_____________________________________________________________________________
Immediately
+ - Sensible tree-printout
+ - make Tib.Block extend Tree<>
+ - refine TIB
+ - documentation markup
+
+ - more natural phrasing of metagrammar?
+
- finalize metagrammar and rdp-op's
- Lay down the law on the different kinds of Sequence productions
=> mydrop
=> mylift
- - whitespace-in-braces?
- Deal with the problem of zero-rep productions and whitespace insertion
- switch maximal to not-followed-by (~/~)