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bug#19993: 25.0.50; Unicode fonts defective on Windows
From: |
Ilya Zakharevich |
Subject: |
bug#19993: 25.0.50; Unicode fonts defective on Windows |
Date: |
Sun, 8 Mar 2015 00:38:05 -0800 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Sat, Mar 07, 2015 at 10:18:25AM +0200, Eli Zaretskii wrote:
> > > (set-fontset-font "fontset-default" '(#x1d400 . #x1d7ff) "Symbola")
> >
> > I do not follow. What is going on now? Are you saying that it should
> > NOT work out-of-the-box?
>
> On the slim chance that you'd like this to work for you, and didn't
> yet figure it out, I described what worked for me.
It would be nice if there was a recipe which works for everyone.
(After this, one could make it a default. ;-)
But the major hurdle is that the semantic of fontsets is completely
undocumented. After your suggestions, I think I arrived at some
description which does not contradict anything I have seen:
=======================================================
When Emacs wants to show a character using a fontset:
• Emacs looks in the fontset and finds the font specifications associated
to this character.
• Emacs checks which Unicode Subset contains the given character.
(What if not unique???)
• From fonts matching the font specifications, Emacs picks up those
which have this Unicode Subset “identified” within the font.
• From these, Emacs choses one (which?).
Emacs uses this procedure for two fontsets: the currently enabled one, and
the default fontset. If none of two obtained fonts supports the given
character, a HEX representation is shown.
=======================================================
Is it similar to what actually happens? (I’m not asking about the
implementation, just whether there is a functional equivalence.)
Ilya
- bug#19993: 25.0.50; Unicode fonts defective on Windows, (continued)
- bug#19993: 25.0.50; Unicode fonts defective on Windows, Eli Zaretskii, 2015/03/06
- bug#19993: 25.0.50; Unicode fonts defective on Windows, Ilya Zakharevich, 2015/03/06
- bug#19993: 25.0.50; Unicode fonts defective on Windows, Eli Zaretskii, 2015/03/06
- bug#19993: 25.0.50; Unicode fonts defective on Windows, Ilya Zakharevich, 2015/03/06
- bug#19993: 25.0.50; Unicode fonts defective on Windows, Eli Zaretskii, 2015/03/06
- bug#19993: 25.0.50; Unicode fonts defective on Windows, Eli Zaretskii, 2015/03/06
- bug#19993: 25.0.50; Unicode fonts defective on Windows, Ilya Zakharevich, 2015/03/06
- bug#19993: 25.0.50; Unicode fonts defective on Windows, Eli Zaretskii, 2015/03/07
- bug#19993: 25.0.50; Unicode fonts defective on Windows, Ilya Zakharevich, 2015/03/08
- bug#19993: 25.0.50; Unicode fonts defective on Windows, Eli Zaretskii, 2015/03/08
- bug#19993: 25.0.50; Unicode fonts defective on Windows,
Ilya Zakharevich <=
- bug#19993: 25.0.50; Unicode fonts defective on Windows, Ilya Zakharevich, 2015/03/08
- bug#19993: 25.0.50; Unicode fonts defective on Windows, Ilya Zakharevich, 2015/03/10
- bug#19993: 25.0.50; Unicode fonts defective on Windows, Eli Zaretskii, 2015/03/10
- bug#19993: 25.0.50; Unicode fonts defective on Windows, Eli Zaretskii, 2015/03/10
- bug#19993: 25.0.50; Unicode fonts defective on Windows, Ilya Zakharevich, 2015/03/10
- bug#19993: 25.0.50; Unicode fonts defective on Windows, Eli Zaretskii, 2015/03/11
- bug#19993: 25.0.50; Unicode fonts defective on Windows, Ilya Zakharevich, 2015/03/11
- bug#19993: 25.0.50; Unicode fonts defective on Windows, Eli Zaretskii, 2015/03/11
- bug#19993: 25.0.50; Unicode fonts defective on Windows, Eli Zaretskii, 2015/03/12
- bug#19993: 25.0.50; Unicode fonts defective on Windows, Ilya Zakharevich, 2015/03/12