01: comments
02: DEFINE/USE
03: "<>" -> "#"
04: CASE statements
05: standard identifiers
06: array declarations
07: idents with underscores
08: VALUE clauses
09: formal parameters
10: constants of type "bits"
11: DEVICE MODULEs
12: WHEN statements
13: parameterless functions
14: recursion depth
15: INTERFACE MODULEs
