* where the property value is defined.
     */
    enum Source {
        /**
         * Maven system properties. These properties are evaluated very early during the boot process,
         * typically set by Maven itself and flagged as readOnly=true or by users via maven-system.properties files.

	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
	}{
		{"abcd", "abc", runeZero, false, nil},
		{"abcd", "abcd", runeZero, true, nil},

 * we recommend reading the section on Access Control in Keith Brown's
 * "The .NET Developer's Guide to Windows Security" (which is also
 * available online).
 * <p>
 * Direct ACEs are evaluated first in order. The SID of the user performing
 * the operation and the desired access bits are compared to the SID
 * and access mask of each ACE. If the SID matches, the allow/deny flags

	case sqlFnDateAdd:
		return handleDateAdd(r, e.DateAdd, tableAlias)

	case sqlFnDateDiff:
		return handleDateDiff(r, e.DateDiff, tableAlias)
	}

	// For all simple argument functions, we evaluate the arguments here
	argVals := make([]*Value, len(e.SFunc.ArgsList))
	for i, arg := range e.SFunc.ArgsList {
		argVals[i], err = arg.evalNode(r, tableAlias)
		if err != nil {
			return nil, err
		}
	}

  there, we need to do several things to add capability to the default
  configuration of plexus. This document will detail those changes.

Container Enhancements

* ExpressionEvaluator

  Currently, the expression evaluator used to resolve configuration values
  is the DefaultExpressionEvaluator, which is a local variable within the
  implementation of the BasicComponentConfigurator. This ExpressionEvaluator

 */
public interface Rule extends Serializable {

    /**
     * Determines if the given response data matches the rule.
     *
     * @param responseData the response data to be evaluated
     * @return true if the response data matches the rule, false otherwise
     */
    boolean match(ResponseData responseData);

    /**
     * Retrieves the unique identifier for the rule.
     *

func TestEvalSQLSubstring(t *testing.T) {
	evalCases := []struct {
		s           string
		startIdx    int
		length      int
		resExpected string
		errExpected error
	}{
		{"abcd", 1, 1, "a", nil},
		{"abcd", -1, 1, "a", nil},
		{"abcd", 999, 999, "", nil},
		{"", 999, 999, "", nil},
		{"测试abc", 1, 1, "测", nil},
		{"测试abc", 5, 5, "c", nil},
	}

	for i, tc := range evalCases {

     * @return the object defined by the expression
     * @throws IntrospectionException if any
     */
    public static Object evaluate(@Nonnull String expression, @Nullable Object root) throws IntrospectionException {
        return evaluate(expression, root, true);
    }

    /**
     * <p>
     * The implementation supports indexed, nested and mapped properties.
     * </p>
     * <ul>

   * data written to it to the underlying {@link OutputStream}.
   *
   * <p>The {@link OutputStream} should not be written to before or after the hand-off.
   */
  // TODO(user): Evaluate whether it makes sense to always piggyback the computation of a
  // HashCode on an existing OutputStream, compared to creating a separate OutputStream that could

 *
 */
abstract class AbstractMavenPluginDescriptorSourcedParametersValidator extends AbstractMavenPluginParametersValidator {

    // plugin author can provide @Parameter( property = "session" ) in this case property will always evaluate
    // so, we need ignore those

    // source org.apache.maven.plugin.PluginParameterExpressionEvaluator
    private static final List<String> IGNORED_PROPERTY_VALUES = Arrays.asList(
            "basedir",