I just tried it on ubuntu but within RStudio:
> cat("abc\b")
ab
> cat("abc\b\n")
ab
> sessionInfo()
R version 3.0.2 (2013-09-25)
Platform: x86_64-pc-linux-gnu (64-bit)
locale:
[1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C LC_TIME=C
LC_COLLATE=C
[5] LC_MONETARY=C LC_MESSAGES=C LC_PAPER=C
LC_NAME=C
[9] LC_ADDRESS=C LC_TELEPHONE=C LC_MEASUREMENT=C
LC_IDENTIFICATION=C
--------
On the same machine but running R in the terminal (tried with GNOME
terminal, Konsole, and xterm with no difference )
> cat("abc\b")
ab> cat("abc\b\n")
abc
> sessionInfo()
R version 3.0.2 (2013-09-25)
Platform: x86_64-pc-linux-gnu (64-bit)
locale:
[1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C LC_TIME=C
[4] LC_COLLATE=C LC_MONETARY=C LC_MESSAGES=C
[7] LC_PAPER=C LC_NAME=C LC_ADDRESS=C
[10] LC_TELEPHONE=C LC_MEASUREMENT=C LC_IDENTIFICATION=C
---------
But then again ...
cat("abc\b \n")
... seems to work the same way everywhere. It looks like the logic in a
unix terminal is that \b moves the cursor backwards but does not replace or
delete anything that was there before.
Regards,
Kenn
On Tue, Nov 5, 2013 at 12:53 PM, Renaud Gaujoux <
ren...@mancala.cbio.uct.ac.za> wrote:
> Maybe it's a Linux problem:
>
> > cat("abc\b")
> ab> cat("abc\b\n")
> abc
> > sessionInfo()
> R version 3.0.2 (2013-09-25)
> Platform: x86_64-pc-linux-gnu (64-bit)
>
> locale:
> [1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C
> [3] LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8
> [5] LC_MONETARY=en_US.UTF-8 LC_MESSAGES=en_US.UTF-8
> [7] LC_PAPER=en_US.UTF-8 LC_NAME=C
> [9] LC_ADDRESS=C LC_TELEPHONE=C
> [11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C
>
> attached base packages:
> [1] stats graphics grDevices utils datasets methods base
> >
> > Sys.info()
> sysname
> "Linux"
> release
> "3.11.0-12-generic"
> version
> "#19-Ubuntu SMP Wed Oct 9 16:20:46 UTC 2013"
> nodename
> "XXXXX"
> machine
> "x86_64"
> login
> "XXXXX"
> user
> "XXXXX"
> effective_user
> "XXXXX"
> >
>
>
>
>
> On 1 November 2013 19:54, Dennis Murphy <djmu...@gmail.com> wrote:
>
> > I can't reproduce the error, either:
> >
> > > cat("abc\b")
> > ab> cat("abc\b\n")
> > ab
> > >
> > > sessionInfo()
> > R version 3.0.2 (2013-09-25)
> > Platform: x86_64-w64-mingw32/x64 (64-bit)
> >
> > locale:
> > [1] LC_COLLATE=English_United States.1252
> > [2] LC_CTYPE=English_United States.1252
> > [3] LC_MONETARY=English_United States.1252
> > [4] LC_NUMERIC=C
> > [5] LC_TIME=English_United States.1252
> >
> > <package info snipped for brevity>
> >
> > Dennis
> >
>
> [[alternative HTML version deleted]]
>
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> R-devel@r-project.org mailing list
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>
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