_ = x[OpLiteral-3]
	_ = x[OpCharClass-4]
	_ = x[OpAnyCharNotNL-5]
	_ = x[OpAnyChar-6]
	_ = x[OpBeginLine-7]
	_ = x[OpEndLine-8]
	_ = x[OpBeginText-9]
	_ = x[OpEndText-10]
	_ = x[OpWordBoundary-11]
	_ = x[OpNoWordBoundary-12]
	_ = x[OpCapture-13]
	_ = x[OpStar-14]
	_ = x[OpPlus-15]
	_ = x[OpQuest-16]
	_ = x[OpRepeat-17]
	_ = x[OpConcat-18]
	_ = x[OpAlternate-19]
	_ = x[opPseudo-128]
}

const (

	OpBeginText                    // matches empty string at beginning of text
	OpEndText                      // matches empty string at end of text
	OpWordBoundary                 // matches word boundary `\b`
	OpNoWordBoundary               // matches word non-boundary `\B`
	OpCapture                      // capturing subexpression with index Cap, optional name Name
	OpStar                         // matches Sub[0] zero or more times

		return c.empty(EmptyEndLine)
	case OpBeginText:
		return c.empty(EmptyBeginText)
	case OpEndText:
		return c.empty(EmptyEndText)
	case OpWordBoundary:
		return c.empty(EmptyWordBoundary)
	case OpNoWordBoundary:
		return c.empty(EmptyNoWordBoundary)
	case OpCapture:
		bra := c.cap(uint32(re.Cap << 1))
		sub := c.compile(re.Sub[0])
		ket := c.cap(uint32(re.Cap<<1 | 1))
		return c.cat(c.cat(bra, sub), ket)

	OpAnyCharNotNL:   "dnl",
	OpAnyChar:        "dot",
	OpBeginLine:      "bol",
	OpEndLine:        "eol",
	OpBeginText:      "bot",
	OpEndText:        "eot",
	OpWordBoundary:   "wb",
	OpNoWordBoundary: "nwb",
	OpCapture:        "cap",
	OpStar:           "star",
	OpPlus:           "plus",
	OpQuest:          "que",
	OpRepeat:         "rep",
	OpConcat:         "cat",
	OpAlternate:      "alt",
}

				case 'A':
					p.op(OpBeginText)
					t = t[2:]
					break BigSwitch
				case 'b':
					p.op(OpWordBoundary)
					t = t[2:]
					break BigSwitch
				case 'B':
					p.op(OpNoWordBoundary)
					t = t[2:]
					break BigSwitch
				case 'C':
					// any byte; not supported
					return nil, &Error{ErrInvalidEscape, t[:2]}
				case 'Q':
					// \Q ... \E: the ... is always literals

		{"OpCharClass", Const, 0},
		{"OpConcat", Const, 0},
		{"OpEmptyMatch", Const, 0},
		{"OpEndLine", Const, 0},
		{"OpEndText", Const, 0},
		{"OpLiteral", Const, 0},
		{"OpNoMatch", Const, 0},
		{"OpNoWordBoundary", Const, 0},
		{"OpPlus", Const, 0},
		{"OpQuest", Const, 0},
		{"OpRepeat", Const, 0},
		{"OpStar", Const, 0},
		{"OpWordBoundary", Const, 0},
		{"POSIX", Const, 0},
		{"Parse", Func, 0},

pkg regexp/syntax, const OpEndLine Op
pkg regexp/syntax, const OpEndText Op
pkg regexp/syntax, const OpLiteral Op
pkg regexp/syntax, const OpNoMatch Op
pkg regexp/syntax, const OpNoWordBoundary Op
pkg regexp/syntax, const OpPlus Op
pkg regexp/syntax, const OpQuest Op
pkg regexp/syntax, const OpRepeat Op
pkg regexp/syntax, const OpStar Op
pkg regexp/syntax, const OpWordBoundary Op

pkg regexp/syntax, const OpEndLine = 8
pkg regexp/syntax, const OpEndText = 10
pkg regexp/syntax, const OpLiteral = 3
pkg regexp/syntax, const OpNoMatch = 1
pkg regexp/syntax, const OpNoWordBoundary = 12
pkg regexp/syntax, const OpPlus = 15
pkg regexp/syntax, const OpQuest = 16
pkg regexp/syntax, const OpRepeat = 17
pkg regexp/syntax, const OpStar = 14
pkg regexp/syntax, const OpWordBoundary = 11