// fixed bugs
	{`ab$`, "cab", build(1, 1, 3)},
	{`axxb$`, "axxcb", nil},
	{`data`, "daXY data", build(1, 5, 9)},
	{`da(.)a$`, "daXY data", build(1, 5, 9, 7, 8)},
	{`zx+`, "zzx", build(1, 1, 3)},
	{`ab$`, "abcab", build(1, 3, 5)},
	{`(aa)*$`, "a", build(1, 1, 1, -1, -1)},
	{`(?:.|(?:.a))`, "", nil},
	{`(?:A(?:A|a))`, "Aa", build(1, 0, 2)},
	{`(?:A|(?:A|a))`, "a", build(1, 0, 1)},