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Re: Face issue -- possible bug
From: |
Joost Kremers |
Subject: |
Re: Face issue -- possible bug |
Date: |
Tue, 17 Jul 2018 23:23:08 +0200 |
User-agent: |
mu4e 1.1.0; emacs 26.1.50 |
On Tue, Jul 17 2018, Eli Zaretskii wrote:
Note how the first glyph of the composition data with the "bad"
font
has zero as its 3rd component, whereas the "good" font has 110
there,
which is the codepoint of 'n'. Having zero there is not really
normal, I think.
I downloaded the Libertine O font and tried that on MS-Windows.
I
don't see this problem there with that font. So based on that,
and on
the fact that another font displays this combination correctly
on your
system, my primary suspect is neither Emacs nor the font, but
the
shaping engine we use to compose characters. On GNU/Linux we
use
libm17n-flt as the shaping engine, so the first step is to make
sure
you have its latest version installed. I think the latest
version is
only available in the CVS repository, which you can access
through
Savannah:
http://savannah.nongnu.org/projects/m17n/
If installing the latest version doesn't help, it might be a bug
in
libm17n-flt, so I'm CC'ing Handa-san who might be able to help
fix
this.
I'm actually having trouble accessing the sources. The invocation
cvs -z3 -d:pserver:address@hidden:/sources/m17n
co m17n
as described at <http://savannah.nongnu.org/cvs/?group=m17n>
just gives me an empty CVS repository. Substituting `m17n-lib' for
`m17n' does seem to checkout the sources, but the newest source
files there are from 2014. (Which is why I said "seem to check out
the sources", but I have no experience with CVS, so I may be doing
something silly.)
According to <https://www.nongnu.org/m17n/>, that would correspond
to version 1.17, released in 2014, which also happens to be the
version installed on my Linux system (which is based on Ubuntu
16.04). That www page also lists a version 1.18, from February of
this year. I can try and install that, if you think it makes
sense.
(Actually, the package installed on my system is called libm17n,
not libm17n-flt, not sure if that matters.)
TIA
--
Joost Kremers
Life has its moments