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Re: PATCH: re-expand the prompt automatically
- X-seq: zsh-workers 20132
- From: Bart Schaefer <schaefer@xxxxxxxxxxxxxxxx>
- To: Zsh hackers list <zsh-workers@xxxxxxxxxx>
- Subject: Re: PATCH: re-expand the prompt automatically
- Date: Sun, 4 Jul 2004 14:38:13 -0700 (PDT)
- In-reply-to: <20040704171756.0537685BC@xxxxxxxxxxxxxxxxxxxxxxxx>
- Mailing-list: contact zsh-workers-help@xxxxxxxxxx; run by ezmlm
- References: <20040704171756.0537685BC@xxxxxxxxxxxxxxxxxxxxxxxx>
- Reply-to: Zsh hackers list <zsh-workers@xxxxxxxxxx>
On Sun, 4 Jul 2004, Peter Stephenson wrote:
> Bart Schaefer wrote:
> > (It would seem that, with this patch, "zle -I" can be used instead of
> > reset-prompt.
> That's not quite true. zle -I invalidates the display, redrawing the
> prompt below. [...] zle reset-prompt reexpands the prompt on the
> current line.
Aha. I hadn't caught that distinction.
> > Further, it seems odd to make reset-prompt a built-in
> > widget rather than a zle option.)
> I don't understand that. How would the option know when to reexpand the
In part this suggestion came from my misinterpretation of reset-prompt (by
the way, the ChangeLog calls it "prompt-reset".) However:
> Are you suggesting it be tied to zle -R or zle redisplay or both?
Neither ... Put to it, I don't think "redisplay" should have been a
built-in widget either, except that for historic reasons it had to be.
I'm suggesting that built-in widgets should always act on the editor
buffer (on either the contents or the position of the mark or the cursor)
whereas zle options -- or special commands like compadd -- should act on
the editing engine itself (widgets, keymaps, prompts and displays).
My criteria would best be described by the question, "Would it ever make
sense to use any of the zle -A, -C, -D, or -N options to supercede or
remove this action?" If the answer is yes, it should be a widget; if no,
then either a zle option or a separate command.
I recognize that the line is pretty fuzzy, and now I see that reset-prompt
is a lot deeper in the fuzz than I originally thought.
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