' OS were
> >>     filled out arbitrarily, more or less.
> > 
> > I'd appreciate more details on how this could be done.  I'm no
> > expert on fonts nor on FreeType, and last I checked we have no one
> > else.
> 
> A possible workflow.

Thanks, I will see what I can do about this.  Or maybe someone else
will beat me to it.





  parent reply	other threads:[~2018-12-28 19:15 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-12-27  8:54 bug#33885: 27.0.50; PUA character makes emacs crash Werner LEMBERG
2018-12-27 10:36 ` Eli Zaretskii
2018-12-27 11:33   ` Eli Zaretskii
2018-12-28  8:33   ` Werner LEMBERG
2018-12-28  9:16     ` Eli Zaretskii
2018-12-28 12:38       ` Werner LEMBERG
2018-12-28 13:30         ` Eli Zaretskii
2018-12-28 14:58           ` Werner LEMBERG
2018-12-28 15:33             ` Eli Zaretskii
2018-12-28 17:03               ` Werner LEMBERG
2018-12-28 17:06                 ` Werner LEMBERG
2018-12-28 19:15                 ` Eli Zaretskii [this message]
2022-02-12  8:42 ` Lars Ingebrigtsen
2022-02-12  8:57   ` Eli Zaretskii
2022-03-12 22:43     ` Lars Ingebrigtsen

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