public final CharMatcher matcher;
    public final String matchingChars;

    SampleMatcherConfig(String matchingChars) {
      this(CharMatcher.anyOf(matchingChars), matchingChars);
    }

    SampleMatcherConfig(CharMatcher matcher, String matchingChars) {
      this.matcher = matcher;
      this.matchingChars = matchingChars;
    }
  }

        final Matcher matcher = Pattern.compile(tokenPattern).matcher(content);
        if (matcher.find()) {
            if (logger.isDebugEnabled()) {
                logger.debug("Matched: {}", matcher.group());
            }
            if (matcher.groupCount() > 0) {
                return matcher.group(1);
            }
        }
        return null;
    }

        final Matcher matcher = pattern.matcher(value);
        while (matcher.find()) {
            final String key = matcher.group(2);
            String replacement = System.getProperty(key);
            if (replacement == null) {
                replacement = matcher.group(1);
            }

        }

        Text comment = (Text) firstNode.getFirstChild();
        Matcher matcher = ACCESSOR_COMMENT_PATTERN.matcher(comment.getData());
        if (matcher.lookingAt()) {
            String theOrWhether = matcher.group(1).toLowerCase(Locale.US);
            comment.setData(StringUtils.capitalize(theOrWhether) + " " + comment.getData().substring(matcher.end()));
        }
    }

    // Break apart the domain into UTF-8 labels, i.e. foo.bar.com turns into [foo, bar, com].
    val domainLabelsUtf8Bytes = Array(domainLabels.size) { i -> domainLabels[i].encodeUtf8() }

    // Start by looking for exact matches. We start at the leftmost label. For example, foo.bar.com
    // will look like: [foo, bar, com], [bar, com], [com]. The longest matching rule wins.
    var exactMatch: String? = null
    for (i in domainLabelsUtf8Bytes.indices) {

                    .findFirst()
                    .orElseThrow(() -> new IOException("Can't find package definition in file " + file));
                Matcher matcher = pattern.matcher(packageLine);
                if (matcher.find()) {
                    return matcher.group(1);
                } else {
                    throw new IOException("Can't extract package name from file " + file);
                }
            }

            return null;
        }

        for (final Map.Entry<Pattern, CrawlerClient> entry : clientMap.entrySet()) {
            final Matcher matcher = entry.getKey().matcher(urlKey);
            if (matcher.matches()) {
                return entry.getValue();
            }
        }
        return null;
    }

    /**
     * Sets the initialization parameter map for all clients.

                }
              },
              "type": "special"
            }
          ],
          "unit": "bytes"
        },
        "overrides": [
          {
            "matcher": {
              "id": "byName",
              "options": "Free"
            },
            "properties": [
              {
                "id": "color",
                "value": {

fun parseIanaCsvRow(s: String): SuiteId? {
  if (s.contains("Reserved") || s.contains("Unassigned")) return null
  val matcher = IANA_CSV_PATTERN.matchEntire(s) ?: return null
  val id = (matcher.groupValues[1] + matcher.groupValues[2]).decodeHex()
  return SuiteId(id, matcher.groupValues[3])
}

class IanaSuites(
  val name: String,
  val suites: List<SuiteId>,
) {
  fun fromJavaName(javaName: String): SuiteId =

     * @return True if the status code indicates a redirect, false otherwise
     */
    protected boolean isRedirectHttpStatus(final int httpStatusCode) {
        return redirectHttpStatusPattern.matcher(Integer.toString(httpStatusCode)).matches();
    }

    /**
     * Executes the HTTP client request.
     *
     * @param httpRequest The HTTP request to execute
     * @return The HTTP response