def Nar.read.go
import bend-kit-int@0.2.0.0/int.bend as Intimport Base
549def Nar.read.go(s: String, +r: U32, +m: U32, st: Maybe<&2, U32>) ->
550 Maybe<&2, U32>:
551 match s:
552 case SNil{}:
553 st
554 case SCon{Chr{x}, t}:
555 Nar.read.go(t, r, m, Nar.read.step(r, m, st, x))