How to use parseRawString method of json Package

Best Go-testdeep code snippet using json.parseRawString

parser.go

Source:parser.go

...183	if n := strings.IndexByte(data, '"'); n >= 0 && strings.IndexByte(data[:n], '\\') < 0 {184		return data[n+1:], nil185	}186	// Slow path - escape sequences are present.187	rs, tail, err := json.parseRawString(data)188	if err != nil {189		return tail, err190	}191	for {192		n := strings.IndexByte(rs, '\\')193		if n < 0 {194			return tail, nil195		}196		n++197		if n >= len(rs) {198			return tail, fmt.Errorf("BUG: parseRawString returned invalid string with trailing backslash: %q", rs)199		}200		ch := rs[n]201		rs = rs[n+1:]202		if ch < 0x20 {203			return tail, fmt.Errorf("string cannot contain control char 0x%02X", ch)204		}205		switch ch {206		case '"', '\\', '/', 'b', 'f', 'n', 'r', 't':207			// Valid escape sequences - see http://json.org/208			break209		case 'u':210			if len(rs) < 4 {211				return tail, fmt.Errorf(`too short escape sequence: \u%s`, rs)212			}213			xs := rs[:4]214			_, err := strconv.ParseUint(xs, 16, 16)215			if err != nil {216				return tail, fmt.Errorf(`invalid escape sequence \u%s: %s`, xs, err)217			}218			rs = rs[4:]219		default:220			return tail, fmt.Errorf(`unknown escape sequence \%c`, ch)221		}222	}223}224func (json *JsonParser) parseNumber(data string) ([]byte, string, error) {225	var number []byte226	if len(data) == 0 {227		return number, data, fmt.Errorf("zero-length number")228	}229	if data[0] == '-' {230		number = append(number, '-')231		data = data[1:]232		if len(data) == 0 {233			return number, data, fmt.Errorf("missing number after minus")234		}235	}236	i := 0237	for i < len(data) {238		if data[i] < '0' || data[i] > '9' {239			break240		}241		number = append(number, data[i])242		i++243	}244	if i <= 0 {245		return number, data, fmt.Errorf("expecting 0..9 digit, got %c", data[0])246	}247	if data[0] == '0' && i != 1 {248		return number, data, fmt.Errorf("unexpected number starting from 0")249	}250	if i >= len(data) {251		return number, "", nil252	}253	if data[i] == '.' {254		// Validate fractional part255		number = append(number, data[i])256		data = data[i+1:]257		if len(data) == 0 {258			return number, data, fmt.Errorf("missing fractional part")259		}260		i = 0261		for i < len(data) {262			if data[i] < '0' || data[i] > '9' {263				break264			}265			number = append(number, data[i])266			i++267		}268		if i == 0 {269			return number, data, fmt.Errorf("expecting 0..9 digit in fractional part, got %c", data[0])270		}271		if i >= len(data) {272			return number, "", nil273		}274	}275	return number, data[i:], nil276}277func (json *JsonParser) parseRawString(data string) (string, string, error) {278	n := strings.IndexByte(data, '"')279	if n < 0 {280		return data, "", fmt.Errorf(`missing closing '"'`)281	}282	if n == 0 || data[n-1] != '\\' {283		// Fast path. No escaped ".284		return data[:n], data[n+1:], nil285	}286	// Slow path - possible escaped " found.287	ss := data288	for {289		i := n - 1290		for i > 0 && data[i-1] == '\\' {291			i--...

