Re: Combining face and map stuff

[Eli Zaretskii]

> From: Stefan Monnier <address@hidden>
> Date: Mon, 04 Oct 2010 01:37:26 +0200
> 
> - rather than have just one set of text-properties per char, make it
>   possible to have several.  E.g. font-lock would use its own set of
>   text properties.  One way to do that is that a `property' can now be
>   a cons whose car is a "plane" and whose cdr is a property.

How would the display engine know which "plane" to use for rendering
each character?  Or are you suggesting to hard-code a fixed list of
"planes" in the display code?