[Sab] Design Thoughts

[Hutton,Scott]

I am curious why Sabltron implements its own String, List, Tree, etc.
classes as opposed to using the  C++ standard library or STL. 

Was this done solely for portability reasons, or was there some performance
issues as well?  Other reasons?

If the former, have there been any thoughts about switching over to the C++
standard library?

If the latter, was any benchmarking done, and if so, what platform was it on
and what were the results? 



Thanks in advance for your responses.


Scott