// it is called in CreateDirectoriesRecursively() assuming that it will change
  // a pathname from directory syntax (trailing separator) to filename syntax.
  //
  // On Windows this method also replaces the alternate path separator '/' with
  // the primary path separator '\\', so that for example "bar\\/\\foo" becomes
  // "bar\\foo".

  void Normalize();

  /** Returns a joiner which automatically places {@code separator} between consecutive elements. */
  public static Joiner on(String separator) {
    return new Joiner(separator);
  }

  /** Returns a joiner which automatically places {@code separator} between consecutive elements. */
  public static Joiner on(char separator) {
    return new Joiner(String.valueOf(separator));
  }

  private final String separator;

	h := hash.New()

	h.WriteString(r.RouteName)
	h.Write(Separator)
	h.WriteString(r.ProxyVersion)
	h.Write(Separator)
	h.WriteString(r.ClusterID)
	h.Write(Separator)
	h.WriteString(r.DNSDomain)
	h.Write(Separator)
	h.WriteString(strconv.FormatBool(r.DNSCapture))
	h.Write(Separator)
	h.WriteString(strconv.FormatBool(r.DNSAutoAllocate))
	h.Write(Separator)
	h.WriteString(strconv.FormatBool(r.AllowAny))

		// Treat any targetpath matching `\\host\share` basepath as absolute path.
		base = string(Separator)
	}

	// Can't use IsAbs - `\a` and `a` are both relative in Windows.
	baseSlashed := len(base) > 0 && base[0] == Separator
	targSlashed := len(targ) > 0 && targ[0] == Separator
	if baseSlashed != targSlashed || !sameWord(baseVol, targVol) {

		},
		{
			// if `.` exists, use `.` as separator
			name: "@request.auth.claims.[key1]",
			want: RoutingClaim{Match: true, Separator: Dot, Claims: []string{"[key1]"}},
		},
		{
			name: "@request.auth.claims[key1]",
			want: RoutingClaim{Match: true, Separator: Square, Claims: []string{"key1"}},
		},
		{
			name: "@request.auth.claims[key1][key2]",
			want: RoutingClaim{Match: true, Separator: Square, Claims: []string{"key1", "key2"}},

    private void writeFirstOccurrenceOfName(String name, Encoder encoder) throws IOException {
        int separator = SEPARATOR_MATCHER.lastIndexIn(name);
        if (separator > 0) {
            String parent = name.substring(0, separator);
            String child = name.substring(separator + 1);
            encoder.writeByte((byte) name.charAt(separator));
            writeName(parent, encoder);
            writeName(child, encoder);
        } else {

			// was absolute, not relative. Keep the leading path separator so that it
			// remains absolute when joined to prefix.
		} else {
			// Prefix ends in a regular path element, so strip the path separator that
			// follows it.
			trimmed = trimmed[1:]
		}
	}
	return trimmed
}

// WithFilePathSeparator returns s with a trailing path separator, or the empty
// string if s is empty.

   * Returns a splitter that uses the given single-character separator. For example, {@code
   * Splitter.on(',').split("foo,,bar")} returns an iterable containing {@code ["foo", "", "bar"]}.
   *
   * @param separator the character to recognize as a separator
   * @return a splitter, with default settings, that recognizes that separator
   */
  public static Splitter on(char separator) {
    return on(CharMatcher.is(separator));
  }

  // it is called in CreateDirectoriesRecursively() assuming that it will change
  // a pathname from directory syntax (trailing separator) to filename syntax.
  //
  // On Windows this method also replaces the alternate path separator '/' with
  // the primary path separator '\\', so that for example "bar\\/\\foo" becomes
  // "bar\\foo".

  void Normalize();

	h := hash.New()
	h.WriteString(t.clusterName)
	h.Write(Separator)
	h.WriteString(t.proxyVersion)
	h.Write(Separator)
	h.WriteString(util.LocalityToString(t.locality))
	h.Write(Separator)
	h.WriteString(t.proxyClusterID)
	h.Write(Separator)
	h.WriteString(strconv.FormatBool(t.proxySidecar))
	h.Write(Separator)
	h.WriteString(strconv.FormatBool(t.http2))
	h.Write(Separator)
	h.WriteString(strconv.FormatBool(t.downstreamAuto))