I have a lot of topologies in GML format and want to process them with Lemon (http://lemon.cs.elte.hu/trac/lemon), but it doesn't support GML files. Is there a library?
I just found a solution called GML2LGF converter. It's a standalone app, which you can convert your gml files into Lemon Graph Format.
http://csikor.tmit.bme.hu/GML2LGF/
Cheers.