sb.append('[');
        if ( this.unc != null ) {
            sb.append("unc=");
            sb.append(this.unc);
        }
        if ( this.canon != null ) {
            sb.append("canon=");
            sb.append(this.canon);
        }
        if ( this.dfsReferral != null ) {
            sb.append("dfsReferral=");
            sb.append(this.dfsReferral);
        }

    StringBuilder builder = new StringBuilder(host.length() + 8);
    if (host.indexOf(':') >= 0) {
      builder.append('[').append(host).append(']');
    } else {
      builder.append(host);
    }
    if (hasPort()) {
      builder.append(':').append(port);
    }
    return builder.toString();
  }

  /** Return true for valid port numbers. */

// the given context.
func listEnv(c *build.Context) []string {
	if c == nil {
		return os.Environ()
	}

	environ := append(os.Environ(),
		"GOOS="+c.GOOS,
		"GOARCH="+c.GOARCH)
	if c.CgoEnabled {
		environ = append(environ, "CGO_ENABLED=1")
	} else {
		environ = append(environ, "CGO_ENABLED=0")
	}
	return environ
}

type apiPackage struct {
	*types.Package
	Files []*ast.File
}

   * control how the file is opened for writing. When no mode is provided, the file will be
   * truncated before writing. When the {@link FileWriteMode#APPEND APPEND} mode is provided, writes
   * will append to the end of the file without truncating it.
   *
   * @since 14.0
   */
  public static ByteSink asByteSink(File file, FileWriteMode... modes) {
    return new FileByteSink(file, modes);

    }

    @Override
    public Writer append(@CheckForNull CharSequence csq) {
      return this;
    }

    @Override
    public Writer append(@CheckForNull CharSequence csq, int start, int end) {
      checkPositionIndexes(start, end, csq == null ? "null".length() : csq.length());
      return this;
    }

    @Override
    public Writer append(char c) {
      return this;
    }

}

func forEachInpodMarkIPRule(cfg *Config, f func(*netlink.Rule) error) error {
	var rules []*netlink.Rule
	families := []int{unix.AF_INET}
	if cfg.EnableIPv6 {
		families = append(families, unix.AF_INET6)
	}
	for _, family := range families {
		// Equiv:
		// ip rule add fwmark 0x111/0xfff pref 32764 lookup 100
		//
		// Adds in-pod rules for marking packets with the istio-specific TPROXY mark.

        for (final char c : url.toCharArray()) {
            if (CharUtil.isUrlChar(c)) {
                buf.append(c);
            } else {
                try {
                    buf.append(URLEncoder.encode(String.valueOf(c), enc));
                } catch (final UnsupportedEncodingException e) {
                    buf.append(c);
                }
            }
        }
        return buf.toString();
    }

      switch (cbuf[pos]) {
        case '\r':
          line.append(cbuf, start, pos - start);
          sawReturn = true;
          if (pos + 1 < end) {
            if (finishLine(cbuf[pos + 1] == '\n')) {
              pos++;
            }
          }
          start = pos + 1;
          break;

        case '\n':
          line.append(cbuf, start, pos - start);
          finishLine(true);

      switch (cbuf[pos]) {
        case '\r':
          line.append(cbuf, start, pos - start);
          sawReturn = true;
          if (pos + 1 < end) {
            if (finishLine(cbuf[pos + 1] == '\n')) {
              pos++;
            }
          }
          start = pos + 1;
          break;

        case '\n':
          line.append(cbuf, start, pos - start);
          finishLine(true);

		if policy == "" {
			continue
		}
		p, found := cache.iamPolicyDocsMap[policy]
		if !found {
			missingPolicies = append(missingPolicies, policy)
			continue
		}
		policies = append(policies, policy)
		toMerge = append(toMerge, p.Policy)
	}
	store.runlock()

	if len(missingPolicies) > 0 {
		m := make(map[string]PolicyDoc)
		for _, policy := range missingPolicies {