return // for now
	// switch prev {
	// case lexical.Int:
	// 	b = next == '.' // 1.
	// case lexical.Add:
	// 	b = next == '+' // ++
	// case lexical.Sub:
	// 	b = next == '-' // --
	// case lexical.Quo:
	// 	b = next == '*' // /*
	// case lexical.Lss:
	// 	b = next == '-' || next == '<' // <- or <<
	// case lexical.And:
	// 	b = next == '&' || next == '^' // && or &^
	// }

		refull    *Regexp
		nfail     int
		ncase     int
	)
	for lineno := 1; scanner.Scan(); lineno++ {
		line := scanner.Text()
		switch {
		case line == "":
			t.Fatalf("%s:%d: unexpected blank line", file, lineno)
		case line[0] == '#':
			continue
		case 'A' <= line[0] && line[0] <= 'Z':
			// Test name.
			t.Logf("%s\n", line)
			continue
		case line == "strings":
			str = str[:0]

	_Rparen    // )
	_Rbrack    // ]
	_Rbrace    // }
	_Comma     // ,
	_Semi      // ;
	_Colon     // :
	_Dot       // .
	_DotDotDot // ...

	// keywords
	_Break       // break
	_Case        // case
	_Chan        // chan
	_Const       // const
	_Continue    // continue
	_Default     // default
	_Defer       // defer
	_Else        // else
	_Fallthrough // fallthrough
	_For         // for

			switch flag {
			case "on":
				p.disabled = val == 0
			case "off":
				p.disabled = val != 0
			case "time":
				p.time = val != 0
			case "mem":
				p.mem = val != 0
			case "debug":
				p.debug = val
			case "stats":
				p.stats = val
			case "test":
				p.test = val
			case "dump":
				p.addDump(valString)
			default:

				*t = c;
				break;
			case '0': case '1': case '2': case '3':
			case '4': case '5': case '6': case '7':
				c = *s - '0';
				q = s + 2;
				while (s < q)
				{
					switch (*++s)
					{
					case '0': case '1': case '2': case '3':
					case '4': case '5': case '6': case '7':
						c = (c << 3) + *s - '0';
						break;
					default:
						q = --s;
						break;
					}
				}
				*t = c;

		return 15
	case 16:
		return 16
	case 17:
		return 17
	case 18:
		return 18
	case 19:
		return 19
	case 20:
		return 20
	case 21:
		return 21
	case 22:
		return 22
	case 23:
		return 23
	case 24:
		return 24
	case 25:
		return 25
	case 26:
		return 26
	case 27:
		return 27
	case 28:
		return 28
	case 29:
		return 29
	case 30:
		return 30
	case 31:
		return 31

			},
		},
	}

	for _, tcase := range tcases {
		topology, err := NewNUMAInfo(tcase.topology, tcase.opts)
		if tcase.expectedErr == nil && err != nil {
			t.Fatalf("Expected err to equal nil, not %v", err)
		} else if tcase.expectedErr != nil && err == nil {
			t.Fatalf("Expected err to equal %v, not nil", tcase.expectedErr)
		} else if tcase.expectedErr != nil {

	case ObjectAccessedHead:
		return "s3:ObjectAccessed:Head"
	case ObjectAccessedAttributes:
		return "s3:ObjectAccessed:Attributes"
	case ObjectCreatedAll:
		return "s3:ObjectCreated:*"
	case ObjectCreatedCompleteMultipartUpload:
		return "s3:ObjectCreated:CompleteMultipartUpload"
	case ObjectCreatedCopy:
		return "s3:ObjectCreated:Copy"
	case ObjectCreatedPost:
		return "s3:ObjectCreated:Post"
	case ObjectCreatedPut:

	case C_S16CON:
		return cmp(C_U15CON, b)
	case C_U16CON:
		return cmp(C_U15CON, b)
	case C_16CON:
		return cmp(C_S16CON, b) || cmp(C_U16CON, b)
	case C_U31CON:
		return cmp(C_U16CON, b)
	case C_U32CON:
		return cmp(C_U31CON, b)
	case C_S32CON:
		return cmp(C_U31CON, b) || cmp(C_S16CON, b)
	case C_32CON:
		return cmp(C_S32CON, b) || cmp(C_U32CON, b)
	case C_S34CON:

	)
	// Send cases.
	select {
	case ccr <- cr:
	case ccr <- c:
	}
	select {
	case ccs <- cs:
	case ccs <- c:
	}
	select {
	case ccr <- c:
	default:
	}
	// Receive cases.
	select {
	case cr = <-cc:
	case cs = <-cc:
	case c = <-cc:
	}
	select {
	case cr = <-cc:
	default:
	}
	select {
	case cr, ok = <-cc:
	case cs, ok = <-cc:
	case c = <-cc:
	}
      // Interfaces.