Exemplo n.º 1
0
func lexChar(l *Lexer) stateFn {
Loop:
	for {
		switch l.next() {
		case '"':
			fmt.Println(string(l.input[l.pos-2]))
			if l.input[l.pos-2] != '\\' {
				return l.errorf("unescaped char %s", string(l.input[l.pos-1]))
			}
		case '\\':
			if ok := runeIsEscape(l.peek()); !ok {
				return l.errorf("Not an escape character %s", strconv.QuoteRuneToASCII(l.next()))
			} else {
				l.next()
				break
			}
			fallthrough
		case eof, '\n':
			return l.errorf("unterminated character constant")
		case '\'':
			break Loop
		}
	}
	l.emit(CHARACTER)
	return lexInsideProgram
}
Exemplo n.º 2
0
func ExampleQuoteRuneToASCII() {
	s := strconv.QuoteRuneToASCII('☺')
	fmt.Println(s)

	// Output:
	// '\u263a'
}
Exemplo n.º 3
0
Arquivo: utils.go Projeto: wwek/ncgo
// Create normalized array of rows from mixed data (interface{})
func createFromMixed(data [][]interface{}, format byte) []*TabulateRow {
	rows := make([]*TabulateRow, len(data))
	for index_1, element := range data {
		normalized := make([]string, len(element))
		for index, el := range element {
			switch el.(type) {
			case int32:
				quoted := strconv.QuoteRuneToASCII(el.(int32))
				normalized[index] = quoted[1 : len(quoted)-1]
			case int:
				normalized[index] = strconv.Itoa(el.(int))
			case int64:
				normalized[index] = strconv.FormatInt(el.(int64), 10)
			case bool:
				normalized[index] = strconv.FormatBool(el.(bool))
			case float64:
				normalized[index] = strconv.FormatFloat(el.(float64), format, -1, 64)
			case uint64:
				normalized[index] = strconv.FormatUint(el.(uint64), 10)
			case nil:
				normalized[index] = "nil"
			default:
				normalized[index] = fmt.Sprintf("%s", el)
			}
		}
		rows[index_1] = &TabulateRow{Elements: normalized}
	}
	return rows
}
Exemplo n.º 4
0
func main() {
	file, err := os.Open(os.Args[1])
	if err != nil {
		log.Fatal(err)
	}
	defer file.Close()

	scanner := bufio.NewScanner(file)
	scanner.Scan() //scan line number line
	ln, err := strconv.Atoi(scanner.Text())
	if err != nil {
		log.Fatal(err)
	}

	var s string
	for i := 1; i <= ln; i++ {
		scanner.Scan()
		tmp := scanner.Text()
		tmp = strings.ToLower(tmp)
		for _, r := range tmp {
			//rc := strconv.QuoteRuneToASCII(r)
			if r >= 'a' && r <= 'z' {
				s += strconv.QuoteRuneToASCII(r)
			}
		}
	}