validate.go

Source:validate.go

...178	if n := strings.IndexByte(s, '"'); n >= 0 && strings.IndexByte(s[:n], '\\') < 0 {179		return s[:n], s[n+1:], nil180	}181	// Slow path - escape sequences are present.182	rs, tail, err := parseRawString(s)183	if err != nil {184		return rs, tail, err185	}186	for {187		n := strings.IndexByte(rs, '\\')188		if n < 0 {189			return rs, tail, nil190		}191		n++192		if n >= len(rs) {193			return rs, tail, fmt.Errorf("BUG: parseRawString returned invalid string with trailing backslash: %q", rs)194		}195		ch := rs[n]196		rs = rs[n+1:]197		switch ch {198		case '"', '\\', '/', 'b', 'f', 'n', 'r', 't':199			// Valid escape sequences - see http://json.org/200			break201		case 'u':202			if len(rs) < 4 {203				return rs, tail, fmt.Errorf(`too short escape sequence: \u%s`, rs)204			}205			xs := rs[:4]206			_, err := strconv.ParseUint(xs, 16, 16)207			if err != nil {208				return rs, tail, fmt.Errorf(`invalid escape sequence \u%s: %s`, xs, err)209			}210			rs = rs[4:]211		default:212			return rs, tail, fmt.Errorf(`unknown escape sequence \%c`, ch)213		}214	}215}216func validateNumber(s string) (string, error) {217	if len(s) == 0 {218		return s, fmt.Errorf("zero-length number")219	}220	if s[0] == '-' {221		s = s[1:]222		if len(s) == 0 {223			return s, fmt.Errorf("missing number after minus")224		}225	}226	i := 0227	for i < len(s) {228		if s[i] < '0' || s[i] > '9' {229			break230		}231		i++232	}233	if i <= 0 {234		return s, fmt.Errorf("expecting 0..9 digit, got %c", s[0])235	}236	if s[0] == '0' && i != 1 {237		return s, fmt.Errorf("unexpected number starting from 0")238	}239	if i >= len(s) {240		return "", nil241	}242	if s[i] == '.' {243		// Validate fractional part244		s = s[i+1:]245		if len(s) == 0 {246			return s, fmt.Errorf("missing fractional part")247		}248		i = 0249		for i < len(s) {250			if s[i] < '0' || s[i] > '9' {251				break252			}253			i++254		}255		if i == 0 {256			return s, fmt.Errorf("expecting 0..9 digit in fractional part, got %c", s[0])257		}258		if i >= len(s) {259			return "", nil260		}261	}262	if s[i] == 'e' || s[i] == 'E' {263		// Validate exponent part264		s = s[i+1:]265		if len(s) == 0 {266			return s, fmt.Errorf("missing exponent part")267		}268		if s[0] == '-' || s[0] == '+' {269			s = s[1:]270			if len(s) == 0 {271				return s, fmt.Errorf("missing exponent part")272			}273		}274		i = 0275		for i < len(s) {276			if s[i] < '0' || s[i] > '9' {277				break278			}279			i++280		}281		if i == 0 {282			return s, fmt.Errorf("expecting 0..9 digit in exponent part, got %c", s[0])283		}284		if i >= len(s) {285			return "", nil286		}287	}288	return s[i:], nil289}290func skipWS(s string) string {291	if len(s) == 0 || s[0] > 0x20 {292		// Fast path.293		return s294	}295	return skipWSSlow(s)296}297func skipWSSlow(s string) string {298	if len(s) == 0 || s[0] != 0x20 && s[0] != 0x0A && s[0] != 0x09 && s[0] != 0x0D {299		return s300	}301	for i := 1; i < len(s); i++ {302		if s[i] != 0x20 && s[i] != 0x0A && s[i] != 0x09 && s[i] != 0x0D {303			return s[i:]304		}305	}306	return ""307}308func b2s(b []byte) string {309	return *(*string)(unsafe.Pointer(&b))310}311const maxStartEndStringLen = 80312func startEndString(s string) string {313	if len(s) <= maxStartEndStringLen {314		return s315	}316	start := s[:40]317	end := s[len(s)-40:]318	return start + "..." + end319}320func parseRawString(s string) (string, string, error) {321	n := strings.IndexByte(s, '"')322	if n < 0 {323		return s, "", fmt.Errorf(`missing closing '"'`)324	}325	if n == 0 || s[n-1] != '\\' {326		// Fast path. No escaped ".327		return s[:n], s[n+1:], nil328	}329	// Slow path - possible escaped " found.330	ss := s331	for {332		i := n - 1333		for i > 0 && s[i-1] == '\\' {334			i--...

