auto
lifetime 'lt
lexattribute add_custom("directive",r"^(?m)^#(.|(\\\n|\\\r))*$")
#lexattribute add_custom("junk",r"(?m)(.|(\\\))*$")
lexattribute add_custom("junk",r"^(?m)^.*$")
valueterminal directive ~ &'lt str ~ Custom("directive",d) ~ d
#valueterminal junk ~ &'lt str ~ Custom("junk",d) ~ d
valueterminal junk ~ () ~ Custom("junk",_) ~ ()
nonterminals S Stuff 
startsymbol S

S --> Stuff*
#Stuff --> junk:j { print!("see junk ({}): ",&j); for b in j.bytes() {print!("{}, ",b as u8);} println!(); ... }

Stuff --> directive:d { println!("See directive: {}",d); ... }
Stuff --> junk