I don't think it could be done elegantly with a Splitter. I considered using a regex but thought it would be less clear (and probably slower, although not significantly).

The `length() >= 2` check was suggested by @andrewgaul. A single `"` is not a valid input as I alluded to in https://github.com/jclouds/jclouds/pull/120#discussion_r5902842.