[R-SIG-Mac] "Extra" new line characters in history w/ R 2.9.1

[Simon Urbanek]

On Jun 30, 2009, at 11:59 , Jeffrey Carroll wrote:

> Hi All,
>
>
> I recently upgraded to R 2.9.1 on my MacBook Pro running Mac OS X  
> 10.5.7.
>
> Previously, at the command prompt in the GUI the up arrow key  
> scrolled through the history.  This still works for me, but every  
> time I scroll up the previous command gets an extra new line  
> character appended to it.  I've attached a screen shot showing what  
> happens when I repeatedly use a single stroke of the up arrow to  
> recall the previous command.  This is trivial, but makes using the  
> history rapidly more challenging because you have to delete though a  
> bunch of whitespace when trying to edit previously used commands.
>
> This changed immediately after I upgraded to 2.9.1.  Does anyone  
> know if something in R/GUI changed, or if I just had a setting that  
> I don't know about altered when I upgraded?
>

It seems that your preferences may have changed because the GUI didn't  
change in 2.9.1 - make sure you have "Cleanup history entries" enabled  
in Preferences->Startup->History.

Cheers,
Simon