ASM reader to PEG correspondence

gistfile1.txt

sequence:        (A B C ...)   => A B C ...
ordered choice:  (/ A B C ...) => A / B / C / ...
optional branch: (? ...)     => (...)?
zero or more:    (* ...)     => (...)*
one or more:     (+ ...)     => (...)+
not:             (! ...)     => !(...)
and (lookahead): (& ...)     => &(...)

drop node:       (: ...)     -  Drops a node from the parse tree.
concat captures: (~ ...)     -  Concatenates captures.