Re: Variable pitch text filling

[Eli Zaretskii]

> From: Lars Ingebrigtsen <larsi@gnus.org>
> Cc: emacs-devel@gnu.org
> Date: Wed, 01 Dec 2021 18:52:09 +0100
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> >> 1) is difficult to achieve, because we haven't implemented a recursive
> >> `min-width'.
> >
> > In what situations you'd need such a "recursive" min-width?
> 
> In the "U:--" in the mode line, where the "-" should be wider, and there
> should be an overall min-width for the entire thing.

Why would you need the overall min-width, if each one of the "-" is as
wide as "*" or "%" (whichever is wider)?

IOW, why also have a condition on a whole when you already have
conditions on each one of its parts?