	if s == reverse(s) {
		fmt.Println("Palindrome")
	} else {
		fmt.Println("Not a Palindrome")
	}
}
Exemplo n.º 5
0
// fmt_qc formats the integer as a single-quoted, escaped Go character constant.
// If the character is not valid Unicode, it will print '\ufffd'.
func (f *fmt) fmt_qc(c int64) {
	var quoted string
	if f.plus {
		quoted = strconv.QuoteRuneToASCII(int(c))
	} else {
		quoted = strconv.QuoteRune(int(c))
	}
	f.padString(quoted)
}
Exemplo n.º 6
0
// Print a byte as ASCII, using escape sequences where necessary.
func printAsciiByte(b uint8) {
	r := rune(b)
	if unicode.IsPrint(r) || unicode.IsSpace(r) {
		fmt.Print(string(r))
	} else {
		charStr := strconv.QuoteRuneToASCII(r)
		fmt.Print(charStr[1 : len(charStr)-1])
	}
}
Exemplo n.º 7
0
func (z *ConstNumber) StringShow0i(show0i bool) string {
	if z.Type == ConstRune && z.Value.Re.Num().BitLen() <= 32 {
		r, _, _ := z.Value.Int(32)
		return strconv.QuoteRuneToASCII(rune(r))
	} else if z.Type == ConstComplex {
		return z.Value.StringShow0i(show0i)
	} else {
		return z.Value.StringShow0i(false)
	}
}
Exemplo n.º 8
0
Arquivo: utils.go Projeto: wwek/ncgo
// Create normalized array from ints32
func createFromInt32(data [][]int32) []*TabulateRow {
	rows := make([]*TabulateRow, len(data))
	for index_1, arr := range data {
		row := make([]string, len(arr))
		for index, el := range arr {
			quoted := strconv.QuoteRuneToASCII(el)
			row[index] = quoted[1 : len(quoted)-1]
		}
		rows[index_1] = &TabulateRow{Elements: row}
	}
	return rows
}
Exemplo n.º 9
0
func (filter *ScenarioFilterBasedOnTags) getOperatorsAndOperands() ([]string, []string) {
	listOfOperators := make([]string, 0)
	listOfTags := strings.FieldsFunc(filter.tagExpression, func(r rune) bool {
		isValidOperator := r == '&' || r == '|' || r == '(' || r == ')' || r == '!'
		if isValidOperator {
			operator, _ := strconv.Unquote(strconv.QuoteRuneToASCII(r))
			listOfOperators = append(listOfOperators, operator)
			return isValidOperator
		}
		return false
	})
	return listOfOperators, listOfTags
}
Exemplo n.º 10
0
Arquivo: talon.go Projeto: wmak/Talon
func Decode(code string) (lat, lon float64) {
	var _decode = func(character []rune) float64 {
		var loc float64
		first := strconv.QuoteRuneToASCII(character[0])
		second := strconv.QuoteRuneToASCII(character[1])
		val, _ := strconv.ParseInt("0x"+first[3:7]+second[3:7], 0, 32)
		sval := strconv.FormatInt(val, 10)
		loc = 1
		if val < 2000000000 {
			loc = -1
		}
		if val > 1000000000 {
			val, _ = strconv.ParseInt(sval[2:], 0, 0)
		}
		fval := math.Mod(float64(val), 1000000000)
		if sval[1] == 1 || sval[1] == 3 {
			fval += 90
		}
		return fval / 10000000 * loc
	}
	return _decode([]rune(code)[:2]), _decode([]rune(code)[2:])
}
Exemplo n.º 11
0
func (w *Worker) NextKey(f rune) uint64 {
	if !w.PreAllocated {
		w.next++
		x := uint64(w.next<<16) | uint64(w.ID)<<8 | uint64(w.next%CHUNKS)
		return x
	}
	if w.LastKey[f] == w.CurrKey[f] {
		log.Fatalf("%v Ran out of preallocated keys for %v; %v %v", w.ID, strconv.QuoteRuneToASCII(f), w.CurrKey[f], w.LastKey[f])
	}
	y := uint64(w.CurrKey[f] + w.start)
	x := uint64(y<<16) | uint64(w.ID)<<8 | y%CHUNKS
	w.CurrKey[f]++
	return x
}
Exemplo n.º 12
0
func getCenter(w string) string {
	result := ""
	for idx, letter := range w {
		sideA, sideB := w[:idx], w[(idx+1):]
		sumA, sumB := sumSides(sideA, sideB)
		if sumA-sumB == 0 {
			result = fmt.Sprint(sideA, " ", strconv.QuoteRuneToASCII(letter), " ", sideB, " - ", sumA)
			break
		}
	}
	if result == "" {
		result = fmt.Sprint(w, " DOES NOT BALANCE")
	}

	return result
}
Exemplo n.º 13
0
// http://play.golang.org/p/pKPEeNWsjD
// 用来escape 特殊字符  "Hello, '世界'" => E'Hello, \'\u4e16\u754c\''
func HexBuffer1(input string) string {
	output := make([]byte, 0, 3+len(input))
	output = append(output, "E'"...)
	for _, r := range input {
		var s string
		switch r {
		case '\'':
			s = `\'`
		case '\\':
			s = `\\`
		default:
			s = strconv.QuoteRuneToASCII(r)
			// get rid of surrounding single quote
			s = s[1 : len(s)-1]
		}
		output = append(output, s...)
	}
	return string(append(output, '\''))
}
Exemplo n.º 14
0
func Solution(expression string) int {
	// write your code in Go 1.4
	stack := Stack{}
	fmt.Println(expression)
	for _, element := range expression {
		value, err := strconv.Atoi(string(element))

		if err != nil {
			operand1, err := stack.Pop()
			if err != nil {
				return -1
			}
			operand2, err := stack.Pop()
			if err != nil {
				return -1
			}

			operation := strconv.QuoteRuneToASCII(element)
			if operation == "'+'" {
				total := operand1 + operand2
				stack.Push(total)
			} else if operation == "'*'" {
				total := operand1 * operand2
				stack.Push(total)
			} else {
				return -1
			}
		} else {
			stack.Push(value)
		}
	}

