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

java.util.regex.Matcher.groupCount()
Returns the number of capturing groups in this matcher'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

                                + "Matched substitution "
                                + "pattern, but captured "
                                + m.groupCount() + " groups");
                    }
                    String optionGroup = (
                            (m.groupCount() > 3 && m.group(4) != null)
                            ? (new String(m.group(4))) : null);


                    if (optionGroup != null) {
                        if (optionGroup.indexOf(';') > -1) {
                            modeExecute = true;

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        if (!m.matches()) {
            throw new BadSpecial(SqltoolRB.special_malformat.getString());
            // I think it's impossible to get here, since the pattern is
            // so liberal.
        }
        if (m.groupCount() < 1 || m.groupCount() > 2) {
            // Failed assertion
            throw new RuntimeException(
                    "Internal assertion failed.  Pattern matched, yet captured "
                    + m.groupCount() + " groups");
        }

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        if (!m.matches()) {
            throw new BadSpecial(SqltoolRB.special_malformat.getString());
            // I think it's impossible to get here, since the pattern is
            // so liberal.
        }
        if (m.groupCount() < 1 || m.groupCount() > 2) {
            // Failed assertion
            throw new RuntimeException(
                    "Internal assertion failed.  Pattern matched, yet captured "
                    + m.groupCount() + " groups");
        }

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        }
        if (m.groupCount() < 1 || m.groupCount() > 2) {
            // Failed assertion
            throw new RuntimeException(
                    "Internal assertion failed.  Pattern matched, yet captured "
                    + m.groupCount() + " groups");
        }


        String arg1 = m.group(1);
        String other = ((m.groupCount() > 1) ? m.group(2) : null);

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                    "Internal assertion failed.  Pattern matched, yet captured "
                    + m.groupCount() + " groups");
        }


        String arg1 = m.group(1);
        String other = ((m.groupCount() > 1) ? m.group(2) : null);


        switch (arg1.charAt(0)) {
            case 'q' :
                enforce1charSpecial(arg1, 'q');
                if (other != null) {

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        if (!m.matches()) {
            throw new BadSpecial(SqltoolRB.pl_malformat.getString());
            // I think it's impossible to get here, since the pattern is
            // so liberal.
        }
        if (m.groupCount() < 1 || m.group(1) == null) {
            plMode = true;
            stdprintln(SqltoolRB.pl_expansionmode.getString("on"));
            return;
        }

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            Matcher foreachM = foreachPattern.matcher(
                    dereference(token.val, false));
            if (!foreachM.matches()) {
                throw new BadSpecial(SqltoolRB.foreach_malformat.getString());
            }
            if (foreachM.groupCount() != 2) {
                throw new RuntimeException(
                        "Internal assertion failed.  "
                        + "foreach pattern matched, but captured "
                        + foreachM.groupCount() + " groups");
            }

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            }
            if (foreachM.groupCount() != 2) {
                throw new RuntimeException(
                        "Internal assertion failed.  "
                        + "foreach pattern matched, but captured "
                        + foreachM.groupCount() + " groups");
            }


            String varName   = foreachM.group(1);
            if (varName.indexOf(':') > -1) {
                throw new BadSpecial(SqltoolRB.plvar_nocolon.getString());

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            Matcher ifwhileM= ifwhilePattern.matcher(
                    dereference(token.val, false));
            if (!ifwhileM.matches()) {
                throw new BadSpecial(SqltoolRB.ifwhile_malformat.getString());
            }
            if (ifwhileM.groupCount() != 1) {
                throw new RuntimeException(
                        "Internal assertion failed.  "
                        + "if/while pattern matched, but captured "
                        + ifwhileM.groupCount() + " groups");
            }

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            }
            if (ifwhileM.groupCount() != 1) {
                throw new RuntimeException(
                        "Internal assertion failed.  "
                        + "if/while pattern matched, but captured "
                        + ifwhileM.groupCount() + " groups");
            }


            String[] values =
                    ifwhileM.group(1).replaceAll("!([a-zA-Z0-9*])", "! $1").
                        replaceAll("([a-zA-Z0-9*])!", "$1 !").split("\\s+", -1);

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