Re: region-based face-remapping

[Dmitry Gutov]

On 03/01/2024 14:31, Eli Zaretskii wrote:
> The workhorse we use now for obtaining face information is the
> function face_at_buffer_position, which calls the various face-merging
> routines.  Those merging routines and their subroutines consider
> face-remapping-alist as part of face merging process outlined above.
> I don't see how we can avoid passing the buffer position to them if
> face-remapping depends on buffer position.

Perhaps face_at_buffer_position would first look up the overlay/text 
property 'face-remapping-alist, then merge its value with the variable 
face-remapping-alist (using plain 'append', for example), and pass on 
the resulting value to the face-merging routines?