req.Trailer = nil
	}
	return &s3UnsignedChunkedReader{
		trailers: req.Trailer,
		reader:   bufio.NewReader(req.Body),
		buffer:   make([]byte, 64*1024),
	}, ErrNone
}

// Represents the overall state that is required for decoding a
// AWS Signature V4 chunked reader.
type s3UnsignedChunkedReader struct {
	reader   *bufio.Reader
	trailers http.Header

	buffer []byte
	offset int
	err    error
	debug  bool
}

    CharSequenceReader reader = new CharSequenceReader(string);
    assertTrue(reader.markSupported());

    assertThat(readFully(reader)).isEqualTo(string);
    assertFullyRead(reader);

    // reset and read again
    reader.reset();
    assertThat(readFully(reader)).isEqualTo(string);
    assertFullyRead(reader);

    // reset, skip, mark, then read the rest
    reader.reset();
    assertEquals(5, reader.skip(5));

func HardLimitReader(r io.Reader, n int64) io.Reader { return &HardLimitedReader{r, n} }

// A HardLimitedReader reads from R but limits the amount of
// data returned to just N bytes. Each call to Read
// updates N to reflect the new amount remaining.
// Read returns EOF when N <= 0 or when the underlying R returns EOF.
type HardLimitedReader struct {
	R io.Reader // underlying reader
	N int64     // max bytes remaining
}

import org.jline.keymap.KeyMap;
import org.jline.reader.Binding;
import org.jline.reader.EndOfFileException;
import org.jline.reader.LineReader;
import org.jline.reader.LineReaderBuilder;
import org.jline.reader.MaskingCallback;
import org.jline.reader.Reference;
import org.jline.reader.UserInterruptException;
import org.jline.reader.impl.DefaultHighlighter;
import org.jline.reader.impl.DefaultParser;

        normalizeKana = settings.getAsBoolean("normalize_kana", JapaneseIterationMarkCharFilter.NORMALIZE_KANA_DEFAULT);
    }

    @Override
    public Reader create(Reader reader) {
        return new JapaneseIterationMarkCharFilter(reader, normalizeKanji, normalizeKana);
    }

              public void close() throws IOException {
                super.close();
                counter[0]--;
              }
            };
          }
        };
    Reader joinedReader = CharSource.concat(reader, reader, reader).openStream();
    String result = CharStreams.toString(joinedReader);
    assertEquals(testString.length() * 3, result.length());
  }

  public void testReady() throws Exception {

    public static Iterable<String> iterable(final BufferedReader reader) {
        assertArgumentNotNull("reader", reader);

        return () -> new LineIterator(reader);
    }

    /**
     * Constructs an instance.
     *
     * @param reader
     *            The {@link Reader} to read strings from. Must not be {@literal null}.
     */
    public LineIterator(final Reader reader) {
        assertArgumentNotNull("reader", reader);

    while (lines.peek() == null) {
      Java8Compatibility.clear(cbuf);
      // The default implementation of Reader#read(CharBuffer) allocates a
      // temporary char[], so we call Reader#read(char[], int, int) instead.
      int read = (reader != null) ? reader.read(buf, 0, buf.length) : readable.read(cbuf);
      if (read == -1) {
        lineBuf.finish();
        break;
      }

  }

  public void testOpenStream() throws IOException {
    Reader reader = source.openStream();

    StringWriter writer = new StringWriter();
    char[] buf = new char[64];
    int read;
    while ((read = reader.read(buf)) != -1) {
      writer.write(buf, 0, read);
    }
    reader.close();
    writer.close();

    assertExpectedString(writer.toString());
  }

        /**
         * Creates a new instance of <code>PropertiesReader</code> and sets
         * the underlaying reader and the list delimiter.
         *
         * @param reader the reader
         */
        public PropertiesReader(Reader reader, boolean maybeTyped) {
            super(reader);
            commentLines = new ArrayList<>();
            valueLines = new ArrayList<>();