description:          "only a single dash",
		},
		{
			beforeMasking:        "-foo",
			expectedAfterMasking: "-foo",
			description:          "has leading dash",
		},
		{
			beforeMasking:        "-foo-",
			expectedAfterMasking: "-foa",
			description:          "has both leading and trailing dashes",
		},
		{
			beforeMasking:        "b-",
			expectedAfterMasking: "a",
			description:          "has trailing dash",
		},

// in 3 float64 parts still gives accurate results. This threshold
// is set by y*C being representable as a float64 without error
// where y is given by y = floor(x * (4 / Pi)) and C is the leading partial
// terms of 4/Pi. Since the leading terms (PI4A and PI4B in sin.go) have 30
// and 32 trailing zero bits, y should have less than 30 significant bits.
//
//	y < 1<<30  -> floor(x*4/Pi) < 1<<30 -> x < (1<<30 - 1) * Pi/4
//

	dirname := "."

	// Remove all but one leading slash.
	for len(path) > 1 && path[0] == '/' && path[1] == '/' {
		path = path[1:]
	}

	i := len(path) - 1

	// Remove trailing slashes.
	for ; i > 0 && path[i] == '/'; i-- {
		path = path[:i]
	}

	// if no slashes in path, base is path
	basename := path

	// Remove leading directory path
	for i--; i >= 0; i-- {
		if path[i] == '/' {

}

// AddExtensionType sets the MIME type associated with
// the extension ext to typ. The extension should begin with
// a leading dot, as in ".html".
func AddExtensionType(ext, typ string) error {
	if !strings.HasPrefix(ext, ".") {
		return fmt.Errorf("mime: extension %q missing leading dot", ext)
	}
	once.Do(initMime)
	return setExtensionType(ext, typ)
}

func setExtensionType(extension, mimeType string) error {

  // Permute updates if `update_window_dims` are leading indices.
  // Other possibilities for `update_window_dims` are not supported yet.
  if (!IsIotaAttr(update_window_dims, update_window_dims.size()))
    return rewriter.notifyMatchFailure(
        scatter_op, "update_window_dims are not leading or trailing indices");

  SmallVector<int64_t, 4> permutation_array(updates_type.getRank());

# Test that an import path containing an element with a leading dot is valid,
# but such a module path is not.
# Verifies #43985.
cd $WORK/gopath/src/dotname
go list ./.dot
stdout '^example.com/dotname/.dot$'
go list ./use
stdout '^example.com/dotname/use$'
! go list -m example.com/dotname/.dot@latest
stderr '^go: example.com/dotname/.dot@latest: malformed module path "example.com/dotname/.dot": leading dot in path element$'

			desc: "Consecutive new lines are combined into a single paragraph",
			in:   "Line1\nLine2",
			out:  "Line1 Line2",
		},
		{
			desc: "Leading and trailing spaces are stripped (single line)",
			in:   "\t  \nThe text line  \n  \t",
			out:  "The text line",
		},
		{
			desc: "Leading and trailing spaces are stripped (multi line)",
			in:   "\t  \nLine1\nLine2  \n  \t",
			out:  "Line1 Line2",
		},
		{

		return 0, err
	}
	return id, nil
}

// TrimString returns s without leading and trailing ASCII space.
func TrimString(s string) string {
	for len(s) > 0 && isASCIISpace(s[0]) {
		s = s[1:]
	}
	for len(s) > 0 && isASCIISpace(s[len(s)-1]) {
		s = s[:len(s)-1]
	}
	return s
}

// TrimBytes returns b without leading and trailing ASCII space.
func TrimBytes(b []byte) []byte {

		if err != nil {
			return nil, err
		}
		return buf.Bytes(), nil
	}

	// Partial source file.
	// Determine and prepend leading space.
	i, j := 0, 0
	for j < len(src) && isSpace(src[j]) {
		if src[j] == '\n' {
			i = j + 1 // byte offset of last line in leading space
		}
		j++
	}
	var res []byte
	res = append(res, src[:i]...)

	// Determine and prepend indentation of first code line.

		if err != nil {
			return nil, err
		}
		return buf.Bytes(), nil
	}

	// Partial source file.
	// Determine and prepend leading space.
	i, j := 0, 0
	for j < len(src) && isSpace(src[j]) {
		if src[j] == '\n' {
			i = j + 1 // byte offset of last line in leading space
		}
		j++
	}
	var res []byte
	res = append(res, src[:i]...)

	// Determine and prepend indentation of first code line.