[R] Scripting with an external editor
ripley at stats.ox.ac.uk
Sun Mar 30 20:56:20 CEST 2003
On Sun, 30 Mar 2003, Jim Lemon wrote:
> If my trawling through the "connections" code is correct, a pipe
> connection is designed to read to EOF before returning its input to the
> parsing function. Blocking is not an option with this type of connection.
Not so: it is parse(file=) that is designed to read to EOF. pipe() does
nothing, but reading from a pipe reads connections however much is asked
for. If you want non-blocking, use a socket or fifo.
> As I do not know how to spoof an EOF on an open pipe, it looks like I
> would have to rewrite 3 or 4 fairly low level functions to return input on
> My impression is that this is the wrong way to go about this. After all, I
> am sure that something similar is already being done using the present
> connection functions. Any suggestions as to where else I might look would
> be greatly appreciated.
I have already sent you such a reply, on Monday 24th.
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
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