for more information.
`,
}

var useR = cmdUse.Flag.Bool("r", false, "")

func init() {
	cmdUse.Run = runUse // break init cycle

	base.AddChdirFlag(&cmdUse.Flag)
	base.AddModCommonFlags(&cmdUse.Flag)
}

func runUse(ctx context.Context, cmd *base.Command, args []string) {
	modload.ForceUseModules = true
	modload.InitWorkfile()
	gowork := modload.WorkFilePath()

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Test rune constants, expressions and types.
// Compiles but does not run.

package rune

var (
	r0 = 'a'
	r1 = 'a'+1
	r2 = 1+'a'
	r3 = 'a'*2
	r4 = 'a'/2
	r5 = 'a'<<1
	r6 = 'b'<<2
	r7 int32

	r = []rune{r0, r1, r2, r3, r4, r5, r6, r7}
)

var (
	f0 = 1.2
	f1 = 1.2/'a'

	f = []float64{f0, f1}

docs:
- 'https://istio.io/latest/docs/setup/additional-setup/sidecar-injection/#customizing-injection'
releaseNotes:
- |

	_ = myString([]myByte{'\xf0', '\x9f', '\x8c', '\x8d'}) // "🌍

	// 3
	_ = string([]rune{0x767d, 0x9d6c, 0x7fd4}) // "\u767d\u9d6c\u7fd4" == "白鵬翔"
	_ = string([]rune{})                       // ""
	_ = string([]rune(nil))                    // ""

	type runes []rune
	_ = string(runes{0x767d, 0x9d6c, 0x7fd4}) // "\u767d\u9d6c\u7fd4" == "白鵬翔"

	type myRune rune
	_ = string([]myRune{0x266b, 0x266c}) // "\u266b\u266c" == "♫♬"

Jonh Wendell <******@****.***> 1715709579 -0400

	buf := []byte("Hello, 世界")
	fmt.Println("bytes =", len(buf))
	fmt.Println("runes =", utf8.RuneCount(buf))
	// Output:
	// bytes = 13
	// runes = 9
}

func ExampleRuneCountInString() {
	str := "Hello, 世界"
	fmt.Println("bytes =", len(str))
	fmt.Println("runes =", utf8.RuneCountInString(str))
	// Output:
	// bytes = 13
	// runes = 9
}

func ExampleRuneLen() {
	fmt.Println(utf8.RuneLen('a'))

//	2..0  case mode
//
// For the non-exceptional cases, a rune must be either uncased, lowercase or
// uppercase. If the rune is cased, the XOR pattern maps either a lowercase
// rune to uppercase or an uppercase rune to lowercase (applied to the 10
// least-significant bits of the rune).
//
// See the definitions below for a more detailed description of the various
// bits.
type info uint16

		[]rune{69, 74},
		[]rune{65, 69},
		[]rune{},
		[]uint32{mergeFailed},
		1, 2,
	},
	{
		// overlap from above
		[]rune{69, 74},
		[]rune{71, 74},
		[]rune{},
		[]uint32{mergeFailed},
		1, 2,
	},
	{
		// overlap from below
		[]rune{69, 74},
		[]rune{65, 71},
		[]rune{},
		[]uint32{mergeFailed},
		1, 2,
	},
	{
		// out of order []rune
		[]rune{69, 74, 60, 65},

	// 	is graphic rune
	// 	is number rune
	// 	is printable rune
	// For 'Ὂ':
	// 	is graphic rune
	// 	is letter rune
	// 	is printable rune
	// 	is upper case rune
	// For 'g':
	// 	is graphic rune
	// 	is letter rune
	// 	is lower case rune
	// 	is printable rune
	// For '̀':
	// 	is graphic rune
	// 	is mark rune
	// 	is printable rune
	// For '9':
	// 	is digit rune
	// 	is graphic rune

		fmt.Fprintf(&buf, "\t%#04x,\n", r-0x10000)
	}
	fmt.Fprintf(&buf, "}\n\n")

	// The list of graphic but not "printable" runes is short. Just make one easy table.
	fmt.Fprintf(&buf, "// isGraphic lists the graphic runes not matched by IsPrint.\n")
	fmt.Fprintf(&buf, "var isGraphic = []uint16{\n")
	for r := rune(0); r <= unicode.MaxRune; r++ {
		if unicode.IsPrint(r) != unicode.IsGraphic(r) {
			// Sanity check.