How to use skipWs method of json Package

Best Go-testdeep code snippet using json.skipWs

validate.go

Source:validate.go Github

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1package fastjson2import (3 "fmt"4 "strconv"5 "strings"6)7// Validate validates JSON s.8func Validate(s string) error {9 s = skipWS(s)10 tail, err := validateValue(s)11 if err != nil {12 return fmt.Errorf("cannot parse JSON: %s; unparsed tail: %q", err, startEndString(tail))13 }14 tail = skipWS(tail)15 if len(tail) > 0 {16 return fmt.Errorf("unexpected tail: %q", startEndString(tail))17 }18 return nil19}20// ValidateBytes validates JSON b.21func ValidateBytes(b []byte) error {22 return Validate(b2s(b))23}24func validateValue(s string) (string, error) {25 if len(s) == 0 {26 return s, fmt.Errorf("cannot parse empty string")27 }28 if s[0] == '{' {29 tail, err := validateObject(s[1:])30 if err != nil {31 return tail, fmt.Errorf("cannot parse object: %s", err)32 }33 return tail, nil34 }35 if s[0] == '[' {36 tail, err := validateArray(s[1:])37 if err != nil {38 return tail, fmt.Errorf("cannot parse array: %s", err)39 }40 return tail, nil41 }42 if s[0] == '"' {43 sv, tail, err := validateString(s[1:])44 if err != nil {45 return tail, fmt.Errorf("cannot parse string: %s", err)46 }47 // Scan the string for control chars.48 for i := 0; i < len(sv); i++ {49 if sv[i] < 0x20 {50 return tail, fmt.Errorf("string cannot contain control char 0x%02X", sv[i])51 }52 }53 return tail, nil54 }55 if s[0] == 't' {56 if len(s) < len("true") || s[:len("true")] != "true" {57 return s, fmt.Errorf("unexpected value found: %q", s)58 }59 return s[len("true"):], nil60 }61 if s[0] == 'f' {62 if len(s) < len("false") || s[:len("false")] != "false" {63 return s, fmt.Errorf("unexpected value found: %q", s)64 }65 return s[len("false"):], nil66 }67 if s[0] == 'n' {68 if len(s) < len("null") || s[:len("null")] != "null" {69 return s, fmt.Errorf("unexpected value found: %q", s)70 }71 return s[len("null"):], nil72 }73 tail, err := validateNumber(s)74 if err != nil {75 return tail, fmt.Errorf("cannot parse number: %s", err)76 }77 return tail, nil78}79func validateArray(s string) (string, error) {80 s = skipWS(s)81 if len(s) == 0 {82 return s, fmt.Errorf("missing ']'")83 }84 if s[0] == ']' {85 return s[1:], nil86 }87 for {88 var err error89 s = skipWS(s)90 s, err = validateValue(s)91 if err != nil {92 return s, fmt.Errorf("cannot parse array value: %s", err)93 }94 s = skipWS(s)95 if len(s) == 0 {96 return s, fmt.Errorf("unexpected end of array")97 }98 if s[0] == ',' {99 s = s[1:]100 continue101 }102 if s[0] == ']' {103 s = s[1:]104 return s, nil105 }106 return s, fmt.Errorf("missing ',' after array value")107 }108}109func validateObject(s string) (string, error) {110 s = skipWS(s)111 if len(s) == 0 {112 return s, fmt.Errorf("missing '}'")113 }114 if s[0] == '}' {115 return s[1:], nil116 }117 for {118 var err error119 // Parse key.120 s = skipWS(s)121 if len(s) == 0 || s[0] != '"' {122 return s, fmt.Errorf(`cannot find opening '"" for object key`)123 }124 var key string125 key, s, err = validateKey(s[1:])126 if err != nil {127 return s, fmt.Errorf("cannot parse object key: %s", err)128 }129 // Scan the key for control chars.130 for i := 0; i < len(key); i++ {131 if key[i] < 0x20 {132 return s, fmt.Errorf("object key cannot contain control char 0x%02X", key[i])133 }134 }135 s = skipWS(s)136 if len(s) == 0 || s[0] != ':' {137 return s, fmt.Errorf("missing ':' after object key")138 }139 s = s[1:]140 // Parse