{`(?i:ab*c|d?e)1`, `(?i:(?:AB*C|D?E)1)`},
	{`(?i:ab*cd?e)1`, `(?i:AB*CD?E1)`},
	{`(?i:ab)[123](?i:cd)`, `(?i:AB[1-3]CD)`},
	{`(?i:ab*c|d?e)`, `(?i:AB*C|D?E)`},
	{`[Aa][Bb]`, `(?i:AB)`},
	{`[Aa][Bb]*[Cc]`, `(?i:AB*C)`},
	{`A(?:[Bb][Cc]|[Dd])[Zz]`, `A(?i:(?:BC|D)Z)`},
	{`[Aa](?:[Bb][Cc]|[Dd])Z`, `(?i:A(?:BC|D))Z`},
}

func TestString(t *testing.T) {
	for _, tt := range stringTests {
		re, err := Parse(tt.re, Perl)

				i, o, l, testCase.expOffset, testCase.expLength)
		}
	}

	unparsableRangeSpecs := []string{
		"bytes=-",
		"bytes==",
		"bytes==1-10",
		"bytes=",
		"bytes=aa",
		"aa",
		"",
		"bytes=1-10-",
		"bytes=1--10",
		"bytes=-1-10",
		"bytes=0-+3",
		"bytes=+3-+5",
		"bytes=10-11,12-10", // Unsupported by S3/MinIO (valid in RFC)
	}
	for i, urs := range unparsableRangeSpecs {

000000f0  8b a9 bd c6 58 1a 3b bd  5e fb 0f 46 ec fc 8b 2c  |....X.;.^..F...,|
00000100  ea a7 19 06 6a e5 6f 10  7a 27 04 6b aa a4 2c f4  |....j.o.z'.k..,.|
00000110  ef 3b e8 8a 51 88 fd e0  ae 33 b1 4c b3 04 5e 91  |.;..Q....3.L..^.|
00000120  b0 98 0b 9f 38 a3 3c fb  9f d5 d2 36 e4 09 19 18  |....8.<....6....|
00000130  a5 b3 12 aa c9 03 ac b5  ab bb f1 7a 02 d2 dd 75  |...........z...u|

00000040  00 00 00 00 00 00 00 00  00 00 00 00 13 03 00 00  |................|
00000050  4f 00 2b 00 02 03 04 00  33 00 45 00 17 00 41 04  |O.+.....3.E...A.|
00000060  f0 2e aa 75 ea 32 f4 3c  ea b7 61 13 0f 22 8d 39  |...u.2.<..a..".9|
00000070  9e 0a 53 c8 d6 92 ea 5e  87 5b 46 d3 71 2d d1 df  |..S....^.[F.q-..|
00000080  fa 1e 9a 6a 0e b2 bc d7  91 6e 26 56 17 24 11 d8  |...j.....n&V.$..|

00000270  00 bc cf 9c 7d b7 40 20  01 5f aa d3 16 61 09 a2  |....}.@ ._...a..|
00000280  76 fd 13 c3 cc e1 0c 5c  ee b1 87 82 f1 6c 04 ed  |v......\.....l..|
00000290  73 bb b3 43 77 8d 0c 1c  f1 0f a1 d8 40 83 61 c9  |s..Cw.......@.a.|
000002a0  4c 72 2b 9d ae db 46 06  06 4d f4 c1 b3 3e c0 d1  |Lr+...F..M...>..|
000002b0  bd 42 d4 db fe 3d 13 60  84 5c 21 d3 3b e9 fa e7  |.B...=.`.\!.;...|

00000160  60 13 b9 6c 6d fb f3 be  e3 04 74 76 72 d6 a4 91  |`..lm.....tvr...|
00000170  d1 2c 0d 1e fa 23 ef c7  80 ff 1e aa 1b af 50 58  |.,...#........PX|
00000180  77 ea 49 d9 22 4d ed bc  bf a6 0a 41 8e e7 5b 31  |w.I."M.....A..[1|
00000190  de 33 05 10 46 a5 54 aa  5e 90 5c 15 64 2d 1b e9  |.3..F.T.^.\.d-..|
000001a0  5c fc 93 8d 2f b2 af 74  d7 d2 c6 7f 27 68 fd 44  |\.../..t....'h.D|

00000010  73 82 d1 cf 84 ad 06 e9  76 39 dc e4 c8 34 af 53  |s.......v9...4.S|
00000020  06 ed ed 68 56 5f 76 11  4e f6 ff 20 55 fd 29 c5  |...hV_v.N.. U.).|
00000030  aa 56 af bd 5d 67 74 4f  08 8a 52 a1 7e cd b9 ac  |.V..]gtO..R.~...|
00000040  31 a0 2f 45 25 1f b2 24  71 26 80 17 c0 09 00 00  |1./E%..$q&......|
00000050  11 ff 01 00 01 00 00 0b  00 04 03 00 01 02 00 17  |................|

00000150  93 e5 96 d9 74 7b f3 58  9f 6c 61 3c c0 b0 41 d4  |....t{.X.la<..A.|
00000160  d9 2b 2b 24 23 77 5b 1c  3b bd 75 5d ce 20 54 cf  |.++$#w[.;.u]. T.|
00000170  a1 63 87 1d 1e 24 c4 f3  1d 1a 50 8b aa b6 14 43  |.c...$....P....C|
00000180  ed 97 a7 75 62 f4 14 c8  52 d7 02 03 01 00 01 a3  |...ub...R.......|
00000190  81 93 30 81 90 30 0e 06  03 55 1d 0f 01 01 ff 04  |..0..0...U......|

var nilptr uintptr = uintptr(unsafe.Pointer(nil))

var tests = []struct {
	x, y    any
	compare int
}{
	{1, 2, -1},
	{1, 1, 0},
	{2, 1, +1},
	{"a", "aa", -1},
	{"a", "a", 0},
	{"aa", "a", +1},
	{1.0, 1.1, -1},
	{1.1, 1.1, 0},
	{1.1, 1.0, +1},
	{math.Inf(1), math.Inf(1), 0},
	{math.Inf(-1), math.Inf(-1), 0},
	{math.Inf(-1), 1.0, -1},
	{1.0, math.Inf(-1), +1},

00000150  93 e5 96 d9 74 7b f3 58  9f 6c 61 3c c0 b0 41 d4  |....t{.X.la<..A.|
00000160  d9 2b 2b 24 23 77 5b 1c  3b bd 75 5d ce 20 54 cf  |.++$#w[.;.u]. T.|
00000170  a1 63 87 1d 1e 24 c4 f3  1d 1a 50 8b aa b6 14 43  |.c...$....P....C|
00000180  ed 97 a7 75 62 f4 14 c8  52 d7 02 03 01 00 01 a3  |...ub...R.......|
00000190  81 93 30 81 90 30 0e 06  03 55 1d 0f 01 01 ff 04  |..0..0...U......|