value = resourceName;
            }

            if (value != null) {
                for (final Map.Entry<Pattern, String> entry : passwordMap.entrySet()) {
                    if (entry.getKey().matcher(value).matches()) {
                        return entry.getValue();
                    }
                }
            }
        }

        if (params != null && url != null) {

        // TODO support other type
        return "</doc>";
    }

    protected String trimSpace(final String value) {
        if (trimSpaceEnabled) {
            final Matcher matcher = SPACE_PATTERN.matcher(value);
            return matcher.replaceAll(" ").trim();
        }
        return value;
    }

    public void addFieldRule(final String name, final String xpath) {
        fieldRuleMap.put(name, xpath);

    checkArgument(
        !separatorPattern.matcher("").matches(),
        "The pattern may not match the empty string: %s",
        separatorPattern);

    return new Splitter(
        new Strategy() {
          @Override
          public SplittingIterator iterator(final Splitter splitter, CharSequence toSplit) {
            final CommonMatcher matcher = separatorPattern.matcher(toSplit);

            String line = currentColor + lines[i];

            // look for last ANSI escape sequence to check if nextColor
            Matcher matcher = LAST_ANSI_SEQUENCE.matcher(line);
            String nextColor = "";
            if (matcher.find()) {
                nextColor = matcher.group(1);
                if (ANSI_RESET.equals(nextColor)) {
                    // last ANSI escape code is reset: no next color

   * https://cs.android.com/android/platform/superproject/+/android-2.3.7_r1:libcore/luni/src/main/java/java/util/regex/Matcher.java;l=550;drc=5850271b4ab93ebc27c1d49169a348c6be3c7f04
   */
  private static MatchResult createMatchResult() {
    Matcher matcher = Pattern.compile(".").matcher("X");
    matcher.find();
    return matcher.toMatchResult();
  }

  private static final ClassToInstanceMap<Object> DEFAULTS =

        Pattern pidPattern = isWindows() ? WINDOWS_PID_PATTERN : UNIX_PID_PATTERN;

        psOutput.forEach(line -> {
            Matcher commandLineArgsMatcher = commandLineArgsPattern.matcher(line);
            Matcher pidMatcher = pidPattern.matcher(line);
            if (commandLineArgsMatcher.find() && pidMatcher.find()) {
                String pid = pidMatcher.group(1);
                if (!MY_PID.equals(pid)) {

		{"abcd", "bc", false, "", false},
		{"abcd", "bc", true, "d", true},
	}

	for i, tc := range matcherCases {
		res, ok := matcher(tc.iText, tc.iPat, tc.iHasLeadingPercent)
		if res != tc.resultExpected || ok != tc.matchExpected {
			t.Errorf("Matcher Case %d failed", i)
		}
	}

	evalCases := []struct {
		iText, iPat   string
		iEsc          rune
		matchExpected bool
		errExpected   error
	}{

                }
                return true;
            }
            if (includedPaths.matcher(path).matches()) {
                if (excludedPaths != null && excludedPaths.matcher(path).matches()) {
                    if (logger.isDebugEnabled()) {
                        logger.debug("Path {} matches the include/exclude path expression {} on {} of label.", path, excludedPaths, value);
                    }

    Pattern pattern = Pattern.compile("Multiple entries with same key: four=(.*) and four=(.*)");
    assertThat(expected).hasMessageThat().matches(pattern);
      Matcher matcher = pattern.matcher(expected.getMessage());
      assertThat(matcher.matches()).isTrue();
      assertThat(matcher.group(1)).isNotEqualTo(matcher.group(2));
  }

  public void testOf() {
    assertMapEquals(ImmutableMap.of("one", 1), "one", 1);

            if (hasProjectExpression(s)) {
                String path = pathSupplier.get();
                Matcher matcher = EXPRESSION_PROJECT_NAME_PATTERN.matcher(s);
                while (matcher.find()) {
                    String propertyName = matcher.group(0);

                    if (path.startsWith("activation.file.") && "${project.basedir}".equals(propertyName)) {
                        continue;