[R] Use Rterm in rxvt for Cygwin?

[ripley@stats.ox.ac.uk]

On Thu, 6 Mar 2003, Dirk Eddelbuettel wrote:

> On Thu, Mar 06, 2003 at 11:53:54AM -0800, Michael Na Li wrote:
> > On Mon, 3 Mar 2003, ripley at stats.ox.ac.uk outgrape:
> > 
> > >  Rterm is a Windows application.  It works fine in Windows tcsh and in 
> > >  Cygwin bash on Windows XP (and last time I looked, Windows 98 too).
> > 
> > Rterm doesn't work (interactively) in Cygwin bash on our machine (Windows 2000
> > SP 3, R 1.6.1).  (Not that I need that functionality). It gives error like,
> > 
> > ,----
> > | The instruction at "0x7800270e" referenced memory at "0x0000000". The memory
> > | could not be read.
> > `----

I think you will find that is in msvcrt.dll, in which case it is not Rterm 
but a low-level OS interface.

> But under NT4SP6 it also prints
> 
> 	~> Rterm
> 	Fatal error: you must specify --save', --no-save' or --vanilla'
> 
> and following that hint works, i.e. 'Rterm --no-save'.

Looks like your versions of bash are not providing proper ttys to
msvcrt.dll since isatty(0) must be false to get that message.

Given that Rterm works (interactively with full command-line editing)

  in a Windows terminal on those OSes
  in bash on XP
  in tcsh on NT4, 2000 and XP

it points to Cygwin bash as the culprit.

> > Use Rterm for batch processing does work, however.
> 
> And most importantly 'Rterm --slave' works for ESS :)

It is intended that Rterm --ess be used with ESS.

-- 
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)
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