Make parse_and_connect cleaner, possibly factor PrintCodeFn arguments into a struct shared with it

[jherzstein]

This is in reference to a discussion on #277, new arguments are being added to functions which rely on PrintCodeFn and the way it's currently managed could probably made cleaner as @felinira mentions.

I was wondering if the PrintCodeFn arguments could be factored into a struct that's shared with parse_and_connect (they share almost the same arguments, but not quite). It's getting a bit messy with all these arguments.