assertEquals(-1, matcher.indexIn(s));
    assertEquals(-1, matcher.indexIn(s, 0));
    assertEquals(-1, matcher.indexIn(s, 1));
    assertEquals(-1, matcher.indexIn(s, s.length()));
    try {
      matcher.indexIn(s, s.length() + 1);
      fail();
    } catch (IndexOutOfBoundsException expected) {
    }
    try {
      matcher.indexIn(s, -1);
      fail();

    assertEquals(-1, matcher.indexIn(s));
    assertEquals(-1, matcher.indexIn(s, 0));
    assertEquals(-1, matcher.indexIn(s, 1));
    assertEquals(-1, matcher.indexIn(s, s.length()));
    try {
      matcher.indexIn(s, s.length() + 1);
      fail();
    } catch (IndexOutOfBoundsException expected) {
    }
    try {
      matcher.indexIn(s, -1);
      fail();

   * #matches} for each character.
   *
   * @param sequence the character sequence to examine from the beginning
   * @return an index, or {@code -1} if no character matches
   */
  public int indexIn(CharSequence sequence) {
    return indexIn(sequence, 0);
  }

  /**
   * Returns the index of the first matching BMP character in a character sequence, starting from a

  String convert(CaseFormat format, String s) {
    // deal with camel conversion
    StringBuilder out = null;
    int i = 0;
    int j = -1;
    while ((j = wordBoundary.indexIn(s, ++j)) != -1) {
      if (i == 0) {
        // include some extra space for separators
        out = new StringBuilder(s.length() + 4 * format.wordSeparator.length());

  String convert(CaseFormat format, String s) {
    // deal with camel conversion
    StringBuilder out = null;
    int i = 0;
    int j = -1;
    while ((j = wordBoundary.indexIn(s, ++j)) != -1) {
      if (i == 0) {
        // include some extra space for separators
        out = new StringBuilder(s.length() + 4 * format.wordSeparator.length());

    }

    @CanIgnoreReturnValue
    String consumeTokenIfPresent(CharMatcher matcher) {
      checkState(hasMore());
      int startPosition = position;
      position = matcher.negate().indexIn(input, startPosition);
      return hasMore() ? input.substring(startPosition, position) : input.substring(startPosition);
    }

    String consumeToken(CharMatcher matcher) {
      int startPosition = position;

    }

    @CanIgnoreReturnValue
    String consumeTokenIfPresent(CharMatcher matcher) {
      checkState(hasMore());
      int startPosition = position;
      position = matcher.negate().indexIn(input, startPosition);
      return hasMore() ? input.substring(startPosition, position) : input.substring(startPosition);
    }

    String consumeToken(CharMatcher matcher) {
      int startPosition = position;