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From: Bart Schaefer <schaefer@brasslantern.com>
Message-Id: <011017175757.ZM5134@candle.brasslantern.com>
Date: Wed, 17 Oct 2001 17:57:57 -0700
In-Reply-To: <20011018011512.C17952@greux.loria.fr>
Comments: In reply to Vincent Lefevre <vincent@vinc17.org>
        "Re: Problem with zip completion" (Oct 18,  1:15am)
References: <20011017164751.A6245@greux.loria.fr> 
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To: Vincent Lefevre <vincent@vinc17.org>, zsh-users@sunsite.dk
Subject: Re: Problem with zip completion
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On Oct 18,  1:15am, Vincent Lefevre wrote:
> Subject: Re: Problem with zip completion
> On Wed, Oct 17, 2001 at 17:44:46 +0000, Bart Schaefer wrote:
> > Actually, having given it a moment's more thought, it would probably be
> > better to use
> > 
> > 	TRAPCLD() { [[ -t 0 ]] && precmd }
> > 
> > or even
> > 
> > 	TRAPCLD() { [[ -o interactive && -t 0 ]] && precmd }
> 
> Why? If TRAPCLD is called when stdout is redirected (thus, not necessarily
> attached to a tty), I still want to be able to write to the tty (here, to
> change the terminal title).

It depends on where and how you're defining the TRAPCLD function, I guess.
My assumption would be that if stdout is redirected, then the child that's
exiting must not be a child of the top-level interactive shell, and thus
changing the terminal title would at best be a waste of effort.

Remember, it's the stdout of the *parent* of the exiting job that we're
testing here.