Switched back to rules for lexems.
Implemented range. Refactored a little comprehension.
Refactored args.
Removed unused rule.
Renamed allowedLast to lastOnly.
Removed irrelevant comments.
Removed noise case in seqExprs.
Haha! Fixed thing inhibiting function calls in comprehensions.
style
Style. Comment on type-precision or rules. Refactored lastOnly.
style