go func() { x = i; c <- 1 }()
	<-c
	return
}

func main() {
	p, q := i_escapes(1), i_escapes(2)
	chk(p, q, 1, "i_escapes")

	p, q = j_escapes(3), j_escapes(4)
	chk(p, q, 3, "j_escapes")

	p, q = k_escapes(5), k_escapes(6)
	chk(p, q, 5, "k_escapes")

	p, q = in_escapes(7), in_escapes(8)
	chk(p, q, 7, "in_escapes")

	p, q = select_escapes(9), select_escapes(10)
	chk(p, q, 9, "select_escapes")

// always true.
func EscapeString(s string) string {
	return htmlEscaper.Replace(s)
}

// UnescapeString unescapes entities like "&lt;" to become "<". It unescapes a
// larger range of entities than EscapeString escapes. For example, "&aacute;"
// unescapes to "á", as does "&#225;" and "&#xE1;".
// UnescapeString(EscapeString(s)) == s always holds, but the converse isn't
// always true.

			ok = false
			return ""
		}
	})
	if !ok {
		return "", false
	}
	return ident, true
}

var unexpandMatcher = regexp.MustCompile(`(_{2}[^_]+_{2})`)

// Unescape unescapes an CEL identifier containing the escape sequences described in Escape, or return false if the
// string contains invalid escape sequences. The escaped input is expected to be a valid CEL identifier, but is
// not checked.

    ```
  }];

  let arguments = (ins
      F32:$out_scale,
      TFR_TensorListType:$in_scales);

  let results = (outs TFR_TensorType:$scale_factor);

  let assemblyFormat = [{
    `(` $out_scale `,` $in_scales `)` attr-dict `:` functional-type(operands, results)
  }];

  let hasCanonicalizer = 1;
}

	matches := []struct {
		pattern  string
		paths    []string // paths that match the pattern
		paths121 []string // paths that matched the pattern in Go 1.21.
	}{
		{
			"/a", // this pattern matches a path that unescapes to "/a"
			[]string{"/a", "/%61"},
			[]string{"/a", "/%61"},
		},
		{
			"/%62", // patterns are unescaped by segment; matches paths that unescape to "/b"
			[]string{"/b", "/%62"},

				_, err = p.output.Write(aNewline)
			case tabwriter.Escape:
				_, err = p.output.Write(p.space)
				p.state = inEscape
				m = n + 1 // +1: skip tabwriter.Escape
			default:
				_, err = p.output.Write(p.space)
				p.state = inText
				m = n
			}
		case inEscape:
			if b == tabwriter.Escape {
				_, err = p.output.Write(data[m:n])
				p.resetSpace()
			}
		case inText:

type UnescapedRune struct {
	r rune
}

func (i UnescapedRune) Error() string {
	return fmt.Sprintf("invalid field selector: unescaped character in value: %v", i.r)
}

// UnescapeValue unescapes a fieldSelector value and returns the original literal value.
// May return the original string if it contains no escaped or special characters.
func UnescapeValue(s string) (string, error) {

//
// PathUnescape is identical to [QueryUnescape] except that it does not
// unescape '+' to ' ' (space).
func PathUnescape(s string) (string, error) {
	return unescape(s, encodePathSegment)
}

// unescape unescapes a string; the mode specifies
// which section of the URL string is being unescaped.
func unescape(s string, mode encoding) (string, error) {
	// Count %, check that they're well-formed.
	n := 0
	hasPlus := false

//  2. parse the nocallback and noescape directives.
func (f *File) ProcessCgoDirectives() {
	linesIn := strings.Split(f.Preamble, "\n")
	linesOut := make([]string, 0, len(linesIn))
	f.NoCallbacks = make(map[string]bool)
	f.NoEscapes = make(map[string]bool)
	for _, line := range linesIn {
		l := strings.TrimSpace(line)
		if len(l) < 5 || l[:4] != "#cgo" || !unicode.IsSpace(rune(l[4])) {
			linesOut = append(linesOut, line)
		} else {

	}
	if noCallback {
		fmt.Fprintf(fgo2, "\t_Cgo_no_callback(false)\n")
	}

	// skip _Cgo_use when noescape exist,
	// so that the compiler won't force to escape them to heap.
	if !p.noEscapes[n.C] {
		fmt.Fprintf(fgo2, "\tif _Cgo_always_false {\n")
		if d.Type.Params != nil {
			for i := range d.Type.Params.List {
				fmt.Fprintf(fgo2, "\t\t_Cgo_use(p%d)\n", i)
			}
		}
		fmt.Fprintf(fgo2, "\t}\n")