def numbers.next
import gralha-text-scan@0.1.0.1/scan.bend as Scanimport Base
218def numbers.next(num: Number, next: String -> List<&2, F32>) -> List<&2, F32>:
219 Number{x, t, valid} = num
220 choose(Unit -> List<&2, F32>, valid, _ => Con{x, next(t)}, _ => Nil{})(Unit{})