bit the bullet and dove into restrictions using Java Stacks
still working
working for a bunch of stuff
working
lookahead sketched
add one-char lexer lookahead for parsing of numbers
fix OR OR bug
fiddling
fix bugs in path::<T>
oops typo
oops finish adding path_with_colon (merge)
remove -tree flag from parser
swapped extern mod foo; and extern mod foo {...}
add n-at-a-time calls to the parser
fix bug requiring comma after unsafe block in match
change to 16-at-a-time