[Rd] Modifying parsed code

From: hadley wickham <h.wickham_at_gmail.com>
Date: Fri 07 Jul 2006 - 12:08:42 GMT


I would like to take this:

.img(plot(1:10), filename="a")

and produce

plot(1:10)

ie. whenever .img is used, I want to take the first argument and throw away everything else.

(I am trying to produce a Sweave like environment in which I can apply certain functions, but not have them displayed in the output)

I think I should be able to do it using substitute, but I don't know how to operate on language objects. Any hints would be appreciated.

Thanks,

Hadley



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