value141 s = skipWS(s)142 s, err = validateValue(s)143 if err != nil {144 return s, fmt.Errorf("cannot parse object value: %s", err)145 }146 s = skipWS(s)147 if len(s) == 0 {148 return s, fmt.Errorf("unexpected end of object")149 }150 if s[0] == ',' {151 s = s[1:]152 continue153 }154 if s[0] == '}' {155 return s[1:], nil156 }157 return s, fmt.Errorf("missing ',' after object value")158 }159}160// validateKey is similar to validateString, but is optimized161// for typical object keys, which are quite small and have no escape sequences.162func validateKey(s string) (string, string, error) {163 for i := 0; i < len(s); i++ {164 if s[i] == '"' {165 // Fast path - the key doesn't contain escape sequences.166 return s[:i], s[i+1:], nil167 }168 if s[i] == '\\' {169 // Slow path - the key contains escape sequences.170 return validateString(s)171 }172 }173 return "", s, fmt.Errorf(`missing closing '"'`)174}175func validateString(s string) (string, string, error) {176 // Try fast path - a string without escape sequences.177 if n := strings.IndexByte(s, '"'); n >= 0 && strings.IndexByte(s[:n], '\\') < 0 {178 return s[:n], s[n+1:], nil179 }180 // Slow path - escape sequences are present.181 rs, tail, err := parseRawString(s)182 if err != nil {183 return rs, tail, err184 }185 for {186 n := strings.IndexByte(rs, '\\')187 if n < 0 {188 return rs, tail, nil189 }190 n++191 if n >= len(rs) {192 return rs, tail, fmt.Errorf("BUG: parseRawString returned invalid string with trailing backslash: %q", rs)193 }194 ch := rs[n]195 rs = rs[n+1:]196 switch ch {197 case '"', '\\', '/', 'b', 'f', 'n', 'r', 't':198 // Valid escape sequences - see http://json.org/199 break200 case 'u':201 if len(rs) < 4 {202 return rs, tail, fmt.Errorf(`too short escape sequence: \u%s`, rs)203 }204 xs := rs[:4]205 _, err := strconv.ParseUint(xs, 16, 16)206 if err != nil {207 return rs, tail, fmt.Errorf(`invalid escape sequence \u%s: %s`, xs, err)208 }209 rs = rs[4:]210 default:211 return rs, tail, fmt.Errorf(`unknown escape sequence \%c`, ch)212 }213 }214}215func validateNumber(s string) (string, error) {216 if len(s) == 0 {217 return s, fmt.Errorf("zero-length number")218 }219 if s[0] == '-' {220 s = s[1:]221 if len(s) == 0 {222 return s, fmt.Errorf("missing number after minus")223 }224 }225 i := 0226 for i < len(s) {227 if s[i] < '0' || s[i] > '9' {228 break229 }230 i++231 }232 if i <= 0 {233 return s, fmt.Errorf("expecting 0..9 digit, got %c", s[0])234 }235 if s[0] == '0' && i != 1 {236 return s, fmt.Errorf("unexpected number starting from 0")237 }238 if i >= len(s) {239 return "", nil240 }241 if s[i] == '.' {242 // Validate fractional part243 s = s[i+1:]244 if len(s) == 0 {245 return s, fmt.Errorf("missing fractional part")246 }247 i = 0248 for i < len(s) {249 if s[i] < '0' || s[i] > '9' {250 break251 }252 i++253 }254 if i == 0 {255 return s, fmt.Errorf("expecting 0..9 digit in fractional part, got %c", s[0])256 }257 if i >= len(s) {258 return "", nil259 }260 }261 if s[i] == 'e' || s[i] == 'E' {262 // Validate exponent part263 s = s[i+1:]264 if len(s) == 0 {265 return s, fmt.Errorf("missing exponent part")266 }267 if s[0] == '-' || s[0] == '+' {268 s = s[1:]269 if len(s) == 0 {270 return s, fmt.Errorf("missing exponent part")271 }272 }273 i = 0274 for i < len(s) {275 if s[i] < '0' || s[i] > '9' {276 break277 }278 i++279 }280 if i == 0 {281 return s, fmt.Errorf("expecting 0..9 digit in exponent part, got %c", s[0])282 }283 if i >= len(s) {284 return "", nil285 }286 }287 return s[i:], nil288}...

