On Tue, Feb 10, 2009 at 10:11 AM, Duncan Murdoch <murd...@stats.uwo.ca> wrote: > Stavros Macrakis wrote: >> On Tue, Feb 10, 2009 at 8:31 AM, Duncan Murdoch <murd...@stats.uwo.ca>wrote: >>> The evaluator recognizes the context of usage and will get the >>> function for a function call.... >> Can you point me to chapter and verse in the language definition... > No, I'm also unable to find it.
! This seems like a pretty fundamental thing to leave undocumented.... > ...I think originally there was no difference, and it caused the obvious > trouble when people used variable names like t and c other short function > names, so this was added. I don't remember whether the different lookup > rules showed up first in R or S. There is an interesting discussion of these issues (in a Lisp context) in "Technical Issues of Separation in Function Cells and Value Cells" Lisp and Symbolic Computation 1:1:81 (6/1988) -- available at http://www.nhplace.com/kent/Papers/Technical-Issues.html. I don't think an R-style approach is discussed there, though. -s ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