json_reader.go

Source:json_reader.go

...68		}69		return tail, r.Output.EndArray(ptr)70	}71	if s[0] == '"' {72		ss, tail, err := parseRawString(s[1:])73		if err != nil {74			return tail, fmt.Errorf("cannot parse string: %s", err)75		}76		return tail, r.Output.PushString(unescapeStringBestEffort(ss))77	}78	if s[0] == 't' {79		if len(s) < len("true") || s[:len("true")] != "true" {80			return s, fmt.Errorf("unexpected value found: %q", s)81		}82		return s[len("true"):], r.Output.PushBool(true)83	}84	if s[0] == 'f' {85		if len(s) < len("false") || s[:len("false")] != "false" {86			return s, fmt.Errorf("unexpected value found: %q", s)87		}88		return s[len("false"):], r.Output.PushBool(false)89	}90	if s[0] == 'n' {91		if len(s) < len("null") || s[:len("null")] != "null" {92			return s, fmt.Errorf("unexpected value found: %q", s)93		}94		return s[len("null"):], r.Output.PushNull()95	}96	integral, ns, tail, err := parseRawNumber(s)97	if err != nil {98		return tail, fmt.Errorf("cannot parse number: %s", err)99	}100	if integral {101		return tail, r.Output.PushInt(fastfloat.ParseInt64BestEffort(ns))102	} else {103		return tail, r.Output.PushFloat(fastfloat.ParseBestEffort(ns))104	}105}106func (r *JsonReader) parseArray(s string) (string, error) {107	s = skipWS(s)108	if len(s) == 0 {109		return s, fmt.Errorf("missing ']'")110	}111	if s[0] == ']' {112		return s[1:], nil113	}114	for {115		var err error116		s = skipWS(s)117		s, err = r.parseValue(s)118		if err != nil {119			return s, fmt.Errorf("cannot parse array value: %s", err)120		}121		s = skipWS(s)122		if len(s) == 0 {123			return s, fmt.Errorf("unexpected end of array")124		}125		if s[0] == ',' {126			s = s[1:]127			continue128		}129		if s[0] == ']' {130			s = s[1:]131			return s, nil132		}133		return s, fmt.Errorf("missing ',' after array value")134	}135}136func (r *JsonReader) parseObject(s string) (string, error) {137	s = skipWS(s)138	if len(s) == 0 {139		return s, fmt.Errorf("missing '}'")140	}141	if s[0] == '}' {142		return s[1:], nil143	}144	for {145		var err error146		// Parse key.147		s = skipWS(s)148		if len(s) == 0 || s[0] != '"' {149			return s, fmt.Errorf(`cannot find opening '"" for object key`)150		}151		var k string152		k, s, err = parseRawKey(s[1:])153		if err != nil {154			return s, fmt.Errorf("cannot parse object key: %s", err)155		}156		if err := r.Output.PushObjectKey(k); err != nil {157			return s, err158		}159		s = skipWS(s)160		if len(s) == 0 || s[0] != ':' {161			return s, fmt.Errorf("missing ':' after object key")162		}163		s = s[1:]164		// Parse value165		s = skipWS(s)166		s, err = r.parseValue(s)167		if err != nil {168			return s, fmt.Errorf("cannot parse object value: %s", err)169		}170		s = skipWS(s)171		if len(s) == 0 {172			return s, fmt.Errorf("unexpected end of object")173		}174		if s[0] == ',' {175			s = s[1:]176			continue177		}178		if s[0] == '}' {179			return s[1:], nil180		}181		return s, fmt.Errorf("missing ',' after object value")182	}183}184func unescapeStringBestEffort(s string) string {185	n := strings.IndexByte(s, '\\')186	if n < 0 {187		// Fast path - nothing to unescape.188		return s189	}190	// Slow path - unescape string.191	var b []byte192	s = s[n+1:]193	for len(s) > 0 {194		ch := s[0]195		s = s[1:]196		switch ch {197		case '"':198			b = append(b, '"')199		case '\\':200			b = append(b, '\\')201		case '/':202			b = append(b, '/')203		case 'b':204			b = append(b, '\b')205		case 'f':206			b = append(b, '\f')207		case 'n':208			b = append(b, '\n')209		case 'r':210			b = append(b, '\r')211		case 't':212			b = append(b, '\t')213		case 'u':214			if len(s) < 4 {215				// Too short escape sequence. Just store it unchanged.216				b = append(b, "\\u"...)217				break218			}219			xs := s[:4]220			x, err := strconv.ParseUint(xs, 16, 16)221			if err != nil {222				// Invalid escape sequence. Just store it unchanged.223				b = append(b, "\\u"...)224				break225			}226			s = s[4:]227			if !utf16.IsSurrogate(rune(x)) {228				b = append(b, string(rune(x))...)229				break230			}231			// Surrogate.232			// See https://en.wikipedia.org/wiki/Universal_Character_Set_characters#Surrogates233			if len(s) < 6 || s[0] != '\\' || s[1] != 'u' {234				b = append(b, "\\u"...)235				b = append(b, xs...)236				break237			}238			x1, err := strconv.ParseUint(s[2:6], 16, 16)239			if err != nil {240				b = append(b, "\\u"...)241				b = append(b, xs...)242				break243			}244			r := utf16.DecodeRune(rune(x), rune(x1))245			b = append(b, string(r)...)246			s = s[6:]247		default:248			// Unknown escape sequence. Just store it unchanged.249			b = append(b, '\\', ch)250		}251		n = strings.IndexByte(s, '\\')252		if n < 0 {253			b = append(b, s...)254			break255		}256		b = append(b, s[:n]...)257		s = s[n+1:]258	}259	return unsafeutil.B2S(b)260}261// parseRawKey is similar to parseRawString, but is optimized262// for small-sized keys without escape sequences.263func parseRawKey(s string) (string, string, error) {264	for i := 0; i < len(s); i++ {265		if s[i] == '"' {266			// Fast path.267			return s[:i], s[i+1:], nil268		}269		if s[i] == '\\' {270			// Slow path.271			return parseRawString(s)272		}273	}274	return s, "", fmt.Errorf(`missing closing '"'`)275}276func parseRawString(s string) (string, string, error) {277	n := strings.IndexByte(s, '"')278	if n < 0 {279		return s, "", fmt.Errorf(`missing closing '"'`)280	}281	if n == 0 || s[n-1] != '\\' {282		// Fast path. No escaped ".283		return s[:n], s[n+1:], nil284	}285	// Slow path - possible escaped " found.286	ss := s287	for {288		i := n - 1289		for i > 0 && s[i-1] == '\\' {290			i--...

