}
				b.WriteString(s[written:i])
				b.WriteString(repl)
				written = i + w
			}
		} else if badRunes {
			// No-op.
			// IE does not allow these ranges in unquoted attrs.
		} else if 0xfdd0 <= r && r <= 0xfdef || 0xfff0 <= r && r <= 0xffff {
			if written == 0 {
				b.Grow(len(s))
			}
			fmt.Fprintf(b, "%s&#x%x;", s[written:i], r)
			written = i + w
		}
	}
	if written == 0 {
		return s
	}

		{0xd7cb, 0xd7fb, 1},
		{0xf900, 0xfa6d, 1},
		{0xfa70, 0xfad9, 1},
		{0xfb1d, 0xfb1f, 2},
		{0xfb20, 0xfb28, 1},
		{0xfb2a, 0xfb36, 1},
		{0xfb38, 0xfb3c, 1},
		{0xfb3e, 0xfb40, 2},
		{0xfb41, 0xfb43, 2},
		{0xfb44, 0xfb46, 2},
		{0xfb47, 0xfbb1, 1},
		{0xfbd3, 0xfd3d, 1},
		{0xfd50, 0xfd8f, 1},
		{0xfd92, 0xfdc7, 1},
		{0xfdf0, 0xfdfb, 1},
		{0xfe70, 0xfe74, 1},

	0xac00, 0xd7a3,
	0xd7b0, 0xd7c6,
	0xd7cb, 0xd7fb,
	0xf900, 0xfa6d,
	0xfa70, 0xfad9,
	0xfb00, 0xfb06,
	0xfb13, 0xfb17,
	0xfb1d, 0xfbc2,
	0xfbd3, 0xfd8f,
	0xfd92, 0xfdc7,
	0xfdcf, 0xfdcf,
	0xfdf0, 0xfe19,
	0xfe20, 0xfe6b,
	0xfe70, 0xfefc,
	0xff01, 0xffbe,
	0xffc2, 0xffc7,
	0xffca, 0xffcf,
	0xffd2, 0xffd7,
	0xffda, 0xffdc,
	0xffe0, 0xffee,
	0xfffc, 0xfffd,
}

	binary.LittleEndian.PutUint16(b[2:], 0x07d0)
	fmt.Printf("% x\n", b)
	// Output:
	// e8 03 d0 07
}

func ExampleByteOrder_get() {
	b := []byte{0xe8, 0x03, 0xd0, 0x07}
	x1 := binary.LittleEndian.Uint16(b[0:])
	x2 := binary.LittleEndian.Uint16(b[2:])
	fmt.Printf("%#04x %#04x\n", x1, x2)
	// Output:
	// 0x03e8 0x07d0
}

func ExamplePutUvarint() {

	0xFF19,
	0x104A1,
	0x1D7CE,
}

var testLetter = []rune{
	0x0041,
	0x0061,
	0x00AA,
	0x00BA,
	0x00C8,
	0x00DB,
	0x00F9,
	0x02EC,
	0x0535,
	0x06E6,
	0x093D,
	0x0A15,
	0x0B99,
	0x0DC0,
	0x0EDD,
	0x1000,
	0x1200,
	0x1312,
	0x1401,
	0x1885,
	0x2C00,
	0xA800,
	0xF900,
	0xFA30,
	0xFFDA,
	0xFFDC,
	0x10000,
	0x10300,
	0x10400,
	0x20000,
	0x2F800,

	// XOR.
	if msbSet {
		double.low ^= 0xe100000000000000
	}

	return
}

var gcmReductionTable = []uint16{
	0x0000, 0x1c20, 0x3840, 0x2460, 0x7080, 0x6ca0, 0x48c0, 0x54e0,
	0xe100, 0xfd20, 0xd940, 0xc560, 0x9180, 0x8da0, 0xa9c0, 0xb5e0,
}

