Regular Expression AND mach

[Jeff Epler]

You didn't tell us you were looking for full-text indexing.

This may be what you want, as your database grows:
http://www.divmod.org/Home/Projects/Lupy/

I haven't used it.  The only two full-text indexing packages I've used
are Glimpse and Swish-E.  I still use Swish-E daily to search in a
2.5 million line software product.  On a reasonably fast machine, it can
find 37 instances of the phrase "int main" in 1.2 seconds.

It's no google, but it works great.  Calling out to it from Python
should pose no great difficulty.

Jeff