[Cython] Done with prototype for "parse tree transforms"

[Dag Sverre Seljebotn]

During my work to investigate how NumPy, C++ template etc. support could 
best be added I discovered a way of integrating such code that has very 
low impact on changing existing code and flow, yet does (I believe) have 
the capacity to give quite powerful results.

I've made a prototype:
- A framework in a 300 line diff
- An example using the framework:  A reimplementation of the good old 
for i in range(x, y) => for i from i <= ... transform, in 40 lines

The whole thing and a long description is here:

http://wiki.cython.org/enhancements/parsetreetransforms


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Dag Sverre