	finalValue, err := stack.Pop()
	if err != nil {
		return -1
	} else {
		return finalValue
	}
}
Exemplo n.º 15
0
func rtoa(r rune) string {
	return strconv.QuoteRuneToASCII(r)
}
Exemplo n.º 16
0
Arquivo: keys.go Projeto: ngaut/ddtxn
func (k Key) String() string {
	x, y := UndoCKey(k)
	return fmt.Sprintf("[%v%v]", strconv.QuoteRuneToASCII(y), x)
}
Exemplo n.º 17
0
// tokenize takes an expression and returns corresponding tokens.
func (lexer *Lexer) tokenize(expression string) ([]token, error) {
	var tokens []token
	lexer.expression = expression
	lexer.currentPos = 0
	lexer.lastWidth = 0
loop:
	for {
		r := lexer.next()
		if identifierStartBits&(1<<(uint64(r)-64)) > 0 {
			t := lexer.consumeUnquotedIdentifier()
			tokens = append(tokens, t)
		} else if val, ok := basicTokens[r]; ok {
			// Basic single char token.
			t := token{
				tokenType: val,
				value:     string(r),
				position:  lexer.currentPos - lexer.lastWidth,
				length:    1,
			}
			tokens = append(tokens, t)
		} else if r == '-' || (r >= '0' && r <= '9') {
			t := lexer.consumeNumber()
			tokens = append(tokens, t)
		} else if r == '[' {
			t := lexer.consumeLBracket()
			tokens = append(tokens, t)
		} else if r == '"' {
			t, err := lexer.consumeQuotedIdentifier()
			if err != nil {
				return tokens, err
			}
			tokens = append(tokens, t)
		} else if r == '\'' {
			t, err := lexer.consumeRawStringLiteral()
			if err != nil {
				return tokens, err
			}
			tokens = append(tokens, t)
		} else if r == '`' {
			t, err := lexer.consumeLiteral()
			if err != nil {
				return tokens, err
			}
			tokens = append(tokens, t)
		} else if r == '|' {
			t := lexer.matchOrElse(r, '|', tOr, tPipe)
			tokens = append(tokens, t)
		} else if r == '<' {
			t := lexer.matchOrElse(r, '=', tLTE, tLT)
			tokens = append(tokens, t)
		} else if r == '>' {
			t := lexer.matchOrElse(r, '=', tGTE, tGT)
			tokens = append(tokens, t)
		} else if r == '!' {
			t := lexer.matchOrElse(r, '=', tNE, tNot)
			tokens = append(tokens, t)
		} else if r == '=' {
			t := lexer.matchOrElse(r, '=', tEQ, tUnknown)
			tokens = append(tokens, t)
		} else if r == '&' {
			t := lexer.matchOrElse(r, '&', tAnd, tExpref)
			tokens = append(tokens, t)
		} else if r == eof {
			break loop
		} else if _, ok := whiteSpace[r]; ok {
			// Ignore whitespace
		} else {
			return tokens, lexer.syntaxError(fmt.Sprintf("Unknown char: %s", strconv.QuoteRuneToASCII(r)))
		}
	}
	tokens = append(tokens, token{tEOF, "", len(lexer.expression), 0})
	return tokens, nil
}
Exemplo n.º 18
0
func main() {
	fmt.Println(strconv.QuoteRune('中'))
	fmt.Println(strconv.QuoteRuneToASCII('中'))
	fmt.Println(strconv.QuoteRuneToASCII('	'))
}
Exemplo n.º 19
0
func main() {
	scanner := bufio.NewScanner(os.Stdin)

	scanner.Scan()
	MESSAGE := scanner.Text()

	length := len(MESSAGE)

	//var charscode [int(length)]chardata

	//fmt.Fprintln(os.Stderr, int(length), charscode )

	//stemp := []string{"", ""}

	sreadfrom := ""
	sans := ""

	// var slice = make([]string,length)

	//for key, value := range slice {
	//slice[key] = MESSAGE[key]
	//}

	for l := 0; l < length; l++ {
		temp1 := int64(MESSAGE[l])
		asbin := strconv.FormatInt(temp1, 2)
		lookat := string(asbin)

		if len(lookat) == 6 {
			temp := "0"
			temp += lookat
			sreadfrom += temp
		} else {
			sreadfrom += lookat
		}

	}

	fmt.Fprintln(os.Stderr, sreadfrom)

	//0,1, or 2.

	state := 0
	// 1 == true, 0 == false
	//prev := false
	count := 0

	for j := 0; j < len(sreadfrom); j++ {
		//fmt.Println(rune(lookat[j]))

		s, _ := strconv.Unquote(strconv.QuoteRuneToASCII(rune(sreadfrom[j])))

