Re: History completion

[Juri Linkov]

> I think that such a completion should always be triggered by the user,
> and not automatically.
>
> To cycle the history ring with a given prefix string, I suggest C-n/p.
> The minibuffer is always a single line after all, or am I missing
> something?

This assumption is not always correct.  Sometimes the minibuffer
takes a few lines.

> M-n/p can't be taken, and the same applies to C-M-n/p.

Correct.

> Another suggestion would be to follow comint mode's bindings: C-c M-r/s.
> But, unlike comint's case, C-c M-p/n aren't being used so it's also an
> option.

Two key presses is not the most convenient to browse completions.
Horizontal Icomplete uses ‘C-,’ and ‘C-.’.