R devel - Oct 2003 - Console in RGui does not do CR on \r (PR#4705)

Full_Name: David Lennartsson
Version: 1.7.1, 1.8.0
OS: Windows XP
Submission from: (NULL) (62.119.45.80)



A very minor bug, but here it comes. On doing something as simple as
cat("1st
test string\r2nd\n") the console in RGui on Windows do not perform a CR on
'\r'.
This is very annoying if you for example want to have a simple progress meter
when running a batch job. It works fine in Rterm. 

The same goes for using Rprintf() in a compiled function. Rterm honours
'\r' but
not Rgui.

Not a bug, but intentional.  To be a bug, it would need to 
be documented to work, and it is not.

In Rgui other threads (e.g. a tcltk button) can be writing to the console 
too.  Implementing \r would be very complicated, and not worthwhile 
(Windows has a perfectly good progress-meter widget!)

On Tue, 21 Oct 2003 david.lenn@rtsson.com wrote:
> Full_Name: David Lennartsson
> Version: 1.7.1, 1.8.0
> OS: Windows XP
> Submission from: (NULL) (62.119.45.80)
> 
> 
> 
> A very minor bug, but here it comes. On doing something as simple as
cat("1st
> test string\r2nd\n") the console in RGui on Windows do not perform a
CR on '\r'.
> This is very annoying if you for example want to have a simple progress
meter
> when running a batch job. It works fine in Rterm. 
I tis nothing to do with Rterm, but terminal in which Rterm is running.

> The same goes for using Rprintf() in a compiled function. Rterm honours
'\r' but
> not Rgui.
-- 
Brian D. Ripley,                  ripley@stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
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