[R] R run under Emacs fatal errors halt execution

[Prof Brian Ripley]

1) Why make life difficult for yourself by not using ESS?  You are running 
R in non-interactive mode because that's the way NTEmacs does things with 
a shell buffer.  But people have been here before and we (the R 
developers) provided a solution years ago.

There is a flag --ess that was added for this purpose (to work around the 
issue in ESS), so look up what it does and make use of it.

3) R does not run under 'the DOS shell': I presume you mean cmd.exe, the 
Windows 'command prompt'.  The issue is pretty much independent of the 
shell in use: it is the lack of ptys on Windows that makes NTEmacs 
different from other platforms.

On Thu, 13 Nov 2008, Stavros Macrakis wrote:

> I am running R.exe/Rterm.exe 2.7.1 under Emacs 22.1 under the DOS
> shell under Windows XP.  (My Cygwin installation is broken!)  I am not
> currently using ESS:
>
>   > R.exe --vanilla
>   R version 2.7.1 ...
>   ...
>   > 1+1
>   2
>
> This works fine until I hit an R error -- pretty much any error --
> when the process halts and returns to the shell:
>
> Wrong number of arguments error:
>
>  > quote()
>  Error in quote(): 0 arguments passed....
>  Execution halted
>
> Syntax error:
>
>  > )
>  Error: unexpected ')' in ")"
>  Execution halted
>
> The same thing happens in R.exe and Rterm.exe.
>
> How do I get R to catch the error and let me continue?
>
> Thanks,
>
>            -s
>
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-- 
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