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Re: undo and history

X-seq: zsh-workers 2784
From: Zoltan Hidvegi <hzoli@xxxxxxxxxx>
To: zefram@xxxxxxxxxxxxxxxxx (Zefram)
Subject: Re: undo and history
Date: Sun, 12 Jan 1997 00:57:57 +0100 (MET)
Cc: zsh-workers@xxxxxxxxxxxxxxx
In-reply-to: <28477.199701101459@xxxxxxxxxxxxxxxxxxxxxxx> from Zefram at "Jan 10, 97 02:59:50 pm"

Zefram wrote:
> This patch further modifies the ZLE undo system, after patch 2746.
> It adds some collusion between the history event selection code and
> the undo system, so that modifications of arbitrary history lines will
> work correctly.  The code to switch to a different history event is also
> moved into a single function, reducing code duplication.

I think it would not be difficult to implement an emacs-like undo mechanism,
where undo itself can be undone.  I like the emacs behaviour and I often miss
it from zsh.  We can use a different zle command name for that, emacs-undo for
example.

Zoltan

References:
- undo and history
  - From: Zefram

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