if sign > 0 {
			r = appendTable(r, tab)
		} else {
			r = appendNegatedTable(r, tab)
		}
	} else {
		// Merge and clean tab and fold in a temporary buffer.
		// This is necessary for the negative case and just tidy
		// for the positive case.
		tmp := p.tmpClass[:0]
		tmp = appendTable(tmp, tab)
		tmp = appendTable(tmp, fold)
		p.tmpClass = tmp

   * Does not close {@code appendable} if it is {@code Closeable}.
   *
   * @return the number of characters copied
   * @throws IOException if an I/O error occurs while reading from this source or writing to {@code
   *     appendable}
   */
  @CanIgnoreReturnValue
  public long copyTo(Appendable appendable) throws IOException {

   * separator between each, to {@code appendable}.
   *
   * @since 11.0
   */
  @CanIgnoreReturnValue
  public <A extends Appendable> A appendTo(A appendable, Iterator<? extends @Nullable Object> parts)
      throws IOException {
    checkNotNull(appendable);
    if (parts.hasNext()) {
      appendable.append(toString(parts.next()));
      while (parts.hasNext()) {
        appendable.append(separator);

   * separator between each, to {@code appendable}.
   *
   * @since 11.0
   */
  @CanIgnoreReturnValue
  public <A extends Appendable> A appendTo(A appendable, Iterator<? extends @Nullable Object> parts)
      throws IOException {
    checkNotNull(appendable);
    if (parts.hasNext()) {
      appendable.append(toString(parts.next()));
      while (parts.hasNext()) {
        appendable.append(separator);

   * Does not close {@code appendable} if it is {@code Closeable}.
   *
   * @return the number of characters copied
   * @throws IOException if an I/O error occurs while reading from this source or writing to {@code
   *     appendable}
   */
  @CanIgnoreReturnValue
  public long copyTo(Appendable appendable) throws IOException {

        then:
        1 * listener.onOutput('text')
    }

    def forwardsTextToAnAppendable() {
        Appendable appendable = Mock()
        StreamingStyledTextOutput output = new StreamingStyledTextOutput(appendable)

        when:
        output.text('text')

        then:
        1 * appendable.append('text')
    }

    def ignoresStyleInformation() {
        StandardOutputListener listener = Mock()

      }
    },
    NEW {
      @Override
      long copy(Readable from, Appendable to) throws IOException {
        return CharStreams.copy(from, to);
      }
    };

    abstract long copy(Readable from, Appendable to) throws IOException;
  }

  enum TargetSupplier {
    STRING_WRITER {
      @Override
      Appendable get(int sz) {
        return new StringWriter(sz);
      }
    },
    STRING_BUILDER {

public class StreamBackedStandardOutputListener implements StandardOutputListener {
    private final Appendable appendable;
    private final Flushable flushable;

    public StreamBackedStandardOutputListener(Appendable appendable) {
        this.appendable = appendable;
        if (appendable instanceof Flushable) {
            flushable = (Flushable) appendable;
        } else {
            flushable = new Flushable() {
                @Override

        this(listener, listener);
    }

    /**
     * Creates a text output which writes text to the given appendable.
     * @param appendable The appendable.
     */
    public StreamingStyledTextOutput(final Appendable appendable) {
        this(appendable, new StreamBackedStandardOutputListener(appendable));
    }

    private StreamingStyledTextOutput(Object target, StandardOutputListener listener) {

        this.child = child;
    }

    @Override
    public void describeTo(Appendable appendable) {
        parent.describeTo(appendable);
        try {
            appendable.append(" > ");
        } catch (IOException e) {
            throw new UncheckedIOException(e);
        }
        child.describeTo(appendable);
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) {