This is indeed details in Writing R Extensions. You should have a closer look at sections 5.9.3 and 5.9.4. Look at the pieces of C code, they will help you a lot.
cheers, Mathieu Le mercredi 03 juin 2009 à 00:44 +0200, Kynn Jones a écrit : > I'm in the process of coding a parser (in C) to generate R entities > (vectors, lists, etc.) from a text description (different from R). > The basic parser works, and now I need to tell it how to create R > entities. I need to be able to create character vectors (for unicode > strings), integers, floats, unnamed lists, named lists, boolean > values, and NA. With the exception of the two types of lists and the > character vectors, all the other objects I need to generate are > "scalars", so I suppose they will correspond to 1-element vectors in > R. I also need to be able to add R entities to both kinds of lists. > > I've been staring at various official documents (ch 5 of Writing R > Extensions, R Internals, Rinternals.h) for this kind of work for some > time, but I can't find the constructors for such objects (here I'm > using the term "constructor" loosely). I'm even further from finding > the C equivalent of "my.list[[ length(my.list) + 1 ]] <- new.thing". > > Can someone point me in the right direction? > > Thanks! > > Kynn > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel -- Institute of Mathematics Ecole Polytechnique Fédérale de Lausanne STAT-IMA-FSB-EPFL, Station 8 CH-1015 Lausanne Switzerland http://stat.epfl.ch/ Tel: + 41 (0)21 693 7907 ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
