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,                  [EMAIL PROTECTED]
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