String completeHex = "0[xX]" + hex + "[pP][+-]?\\d+#[fFdD]?";
    String fpPattern = "[+-]?(?:NaN|Infinity|" + completeDec + "|" + completeHex + ")";
    fpPattern =
        fpPattern.replace(
            "#",
            "+"
            );
    return
    java.util.regex.Pattern
        .compile(fpPattern);
  }

  /**

    /** Format identifier for PDF date parsing */
    private static final String PDF_DATE = "pdf_date";

    /** Regular expression pattern for matching email addresses */
    private static final Pattern EMAIL_ADDRESS_PATTERN =
            Pattern.compile("[A-Z0-9._%+-]+@[A-Z0-9.-]+\\.[A-Z]{2,6}", Pattern.CASE_INSENSITIVE);

    /**
     * Cache for storing resource file modification timestamps to enable cache busting.

        }
        if (StringUtil.isNotBlank(pager.requestedTimeRange)) {
            final String[] values = pager.requestedTimeRange.split(" - ");
            final DateTimeFormatter formatter = DateTimeFormatter.ofPattern(YYYY_MM_DD_HH_MM);
            try {
                if (values.length > 0) {
                    cb.query().setRequestedAt_GreaterEqual(parseDateTime(values[0], formatter));
                }

    }

    /**
     * Converts a pattern string to a plain pattern string without delimiters.
     *
     * @param pattern the pattern string
     * @return the plain pattern string without delimiters
     */
    protected static String toPlainPattern(final String pattern) {
        final StringBuilder buf = new StringBuilder(pattern.length());
        for (int i = 0; i < pattern.length(); ++i) {

  }

  static CommonPattern compilePattern(String pattern) {
    Preconditions.checkNotNull(pattern);
    return patternCompiler.compile(pattern);
  }

  static boolean patternCompilerIsPcreLike() {
    return patternCompiler.isPcreLike();
  }

  private static PatternCompiler loadPatternCompiler() {
    // We want the JDK Pattern compiler:
    // - under Android (where it hurts startup performance)

     * @param pattern
     *            the pattern string
     * @return the converted {@literal long}
     */
    public static long toPrimitiveLong(final Object o, final String pattern) {
        return switch (o) {
        case null -> 0L;
        case Number n -> n.longValue();
        case String s -> toPrimitiveLong(s);

                    logger.debug("Using exclude pattern: {}", pattern);
                }
            }
            if (paramMap.get(URL_EXCLUDE_PATTERN) instanceof final Pattern pattern) {
                if (pattern.matcher(url).matches()) {
                    if (logger.isDebugEnabled()) {
                        logger.debug("Skipping URL {} due to exclude pattern: {}", url, pattern);
                    }
                    return false;

        } finally {
            System.clearProperty("lasta.env");
        }
    }

    public void test_createPathMatcher_encodeUrl() {
        final Pattern pattern = Pattern.compile("test");
        final Matcher matcher = pattern.matcher("test");
        final BiFunction<String, Matcher, String> pathMatcher = pathMappingHelper.createPathMatcher(matcher, "function:encodeUrl");

        }
    }

    /**
     * Converts a pattern string to a plain pattern string without delimiters.
     *
     * @param pattern
     *            The pattern string.
     * @return The plain pattern string without delimiters.
     */
    protected static String toPlainPattern(final String pattern) {
        final StringBuilder buf = new StringBuilder(pattern.length());
        for (int i = 0; i < pattern.length(); ++i) {

        }
    }

    /**
     * Converts the pattern string to a plain pattern string without delimiters.
     *
     * @param pattern
     *            The pattern string.
     * @return The plain pattern string without delimiters.
     */
    protected static String toPlainPattern(final String pattern) {
        final StringBuilder buf = new StringBuilder(pattern.length());
        for (int i = 0; i < pattern.length(); ++i) {