Re: [PATCH] Support "\n" in icomplete-separator

[Stefan Monnier]

> Alas, it is practically impossible to create a text that you can be sure
> will fit / be displayed entirely in the minibuffer window.

I think the core of the argument is that the prompt should fit on
a single line.  The problematic cases with icomplete-vertical only occur
when the prompt itself spans multiple lines, but a prompt that spans
multiple lines is already a problem, regardless of icomplete-mode,
because there are setups where the minibuffer is only made of one line
and is not allowed to grow.

That's the reason why "poor redisplay when prompt > 1 line" is
a low-priority problem: the better solution is to shorten the prompt.


        Stefan