I really should be able to figure this out but for some reason my brain isn't working. Also, I suck at regex. What I want to do is use the PL/SQL to replace all non-alphanumeric characters in a column ...

I was just wondering what people think is the best C++ regular expressions library. I have seen three so far: the libary bundled with Boost, GRETA, and Zopyra. I'm not really looking for super general ...