Examples of java.util.regex.MatchResult.groupCount()

java.util.regex.MatchResult.groupCount()
Returns the number of capturing groups in this match result's pattern.
Group zero denotes the entire pattern by convention. It is not included in this count.
Any non-negative integer smaller than or equal to the value returned by this method is guaranteed to be a valid group index for this matcher.
@return The number of capturing groups in this matcher's pattern

        assertEquals("True", result.group());
        assertEquals(0, result.groupCount());
        
        s = new Scanner("True fase");
        assertTrue(s.nextBoolean());
        assertEquals(0, result.groupCount());
        try {
            s.nextBoolean();
            fail("Should throw InputMismatchException");
        } catch (InputMismatchException e) {
            // expected

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        assertEquals(0, result.start());
        assertEquals(4, result.end());
        assertEquals(0, result.start(0));
        assertEquals(4, result.end(0));
        assertEquals("True", result.group());
        assertEquals(0, result.groupCount());
        
    }
     
    /**
     * @throws IOException

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        Scanner scanner = new Scanner( new ByteArrayInputStream( message.getBytes() ) );
        String foundString = scanner.findWithinHorizon( ".*line (\\d+):(\\d+): *([^\\n]*).*", message.length() ); //$NON-NLS-1$
        if ( foundString != null )
        {
            MatchResult result = scanner.match();
            if ( result.groupCount() == 3 )
            {
                ExceptionMessage exceptionMessage = new ExceptionMessage();
                exceptionMessage.lineNumber = result.group( 1 );
                exceptionMessage.columnNumber = result.group( 2 );
                exceptionMessage.cause = result.group( 3 );

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      scanner.next(REG_EX_STATUS_LINE);
      currentLineNumber++;
      final String statusCode;
      final String statusInfo;
      MatchResult result = scanner.match();
      if (result.groupCount() == 2) {
        statusCode = result.group(1);
        statusInfo = result.group(2);
      } else {
        currentLineNumber++;
        throw new BatchException(BatchException.INVALID_STATUS_LINE.addContent(scanner.next()).addContent(

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    while (scanner.hasNext() && !(scanner.hasNext(REG_EX_BLANK_LINE))) {
      if (scanner.hasNext(REG_EX_HEADER)) {
        scanner.next(REG_EX_HEADER);
        currentLineNumber++;
        MatchResult result = scanner.match();
        if (result.groupCount() == 2) {
          String headerName = result.group(1).trim().toLowerCase(Locale.ENGLISH);
          String headerValue = result.group(2).trim();
          headers.put(headerName, headerValue);
        }
      } else {

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    while (scanner.hasNext() && !scanner.hasNext(REG_EX_BLANK_LINE)) {
      if (scanner.hasNext(REG_EX_HEADER)) {
        scanner.next(REG_EX_HEADER);
        currentLineNumber++;
        MatchResult result = scanner.match();
        if (result.groupCount() == 2) {
          String headerName = result.group(1).trim();
          String headerValue = result.group(2).trim();
          if (BatchHelper.HTTP_CONTENT_ID.equalsIgnoreCase(headerName)) {
            if (currentContentId == null) {
              currentContentId = headerValue;

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    }
    if (contentTypeScanner.hasNext(REG_EX_BOUNDARY_PARAMETER)) {
      contentTypeScanner.next(REG_EX_BOUNDARY_PARAMETER);
      MatchResult result = contentTypeScanner.match();
      contentTypeScanner.close();
      if (result.groupCount() == 1 && result.group(1).trim().matches(REG_EX_BOUNDARY)) {
        return trimQuota(result.group(1).trim());
      } else {
        throw new BatchException(BatchException.INVALID_BOUNDARY);
      }
    } else {

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    acceptHeaderScanner.useDelimiter(",\\s?");
    while (acceptHeaderScanner.hasNext()) {
      if (acceptHeaderScanner.hasNext(REG_EX_ACCEPT_WITH_Q_FACTOR)) {
        acceptHeaderScanner.next(REG_EX_ACCEPT_WITH_Q_FACTOR);
        MatchResult result = acceptHeaderScanner.match();
        if (result.groupCount() == 2) {
          String acceptHeaderValue = result.group(1);
          double qualityFactor = result.group(2) != null ? Double.parseDouble(result.group(2)) : 1d;
          qualityFactor = getQualityFactor(acceptHeaderValue, qualityFactor);
          Accept acceptHeader = new Accept().setQuality(qualityFactor).setValue(acceptHeaderValue);
          acceptTree.add(acceptHeader);

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    while (acceptLanguageScanner.hasNext()) {
      if (acceptLanguageScanner.hasNext(REG_EX_ACCEPT_LANGUAGES_WITH_Q_FACTOR)) {
        acceptLanguageScanner.next(REG_EX_ACCEPT_LANGUAGES_WITH_Q_FACTOR);
        MatchResult result = acceptLanguageScanner.match();
        if (result.groupCount() == 2) {
          String languagerange = result.group(1);
          double qualityFactor = result.group(2) != null ? Double.parseDouble(result.group(2)) : 1d;
          acceptTree.add(new Accept().setQuality(qualityFactor).setValue(languagerange));
        } else {
          String acceptLanguage = acceptLanguageScanner.next();

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      scanner.next(REG_EX_REQUEST_LINE);
      currentLineNumber++;
      final String method;
      final String uri;
      MatchResult result = scanner.match();
      if (result.groupCount() == 2) {
        method = result.group(1);
        uri = result.group(2).trim();
      } else {
        currentLineNumber++;
        throw new BatchException(BatchException.INVALID_REQUEST_LINE.addContent(scanner.next()).addContent(

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