parseRawString

Using AI Code Generation

1import (2type Person struct {3}4func (p *Person) String() string {5	return fmt.Sprintf("%v (%v years)", p.Name, p.Age)6}7func main() {8	var jsonBlob = []byte(`[9		{"Name": "Platypus", "Order": "Monotremata"},10		{"Name": "Quoll", "Order": "Dasyuromorphia"}11	type Animal struct {12	}13	err := json.Unmarshal(jsonBlob, &animals)14	if err != nil {15		fmt.Println("error:", err)16	}17	fmt.Printf("%+v18}19[{{Platypus Monotremata} {Quoll Dasyuromorphia}}]20[]interface{}, for JSON arrays21map[string]interface{}, for JSON objects

parseRawString

Using AI Code Generation

1import (2func main() {3	str := `{"name":"John", "age":30, "city":"New York"}`4	var result map[string]interface{}5	json.Unmarshal([]byte(str), &result)6	fmt.Println(result)7}

parseRawString

Using AI Code Generation

1import (2func main() {3    raw := json.RawMessage(`{"a": "b"}`)4    var m map[string]interface{}5    err := json.Unmarshal(raw, &m)6    if err != nil {7        panic(err)8    }9    fmt.Println(m)10}11import (12func main() {13    raw := json.RawMessage(`{"a": "b"}`)14    var m map[string]interface{}15    err := json.Unmarshal(raw, &m)16    if err != nil {17        panic(err)18    }19    fmt.Println(m)20}21import (22func main() {23    raw := json.RawMessage(`{"a": "b"}`)24    var m map[string]interface{}25    err := json.Unmarshal(raw, &m)26    if err != nil {27        panic(err)28    }29    fmt.Println(m)30}31import (32func main() {33    raw := json.RawMessage(`{"a": "b"}`)34    var m map[string]interface{}35    err := json.Unmarshal(raw, &m)36    if err != nil {37        panic(err)38    }39    fmt.Println(m)40}41import (42func main() {43    raw := json.RawMessage(`{"a": "b"}`)44    var m map[string]interface{}45    err := json.Unmarshal(raw, &m)46    if err != nil {47        panic(err)48    }49    fmt.Println(m)50}

