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

    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();
          if (HttpHeaders.ACCEPT.equalsIgnoreCase(headerName)) {
            List<String> acceptHeaders = parseAcceptHeaders(headerValue);
            headers.put(headerName, acceptHeaders);

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      if (uriObject.isAbsolute()) {
        Pattern regexRequestUri = Pattern.compile(baseUri + "/([^/][^?]*)(\\?.*)?");
        if (uriScanner.hasNext(regexRequestUri)) {
          uriScanner.next(regexRequestUri);
          MatchResult result = uriScanner.match();
          if (result.groupCount() == 2) {
            odataPathSegmentsAsString = result.group(1);
            queryParametersAsString = result.group(2) != null ? result.group(2) : "";
          } else {
            uriScanner.close();
            throw new BatchException(BatchException.INVALID_URI.addContent(currentLineNumber));

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      } else {
        Pattern regexRequestUri = Pattern.compile("([^/][^?]*)(\\?.*)?");
        if (uriScanner.hasNext(regexRequestUri)) {
          uriScanner.next(regexRequestUri);
          MatchResult result = uriScanner.match();
          if (result.groupCount() == 2) {
            odataPathSegmentsAsString = result.group(1);
            queryParametersAsString = result.group(2) != null ? result.group(2) : "";
          } else {
            uriScanner.close();
            throw new BatchException(BatchException.INVALID_URI.addContent(currentLineNumber));

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    Map<String, String> queryParametersMap = new HashMap<String, String>();
    Pattern regex = Pattern.compile("(?:" + baseUri + "/)?" + "[^?]+" + "\\?(.*)");
    if (uriScanner.hasNext(regex)) {
      uriScanner.next(regex);
      MatchResult uriResult = uriScanner.match();
      if (uriResult.groupCount() == 1) {
        String queryParams = uriResult.group(1);
        Scanner queryParamsScanner = new Scanner(queryParams).useDelimiter("&");
        while (queryParamsScanner.hasNext(REG_EX_QUERY_PARAMETER)) {
          queryParamsScanner.next(REG_EX_QUERY_PARAMETER);
          MatchResult result = queryParamsScanner.match();

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        String queryParams = uriResult.group(1);
        Scanner queryParamsScanner = new Scanner(queryParams).useDelimiter("&");
        while (queryParamsScanner.hasNext(REG_EX_QUERY_PARAMETER)) {
          queryParamsScanner.next(REG_EX_QUERY_PARAMETER);
          MatchResult result = queryParamsScanner.match();
          if (result.groupCount() == 2) {
            String systemQueryOption = result.group(1);
            String value = result.group(2);
            queryParametersMap.put(systemQueryOption, Decoder.decode(value));
          } else {
            queryParamsScanner.close();

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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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    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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      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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