Hi all!

I am a computer science lecturer at IST (www.tecnico.ulisboa.pt) andhave been developing a voluntary computing environment for R together with some students. The idea is to allow R users to share their CPU time in the community. Both for security of the volunteers (to create a sandbox) and for debugging support, we have extended the R interpreter with a small intervention in the eval function.

My question is the following:

- Is there any way to transparently intercept all expressions in the R runtime? and in a way we should not have touched the internals of the interpreter..

- If changing the interpreter is the way to go, what is the correct way to propose this change to the R community?

    Thank you for all help,

    Best regards,

        João Garcia

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