		//initial encounter 1
		if s == "1" && state == 0 {

			state = 1

		}

		//initial encounter 0
		if s == "0" && state == 0 {

			state = 2

		}

		//swapped from 0 to 1
		if s == "0" && state == 1 {
			//print

			sans += "0 "

			for k := 0; k < count; k++ {
				sans += "0"
			}

			count = 0
			state = 2
			sans += " "
		}

		//swapped from 1 to 0
		if s == "1" && state == 2 {
			//print

			sans += "00 "

			for k := 0; k < count; k++ {
				sans += "0"
			}

			count = 0
			state = 1
			sans += " "
		}

		count++

		//if reached the end
		if j == len(sreadfrom)-1 {
			if state == 1 {
				sans += "0 "

				for k := 0; k < count; k++ {
					sans += "0"
				}

			}
			if state == 2 {
				sans += "00 "

				for k := 0; k < count; k++ {
					sans += "0"
				}

			}

			//sans += " "
		}

	}

	count = 0
	state = 0

	//sans += " "

	//}

	fmt.Println(sans) // Write answer to stdout
}
Exemplo n.º 20
0
Arquivo: bid.go Projeto: ngaut/ddtxn
func main() {
	flag.Parse()
	runtime.GOMAXPROCS(*nprocs)

	if *clientGoRoutines == 0 {
		*clientGoRoutines = *nprocs
	}
	if *nworkers == 0 {
		*nworkers = *nprocs
	}

	if *doValidate {
		if !*ddtxn.Allocate {
			log.Fatalf("Cannot correctly validate without waiting for results; add -allocate\n")
		}
	}

	var nproducts int
	if *contention > 0 {
		nproducts = *nbidders / int(*contention)
	} else {
		nproducts = ddtxn.NUM_ITEMS
	}
	s := ddtxn.NewStore()
	coord := ddtxn.NewCoordinator(*nworkers, s)

	if *ddtxn.CountKeys {
		for i := 0; i < *nworkers; i++ {
			w := coord.Workers[i]
			w.NKeyAccesses = make([]int64, *nbidders)
		}
	}

	rubis := &apps.Rubis{}
	rubis.Init(nproducts, *nbidders, *nworkers, *clientGoRoutines, *ZipfDist, 0)
	rubis.PopulateBids(s, coord) // Just creates items to bid on
	fmt.Printf("Done populating bids\n")

	if !*ddtxn.Allocate {
		prealloc := time.Now()
		tmp := *ddtxn.UseRLocks
		*ddtxn.UseRLocks = true
		// Preallocate keys

		bids_per_worker := 200000.0
		if *nworkers == 20 {
			bids_per_worker *= 20
		}

		if *rounds {
			parallelism := 10
			rounds := *nworkers / parallelism
			if rounds == 0 {
				rounds = 1
			}
			for j := 0; j < rounds; j++ {
				fmt.Printf("Doing round %v\n", j)
				var wg sync.WaitGroup
				for i := j * parallelism; i < (j+1)*parallelism; i++ {
					if i >= *nworkers {
						break
					}
					wg.Add(1)
					go func(i int) {
						coord.Workers[i].PreallocateRubis(0, int(bids_per_worker), ddtxn.NUM_ITEMS)
						wg.Done()
					}(i)
				}
				wg.Wait()
			}
		} else {
			var wg sync.WaitGroup
			for i := 0; i < *nworkers; i++ {
				wg.Add(1)
				go func(i int) {
					coord.Workers[i].PreallocateRubis(0, int(bids_per_worker), ddtxn.NUM_ITEMS)
					wg.Done()
				}(i)
			}
			wg.Wait()
		}
		*ddtxn.UseRLocks = tmp
		fmt.Printf("Allocation took %v\n", time.Since(prealloc))
	}
	fmt.Printf("Done initializing rubis\n")

