val result = Buffer()

    while (pos < limit) {
      var dot = string.indexOf('.', startIndex = pos)
      if (dot == -1) dot = limit

      if (!encodeLabel(string, pos, dot, result)) {
        // If we couldn't encode the label, give up.
        return null
      }

      if (dot < limit) {
        result.writeByte('.'.code)
        pos = dot + 1
      } else {
        break
      }
    }

              val metadata = snapshot.getSource(ENTRY_METADATA).buffer()
              nextUrl = metadata.readUtf8LineStrict()
              return true
            }
          } catch (_: IOException) {
            // We couldn't read the metadata for this snapshot; possibly because the host filesystem
            // has disappeared! Skip it.
          }
        }

        return false
      }

      override fun next(): String {