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json_value.go

Source:json_value.go Github

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1// transform json encoded data into golang native value.2// cnf: SpaceKind, NumberKind, strict3package gson4import "strconv"5// primary interface to scan JSON text and return,6// a. text remaining to be parsed.7// b. as go-native value.8// calling this function will scan for exactly one JSON value9func json2value(txt string, config *Config) (string, interface{}) {10 txt = skipWS(txt, config.ws)11 if len(txt) < 1 {12 panic("gson scanner jsonEmpty")13 }14 if digitCheck[txt[0]] == 1 {15 return jsonnum2value(txt, config)16 }17 switch txt[0] {18 case 'n':19 if len(txt) >= 4 && txt[:4] == "null" {20 return txt[4:], nil21 }22 panic("gson scanner expectedNil")23 case 't':24 if len(txt) >= 4 && txt[:4] == "true" {25 return txt[4:], true26 }27 panic("gson scanner expectedTrue")28 case 'f':29 if len(txt) >= 5 && txt[:5] == "false" {30 return txt[5:], false31 }32 panic("gson scanner expectedFalse")33 case '"':34 bufn := config.bufferh.getbuffer(len(txt) * 5)35 scratch := bufn.data36 remtxt, n := scanString(txt, scratch)37 value := string(scratch[:n]) // this will copy the content.38 config.bufferh.putbuffer(bufn)39 return remtxt, value40 case '[':41 if txt = skipWS(txt[1:], config.ws); len(txt) == 0 {42 panic("gson scanner expectedCloseArray")43 } else if txt[0] == ']' {44 return txt[1:], []interface{}{}45 }46 arr := make([]interface{}, 0, 4)47 for {48 var tok interface{}49 txt, tok = json2value(txt, config)50 arr = append(arr, tok)51 if txt = skipWS(txt, config.ws); len(txt) == 0 {52 panic("gson scanner expectedCloseArray")53 } else if txt[0] == ',' {54 txt = skipWS(txt[1:], config.ws)55 } else if txt[0] == ']' {56 break57 } else {58 panic("gson scanner expectedCloseArray")59 }60 }61 return txt[1:], arr62 case '{':63 if txt = skipWS(txt[1:], config.ws); len(txt) == 0 {64 panic("gson scanner expectedCloseobject")65 } else if txt[0] == '}' {66 return txt[1:], map[string]interface{}{}67 } else if txt[0] != '"' {68 panic("gson scanner expectedKey")69 }70 var tok interface{}71 var n int72 m := make(map[string]interface{})73 bufn := config.bufferh.getbuffer(len(txt) * 5)74 scratch := bufn.data75 for {76 txt, n = scanString(txt, scratch) // empty string is also valid key77 key := string(scratch[:n])78 if txt = skipWS(txt, config.ws); len(txt) == 0 || txt[0] != ':' {79 panic("gson scanner expectedColon")80 }81 txt, tok = json2value(skipWS(txt[1:], config.ws), config)82 m[key] = tok83 if txt = skipWS(txt, config.ws); len(txt) == 0 {84 panic("gson scanner expectedCloseobject")85 } else if txt[0] == ',' {86 txt = skipWS(txt[1:], config.ws)87 } else if txt[0] == '}' {88 break89 } else {90 panic("gson scanner expectedCloseobject")91 }92 }93 config.bufferh.putbuffer(bufn)94 return txt[1:], m95 }96 panic("gson scanner expectedToken")97}98func jsonnum2value(txt string, config *Config) (string, interface{}) {99 s, e, l := 0, 1, len(txt)100 if len(txt) > 1 {101 for ; e < l && intCheck[txt[e]] == 1; e++ {102 }103 }104 switch config.nk {105 case FloatNumber:106 f, err := strconv.ParseFloat(txt[s:e], 64)107 if err != nil {108 panic(err)109 }110 return txt[e:], f111 case SmartNumber:112 if i, err := strconv.ParseInt(txt[s:e], 10, 64); err == nil {113 return txt[e:], i114 } else if ui, err := strconv.ParseUint(txt[s:e], 10, 64); err == nil {115 return txt[e:], ui116 }117 f, err := strconv.ParseFloat(txt[s:e], 64)118 if err != nil {119 panic(err)120 }121 return txt[e:], f122 }123 panic("unreachable code")124}...

