->private : fields of Symbol
explicit throw bug fix
symbol parsing logic changed to behave correctly
less checking; :a/b instead of a/:b ...
idea to tokenize, but reader won't be using this; just save
delete; idea to tokenize, but reader won't be using this; just save
idea of parsing: reader reads recursively: state; produces maai objects right away
PosReader: correct starts
PosReader: last, cur, pos, ...
reader: basic idea
PosReader commented readChar
whitespace, basic structure
reader: minor corrections