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Re: Re: v6: still no multiple undo?

  • To: mathgroup at
  • Subject: [mg77648] Re: [mg77577] Re: v6: still no multiple undo?
  • From: Andrzej Kozlowski <akoz at>
  • Date: Thu, 14 Jun 2007 05:31:31 -0400 (EDT)
  • References: <> <> <> <> <> <14694989.1181527374589.JavaMail.root@m35> <f4j1ha$n3c$> <f4lbhe$g25$> <>

On 13 Jun 2007, at 20:32, David wrote:

> I'm amazed that anyone would argue against a
> multi-level undo for notebook input text corrections. Especially, that
> it would take processor time away from the CPU or development time  
> away
> from the developers. I don't think anyone is suggesting multi-level  
> undo
> for input and output.

I'm amazed that anyone would join a thread without reading it.  For  
example,  who is it who argued against "multi-level undo for notebook  
text input corrections"? Could you post a quote? I myself wrote  

> Of course a
> simple kind of multiple undo, one that only undoes typing and not
> evaluation, might not present any problems, though it would hardly be
> worth making so much fuss about.

Yes, this kind of undo is obviously such a trivial matter that I  
would certainly not have wasted any time to argue against (or for it).
Then there is you assertion:

> I don't think anyone is suggesting multi-level undo
> for input and output.

Have you tried reading this thread before sending your response? Have  
you looked at the posts by
David Reiss, Luc Barthelet and David Bailey? They all discuss more  
than just text-input only undo. They don't necessarily argue clearly  
in favour of it, but they all consider it a possibility, which means  
that it was an issue considered in this thread.
I will just quote Luc:

> While I strongly support that multiple undo is a feature we need to  
> see
> soon, it will take some real work to get there.

Given that the issue of a more than text-input level undo had already  
been raised it does not seem  to me so amazing that some people,  
(myself and Bobby Treat)  would wish to point out their own attitude  
to it. I clearly indicated that I was not referring to "text input  
only" undo.

I suggest to you (and others who have written in a similar vain) that  
it is a very good practice to read all the posts in a thread you  
decide to join particularly if you are intending to make sweeping  
statements of the type "nobody is suggesting" etc.

Andrzej Kozlowski 

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