def overlap

bend-kit-router@0.2.0.0 · router.bend:422

import Base

422def overlap(a: List<&2, Segment>, b: List<&2, Segment>) -> Bool:
423  match a b:
424    case Nil{} Nil{}:
425      True{}
426    case Literal{x} <> at Literal{y} <> bt:
427      continue(String.eq(x, y), u => overlap(at, bt))
428    case Literal{x} <> at Parameter{y} <> bt:
429      continue(Bool.not(String.is_empty(x)), u => overlap(at, bt))
430    case Parameter{x} <> at Literal{y} <> bt:
431      continue(Bool.not(String.is_empty(y)), u => overlap(at, bt))
432    case Parameter{x} <> at Parameter{y} <> bt:
433      overlap(at, bt)
434    case _ _:
435      False{}