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From: Bart Schaefer <schaefer@brasslantern.com>
Message-id: <140921123854.ZM1299@torch.brasslantern.com>
Date: Sun, 21 Sep 2014 12:38:54 -0700
In-reply-to: <lvn24g$qhj$1@ger.gmane.org>
Comments: In reply to "Yuri D'Elia" <wavexx@thregr.org>
 "Re: rsync --progress stops completion" (Sep 21,  7:33pm)
References: <lv9jav$8l6$1@ger.gmane.org>  <2002755.9ryFYYVtTN@note>
	<5418786F.8030001@thregr.org>	<140916175124.ZM5742@torch.brasslantern.com>
	<54194198.2010607@thregr.org>	<140917085133.ZM6725@torch.brasslantern.com>
	<541AA918.8060503@thregr.org>	<140918093602.ZM7963@torch.brasslantern.com>
	<lvjuvl$mru$1@ger.gmane.org>	<140918190130.ZM8366@torch.brasslantern.com>
	<lvjv8o$r67$1@ger.gmane.org>	<140920112024.ZM29459@torch.brasslantern.com>
	<lvmv6s$o5c$1@ger.gmane.org>	<140921102006.ZM31805@torch.brasslantern.com>
	<lvn24g$qhj$1@ger.gmane.org>
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Subject: Re: rsync --progress stops completion
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On Sep 21,  7:33pm, Yuri D'Elia wrote:
}
} As an additional question, is there a way to change the prompt
} temporarily, or do I have to set a post-command hook and restore it
} manually?

There's no clean way to repaint the prompt from inside a completer --
you'd have to run "zle -I" which will redraw the display starting on
a fresh line.

You might be better off using "compadd -x" to display a message, but
that only shows up if there's a completion listing.  Hmm.

In any case to answer your direct question, no, there's no temporary
RPROMPT.  You'd have to restore it in e.g. a precmd hook, or use a
conditional prompt and tweak things related to the conditions (such
as elements of the psvar array).

} I'd like to set RPROMPT to "<fallback" and set transient_rprompt as an
} indicator that the fallback is active.

Of course if you set transient_rprompt and the line is already too long,
your indicator won't be visible.