Re: redisplay system of emacs

[Davis Herring]

[Alin, I'm fully aware that you're not advocating this idea now.  I don't
mean to attack, but to explain something that wasn't said explicitly.]

> Redisplay_internal does lots and lots of computations to detect which part
> of the buffer should be redisplayed at a given moment. All these
> computations can be avoided using a system of subwindows (1 for every
> char).

Those computations are complicated because the buffer contents (or window
width, or scroll amount, or...) might have changed, not just because the
window might have been damaged in some complicated fashion.

Davis

-- 
This product is sold by volume, not by mass.  If it appears too dense or
too sparse, it is because mass-energy conversion has occurred during
shipping.