0x21, 0x2b, 0xdc, 0x06, 0x25, 0xce, 0x5e, 0xe0, 0xec, 0xd7, 0x72, 0xd9, 0xc5, 0xa0, 0x9b, 0x08,
	0x7f, 0xf0, 0xe6, 0x03, 0x4a, 0x2c, 0xe6, 0x5e, 0xfb, 0x8c, 0xa0, 0x2e, 0xad, 0x63, 0x8a, 0x11,
	0x27, 0x82, 0x2f, 0x82, 0x8a, 0x2b, 0xdc, 0xaf, 0x15, 0x2f, 0x2a, 0xab, 0xc5, 0xf6, 0x59, 0x81,
	0xaa, 0x04, 0xc3, 0x42, 0x21, 0x42, 0xfd, 0xb3, 0x02, 0x96, 0xb3, 0xe3, 0xde, 0xd0, 0x3d, 0x0a,

	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x9c, 0x55, 0x41, 0x4f, 0x13, 0x41,
	0x14, 0xee, 0xd2, 0x52, 0x60, 0xaa, 0xad, 0x8c, 0x10, 0x6a, 0x4d, 0xb6, 0xd8, 0x04, 0x83, 0x1a,
	0x77, 0xa5, 0x11, 0x23, 0x9a, 0x68, 0x58, 0x20, 0x06, 0x85, 0x60, 0xa6, 0xc4, 0x03, 0x7a, 0x70,
	0xba, 0x1d, 0xb7, 0x2b, 0xdd, 0x9d, 0xcd, 0xce, 0xb4, 0x09, 0x17, 0xe3, 0x4f, 0xd0, 0xff, 0xe1,

	0x27, 0xe4, 0xb1, 0xf3, 0xe2, 0xbc, 0xd0, 0xb4, 0x07, 0x6e, 0x9e, 0x67, 0x9e, 0xff, 0xef, 0x99,
	0xe7, 0x65, 0x26, 0x41, 0x9f, 0x0c, 0x4f, 0x24, 0xe1, 0xc2, 0x62, 0x11, 0xb7, 0x22, 0xe1, 0x73,
	0x67, 0x6c, 0x8d, 0x8e, 0xfb, 0xa0, 0xd8, 0xb1, 0xe5, 0x41, 0x08, 0x31, 0x53, 0xe0, 0x92, 0x28,
	0x16, 0x4a, 0xe0, 0xa3, 0xdc, 0x95, 0xb0, 0x88, 0x93, 0xdc, 0x95, 0x14, 0xae, 0xad, 0xcf, 0x3c,

	128, 0, 0, // headerFields, bg, aspect (10)
	0, 0, 0, 1, 1, 1, // color table and graphics control (13)
	0x21, 0xf9, 0x04, 0x00, 0x00, 0x00, 0xff, 0x00, // (19)
	// frame 1 (0,0 - 1,1)
	0x2c,
	0x00, 0x00, 0x00, 0x00,
	0x01, 0x00, 0x01, 0x00, // (32)
	0x00,
	0x02, 0x02, 0x4c, 0x01, 0x00, // lzw pixels
	// trailer
	0x3b,
}

func try(t *testing.T, b []byte, want string) {

	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xa4, 0x56, 0x4d, 0x6f, 0x1b, 0x45,
	0x18, 0xf6, 0xc6, 0x1f, 0xb1, 0xc7, 0x21, 0x6d, 0x47, 0x50, 0x2d, 0x96, 0xea, 0xb5, 0x56, 0x80,
	0xc2, 0xd7, 0x2c, 0xa9, 0x2a, 0x88, 0x72, 0x40, 0xb0, 0x21, 0x42, 0x11, 0x29, 0x48, 0x93, 0x84,
	0x03, 0x42, 0xa2, 0x93, 0xf5, 0xdb, 0xcd, 0x34, 0xdd, 0x0f, 0x76, 0x66, 0x4d, 0x7d, 0xeb, 0x4f,

	SYNCHRONIZE               = 0x00100000

	PAGE_READONLY          = 0x02
	PAGE_READWRITE         = 0x04
	PAGE_WRITECOPY         = 0x08
	PAGE_EXECUTE_READ      = 0x20
	PAGE_EXECUTE_READWRITE = 0x40
	PAGE_EXECUTE_WRITECOPY = 0x80

	FILE_MAP_COPY    = 0x01
	FILE_MAP_WRITE   = 0x02
	FILE_MAP_READ    = 0x04
	FILE_MAP_EXECUTE = 0x20

	CTRL_C_EVENT        = 0
	CTRL_BREAK_EVENT    = 1

// influenced by normalization.
type qcInfo uint8

func (p Properties) isYesC() bool { return p.flags&0x10 == 0 }
func (p Properties) isYesD() bool { return p.flags&0x4 == 0 }

func (p Properties) combinesForward() bool  { return p.flags&0x20 != 0 }
func (p Properties) combinesBackward() bool { return p.flags&0x8 != 0 } // == isMaybe

	0x40, 0x1f, 0x4c, 0xb1, 0x00, 0x07, 0x1d, 0x26, 0x53, 0xeb, 0xde, 0xa9, 0xb0, 0x09, 0x44, 0x63,
	0x5e, 0xf2, 0x4d, 0x85, 0x6b, 0x24, 0x99, 0xb4, 0x3f, 0x14, 0xb0, 0x3c, 0xd4, 0xd6, 0xa0, 0x8e,
	0xc5, 0xf3, 0xe1, 0xdf, 0x0f, 0xf3, 0x27, 0x99, 0x30, 0x6f, 0x9d, 0x86, 0xe3, 0xf2, 0xf0, 0xc3,
	0xa2, 0xad, 0xfd, 0xae, 0x80, 0x8b, 0x27, 0x19, 0x3f, 0xa0, 0x2c, 0x80, 0x1f, 0xf6, 0x79, 0xaf,

	0x25, 0x50, 0x95, 0x89, 0x11, 0xf2, 0x36, 0x00, 0x52, 0x7a, 0x8a, 0xb8, 0xb8, 0x0d, 0x80, 0xaa,
	0x0c, 0x06, 0x54, 0x6e, 0x41, 0x20, 0xc0, 0x8e, 0x15, 0xcf, 0x79, 0x47, 0xd8, 0x40, 0x96, 0x55,
	0x61, 0x95, 0x49, 0x85, 0x25, 0xc3, 0xa1, 0x60, 0x16, 0x49, 0xe5, 0xca, 0x8d, 0x11, 0x01, 0x3a,
	0x26, 0x89, 0xdf, 0x6a, 0x88, 0x64, 0xc1, 0xff, 0x5c, 0x11, 0xaa, 0x99, 0x0c, 0x25, 0xf3, 0x02,

	0x60, 0xcb, 0x33, 0x90, 0xcc, 0xc2, 0xf7, 0xbd, 0x4a, 0x2e, 0xea, 0x55, 0x50, 0x16, 0xa3, 0x03,
	0x2a, 0xbe, 0x42, 0x45, 0x75, 0xdf, 0x97, 0xae, 0x07, 0x64, 0x4e, 0x95, 0x30, 0x67, 0x2b, 0x71,
	0xe6, 0xda, 0x82, 0xc7, 0x36, 0x6b, 0x3d, 0xad, 0x50, 0x3c, 0xea, 0x93, 0x68, 0x06, 0xc5, 0x27,
	0xa8, 0x10, 0x82, 0x70, 0x21, 0x24, 0xf3, 0x0a, 0xbf, 0x6b, 0x4c, 0xfd, 0xd6, 0x86, 0x02, 0x5c,