[R-SIG-Mac] \r in R.app console

[Prof Brian Ripley]

I discovered empirically that cat("\r") in the R.app console emits a 
newline: is that intentional?  It is the only way of running R I have 
found for which that is true.  (The R Windows GUI and all terminals, even 
on Mac OS, just move to the beginning of the line.)

The reason for testing was txtProgressBar() in pre-2.7.0, which expects \r 
to do a carriage return, only (as documented in ?Quotes).  I could change 
this to use backspaces (less reliably), but it would seem better to make 
the console consistent with the documentation and e.g. Terminal.

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595