if err != nil {
		return err
	}
	enc, err := zstd.NewWriter(dst,
		zstd.WithEncoderLevel(zstd.SpeedFastest),
		zstd.WithWindowSize(1<<20),
		zstd.WithEncoderConcurrency(2))
	if err != nil {
		return err
	}
	mEnc := msgp.NewWriter(enc)
	err = d.EncodeMsg(mEnc)
	if err != nil {
		return err
	}
	err = mEnc.Flush()
	if err != nil {
		return err
	}

    BaseEncoding enc = base32().withPadChar('~');
    testEncodingWithCasing(enc, "", "");
    testEncodingWithCasing(enc, "f", "MY~~~~~~");
    testEncodingWithCasing(enc, "fo", "MZXQ~~~~");
    testEncodingWithCasing(enc, "foo", "MZXW6~~~");
    testEncodingWithCasing(enc, "foob", "MZXW6YQ~");
    testEncodingWithCasing(enc, "fooba", "MZXW6YTB");
    testEncodingWithCasing(enc, "foobar", "MZXW6YTBOI~~~~~~");
  }

    BaseEncoding enc = base32().withPadChar('~');
    testEncodingWithCasing(enc, "", "");
    testEncodingWithCasing(enc, "f", "MY~~~~~~");
    testEncodingWithCasing(enc, "fo", "MZXQ~~~~");
    testEncodingWithCasing(enc, "foo", "MZXW6~~~");
    testEncodingWithCasing(enc, "foob", "MZXW6YQ~");
    testEncodingWithCasing(enc, "fooba", "MZXW6YTB");
    testEncodingWithCasing(enc, "foobar", "MZXW6YTBOI~~~~~~");
  }

                    if (pageEnc != null) {
                        enc = pageEnc;
                    } else if (urlQueue.getEncoding() != null) {
                        enc = urlQueue.getEncoding();
                    }
                }
            }
        } else {
            enc = fessConfig.getCrawlerDocumentFileNameEncoding();
        }

        final int size = 8 + 8 + 32;
        final byte[] enc = new byte[size];
        SMBUtil.writeInt4(size, enc, 0);
        SMBUtil.writeInt4(0, enc, 4);
        System.arraycopy(customData, 0, enc, 8, 8);
        System.arraycopy(machineId, 0, enc, 16, 32);
        return enc;
    }

     * @param enc
     *            The encoding scheme. Must not be {@literal null} or empty.
     * @return The string encoded in <code>application/x-www-form-urlencoded</code> format.
     */
    public static String encode(final String s, final String enc) {
        assertArgumentNotEmpty("s", s);
        assertArgumentNotEmpty("enc", enc);

        try {

    void encodeZeroLengthDoesNotModifyDestination() {
        byte[] src = makeSeq(10);
        Encodable enc = new ByteEncodable(src, 5, 0); // zero length
        byte[] dst = new byte[8];
        Arrays.fill(dst, (byte) 0x7A);

        int written = enc.encode(dst, 3);

        assertEquals(0, enc.size(), "size() must be zero");
        assertEquals(0, written, "encode() must return zero for zero length");

     *
     * @param enc the encoding string to normalize
     * @return the normalized encoding or the default encoding if the input is blank
     */
    public String normalize(final String enc) {
        if (StringUtil.isBlank(enc)) {
            return defaultEncoding;
        }

        final String newEnc = encodingMap.get(toLowerCase(enc));
        if (StringUtil.isBlank(newEnc)) {

        }
        buf.append("; charset=");
        final String enc;
        if (encoding == null) {
            enc = LaRequestUtil.getOptionalRequest().map(HttpServletRequest::getCharacterEncoding).orElse(Constants.UTF_8);
        } else {
            enc = encoding;
        }
        buf.append(enc);
        final HttpServletResponse response = LaResponseUtil.getResponse();

        }
    }

    private String getResourceName(final ResponseData responseData) {
        String name = responseData.getUrl();
        final String enc = responseData.getCharSet();

        if (name == null || enc == null) {
            return null;
        }

        name = name.replaceAll("/+$", "");
        final int idx = name.lastIndexOf('/');
        if (idx >= 0) {