strings.Repeat("\x00", blockSize-100) + strings.Repeat("0123456789", 10),
						int64(1e10 - blockSize),
						strings.Repeat("\x00", blockSize-100) + strings.Repeat("0123456789", 10),
						int64(1e10 - blockSize),
						strings.Repeat("\x00", blockSize-100) + strings.Repeat("0123456789", 10),
						int64(1e10 - blockSize),
						strings.Repeat("\x00", blockSize-100) + strings.Repeat("0123456789", 10),
						int64(1e10 - blockSize),

	// Output:
	// -gopher!
	// "go-gopher!"
	// go-gopher
	// go-gopher!
}

func ExampleTrimLeft() {
	fmt.Print(string(bytes.TrimLeft([]byte("453gopher8257"), "0123456789")))
	// Output:
	// gopher8257
}

func ExampleTrimLeftFunc() {
	fmt.Println(string(bytes.TrimLeftFunc([]byte("go-gopher"), unicode.IsLetter)))

		{"032033\x00 ", 032033, true},
		{"320330\x00 ", 0320330, true},
		{"0000660\x00 ", 0660, true},
		{"\x00 0000660\x00 ", 0660, true},
		{"0123456789abcdef", 0, false},
		{"0123456789\x00abcdef", 0, false},
		{"01234567\x0089abcdef", 342391, true},
		{"0123\x7e\x5f\x264123", 0, false},
	}

	for _, v := range vectors {
		var p parser
		got := p.parseNumeric([]byte(v.in))
		ok := (p.err == nil)

			Format: FormatPAX,
		}},
	}, {
		file: "testdata/trailing-slash.tar",
		headers: []*Header{{
			Typeflag: TypeDir,
			Name:     strings.Repeat("123456789/", 30),
			ModTime:  time.Unix(0, 0),
			PAXRecords: map[string]string{
				"path": strings.Repeat("123456789/", 30),
			},
			Format: FormatPAX,
		}},
	}}

	for _, v := range vectors {
		t.Run(path.Base(v.file), func(t *testing.T) {

	PSTB R1, $1, 12345678(R2)               // 061000bc9822614e
	PSTD R1, $1, 12345678(R2)               // 041000bcf422614e
	PSTFD F1, $1, 12345678(R2)              // 061000bcd822614e
	PSTFS F1, $1, 123456789(R7)             // 0610075bd027cd15
	PSTH R1, $1, 12345678(R2)               // 061000bcb022614e
	PSTQ R2, $1, 12345678(R2)               // 041000bcf042614e
	PSTW R1, $1, 12345678(R2)               // 061000bc9022614e

	// 3.2.1: Environment Call and Breakpoint
	ECALL						// 73000000
	SCALL						// 73000000
	EBREAK						// 73001000
	SBREAK						// 73001000

	// Arbitrary bytes (entered in little-endian mode)
	WORD	$0x12345678	// WORD $305419896	// 78563412
	WORD	$0x9abcdef0	// WORD $2596069104	// f0debc9a

	// MOV pseudo-instructions
	MOV	X5, X6					// 13830200
	MOV	$2047, X5				// 9302f07f
	MOV	$-2048, X5				// 93020080