String operations

[michel...@gmail.com]

There exist vectorized string operations in Numpy, but I am curious to know whether there would be any benefit (in terms or performance and/or memory usage) from introducing string operations in Numexpr.

[Gaëtan de Menten]

For one operation, there probably would be little benefit (except
possibly a small benefit thanks to the multi-threading), but for
several chained operations, there is a potential larger speed up by
avoiding storing and loading intermediate values (similar benefits
from numeric operations, I guess). However, someone would need to
implement those.

-Gaëtan