	p := prof.StartProfile()
	start := time.Now()
	gave_up := make([]int64, *clientGoRoutines)
	var wg sync.WaitGroup
	for i := 0; i < *clientGoRoutines; i++ {
		exp := ddtxn.MakeExp(30)
		wg.Add(1)
		go func(n int) {
			retries := make(ddtxn.RetryHeap, 0)
			heap.Init(&retries)
			end_time := time.Now().Add(time.Duration(*nsec) * time.Second)
			var local_seed uint32 = uint32(rand.Intn(1000000))
			wi := n % (*nworkers)
			w := coord.Workers[wi]
			for {
				tm := time.Now()
				if !end_time.After(tm) {
					break
				}
				var t ddtxn.Query
				if len(retries) > 0 && retries[0].TS.Before(tm) {
					t = heap.Pop(&retries).(ddtxn.Query)
				} else {
					rubis.MakeBid(w.ID, &local_seed, &t)
					if *ddtxn.Latency {
						t.S = time.Now()
					}
				}
				if *doValidate {
					t.W = make(chan struct {
						R *ddtxn.Result
						E error
					})
				}
				committed := false
				_, err := w.One(t)
				if err == ddtxn.ESTASH {
					if *doValidate {
						x := <-t.W
						err = x.E
					}
					committed = true
				} else if err == ddtxn.EABORT {
					committed = false
				} else {
					committed = true
				}
				t.I++
				if !committed {
					t.TS = tm.Add(time.Duration(ddtxn.RandN(&local_seed, exp.Exp(t.I))) * time.Microsecond)
					if t.TS.Before(end_time) {
						heap.Push(&retries, t)
					} else {
						gave_up[n]++
					}
				}

				if committed && *doValidate {
					rubis.Add(t)
				}
			}
			wg.Done()
			if len(retries) > 0 {
				dlog.Printf("[%v] Length of retry queue on exit: %v\n", n, len(retries))
			}
			gave_up[n] = gave_up[n] + int64(len(retries))
		}(i)
	}
	wg.Wait()
	coord.Finish()
	end := time.Since(start)
	p.Stop()
	stats := make([]int64, ddtxn.LAST_STAT)
	nitr, nwait, nwait2 := ddtxn.CollectCounts(coord, stats)
	_ = nwait2

	if *doValidate {
		rubis.Validate(s, int(nitr))
	}

	for i := 1; i < *clientGoRoutines; i++ {
		gave_up[0] = gave_up[0] + gave_up[i]
	}

	if !*ddtxn.Allocate {
		keys := []rune{'b', 'c', 'd', 'i', 'k', 'u'}
		for i := 0; i < *nworkers; i++ {
			dlog.Printf("w: %v ", i)
			for _, k := range keys {
				dlog.Printf("%v %v/%v \t", strconv.QuoteRuneToASCII(k), coord.Workers[i].CurrKey[k], coord.Workers[i].LastKey[k])
			}
			dlog.Printf("\n")
		}
	}

	out := fmt.Sprintf("  nworkers: %v, nwmoved: %v, nrmoved: %v, sys: %v, total/sec: %v, abortrate: %.2f, stashrate: %.2f, nbidders: %v, nitems: %v, contention: %v, done: %v, actual time: %v, throughput: ns/txn: %v, naborts: %v, coord time: %v, coord stats time: %v, total worker time transitioning: %v, nstashed: %v, rlock: %v, wrratio: %v, nsamples: %v, getkeys: %v, ddwrites: %v, nolock: %v, failv: %v, stashdone: %v, nfast: %v, gaveup: %v,  epoch changes: %v, potential: %v, coordtotaltime %v, mergetime: %v, readtime: %v, gotime: %v ", *nworkers, ddtxn.WMoved, ddtxn.RMoved, *ddtxn.SysType, float64(nitr)/end.Seconds(), 100*float64(stats[ddtxn.NABORTS])/float64(nitr+stats[ddtxn.NABORTS]), 100*float64(stats[ddtxn.NSTASHED])/float64(nitr+stats[ddtxn.NABORTS]), *nbidders, nproducts, *contention, nitr, end, end.Nanoseconds()/nitr, stats[ddtxn.NABORTS], ddtxn.Time_in_IE, ddtxn.Time_in_IE1, nwait, stats[ddtxn.NSTASHED], *ddtxn.UseRLocks, *ddtxn.WRRatio, stats[ddtxn.NSAMPLES], stats[ddtxn.NGETKEYCALLS], stats[ddtxn.NDDWRITES], stats[ddtxn.NO_LOCK], stats[ddtxn.NFAIL_VERIFY], stats[ddtxn.NDIDSTASHED], ddtxn.Nfast, gave_up[0], ddtxn.NextEpoch, coord.PotentialPhaseChanges, coord.TotalCoordTime, coord.MergeTime, coord.ReadTime, coord.GoTime)
	fmt.Printf(out)
	fmt.Printf("\n")

	fmt.Printf("DD: %v\n", coord.Workers[0].Store().DD())
	f, err := os.OpenFile(*dataFile, os.O_APPEND|os.O_WRONLY|os.O_CREATE, 0600)
	if err != nil {
		panic(err)
	}
	defer f.Close()

	ddtxn.PrintStats(out, stats, f, coord, s, *nbidders)

	x, y := coord.Latency()
	f.WriteString(x)
	f.WriteString(y)
	f.WriteString("\n")
}