From: Jason Rumney <jasonr@f2s.com>
To: Eli Zaretskii <eliz@gnu.org>
Cc: emacs-devel@gnu.org
Subject: Re: Displaying LRM and RLM
Date: Sat, 20 Dec 2008 22:57:12 +0800 [thread overview]
Message-ID: <494D07C8.7040507@f2s.com> (raw)
In-Reply-To: <u8wqaexbq.fsf@gnu.org>
Eli Zaretskii wrote:
> Does Emacs support display of zero-width characters? should it?
>
I think the answer to this last questions is yes. Another question is
HOW should Emacs support zero width characters - should it be stripping
them before they are sent to the font backend for display, and doing the
right thing with them itself, or should it be up to the font backends to
support them?
If it is the latter, I think we need to redesign the font backend API to
allow extra information to be attached in the encode_char function in
the backends. Checking just now, we do actually have the information
that this character is zero-width at that point, but once we have
returned the encoded glyph, that information is lost.
next prev parent reply other threads:[~2008-12-20 14:57 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-20 10:31 Displaying LRM and RLM Eli Zaretskii
2008-12-20 10:45 ` Don Armstrong
2008-12-20 11:32 ` Eli Zaretskii
2008-12-20 13:05 ` Jason Rumney
2008-12-20 13:16 ` Eli Zaretskii
2008-12-20 13:36 ` Jason Rumney
2008-12-20 14:27 ` Eli Zaretskii
2008-12-20 14:57 ` Jason Rumney [this message]
2008-12-21 2:24 ` Stefan Monnier
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