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Re: 4.3.17 unset RPS1 vs RPROMPT
- X-seq: zsh-workers 30546
- From: Mikael Magnusson <mikachu@xxxxxxxxx>
- To: zsh-workers@xxxxxxx
- Subject: Re: 4.3.17 unset RPS1 vs RPROMPT
- Date: Fri, 29 Jun 2012 12:02:13 +0200
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On 29/06/2012, Phil Pennock <zsh-workers+phil.pennock@xxxxxxxxxxxx> wrote:
> zsh 4.3.17, multiple OSes.
> Using "prompt walters", I get a green right-prompt.
> Using "prompt pdp" to invoke my own setup, I still have it.
> I debug. I have "unset RPS1" in my setup function.
> Strange, try at command-line.
> unset RPS1 # no effect
> unset RPROMPT # works
> I see Src/params.c:
> IPDEF7("RPS1", &rprompt),
> IPDEF7("RPROMPT", &rprompt),
> and I know that the docs claim them equivalent.
> So try with "zsh -f", and it works. Some debugging later, and I find
> that if I "unset RPS1" then "typeset -p RPS1 RPROMPT" shows just
> RPROMPT, not both. If I then call "prompt walters", then RPROMPT will
> be set and can only be cleared with "unset RPROMPT".
> If I also "unset RPROMPT", then it comes back into being as a magic
> variable during prompt setup. If I assign to RPS1, then it too comes
> back as a magic variable bound to the same internal rprompt.
> Is it expected that RPROMPT and RPS1 can be decoupled in this way?
> Is there a correct way to clear the prompt, other than *always* having
> to do "unset RPROMPT RPS1" because one or the other may have become
> I don't see it documented and it seems very strange to me. I'd expect
> that if one is unset, the rprompt content gets unset, but assigning to
> either would instantiate the other again, since it can't be reused by a
> user anyway -- if they unset and then assign to a new value, it still
> changes the same C level "rprompt" variable.
Does it help if you remove the 'export's in prompt_walters_setup?
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