def dir.go
import bend-kit-url@0.4.1.0/url.bend as Urlimport Base
488def dir.go(s: String, +acc: String, last: String) -> String:
489 match s:
490 case SNil{}:
491 String.reverse(last)
492 case SCon{Chr{+c}, t}:
493 +acc2 = {SCon{Chr{c}, acc} : String}
494 dir.go(t, acc2, Bool.pick(String, U32.is_eq(c, 47), acc2, last))