From: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: Emacs-Devel <emacs-devel@gnu.org>
Subject: Re: completion-auto-help
Date: Fri, 11 Nov 2005 14:10:30 -0500 [thread overview]
Message-ID: <87y83vngw6.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <DNEMKBNJBGPAOPIJOOICMEKHCOAA.drew.adams@oracle.com> (Drew Adams's message of "Fri, 11 Nov 2005 09:47:45 -0800")
> complete.el extends the meaning of the variable so that a non-nil non-t
> value means "show the help but only on the second attempt to complete".
> I.e. if TAB finds nothing to complete, the first TAB will just
> say "[Next
> char not unique]" without bringing up the *Completions* buffer, and the
> second TAB will then bring up the *Completions* buffer.
> It happens to be my favorite behavior.
> Thanks. I knew about that behavior, but I couldn't make out the related use
> of completion-auto-help.
> I still don't see it in complete.el (it is only tested there, never bound),
> and I don't see it in C code either. Where is `completion-auto-help's
> non-nil, non-t value bound?
completion-auto-help is a user variable. It's only meant to be changed in
the .emacs file.
> If it is only a user who sets such a value, then shouldn't the non-nil,
> non-t behavior be documented for the user option? I don't see that, as I
> mentioned.
It's not documented, because there's no place to document it:
completion-auto-help is part of the basic completion facilities, whereas the
added behavior is only provided in complete.el which is a separate package.
> I proposed `eager' _without_ the automatic update after each keystroke, in
> order to allow that as an additional (separate) option. I think that would
> be better. Some people (or some functions) might like to display the list of
> candidates right from the beginning, as a kind of menu, but prefer to update
> it only upon demand (via `TAB'), not automatically at each keystroke. Some
> people might find the automatic list updating to be distracting (I find it
> very helpful, personally).
I'd wait to see people complaint about one of the two behaviors before
providing both.
> gets called inside `completing-read', upon insertion, but I see no way to
> get `completing-read' to display *Completions* without any user action.
IIRC you can do it from minibuffer-setup-hook.
Stefan
next prev parent reply other threads:[~2005-11-11 19:10 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-11-11 1:30 completion-auto-help Drew Adams
2005-11-11 4:55 ` completion-auto-help Stefan Monnier
2005-11-11 17:47 ` completion-auto-help Drew Adams
2005-11-11 18:39 ` completion-auto-help Drew Adams
2005-11-11 19:10 ` Stefan Monnier [this message]
2005-11-11 19:32 ` completion-auto-help Drew Adams
2005-11-11 21:53 ` completion-auto-help Drew Adams
2005-11-11 22:43 ` completion-auto-help Drew Adams
2005-11-13 20:42 ` completion-auto-help Stefan Monnier
2005-11-13 21:06 ` completion-auto-help Drew Adams
2005-11-13 23:09 ` completion-auto-help Stefan Monnier
2005-11-13 23:40 ` completion-auto-help Drew Adams
2005-11-19 12:10 ` completion-auto-help Eli Zaretskii
2005-11-20 23:23 ` completion-auto-help Richard M. Stallman
2005-11-26 11:20 ` completion-auto-help Eli Zaretskii
2005-11-12 3:38 ` completion-auto-help Richard M. Stallman
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