Re: zsh-like zcomplete-mode based on icomplete-mode

[Juri Linkov]

> Ok, now it works better... But this is not zsh completion anymore ;) The
> dynamic table auto-refresh is nice for people who like icomplete/ido but
> it is a different use case and after a while it starts becoming annoying
> for quick uses... but this is a personal preference probably.

zsh does the same when configured with

  zstyle ':completion:*' menu select interactive

So we should have a variable to enable/disable interactive auto-refresh.

> On the other hand I cannot use the up and down arrows anymore for search
> in the history with commands like previous-complete-history-element

Another variable could provide at least 3 choices:

1. never enable arrows, then use only special keys like
   in icomplete-mode C-./C-, but this is not quite convenient;

2. always enable arrows like in icomplete-vertical-mode,
   but this disables history navigation;

3. enable arrows only when the Completions window is displayed,
   this assumes that auto-refresh is disabled, otherwise
   the Completions window is displayed almost always.

> There is a detail when completion-format is one-column and it is when
> using zcomplete-previous-line-completion, some candidates are not
> highlighted... when we go to the last candidate and return... It seems
> like the cursor goes at the end of the candidate where the face-cursor
> is not set.

This looks like bug#54374.