On May 12, 2004, at 10:04 AM, Prof Brian Ripley wrote:
interactive() is as good a test as we have, and I think if a better test
is required in the interactive case, the user should be asked.
There may be a little problem in the current sources (talking unix for now) - R sets the interactive flag like this:
[EMAIL PROTECTED]: R_Interactive = isatty(0);
Unfortunately right after this there comes:
if (!R_Interactive && SaveAction != SA_SAVE && SaveAction != SA_NOSAVE)
R_Suicide("you must specify `--save', `--no-save' or `--vanilla'");Now speaking of embedded R - the above leaves (afaik) no way of telling R to use interactive mode before this suicide attempt if stdout is no tty (it doesn't have to if the embedding app provides its own Read/WriteConsole etc.). Any thoughts on this? (btw: aqua uses a hack to circumvent this... whenever aqua needs a hack it may be worth thinking about something more general ;))
Cheers, Simon
--- Simon Urbanek Department of computer oriented statistics and data analysis University of Augsburg Universitätsstr. 14 86135 Augsburg Germany
Tel: +49-821-598-2236 Fax: +49-821-598-2200
[EMAIL PROTECTED] http://simon.urbanek.info
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