Re: Question about display engine

[Ergus]

Hi Eli & Martin:

I just made some extra changes in the branch to fix the issues for the
extra space in terminal gui.

To test them try to disable the :extend for the region face and select a
region with empty lines see if this is a right behavior (I think
so). Now the extra space is colored like the text no with the extend
face in gui and tui interfaces..

Eli:

The questions I asked before were:

> I implemented this in the face_at_buffer_position but in the same
> function (handle_face_prop_general) there is a function called
> face_at_string_position equivalent to face_at_buffer_position... is it
> possible in some conditions to reach that part of the code at eol? if
> so I will need to modify that one too maybe right?
>
> The filter now in merge_ref only works when !CONSP(ref_name). As it only
> bypass the extra parameter to merge_named... it this right in the
> general case?

Could you suggest (if any) if there are some conditions we can use to
avoid the call to handle_face_prop_general in some cases?