Analyze effort to implement Greek verse

[blagae]

Try to work with the current setup to create a basic parallel implementation that can scan some sample Greek verses. The outcome should be a set of pointers and suggestions for refactorings that can make implementing a full Greek hexameter scanner easier.

The effort on this ticket is allowed to contain "bad" code because it does not have to be usable as-is, but of course it is better if it's easily mergeable.