byHand property
The file and the wire spell this one themselves, so the walks that emit, parse and encode by the table skip it.
A row is here to be a KEY — something a binding files under, the read
plane gets and sets, and the editor offers. Whether the file happens to
spell it positionally (text), as a whole sublanguage (style) or by
its parts (args) is a separate question, and this is the answer to
it. Without the distinction those three could not be rows at all, and
each got an ad-hoc key of its own instead — which is how a key space
grew four kinds of thing in it.
Implementation
final bool byHand;