// is of the format [A-Z][a-z]{3}.
func getScriptID(idx tag.Index, s []byte) (Script, error) {
	i, err := findIndex(idx, s, "Zzzz")
	return Script(i), err
}

// String returns the script code in title case.
// It returns "Zzzz" for an unspecified script.
func (s Script) String() string {
	if s == 0 {
		return "Zzzz"
	}
	return script.Elem(int(s))
}

// for Serbian.
// If a script cannot be inferred (Zzzz, No) is returned. We do not use Zyyy (undetermined)
// as one would suspect from the IANA registry for BCP 47. In a Unicode context Zyyy marks
// common characters (like 1, 2, 3, '.', etc.) and is therefore more like multiple scripts.
// See https://www.unicode.org/reports/tr24/#Values for more details. Zzzz is also used for
// unknown value in CLDR.  (Zzzz, Exact) is returned if Zzzz was explicitly specified.

	IsRoot() bool
	Parent() language.Tag
}

// Make a compact Tag from a fully specified internal language Tag.
func Make(t language.Tag) (tag Tag) {
	if region := t.TypeForKey("rg"); len(region) == 6 && region[2:] == "zzzz" {
		if r, err := language.ParseRegion(region[:2]); err == nil {
			tFull := t
			t, _ = t.SetTypeForKey("rg", "")
			// TODO: should we not consider "va" for the language tag?
			var exact1, exact2 bool

	// ppc64x:-".*memequal"
	return a[:2] == b
}

func equalConstString4() bool {
	a := string("AAAA")
	b := string("ZZZZ")
	// amd64:-".*memequal"
	// arm64:-".*memequal"
	// ppc64x:-".*memequal"
	return a == b
}

func equalVarString4(a string) bool {
	b := string("ZZZZ")
	// amd64:-".*memequal"
	// arm64:-".*memequal"
	// ppc64x:-".*memequal"
	return a[:4] == b
}

			tt.RegionID = w.RegionID
			tt.RemakeString()
		} else if r := w.RegionID.String(); len(r) == 2 {
			// TODO: also filter macro and deprecated.
			tt, _ = tt.SetTypeForKey("rg", strings.ToLower(r)+"zzzz")
		}
	}
	// Copy options from the user-provided tag into the result tag. This is hard
	// to do after the fact, so we do it here.
	// TODO: add in alternative variants to -u-va-.

      "cni_event_address": "/tmp/cnieventfoo",
      "dns": {},
      "ipam": {},
      "kubernetes": {
        "exclude_namespaces": [
          "istio-system"
        ],
        "kubeconfig": "/etc/cni/net.d/ZZZ-istio-cni-kubeconfig"
      },
      "log_uds_address": "",
      "name": "istio-cni",
      "plugin_log_level": "debug",
      "type": "istio-cni"
    }
  ]

        assertEquals(value, ResourceUtil.resolve(value));

        System.setProperty("abc", "123");

        value = "${abc}";
        assertEquals("123", ResourceUtil.resolve(value));

        value = "xxx${abc}zzz";
        assertEquals("xxx123zzz", ResourceUtil.resolve(value));

        value = "${abc.xyz}";
        assertEquals(value, ResourceUtil.resolve(value));

        System.setProperty("abc.xyz", "789");

        toolchain.javaHome.toString() == systemSpecificAbsolutePath(expectedPath)

        where:
        versionToFind | expectedPath
        7             | "/path/7.9"
        8             | "/path/8.0.zzz.foo" // zzz resolves to a real tool version 999
        14            | "/path/14.0.2+12"
    }

    def "uses j9 toolchain if requested"() {
        given:

      "cni_event_address": "/tmp/cnieventfoo",
      "dns": {},
      "ipam": {},
      "kubernetes": {
        "exclude_namespaces": [
          "istio-system"
        ],
        "kubeconfig": "/etc/cni/net.d/ZZZ-istio-cni-kubeconfig"
      },
      "log_uds_address": "",
      "name": "istio-cni",
      "plugin_log_level": "debug",
      "type": "istio-cni"
    }
  ]

        def targetDir = tmpDir.createDir("target")
        def tooManyRange = (1..(DefaultDeleter.MAX_REPORTED_PATHS + 10))
        def nonDeletableFiles = tooManyRange.collect { targetDir.createFile("zzz-${it}-zzz.txt") }
        FileTime.makeOld(nonDeletableFiles + targetDir)

        and: 'a deleter that cannot delete, records deletion requests and creates new files'
        def triedToDelete = [] as Set<File>