Pattern[] patterns = (Pattern[]) propMap.get(CRAWLER_METADATA_CONTENT_EXCLUDES);
        if (patterns == null) {
            patterns = split(getCrawlerMetadataContentExcludes(), ",")
                    .get(stream -> stream.filter(StringUtil::isNotBlank).map(Pattern::compile).toArray(n -> new Pattern[n]));
            propMap.put(CRAWLER_METADATA_CONTENT_EXCLUDES, patterns);
        }

crawler.document.html.default.lang=
# Patterns to include for HTML index processing.
crawler.document.html.default.include.index.patterns=
# Patterns to exclude for HTML index processing.
crawler.document.html.default.exclude.index.patterns=(?i).*(css|js|jpeg|jpg|gif|png|bmp|wmv|xml|ico|exe)
# Patterns to include for HTML search processing.
crawler.document.html.default.include.search.patterns=
# Patterns to exclude for HTML search processing.

     *
     * @param convertUrlMap the map of regex patterns to replacement strings
     */
    public void setConvertUrlMap(final Map<String, String> convertUrlMap) {
        this.convertUrlMap.putAll(convertUrlMap);
    }

    /**
     * Adds a URL conversion rule.
     *
     * @param regex the regular expression pattern to match
     * @param replacement the replacement string
     */

/**
 * <b>Do not use this class directly. For access to public-suffix information, use {@link
 * com.google.common.net.InternetDomainName}.</b>
 *
 * <p>A generated static class containing public members which provide domain name patterns used in
 * determining whether a given domain name is an effective top-level domain (public suffix).
 *
 * <p>Because this class is used in GWT, the data members are stored in a space-efficient manner.
 * See {@link TrieParser}.

        }
        return getQuerySet().map(querySet -> {
            final String pattern = querySet.stream().map(LaFunctions::h).map(Pattern::quote).collect(Collectors.joining("|"));
            if (StringUtil.isBlank(pattern)) {
                return null;
            }
            final Matcher matcher = Pattern.compile(pattern, Pattern.CASE_INSENSITIVE | Pattern.UNICODE_CASE).matcher(value);

     *
     * @param ldapUser the LDAP user to retrieve roles for
     * @param bindDn the bind DN for LDAP connection
     * @param accountFilter the account filter pattern
     * @param groupFilter the group filter pattern
     * @param lazyLoading the lazy loading consumer for roles
     * @return an array of role names
     */

   *
   * The coding pattern above is heavily used in java.util, e.g. in ArrayList. There is a
   * RangeCheckMicroBenchmark in the JDK that was used to test this.
   *
   * But the methods in this class want to throw different exceptions, depending on the args, so it
   * appears that this pattern is not directly applicable. But we can use the ridiculous, devious

      return description;
    }
  }

  /** Implementation of {@link #digit()}. */
  private static final class Digit extends RangesMatcher {
    // Plug the following UnicodeSet pattern into
    // https://unicode.org/cldr/utility/list-unicodeset.jsp
    // [[:Nd:]&[:nv=0:]&[\u0000-\uFFFF]]
    // and get the zeroes from there.

    // Must be in ascending order.

  }

  @Override
  public boolean containsValue(@Nullable Object value) {
    if (value == null) {
      return false;
    }

    // This implementation is patterned after ConcurrentHashMap, but without the locking. The only
    // way for it to return a false negative would be for the target value to jump around in the map