assertThat(parse("http://[::1]/").host).isEqualTo("::1")

    // ... but they're included in toString().
    assertThat(parse("http://[::1]/").toString()).isEqualTo("http://[::1]/")

    // IPv6 colons don't interfere with port numbers or passwords.
    assertThat(parse("http://[::1]:8080/").port).isEqualTo(8080)
    assertThat(parse("http://user:password@[::1]/").password).isEqualTo("password")

            while (++i < limit) {
              if (input[i] == ']') break
            }
          }
          ':' -> return i
        }
        i++
      }
      return limit // No colon.
    }

    private fun parsePort(
      input: String,
      pos: Int,
      limit: Int,
    ): Int {
      return try {
        // Canonicalize the port string to skip '\n' etc.