TestRule rule = new TestRule("rule1", true);

        ruleManager.addRule(rule);

        assertTrue(ruleManager.hasRule(rule));
        assertEquals(1, ruleManager.getRuleCount());
    }

    /**
     * Test adding multiple rules
     */
    public void test_addRule_multiple() {
        TestRule rule1 = new TestRule("rule1", true);
        TestRule rule2 = new TestRule("rule2", false);

 * rule.addRule("contentType", "text/html");
 * rule.setAllRequired(true); // Both URL and content type must match
 *
 * ResponseData responseData = new ResponseData();
 * responseData.setUrl("https://example.com/page1");
 * responseData.setContentType("text/html");
 *
 * boolean matches = rule.match(responseData); // Returns true
 * }
 * </pre>
 *
 */
public class RegexRule extends AbstractRule {

        assertEquals("", normalizeText("  ", 100, 2, -1, true));
        assertEquals("", normalizeText("\t", 100, 2, -1, true));
        assertEquals("", normalizeText("\t\t", 100, 2, -1, true));
        assertEquals("", normalizeText("\t \t", 100, 2, -1, true));
        assertEquals("12 ab", normalizeText(" 123 abc ", 100, 2, -1, true));
        assertEquals("１２３ あいう", normalizeText("　１２３　あいう　", 100, 2, -1, true));

                synchronized (reloadableFile) {
                    if (timestamp != lastModified) {
                        createSynonymMap(true);
                        return true;
                    }
                }
            }
        }

        if (lastModified != time) {
            return true;
        }

        return false;
    }

    public SynonymMap getSynonymMap() {
        return synonymMap;
    }

        try {
            final File tempFile = File.createTempFile(prefix, suffix, directory);
            tempFile.setReadable(false, false);
            tempFile.setReadable(true, true);
            tempFile.setWritable(false, false);
            tempFile.setWritable(true, true);
            return tempFile;
        } catch (final IOException e) {
            throw new CrawlerSystemException("Could not create a temp file.", e);
        }

    }

    /**
     * Checks if the given input stream contains valid sitemap data.
     * @param in the input stream to validate
     * @return true if the stream contains valid sitemap data, false otherwise
     */
    public boolean isValid(final InputStream in) {
        return isValid(in, true);
    }

    /**
     * Checks if the given input stream contains valid sitemap data.
     * @param in the input stream to validate

    private final List<String> languages = new ArrayList<>();

    private boolean suggestDetail = true;

    private ReadingConverter readingConverter;

    private Normalizer normalizer;

    private float prefixMatchWeight = 2.0f;

    private boolean matchWordFirst = true;

    private boolean skipDuplicateWords = true;

    /**
     * Sets the index name.
     * @param index The index name.
     */

    /**
     * Checks if this SitemapFile is equal to another object.
     * @param obj the object to compare with
     * @return true if the objects are equal, false otherwise
     */
    @Override
    public boolean equals(final Object obj) {
        if (this == obj) {
            return true;
        }
        if (!(obj instanceof final SitemapFile sitemapUrl)) {
            return false;
        }

     * - Uppercase letters (A-Z)
     * - Digits (0-9)
     * - Special characters: . - * _ : / + % = & ? # [ ] @ ~ ! $ ' ( ) , ;
     *
     * @param c the character to check
     * @return {@code true} if the character is a valid URL character, {@code false} otherwise
     */
    public static boolean isUrlChar(final char c) {
        if (c >= 'a' && c <= 'z' //
                || c >= 'A' && c <= 'Z' //

     *
     * @param responseData the response data to check
     * @return true if successful, false otherwise
     */
    protected boolean isSuccessful(final ResponseData responseData) {
        if (successfulHttpCodes == null) {
            return true;
        }
        final int httpStatusCode = responseData.getHttpStatusCode();
        for (final int code : successfulHttpCodes) {