def frac.digits
import bend-toon-codec@0.1.0.0/src/num.bend as Numimport Base
102def frac.digits(+neg: Bool, +ip: String, +r: Sp) -> Maybe<&2, Num>:
103 match r:
104 case Sp{ds, rest}:
105 match ds:
106 case SNil{}:
107 None{}
108 case _:
109 frac.rest(neg, ip, ds, rest)