// mul sets y to y*H, where H is the GCM key, fixed during NewGCMWithNonceSize.
func (g *gcm) mul(y *gcmFieldElement) {
	var z gcmFieldElement

	for i := 0; i < 2; i++ {

	0x44, 0xF0, 0xA1, 0xAC, 0x98, 0x44, 0xF0, 0xA1,
	0xB4, 0x8B, 0x44, 0xF0, 0xA1, 0xB7, 0xA4, 0x44,
	0xF0, 0xA1, 0xB7, 0xA6, 0x44, 0xF0, 0xA2, 0x86,
	0x83, 0x44, 0xF0, 0xA2, 0x86, 0x9F, 0x44, 0xF0,
	0xA2, 0x8C, 0xB1, 0x44, 0xF0, 0xA2, 0x9B, 0x94,
	0x44, 0xF0, 0xA2, 0xA1, 0x84, 0x44, 0xF0, 0xA2,
	0xA1, 0x8A, 0x44, 0xF0, 0xA2, 0xAC, 0x8C, 0x44,
	// Bytes 16c0 - 16ff
	0xF0, 0xA2, 0xAF, 0xB1, 0x44, 0xF0, 0xA3, 0x80,

	// Block 0xd, offset 0x340
	0x340: 0xfd, 0x341: 0xfd, 0x342: 0xfd, 0x343: 0xfd, 0x344: 0xfd, 0x345: 0xfd, 0x346: 0xfd, 0x347: 0xfd,
	0x348: 0xfd, 0x349: 0xfd, 0x34a: 0xfd, 0x34b: 0xfd, 0x34c: 0xfd, 0x34d: 0xfd, 0x34e: 0xfd, 0x34f: 0xfd,
	0x350: 0xfd, 0x351: 0xfd, 0x352: 0xfd, 0x353: 0xfd, 0x354: 0xfd, 0x355: 0xfd, 0x356: 0xfd, 0x357: 0xfd,
	0x358: 0xfd, 0x359: 0xfd, 0x35a: 0xfd, 0x35b: 0xfd, 0x35c: 0xfd, 0x35d: 0xfd, 0x35e: 0xfd, 0x35f: 0xfd,

	0xfd8: 0x39f5, 0xfd9: 0x3a15, 0xfda: 0x3a35, 0xfdb: 0x3a55, 0xfdc: 0x3a75, 0xfdd: 0x3a95,
	0xfde: 0x3ab5, 0xfdf: 0x3ad5, 0xfe0: 0x3af5, 0xfe1: 0x3b15, 0xfe2: 0x3b35, 0xfe3: 0x3b55,
	0xfe4: 0x3b75, 0xfe5: 0x3b95, 0xfe6: 0x1295, 0xfe7: 0x3bb5, 0xfe8: 0x3bd5, 0xfe9: 0x3bf5,
	0xfea: 0x3c15, 0xfeb: 0x3c35, 0xfec: 0x3c55, 0xfed: 0x3c75, 0xfee: 0x23b5, 0xfef: 0x3c95,

	0x44, 0xF0, 0xA1, 0xAC, 0x98, 0x44, 0xF0, 0xA1,
	0xB4, 0x8B, 0x44, 0xF0, 0xA1, 0xB7, 0xA4, 0x44,
	0xF0, 0xA1, 0xB7, 0xA6, 0x44, 0xF0, 0xA2, 0x86,
	0x83, 0x44, 0xF0, 0xA2, 0x86, 0x9F, 0x44, 0xF0,
	0xA2, 0x8C, 0xB1, 0x44, 0xF0, 0xA2, 0x9B, 0x94,
	0x44, 0xF0, 0xA2, 0xA1, 0x84, 0x44, 0xF0, 0xA2,
	0xA1, 0x8A, 0x44, 0xF0, 0xA2, 0xAC, 0x8C, 0x44,
	// Bytes 16c0 - 16ff
	0xF0, 0xA2, 0xAF, 0xB1, 0x44, 0xF0, 0xA3, 0x80,