It seems all of these names use the same style as RPM files, in which case you can simply extract the three fields (package, version, release) with:

/^(.+)-([^-]+)-([^-]+)$/
[download]

or if you know they're in the right format even just /(.*)-(.*)-(.*)/

Comparison however is a different story. Maybe there's a module for it, but with something like "ogle1", I'm not even sure there's a canonical way of comparing those