Re: redisplay system of emacs

[Lennart Borgman <lennart.borgman@gmail.com>]

On Thu, Jan 28, 2010 at 12:27 PM, Eli Zaretskii <eliz@gnu.org> wrote:
>> From: Lennart Borgman <lennart.borgman@gmail.com>
>> Date: Thu, 28 Jan 2010 10:07:57 +0100
>> Cc: "alin.s" <alinsoar@voila.fr>, Emacs-devel@gnu.org
>>
>> On Thu, Jan 28, 2010 at 5:13 AM, Eli Zaretskii <eliz@gnu.org> wrote:
>> >
>> >> Could it be possible to take off all the redisplay and create a standardized
>> >> system of redisplay, that everybody can understand quickly? Everybody can
>> >> write an add-on for Mozilla. I do not know how redisplay of Mozilla works,
>> >> but as time as new add ons appear every day, that means that the system is
>> >> very standardized and easy to learn.
>> >
>> > Last time I looked, Mozilla wasn't anywhere close to supporting the
>> > features Emacs has in its display engine.
>>
>>
>> What features?
>
> The ones described in the nodes "Display Property" and "Special
> Properties" in the ELisp manual, for example.


Thanks Eli, maybe I understand what you mean but I am a bit surprised.

The Mozilla display engine displays images and text with different
properties very well. And it is very flexible in its way to do that
(since CSS requires that).

I guess it does not directly has something that reminds of "special
properties", but would that be hard to add?

Another point is of course searching for the properties. But Emacs has
its own difficulties there (overlays).