Re: Question about display engine

[martin rudalics]

> Extending the underline|overline to the right of the line in the region
> is a fancy detail, but I don't find it useful at all (underlining empty
> long spaces is conceptually an error), and in the actual gui it is not
> happening (not even extend_face_to_end_of_line in gui is executed as the
> background color is extended automatically somewhere else) and there
> haven't been complains either, so there is not people using that, so why
> do we provide a complex solution implementation for a problem nobody
> really cares and that potentially will produce overheads, code
> complexity and more issues?
>
> I am wondering about over-specifications and over-engineering for such a
> detail, when most of the users only need to extend the background color.

Agreed.  But what would we do when in the foreseeable future somebody
asks us to provide such a feature?  No one here has Eli's experience
when it comes to guessing at what Emacs users might eventually want.

martin