protected int countOccurrences(final String line, final char ch) {
        int count = 0;
        boolean inQuotes = false;

        for (int i = 0; i < line.length(); i++) {
            final char c = line.charAt(i);
            if (c == '"') {
                inQuotes = !inQuotes;
            } else if (c == ch && !inQuotes) {
                count++;
            }
        }

        return count;
    }

    }

    private boolean processQuote() {
        if (peekc == QUOTE) {
            ttype = QUOTE;
            int i = 0;
            int d = read();
            int c = d;
            while (d >= 0) {
                if (d == QUOTE) {
                    final int d2 = read();
                    if (d2 == QUOTE) {
                        c = QUOTE;
                    } else {
                        d = d2;

    }

    public void test_escapeXml_allSpecialChars() {
        // Test all special characters
        String input = "Test & < > \"quote\" 'apos'";
        String expected = "Test &amp; &lt; &gt; &quot;quote&quot; &apos;apos&apos;";
        assertEquals(expected, XmlUtil.escapeXml(input));
    }

    public void test_escapeXml_noSpecialChars() {

     * Multi-word values are wrapped in double quotes with internal quotes replaced by spaces.
     *
     * @param value the string value to quote
     * @return the quoted string if it contains spaces, otherwise the original value
     */
    protected String quote(final String value) {
        if (value.split("\\s").length > 1) {

    @Override
    protected String asEsIndex() {
        if (indexName == null) {
            final String name = ComponentUtil.getFessConfig().getIndexUserIndex();
            indexName = super.asEsIndex().replaceFirst(Pattern.quote("fess_user"), name);
        }
        return indexName;
    }

    @Override
    protected <RESULT extends Role> RESULT createEntity(final Map<String, Object> source, final Class<? extends RESULT> entityType) {

    @Override
    protected String asEsIndex() {
        if (indexName == null) {
            final String name = ComponentUtil.getFessConfig().getIndexUserIndex();
            indexName = super.asEsIndex().replaceFirst(Pattern.quote("fess_user"), name);
        }
        return indexName;
    }

    @Override
    protected <RESULT extends Group> RESULT createEntity(final Map<String, Object> source, final Class<? extends RESULT> entityType) {

    @Override
    protected String asEsIndex() {
        if (indexName == null) {
            final String name = ComponentUtil.getFessConfig().getIndexUserIndex();
            indexName = super.asEsIndex().replaceFirst(Pattern.quote("fess_user"), name);
        }
        return indexName;
    }

    @Override
    protected <RESULT extends User> RESULT createEntity(final Map<String, Object> source, final Class<? extends RESULT> entityType) {

            return "^" + Pattern.quote(s.substring(1, s.length() - 1)) + "$";
        }
        if (s.startsWith("^")) {
            return "^" + Pattern.quote(s.substring(1));
        }
        if (s.endsWith("$")) {
            return Pattern.quote(s.substring(0, s.length() - 1)) + "$";
        }
        return Pattern.quote(s);
    }

    /**

         *
         * @param value the configuration value string to parse
         */
        public Config(final String value) {
            values = StreamUtil.split(value, Pattern.quote("|")).get(stream -> stream.map(String::trim).toArray(n -> new String[n]));
        }

        /**
         * Checks if the cache option is enabled in the configuration.

        assertFalse(CharUtil.isUrlChar('<')); // less than
        assertFalse(CharUtil.isUrlChar('>')); // greater than
        assertFalse(CharUtil.isUrlChar('"')); // double quote
        assertFalse(CharUtil.isUrlChar('\\')); // backslash
        assertFalse(CharUtil.isUrlChar('`')); // backtick
    }

    public void test_isUrlChar_controlCharacters() {
        // Test control characters