precmd not being updated when I want

precmd not being updated when I want

[Jesper Holmberg]

I have this:

precmd() { psvar[1]=$#jobtexts; [[ $#jobtexts -eq 0 ]] && psvar[1]=0; }
PS1="%(1v.%v .)$cpath${end}%# "

which gives me the number of jobs first in my prompt. It works very well.
However, if a job finishes, the number of jobs in the prompt does not
update until I type a new command and hit <enter>. Thus:

0 jesper@strindberg:~% sleep 1 &
[1] 7392
1 jesper@strindberg:~% 
[1]  + done       sleep 1
1 jesper@strindberg:~% 
0 jesper@strindberg:~% 

Notice how sleep reports it is finished, but the prompt still shows "1".
Only when I hit <enter> on the second to last line, the "1" is turned into
a "0". Is there a way to fix this?

TIA,

Jesper

Re: precmd not being updated when I want

[Wayne Davison]

On Mon, Sep 08, 2003 at 10:18:11PM +0200, Jesper Holmberg wrote:
> Notice how sleep reports it is finished, but the prompt still shows "1".

I note that using %j in the PROMPT does exactly the same thing. FYI.

..wayne..

Re: precmd not being updated when I want

[Jesper Holmberg]

* On Mon Sep 08, Wayne Davison wrote:
> On Mon, Sep 08, 2003 at 10:18:11PM +0200, Jesper Holmberg wrote:
> > Notice how sleep reports it is finished, but the prompt still shows "1".
> 
> I note that using %j in the PROMPT does exactly the same thing. FYI.

Thanks for your suggestion, but that doesn't seem to work for me. And I
can't find %j in the manual either. I'm using zsh 4.0.7, BTW.

Jesper

Re: precmd not being updated when I want

[Wayne Davison]

On Mon, Sep 08, 2003 at 10:31:30PM +0200, Jesper Holmberg wrote:
> Thanks for your suggestion, but that doesn't seem to work for me.

That wasn't a suggestion, that was my noting that %j was broken in
exactly the same way.  (I'm using 4.1.1, FYI.)  I assume that the
reason for the failure is that the re-prompting is just a redraw, so
zsh does no re-evaluation of the prompt at that point.  I haven't had
a chance to look at it, though.

..wayne..

Re: precmd not being updated when I want

[Bart Schaefer]

On Sep 8,  1:58pm, Wayne Davison wrote:
}
} I assume that the reason for the failure is that the re-prompting is
} just a redraw, so zsh does no re-evaluation of the prompt at that
} point.

Exactly so.

Re: precmd not being updated when I want

[Jesper Holmberg]

* On Tue Sep 09, Bart Schaefer wrote:
> On Sep 8,  1:58pm, Wayne Davison wrote:
> }
> } I assume that the reason for the failure is that the re-prompting is
> } just a redraw, so zsh does no re-evaluation of the prompt at that
> } point.
> 
> Exactly so.

Right, I kind of suspected that. And is there any way of forcing a
re-evaluation? 

Jesper

Re: precmd not being updated when I want

[Bart Schaefer]

On Sep 9,  9:05am, Jesper Holmberg wrote:
} Subject: Re: precmd not being updated when I want
}
} > On Sep 8,  1:58pm, Wayne Davison wrote:
} > }
} > } just a redraw, so zsh does no re-evaluation of the prompt
} 
} And is there any way of forcing a re-evaluation? 

No, I don't believe that there is.  A re-evaluation happens only after
accept-line or send-break, and there's no way to have either of those
invoked without user interaction of some kind.

-- 
Bart Schaefer                                 Brass Lantern Enterprises
http://www.well.com/user/barts              http://www.brasslantern.com

Zsh: http://www.zsh.org | PHPerl Project: http://phperl.sourceforge.net