result.write(this, i)
      // Consume '"'.
      readByte()
      return result.readUtf8()
    }

    if (size == i + 1L) return null // Dangling escape.
    result.write(this, i)
    // Consume '\'.
    readByte()
    result.write(this, 1L) // The escaped character.
  }
}

/**
 * Consumes and returns a non-empty token, terminating at special characters in

escape-html@~1.0.3:
  version "1.0.3"
  resolved "https://registry.yarnpkg.com/escape-html/-/escape-html-1.0.3.tgz#0258eae4d3d0c0974de1c169188ef0051d1d1988"
  integrity sha512-NiSupZ4OeuGwr68lGIeym/ksIZMJodUGOSCZ/FSnTxcrekbvqrgdUxlJOMpijaKZVjAJrWrGs/6Jy8OMuyj9ow==

escape-string-regexp@4.0.0:
  version "4.0.0"

            't'.code -> append('\t')
            'f'.code -> append('\u000c')
            'u'.code -> append(buffer.readUtf8(4).toInt(16).toChar())
            else -> throw IllegalArgumentException("unexpected escape character in $s")
          }
        }
      }
    }
  }

  }

  @Test
  fun parseHostAsciiNonPrintable() {
    val host = "host\u0001"
    assertInvalid("http://$host/", "Invalid URL host: \"host\u0001\"")
    // TODO make exception message escape non-printable characters
  }

  @Test
  fun parseDoesNotTrimOtherWhitespaceCharacters() {
    // Whitespace characters list from Google's Guava team: http://goo.gl/IcR9RD
    // line tabulation

      encodings[ 0xb] = encoding // Vertical Tab
      encodings[ 0xe] = encoding // Shift Out
      encodings[ 0xf] = encoding // Shift In
      encodings[ 0x10] = encoding // Data Link Escape
      encodings[ 0x11] = encoding // Device Control 1 (oft. XON)
      encodings[ 0x12] = encoding // Device Control 2
      encodings[ 0x13] = encoding // Device Control 3 (oft. XOFF)

    HttpUrl.Builder builder = baseUrl.newBuilder("/oauth/authorize")
        .addQueryParameter("client_id", clientId)
        .addQueryParameter("scope", scopes)
        .addQueryParameter("redirect_uri", redirectUrl.toString())
        .addQueryParameter("state", state.base64());

    if (team != null) {
      builder.addQueryParameter("team", team);
    }

    private val DASHDASH = byteArrayOf('-'.code.toByte(), '-'.code.toByte())

    /**
     * Appends a quoted-string to a StringBuilder.
     *
     * RFC 2388 is rather vague about how one should escape special characters in form-data
     * parameters, and as it turns out Firefox and Chrome actually do rather different things, and
     * both say in their comments that they're not really sure what the right approach is. We go

#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
#   set -- "${ARGS[@]}" "$@"
#
# but POSIX shell has neither arrays nor command substitution, so instead we
# post-process each arg (as a line of input to sed) to backslash-escape any
# character that might be a shell metacharacter, then use eval to reverse
# that process (while maintaining the separation between arguments), and wrap
# the whole thing up as a single "set" statement.
#

 * characters that need to be encoded is different for each component. For example, the path
 * component must escape all of its `?` characters, otherwise it could be interpreted as the
 * start of the URL's query. But within the query and fragment components, the `?` character
 * doesn't delimit anything and doesn't need to be escaped.
 *
 * ```java
 * HttpUrl url = HttpUrl.parse("http://who-let-the-dogs.out").newBuilder()

  public final String access_token;
  public final String scope;
  public final String user_id;
  public final String team_name;
  public final String team_id;

  public OAuthSession(
      boolean ok, String accessToken, String scope, String userId, String teamName, String teamId) {
    this.ok = ok;
    this.access_token = accessToken;
    this.scope = scope;
    this.user_id = userId;
    this.team_name = teamName;