),
    ] = None,
    pattern: Annotated[
        Optional[str],
        Doc(
            """
            RegEx pattern for strings.
            """
        ),
    ] = None,
    regex: Annotated[
        Optional[str],
        Doc(
            """
            RegEx pattern for strings.
            """
        ),
        deprecated(

            <trusting group="^com[.]diffplug($|([.].*))" regex="true"/>
            <trusting group="^org[.]jetbrains($|([.].*))" regex="true"/>
            <trusting group="^org[.]rnorth($|([.].*))" regex="true"/>
         </trusted-key>
         <trusted-key id="8A10792983023D5D14C93B488D7F1BEC1E2ECAE7" group="^com[.]fasterxml($|([.].*))" regex="true"/>

				{
					Uri: &networking.StringMatch{
						MatchType: &networking.StringMatch_Regex{Regex: "^/productpage"},
					},
				},
			},
		},
		{
			name: "url regex conflict",
			root: []*networking.HTTPMatchRequest{
				{
					Uri: &networking.StringMatch{
						MatchType: &networking.StringMatch_Regex{Regex: "^/productpage"},
					},
				},
			},
			delegate: []*networking.HTTPMatchRequest{

		}))
		g.Expect(routeAction.Route.RegexRewrite).To(Equal(&matcher.RegexMatchAndSubstitute{
			Pattern: &matcher.RegexMatcher{
				Regex: "/.*",
			},
			Substitution: "/replace-full",
		}))
	})

	t.Run("for path regex match with regex rewrite", func(t *testing.T) {
		g := NewWithT(t)
		cg := core.NewConfigGenTest(t, core.TestOptions{})

[PARSER]
    Name        containerd
    Format      regex
    Regex       ^(?<time>.+) (?<stream>stdout|stderr) [^ ]* (?<log>.*)$
    Time_Key    time
    Time_Format %Y-%m-%dT%H:%M:%S.%L%z

[PARSER]
    Name        json
    Format      json

[PARSER]
    Name        syslog
    Format      regex

				Pattern: &matcher.RegexMatcher{
					Regex: regexRewrite.Match,
				},
				Substitution: regexRewrite.Rewrite,
			}
		} else if uri := in.Rewrite.GetUri(); uri != "" {
			if model.UseGatewaySemantics(vs) && uri == "/" {
				// remove the prefix
				action.RegexRewrite = &matcher.RegexMatchAndSubstitute{
					Pattern: &matcher.RegexMatcher{

        specs=qc.QuantizationSpecs(
            specs=[
                qc.QuantizationSpec(
                    # Provide a regex that wouldn't match any quantizable units.
                    matcher=qc.MatcherSpec(
                        function_name=qc.FunctionNameMatcherSpec(
                            regex='.*invalid_function_name.*'
                        ),
                    ),

				MatchType: &istio.StringMatch_Regex{Regex: fmt.Sprintf("/[^/]+/%s", *m.Method)},
			}, nil
		}
		return &istio.StringMatch{
			MatchType: &istio.StringMatch_Exact{Exact: fmt.Sprintf("/%s/%s", *m.Service, *m.Method)},
		}, nil
	case k8s.GRPCMethodMatchRegularExpression:
		if m.Method == nil {
			return &istio.StringMatch{
				MatchType: &istio.StringMatch_Regex{Regex: fmt.Sprintf("/%s/.+", *m.Service)},
			}, nil

			setMaxElements:             10,
			expectedSetCost:            3552,
		},
		{
			name:             "regex matches simple",
			schemaGenerator:  genStringWithRule(`self.matches("x")`),
			expectedCalcCost: 314574,
			setMaxElements:   50,
			expectedSetCost:  22,
		},
		{
			name:             "regex matches empty string",
			schemaGenerator:  genStringWithRule(`"".matches("(((((((((())))))))))[0-9]")`),

import java.util.Objects;
import java.util.Optional;
import java.util.Set;
import java.util.function.Function;
import java.util.function.Supplier;
import java.util.function.UnaryOperator;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.stream.Collectors;
import java.util.stream.StreamSupport;

import org.apache.maven.api.di.Inject;
import org.apache.maven.api.di.Named;
import org.apache.maven.api.di.Singleton;