- pl-for-each fn pls #!rest plssprocedure
applies fn over the pseudolists (cons pls plss) stops if one of the items is pl-null? Note, that this is R7RS-, not R5RS-logic
applies fn over the pseudolists (cons pls plss) stops if one of the items is pl-null? Note, that this is R7RS-, not R5RS-logic