[R-SIG-Mac] undo in Editor does not truly "undo"

Rob J Goedman goedman at mac.com
Thu Jan 6 16:51:20 CET 2005

Hi Denis,

This is indeed a known (and awkward) issue. It was flagged early 
December and I did
look at what it would take to fix it. Turns out fixing it within the 
document architecture
is simple, but in the current structure of R.app, where R Console is 
not really a
document, it is hard (the main menu becomes very confused). Not sure if 
Stefano or
Simon know a way around this, I would be happy to try out ideas.

About a year ago I implemented command-E (source file) and 
command-return (source
selection) using AppleScript, which allows one to use an external 
editor. To make this
work well, you do need something like iKey to define hot keys across 


On Jan 5, 2005, at 1:12 PM, Denis Chabot wrote:

> Hi,
> This applies to the new R gui for Panther.
> I often lose changes I make to my text files (R programs) in the gui 
> editor. I appreciate the fact that selected lines are "sent to the 
> console" when you press command-return. Much faster than copy and 
> paste from my external text editor, TextWrangler, to the console, 
> which I must continue to do on my PowerBook running 10.2.8.
> But sometimes I slip, and do not press command, or I forget that lines 
> are selected and start typing. In both cases the selected lines 
> vanish. When this happens you should be able to fix the problem by 
> doing Undo. But in the R editor, Undo brings me back to a previous 
> state, I'm not sure which (when I opened the file?), and I have to add 
> by hand the lines that have vanished plus the changes I had made since 
> that "saved" state.
> I am using 1.02-pre build 879
> Is this happening to others as well?
> Thanks,
> Denis
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