On Wed, 16 Oct 2002 j.c.rougier@durham.ac.uk wrote:
> Hi everyone,
>
> Two minor points about ?.Renviron.
>
> 1) If R_ENVIRON is not set then R defaults to `${R_HOME}/etc/Renviron',
> not `${R_HOME}/etc/Renviron.site' as stated.
No, it does as it states. See the code fragment
/* try site Renviron: R_ENVIRON, then R_HOME/etc/Renviron.site. */
void process_site_Renviron ()
{
char buf[PATH_MAX];
if(process_Renviron(getenv("R_ENVIRON"))) return;
if(strlen(R_Home) + strlen("/etc/Renviron.site") > PATH_MAX -
1) {
R_ShowMessage("path to Renviron.site is too long: skipping");
return;
}
sprintf(buf, "%s/etc/Renviron.site", R_Home);
process_Renviron(buf);
}
in unix/sys-common.c.
The description is inaccurate though: R_HOME/etc/Renviron.site is read
unless R_ENVIRON is set to a valid file. I've altered the code so that
even if R_ENVIRON is invalid R_HOME/etc/Renviron.site is skipped.
${R_HOME}/etc/Renviron is for R's own use. It gets read whether or not
R_ENVIRON is set.
>
> 2) In the details, there is a missing "way" in "`value'
is processed
> in a similar to a Unix shell."
Thanks.
>
> Cheers, Jonathan.
>
> --please do not edit the information below--
>
> Version:
> platform = i686-pc-linux-gnu
> arch = i686
> os = linux-gnu
> system = i686, linux-gnu
> status > major = 1
> minor = 6.0
> year = 2002
> month = 10
> day = 01
> language = R
>
> Search Path:
> .GlobalEnv, Autoloads, package:base
>
>
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--
Brian D. Ripley, ripley@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 272860 (secr)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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