def rep.opt
import bend-kit-regex@0.8.0.0/regex.bend as Regeximport Base
445def rep.opt(k: Nat, +g: Bool, +h: Node) -> Node:
446 match k:
447 case 0n:
448 NEmpty{}
449 case 1n+p:
450 NQuest{g, cat(h, rep.opt(p, g, h))}
import bend-kit-regex@0.8.0.0/regex.bend as Regeximport Base
445def rep.opt(k: Nat, +g: Bool, +h: Node) -> Node:
446 match k:
447 case 0n:
448 NEmpty{}
449 case 1n+p:
450 NQuest{g, cat(h, rep.opt(p, g, h))}