Is there any sort of tutorial on calling ruby functions from C++ code? 
I looked at the documentation for SWIG and that all seems to be for 
wrapping a C++ class in a ruby object, which is all well and good for 
many uses but what if you are trying to say derive from a C++ base class 
and then write the code in Ruby.  I'm not sure if SWIG allows this and 
I'm just misreading the directions or if this is possible through some 
other route.  Anybody have any experience with this problem?

Charles Comstock