return r
}

// ToUpper maps the rune to upper case.
func ToUpper(r rune) rune {
	if r <= MaxASCII {
		if 'a' <= r && r <= 'z' {
			r -= 'a' - 'A'
		}
		return r
	}
	return To(UpperCase, r)
}

// ToLower maps the rune to lower case.
func ToLower(r rune) rune {
	if r <= MaxASCII {
		if 'A' <= r && r <= 'Z' {
			r += 'a' - 'A'
		}
		return r
	}
	return To(LowerCase, r)
}

		if s[i] < ' ' || s[i] > '~' {
			return false
		}
	}
	return true
}

// Is returns whether s is ASCII.
func Is(s string) bool {
	for i := 0; i < len(s); i++ {
		if s[i] > unicode.MaxASCII {
			return false
		}
	}
	return true
}

// ToLower returns the lowercase version of s if s is ASCII and printable.
func ToLower(s string) (lower string, ok bool) {
	if !IsPrint(s) {
		return "", false

					" outside of Plan 9, which has different code path than Windows and Unix that this test"+
					" isn't testing.", s)
			}
			if c > unicode.MaxASCII {
				t.Skipf("skipping %#q: contains a non-ASCII character %q", s, c)
			}
			if !unicode.IsGraphic(rune(c)) && !unicode.IsSpace(rune(c)) {
				t.Skipf("skipping %#q: contains non-graphic character %q", s, c)
			}

	var buf []byte
	for i, arg := range args {
		if i > 0 {
			buf = append(buf, ' ')
		}
		var sawSpace, sawSingleQuote, sawDoubleQuote bool
		for _, c := range arg {
			switch {
			case c > unicode.MaxASCII:
				continue
			case isSpaceByte(byte(c)):
				sawSpace = true
			case c == '\'':
				sawSingleQuote = true
			case c == '"':
				sawDoubleQuote = true
			}
		}
		switch {

		}
		// splitPkgConfigOutput itself rejects inputs that contain unquoted
		// shell operator characters. (Quoted shell characters are fine.)

		for _, c := range b {
			if c > unicode.MaxASCII {
				t.Skipf("skipping %#q: contains a non-ASCII character %q", b, c)
			}
			if !unicode.IsGraphic(rune(c)) && !unicode.IsSpace(rune(c)) {
				t.Skipf("skipping %#q: contains non-graphic character %q", b, c)
			}
		}

var Lycian <type 1>;
var Lydian <type 1>;
var M <type 1>;
var Mahajani <type 1>;
var Malayalam <type 1>;
var Mandaic <type 1>;
var Manichaean <type 1>;
var Marchen <type 1>;
var Mark <type 1>;
const MaxASCII = 127' ;
const MaxCase = 3 ;
const MaxLatin1 = 255' ;
const MaxRune = 1114111' ;
var Mc <type 1>;
var Me <type 1>;
var Meetei_Mayek <type 1>;
var Mende_Kikakui <type 1>;
var Meroitic_Cursive <type 1>;

		}
	})
}

func FuzzRuneRoundTrip(f *testing.F) {
	f.Add(rune(-1))
	f.Add(rune(0xd800))
	f.Add(rune(0xdfff))
	f.Add(rune(unicode.ReplacementChar))
	f.Add(rune(unicode.MaxASCII))
	f.Add(rune(unicode.MaxLatin1))
	f.Add(rune(unicode.MaxRune))
	f.Add(rune(unicode.MaxRune + 1))
	f.Add(rune(-0x80000000))
	f.Add(rune(0x7fffffff))

	f.Fuzz(func(t *testing.T, r1 rune) {

	}

	// Since pod logs path is used in metrics, make sure it contains only ASCII characters.
	for _, c := range kc.PodLogsDir {
		if c > unicode.MaxASCII {
			allErrors = append(allErrors, fmt.Errorf("invalid configuration: pod logs path %q mut contains ASCII characters only", kc.PodLogsDir))
			break
		}
	}

	return utilerrors.NewAggregate(allErrors)

		l.parenDepth++
		return l.emit(itemLeftParen)
	case r == ')':
		l.parenDepth--
		if l.parenDepth < 0 {
			return l.errorf("unexpected right paren")
		}
		return l.emit(itemRightParen)
	case r <= unicode.MaxASCII && unicode.IsPrint(r):
		return l.emit(itemChar)
	default:
		return l.errorf("unrecognized character in action: %#U", r)
	}
}

// lexSpace scans a run of space characters.

func IsRelaxedEnvVarName(value string) []string {
	var errs []string

	if len(value) == 0 {
		errs = append(errs, "environment variable name "+EmptyError())
	}

	for _, r := range value {
		if r > unicode.MaxASCII || !unicode.IsPrint(r) || r == '=' {
			errs = append(errs, relaxedEnvVarNameFmtErrMsg)
			break
		}
	}

	return errs
}

const configMapKeyFmt = `[-._a-zA-Z0-9]+`