How to use parseRawString method of json Package

Best Go-testdeep code snippet using json.parseRawString

parser.go

Source:parser.go Github

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...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--...

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validate.go

Source:validate.go Github

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...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--...

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json_reader.go

Source:json_reader.go Github

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...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--...

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parseRawString

Using AI Code Generation

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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

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parseRawString

Using AI Code Generation

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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}

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parseRawString

Using AI Code Generation

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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}

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parseRawString

Using AI Code Generation

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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 {

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parseRawString

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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}

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parseRawString

Using AI Code Generation

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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 (

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parseRawString

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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}

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parseRawString

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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"}

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parseRawString

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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}

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parseRawString

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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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