begin := rand.Intn(len(s) + 1)
				end := begin + rand.Intn(len(s)+1-begin)
				sep := s[begin:end]
				if i%4 == 0 {
					pos := rand.Intn(len(sep) + 1)
					sep = sep[:pos] + "A" + sep[pos:]
				}
				want := simpleIndex(s, sep)
				res := Index(s, sep)
				if res != want {
					t.Errorf("Index(%s,%s) = %d; want %d", s, sep, res, want)
				}
			}
		}
	}
}

func TestIndexRune(t *testing.T) {

func benchmarkIndexHard(b *testing.B, sep []byte) {
	for i := 0; i < b.N; i++ {
		Index(benchInputHard, sep)
	}
}

func benchmarkLastIndexHard(b *testing.B, sep []byte) {
	for i := 0; i < b.N; i++ {
		LastIndex(benchInputHard, sep)
	}
}

func benchmarkCountHard(b *testing.B, sep []byte) {
	for i := 0; i < b.N; i++ {
		Count(benchInputHard, sep)
	}
}

//
// list = [ f { sep f } [sep] ] close .
func (p *parser) list(context string, sep, close token, f func() bool) Pos {
	if debug && (sep != _Comma && sep != _Semi || close != _Rparen && close != _Rbrace && close != _Rbrack) {
		panic("invalid sep or close argument for list")
	}

	done := false
	for p.tok != _EOF && p.tok != close && !done {
		done = f()
		// sep is optional before close

			if len(f.Names) > 0 {
				// named fields
				p.identList(f.Names, false)
				p.print(sep)
				p.expr(f.Type)
				extraTabs = 1
			} else {
				// anonymous field
				p.expr(f.Type)
				extraTabs = 2
			}
			if f.Tag != nil {
				if len(f.Names) > 0 && sep == vtab {
					p.print(sep)
				}
				p.print(sep)
				p.expr(f.Tag)
				extraTabs = 0
			}
			if f.Comment != nil {

	}
}

func TestMultipleGOPATHEntriesReportedSeparately(t *testing.T) {
	tg := testgo(t)
	defer tg.cleanup()
	tg.parallel()
	sep := string(filepath.ListSeparator)
	tg.setenv("GOPATH", filepath.Join(tg.pwd(), "testdata", "a")+sep+filepath.Join(tg.pwd(), "testdata", "b"))
	tg.runFail("install", "foo/quxx")
	if tg.grepCountBoth(`testdata[/\\].[/\\]src[/\\]foo[/\\]quxx`) != 2 {

	}
	if goarch == "riscv64" {
		xprintf(format, "GORISCV64", goriscv64)
	}
	xprintf(format, "GOWORK", "off")

	if *path {
		sep := ":"
		if gohostos == "windows" {
			sep = ";"
		}
		xprintf(format, "PATH", fmt.Sprintf("%s%s%s", gorootBin, sep, os.Getenv("PATH")))

		// Also include $DIST_UNMODIFIED_PATH with the original $PATH
		// for the internal needs of "dist banner", along with export

	servicePortPolicyLocalChainNamePrefix   = "KUBE-SVL-"
	serviceFirewallChainNamePrefix          = "KUBE-FW-"
	serviceExternalChainNamePrefix          = "KUBE-EXT-"
	servicePortEndpointChainNamePrefix      = "KUBE-SEP-"
)

// servicePortPolicyClusterChain returns the name of the KUBE-SVC-XXXX chain for a service, which is the
// main iptables chain for that service, used for dispatching to endpoints when using `Cluster`

    )

    vocab_file = asset.Asset(asset_file)

    raw_vocab = io_ops.read_file(vocab_file)
    vocabs = ragged_string_ops.string_split_v2(
        string_ops.string_strip(raw_vocab), sep=','
    )

    # Initialize the vocab table. Each comma-separated word in vocab_file.txt
    # corresponds to the numeric identifiers in `values`.
    kv_init = lookup_ops.KeyValueTensorInitializer(

}

// hasSubdir reports if dir is within root by performing lexical analysis only.
func hasSubdir(root, dir string) (rel string, ok bool) {
	const sep = string(filepath.Separator)
	root = filepath.Clean(root)
	if !strings.HasSuffix(root, sep) {
		root += sep
	}
	dir = filepath.Clean(dir)
	after, found := strings.CutPrefix(dir, root)
	if !found {
		return "", false
	}
	return filepath.ToSlash(after), true

	for i, uc := range uss.clients {
		nThreads := uc.nThreads
		if uc.split && !last {
			nThreads = nThreads / 2
		}
		sep := uc.thinkDuration
		demands[i] = float64(nThreads) * float64(uc.initialSeats) * float64(uc.execDuration) / float64(sep+uc.execDuration)
		averages[i] = uss.execSeatsIntegrators[i].Reset().Average
	}
	fairAverages := uss.expectedAverages
	if fairAverages == nil {