parseRawString

Using AI Code Generation

1import (2func main() {3	s := `{"name": "John", "age": 30}`4	b := []byte(s)5	var f interface{}6	json.Unmarshal(b, &f)7	m := f.(map[string]interface{})8	for k, v := range m {9		switch vv := v.(type) {10			fmt.Println(k, "is string", vv)11			fmt.Println(k, "is float64", vv)12			fmt.Println(k, "is of a type I don't know how to handle")13		}14	}15}16import (17func main() {18	m := map[string]interface{}{19	}20	b, _ := json.Marshal(m)21	fmt.Println(string(b))22}23{"name":"John","age":30}24import (25func main() {26	m := map[string]interface{}{27	}28	b, _ := json.MarshalIndent(m, "", " ")29	fmt.Println(string(b))30}31{32}33import (34func main() {35	s := `{"name": "John", "age": 30}`36	b := []byte(s)37	var f interface{}38	json.Unmarshal(b, &f)39	m := f.(map[string]interface{})40	for k, v := range m {

parseRawString

Using AI Code Generation

1import (2func main() {3	data := []byte(`{"Name":"Wednesday","Age":6,"Parents":["Gomez","Morticia"]}`)4	var f interface{}5	err := json.Unmarshal(data, &f)6	if err != nil {7		panic(err)8	}9	m := f.(map[string]interface{})10	fmt.Println(m["Name"])11	fmt.Println(m["Age"])12	fmt.Println(m["Parents"])13}

parseRawString

Using AI Code Generation

1import (2func main() {3	var rawjson = []byte(`{"Name":"John","Age":30,"City":"New York"}`)4	var result map[string]interface{}5	json.Unmarshal(rawjson, &result)6	fmt.Println(result)7}8import (9func main() {10	var rawjson = []byte(`[11		{"Name":"John","Age":30,"City":"New York"},12		{"Name":"Alice","Age":25,"City":"Paris"}13	var result []map[string]interface{}14	json.Unmarshal(rawjson, &result)15	fmt.Println(result)16}17[{Age:30 City:New York Name:John} {Age:25 City:Paris Name:Alice}]18import (19func main() {20	var rawjson = []byte(`[21		{"Name":"John","Age":30,"City":"New York"},22		{"Name":"Alice","Age":25,"City":"Paris"}23	var result []map[string]interface{}24	json.Unmarshal(rawjson, &result)25	fmt.Println(result)26}27[{Age:30 City:New York Name:John} {Age:25 City:Paris Name:Alice}]28import (

parseRawString

Using AI Code Generation

1import (2func main() {3    s = `{"Name": "John", "Age": 30}`4    var m map[string]interface{}5    err := json.Unmarshal([]byte(s), &m)6    if err != nil {7        panic(err)8    }9    fmt.Println(m)10}11import (12func main() {13    s = `{"Name": "John", "Age": 30}`14    var m map[string]interface{}15    err := json.Unmarshal([]byte(s), &m)16    if err != nil {17        panic(err)18    }19    fmt.Println(m)20}21import (22func main() {23    s = `{"Name": "John", "Age": 30}`24    var m map[string]interface{}25    err := json.Unmarshal([]byte(s), &m)26    if err != nil {27        panic(err)28    }29    fmt.Println(m)30}31import (32func main() {33    s = `{"Name": "John", "Age": 30}`34    var m map[string]interface{}35    err := json.Unmarshal([]byte(s), &m)36    if err != nil {37        panic(err)38    }39    fmt.Println(m)40}

parseRawString

Using AI Code Generation

1import (2func main() {3	jsonString := `{"id": "123", "name": "John"}`4	jsonRaw, err := json.RawMessage(jsonString).MarshalJSON()5	if err != nil {6		fmt.Println("Error Occured")7	} else {8		fmt.Println(string(jsonRaw))9	}10}11{"id":"123","name":"John"}

parseRawString

Using AI Code Generation

1import (2func main() {3	rawString := `{"name":"Rajeev", "age":42}`4	var parsed map[string]interface{}5	json.Unmarshal([]byte(rawString), &parsed)6	fmt.Println(parsed)7}

parseRawString

Using AI Code Generation

1import (2func main() {3    var jsonString string = `{"name":"Golang","version":1.9}`4    var result map[string]interface{}5    json.Unmarshal([]byte(jsonString), &result)6    json, _ := json.Marshal(result)7    fmt.Println(string(json))8}9{"name":"Golang","version":1.9}

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