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skipWs

Using AI Code Generation

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1import (2func main() {3 var jsonBlob = []byte(`[4 {"Name": "Platypus", "Order": "Monotremata"},5 {"Name": "Quoll", "Order": "Dasyuromorphia"}6 type Animal struct {7 }8 err := json.Unmarshal(jsonBlob, &animals)9 if err != nil {10 fmt.Println("error:", err)11 }12 fmt.Printf("%+v13}14[{Name:Platypus Order:Monotremata} {Name:Quoll Order:Dasyuromorphia}]

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skipWs

Using AI Code Generation

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1import (2func main() {3 b := []byte(`{"Name":"Wednesday","Age":6,"Parents":["Gomez","Morticia"]}`)4 dec := json.NewDecoder(strings.NewReader(string(b)))5 var f interface{}6 err := dec.Decode(&f)7 if err != nil {8 panic(err)9 }10 fmt.Println(f)11 m := f.(map[string]interface{})12 fmt.Println(m["Name"])13 fmt.Println(m["Age"])14 fmt.Println(m["Parents"])15}16func (dec *Decoder) skipWs()17import (18func main() {19 b := []byte(`{"Name":"Wednesday","Age":6,"Parents":["Gomez","Morticia"]}`)20 dec := json.NewDecoder(strings.NewReader(string(b)))21 var f interface{}22 err := dec.Decode(&f)23 if err != nil {24 panic(err)25 }26 fmt.Println(f)27 m := f.(map[string]interface{})28 fmt.Println(m["Name"])29 fmt.Println(m["Age"])30 fmt.Println(m["Parents"])31 dec.SkipWs()32}

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skipWs

Using AI Code Generation

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1import (2func main() {3 var 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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skipWs

Using AI Code Generation

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1import (2func main() {3 var data = []byte(`{"Name":"Wednesday","Age":6,"Parents":["Gomez","Morticia"]}`)4 var f interface{}5 err := json.Unmarshal(data, &f)6 if err != nil {7 fmt.Println("error:", err)8 }9 fmt.Println(f)10}11func Marshal(v interface{}) ([]byte, error)12import (13func main() {14 bolB, _ := json.Marshal(true)15 fmt.Println(string(bolB))16 intB, _ := json.Marshal(1)17 fmt.Println(string(intB))18 fltB, _ := json.Marshal(2.34)19 fmt.Println(string(fltB))20 strB, _ := json.Marshal("gopher")21 fmt.Println(string(strB))22 slcD := []string{"apple", "peach", "pear"}23 slcB, _ := json.Marshal(slcD)24 fmt.Println(string(slcB))25 mapD := map[string]int{"apple": 5, "lettuce": 7}26 mapB, _ := json.Marshal(mapD)27 fmt.Println(string(mapB))28 res1D := &Resident{29 }

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skipWs

Using AI Code Generation

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1import (2func main() {3 var jsonStr = []byte(`{"Name":"Wednesday","Age":6,"Parents":["Gomez","Morticia"]}`)4 var data map[string]interface{}5 if err := json.Unmarshal(jsonStr, &data); err != nil {6 panic(err)7 }8 fmt.Printf("%+v9}

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skipWs

Using AI Code Generation

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1import (2func main() {3 var input = `{"Name":"Wednesday","Age":6,"Parents":["Gomez","Morticia"]}`4 decoder := json.NewDecoder(strings.NewReader(input))5 _, err := decoder.Token()6 if err != nil {7 fmt.Println("Error:", err)8 }9 for decoder.More() {10 err = decoder.Decode(&key)11 if err != nil {12 fmt.Println("Error:", err)13 }14 fmt.Println("Key:", key)15 }16}

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skipWs

Using AI Code Generation

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1import (2func main() {3 json := json.NewDecoder(strings.NewReader(" 1234"))4 json.SkipWs()5 fmt.Println(json.Token())6}

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skipWs

Using AI Code Generation

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1import (2func main() {3 var j = json.NewDecoder([]byte(`{"name":"joe"}`))4 j.Token()5}6import (7func main() {8 var j = json.NewDecoder([]byte(`{"name":"joe"}`))9 j.Token()10}11import (12func main() {13 var j = json.NewDecoder([]byte(`{"name":"joe"}`))14 j.Token()15}16import (17func main() {18 var j = json.NewDecoder([]byte(`{"name":"joe"}`))19 j.Token()20}21import (22func main() {23 var j = json.NewDecoder([]byte(`{"name":"joe"}`))24 j.Token()25}26import (27func main() {28 var j = json.NewDecoder([]byte(`{"name":"joe"}`))29 j.Token()30}31import (32func main() {33 var j = json.NewDecoder([]byte(`{"name":"joe"}`))34 j.Token()35}36import (37func main() {38 var j = json.NewDecoder([]byte(`{"name":"joe"}`))39 j.Token()40}41import (42func main() {43 var j = json.NewDecoder([]byte(`{"name":"joe"}`))44 j.Token()45}

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