def rev.next
import gralha-xml-doc@0.1.0.1/xml.bend as Xmlimport Base
41def rev.next(s: String) -> Step:
42 match s:
43 case SNil{}: Step{3, 0, "", ""}
44 case SCon{Chr{c}, t}:
45 +ch = c
46 rev.next.at(U32.is_eq(ch, 59), ch, t)
47
48@unsafe