--- Begin Message ---
|
Subject: |
26.0.50 [regression]; Curly quotes are not found in some sizes of ‘Terminus’ font |
|
Date: |
Sat, 17 Dec 2016 04:03:07 +0300 |
|
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/26.0.50 (gnu/linux) |
GNU Emacs 26.0.50.1 (x86_64-unknown-linux-gnu)
Repository revision: 6bf83218314db1c63ce34564edfb994d9431b28a
Debian GNU/Linux 8.6 Jessie
xfonts-terminus 4.40-2 as shipped in Debian
Steps to reproduce:
$ emacs --quick --font '-*-terminus-medium-r-*-*-20-*-*-*-*-*-*-*'
Find some document with curly quotes: ‘’ and “”. GNU Emacs Manual (‘<f1> r’)
uses them heavily, for instance.
It looks wrong:
‘C-u C-x =’ says that instead of Terminus
‘x:-misc-fixed-medium-r-normal--20-200-75-75-c-100-iso10646-1’ font is used for
rendering quotes. When I request 24th size, I got yet another font —
‘x:-efont-fixed-medium-r-normal--24-240-75-75-c-240-iso10646-1’.
In a strange way there is no such a problem with some other sizes:
$ emacs --quick --font '-*-terminus-medium-r-*-*-16-*-*-*-*-*-*-*'
is okay, for example. ‘C-u C-x =’ says that
‘xft:-xos4-Terminus-normal-normal-normal-*-16-*-*-*-c-80-iso10646-1’ is used in
that case.
The reason is *not* that Terminus just does not have these glyphs — it does.
Moreover — GNU Emacs 24.4.1 finds and renders them correctly:
$ emacs24 --quick --font '-*-terminus-medium-r-*-*-20-*-*-*-*-*-*-*'
--- End Message ---
--- Begin Message ---
|
Subject: |
Re: bug#25216: 26.0.50 [regression]; Curly quotes are not found in some sizes of ‘Terminus’ font |
|
Date: |
Mon, 25 Nov 2019 18:16:40 +0200 |
> From: Dmitry Alexandrov <address@hidden>
> Cc: address@hidden, address@hidden
> Date: Wed, 20 Nov 2019 18:01:48 +0300
>
> Eli Zaretskii <address@hidden> wrote:
> >> > There was no response to this -- was any further progress made?
> >>
> >> On my side: sorry, no. I am fine with the workaround:
> >>
> >> Emacs.fontBackend: xft
> >>
> >> (in ~/.Xresources).
> >
> > Could you try the master branch, after making sure you have HarfBuzz
> > installed? The xft font backend is going to be much less important
> > starting with Emacs 27, so I'd like to know whether this problerm exists
> > with HarfBuzz
>
> Yes, the problem is still here, symptoms are the same, except that Terminus
> is now loaded via harfbuzz:
>
> xfthb:-xos4-Terminus-normal-normal-normal-*-18-*-*-*-c-100-iso10646-1
> ^^
>
> The same workaround works as well:
>
> Emacs.fontBackend: xfthb
I've built the latest version 4.48 of the Terminus font on MS-Windows
and tried it with Emacs 27. I couldn't reproduce the problem reported
with the xft or xfthb font backends: no matter what size of the font I
tried, the curly quote characters came from the same font. I do see
that, since this font is bitmapped, i.e. not TrueType, Emacs on
Windows uses the GDI font backend to display it, not the default
HarfBuzz backend.
So I think what you see is something specific to the libxft2 library.
And since this discussion identified at least 2 workarounds: either
customize the fontset, or force the single xft backend in .Xresources,
I think this bug can be closed now.
Thanks.
--- End Message ---