static {
        setup(defaultCtype);
    }

    /**
     * {@link Tokenizer}を作成します。
     *
     * @param str
     *            文字列。{@literal null}であってはいけません
     */
    public Tokenizer(final String str) {
        this(str, defaultCtype);
    }

    /**
     * {@link Tokenizer}を作成します。
     *
     * @param str
     *            文字列。{@literal null}であってはいけません
     * @param ctype

         */
        public ObjectBasedValueSource(Object root) {
            super(true);
            this.root = root;
        }

        /**
         * <p>Split the expression into parts, tokenized on the dot ('.') character. Then,
         * starting at the root object contained in this value source, apply each part
         * to the object graph below this root, using either 'getXXX()' or 'isXXX()'

    public void testEOF() throws Exception {
        final Tokenizer tokenizer = new Tokenizer("");
        assertThat(tokenizer.nextToken(), is(Tokenizer.TT_EOF));
        assertThat(tokenizer.nextToken(), is(Tokenizer.TT_EOF));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testWhitespace() throws Exception {
        final Tokenizer tokenizer = new Tokenizer("\t       \n");

    checkNotNull(input);
    Tokenizer tokenizer = new Tokenizer(input);
    try {
      String type = tokenizer.consumeToken(TOKEN_MATCHER);
      consumeSeparator(tokenizer, '/');
      String subtype = tokenizer.consumeToken(TOKEN_MATCHER);
      ImmutableListMultimap.Builder<String, String> parameters = ImmutableListMultimap.builder();
      while (tokenizer.hasMore()) {
        consumeSeparator(tokenizer, ';');

                }
            }
            if (idx < tok.length) {
                qualifier = tok[idx++];
                fallback = isDigits(qualifier);
            }

            // string tokenizer won't detect these and ignores them
            if (part1.contains("..") || part1.startsWith(".") || part1.endsWith(".")) {
                fallback = true;
            }

            if (fallback) {