// A return value of nil indicates no match.
func (re *Regexp) FindIndex(b []byte) (loc []int) {
	a := re.doExecute(nil, b, "", 0, 2, nil)
	if a == nil {
		return nil
	}
	return a[0:2]
}

// FindString returns a string holding the text of the leftmost match in s of the regular
// expression. If there is no match, the return value is an empty string,
// but it will also be empty if the regular expression successfully matches

				t.Errorf("expected %q got %q: %s", expect, result, test)
			}
		}
	}
}

func TestFindString(t *testing.T) {
	for _, test := range findTests {
		result := MustCompile(test.pat).FindString(test.text)
		switch {
		case len(test.matches) == 0 && len(result) == 0:
			// ok
		case test.matches == nil && result != "":
			t.Errorf("expected no match; got one: %s", test)

		{"KindBool", Const, 21},
		{"KindDuration", Const, 21},
		{"KindFloat64", Const, 21},
		{"KindGroup", Const, 21},
		{"KindInt64", Const, 21},
		{"KindLogValuer", Const, 21},
		{"KindString", Const, 21},
		{"KindTime", Const, 21},
		{"KindUint64", Const, 21},
		{"Level", Type, 21},
		{"LevelDebug", Const, 21},
		{"LevelError", Const, 21},
		{"LevelInfo", Const, 21},

# Our build tools, post jammy, breaks old versions of docker.
# These old versions are surprisingly common, so build in a check here
define warning
Docker version is too old, please upgrade to a newer version.
endef
ifneq ($(findstring google,$(HOSTNAME)),)
warning+=Googlers: go/installdocker\#the-version-of-docker-thats-installed-is-old-eg-1126
endif
# The old docker issue manifests as not being able to run *any* binary. So we can test

// ParseIstioVersion parses a version string and returns IstioVersion struct
func ParseIstioVersion(ver string) *IstioVersion {
	// strip the release- prefix if any and extract the version string
	ver = istioVersionRegexp.FindString(strings.TrimPrefix(ver, "release-"))

	if ver == "" {
		// return very large values assuming latest version
		return MaxIstioVersion
	}

	parts := strings.Split(ver, ".")

								b2 = b3
							}
						}
						toPrint = append(toPrint, fmt.Sprintf("\t%s: %s", string(b), string(b2)))
					} else if c.Bool("combine") && isPart.MatchString(file.Name) {
						// name := isPart.FindString(file.Name)
						name := strings.ReplaceAll(file.Name, ":", "_")
						r, err := file.Open()
						if err != nil {
							return err
						}
						all, err := io.ReadAll(r)
						if err != nil {

		// If there are opcode checks associated to this source file/line,
		// run the checks.
		if ops, found := fullops[srcFileLine]; found {
			for i := range ops {
				if !ops[i].found && ops[i].opcode.FindString(asm) != "" {
					ops[i].found = true
				}
			}
		}
	}
	functionMarkers = append(functionMarkers, len(lines))

	var failed []wantedAsmOpcode
	for _, ops := range fullops {

8359634175634084,"touches":2,"min_t":1228936524,"max_t":1236205616,"mean_t":1232571070},{"name":"4920742-1-expected.png","kids":[],"cl_weight":0.0012625845779729648,"touches":3,"min_t":1228936524,"max_t":1236205616,"mean_t":1231540308},{"name":"findString-2-expected.checksum","kids":[],"cl_weight":0.0010036404777328675,"touches":2,"min_t":1229474548,"max_t":1236205616,"mean_t":1232840082},{"name":"4786404-1-expected.checksum","kids":[],"cl_weight":0.0012625845779729648,"touches":3,"min_t":122893...

pkg regexp, method (*Regexp) FindIndex([]uint8) []int
pkg regexp, method (*Regexp) FindReaderIndex(io.RuneReader) []int
pkg regexp, method (*Regexp) FindReaderSubmatchIndex(io.RuneReader) []int
pkg regexp, method (*Regexp) FindString(string) string
pkg regexp, method (*Regexp) FindStringIndex(string) []int
pkg regexp, method (*Regexp) FindStringSubmatch(string) []string
pkg regexp, method (*Regexp) FindStringSubmatchIndex(string) []int