[CODE4LIB] ruby gem for testing IP addresses for inclusion in sets of non-contiguous address ranges

[Jonathan Rochkind]

Something we university library folks often need to do, even though it's 
kind of a ridiculous design.

I wrote a ruby convenience gem for it that some may find useful, 
basically just a convenience method around the ruby IPAddr stdlib, which 
does the heavy lifting.

https://github.com/jrochkind/ipaddr_range_set