[Rd] Getting hold of a package's environment from C code

[Prof Brian Ripley]

On Sun, 22 Oct 2006, Seth Falcon wrote:

> Seth Falcon <sfalcon at fhcrc.org> writes:
>> Perhaps:
>>
>> R_FindNamespace(mkString(where))
>
> Sorry, this won't help you for package-level code as this function is
> part of the internal use only API.  It would be nice to have access to
> it or a similar function from C in package code.

Hmm, it is declared in Rinternals.h, which is the public header for 
manipulating R objects at C level.  As such it is available to packages, 
but as it is not documented in 'Writing R Extensions' it is subject to 
change.

R_FindNamespace is essentially the same code as Duncan M provided, so it 
is a pretty simple function.  (It still contains a test that namespaces 
are supported, and that seems long overdue for removal.)

-- 
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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