Lawrence Lee / MbedJSONValue_v102

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Fork of MbedJSONValue_copy by Lawrence Lee

MbedJSONValue.cpp@6:f8bec9cada34, 2016-04-05 (annotated)

Committer:
MidnightCow
Date:
Tue Apr 05 11:37:53 2016 +0000
Revision:
6:f8bec9cada34
Parent:
5:e15fd7be9e74
Child:
7:62ce68f5a38c
1st Release

; - MbedJson Modified (Dynamic alloc)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
samux 0:0cf0e27feaad 1 #include "MbedJSONValue.h"
samux 0:0cf0e27feaad 2
samux 0:0cf0e27feaad 3 # include <stdlib.h>
samux 0:0cf0e27feaad 4 # include <stdio.h>
samux 0:0cf0e27feaad 5
MidnightCow 6:f8bec9cada34 6 bool default_json_cb(void* param)
MidnightCow 6:f8bec9cada34 7 {
MidnightCow 6:f8bec9cada34 8 printf("No callback function\n");
MidnightCow 6:f8bec9cada34 9 return false;
MidnightCow 6:f8bec9cada34 10 }
MidnightCow 6:f8bec9cada34 11
MidnightCow 6:f8bec9cada34 12
samux 0:0cf0e27feaad 13 // Clean up
samux 0:0cf0e27feaad 14 void MbedJSONValue::clean() {
samux 0:0cf0e27feaad 15 switch (_type) {
samux 0:0cf0e27feaad 16 case TypeString:
samux 0:0cf0e27feaad 17 delete _value.asString;
samux 0:0cf0e27feaad 18 break;
samux 0:0cf0e27feaad 19 case TypeArray:
MidnightCow 6:f8bec9cada34 20 //for (int i = 0; i < index_array; i++)
MidnightCow 6:f8bec9cada34 21 //delete array[i];
samux 0:0cf0e27feaad 22 index_array = 0;
samux 0:0cf0e27feaad 23 break;
samux 0:0cf0e27feaad 24 case TypeObject:
samux 0:0cf0e27feaad 25 for (int i = 0; i < index_token; i++) {
samux 0:0cf0e27feaad 26 delete token[i];
samux 0:0cf0e27feaad 27 delete token_name[i];
samux 0:0cf0e27feaad 28 }
samux 0:0cf0e27feaad 29 index_token = 0;
samux 0:0cf0e27feaad 30 break;
samux 0:0cf0e27feaad 31 default:
samux 0:0cf0e27feaad 32 break;
samux 0:0cf0e27feaad 33 }
samux 0:0cf0e27feaad 34 _type = TypeNull;
samux 0:0cf0e27feaad 35 _type = TypeNull;
samux 0:0cf0e27feaad 36 }
samux 0:0cf0e27feaad 37
samux 0:0cf0e27feaad 38 bool MbedJSONValue::hasMember(char * name)
samux 0:0cf0e27feaad 39 {
samux 0:0cf0e27feaad 40 for(int i = 0; i < index_token; i++)
samux 0:0cf0e27feaad 41 if( !strcmp(name, (*(token_name[i])).c_str() ))
samux 0:0cf0e27feaad 42 return true;
samux 0:0cf0e27feaad 43 return false;
samux 0:0cf0e27feaad 44 }
samux 0:0cf0e27feaad 45
samux 0:0cf0e27feaad 46
samux 0:0cf0e27feaad 47 void copy(const std::string& s, std::back_insert_iterator<std::string> oi) {
samux 0:0cf0e27feaad 48 std::copy(s.begin(), s.end(), oi);
samux 0:0cf0e27feaad 49 }
samux 0:0cf0e27feaad 50
samux 0:0cf0e27feaad 51 void serialize_str(const std::string& s, std::back_insert_iterator<std::string> oi) {
samux 0:0cf0e27feaad 52 *oi++ = '"';
samux 0:0cf0e27feaad 53 for (std::string::const_iterator i = s.begin(); i != s.end(); ++i) {
samux 0:0cf0e27feaad 54 switch (*i) {
samux 0:0cf0e27feaad 55 #define MAP(val, sym) case val: copy(sym, oi); break
samux 0:0cf0e27feaad 56 MAP('"', "\\\"");
samux 0:0cf0e27feaad 57 MAP('\\', "\\\\");
samux 0:0cf0e27feaad 58 MAP('/', "\\/");
samux 0:0cf0e27feaad 59 MAP('\b', "\\b");
samux 0:0cf0e27feaad 60 MAP('\f', "\\f");
samux 0:0cf0e27feaad 61 MAP('\n', "\\n");
samux 0:0cf0e27feaad 62 MAP('\r', "\\r");
samux 0:0cf0e27feaad 63 MAP('\t', "\\t");
samux 0:0cf0e27feaad 64 #undef MAP
samux 0:0cf0e27feaad 65 default:
samux 0:0cf0e27feaad 66 if ((unsigned char)*i < 0x20 || *i == 0x7f) {
samux 0:0cf0e27feaad 67 char buf[7];
samux 0:0cf0e27feaad 68 sprintf(buf, "\\u%04x", *i & 0xff);
samux 0:0cf0e27feaad 69 copy(buf, buf + 6, oi);
samux 0:0cf0e27feaad 70 } else {
samux 0:0cf0e27feaad 71 *oi++ = *i;
samux 0:0cf0e27feaad 72 }
samux 0:0cf0e27feaad 73 break;
samux 0:0cf0e27feaad 74 }
samux 0:0cf0e27feaad 75 }
samux 0:0cf0e27feaad 76 *oi++ = '"';
samux 0:0cf0e27feaad 77 }
samux 0:0cf0e27feaad 78
samux 0:0cf0e27feaad 79 std::string MbedJSONValue::serialize(){
samux 0:0cf0e27feaad 80 std::string s;
samux 0:0cf0e27feaad 81 serialize(std::back_inserter(s));
samux 0:0cf0e27feaad 82 return s;
samux 0:0cf0e27feaad 83 }
samux 0:0cf0e27feaad 84
samux 0:0cf0e27feaad 85 std::string MbedJSONValue::to_str(){
samux 0:0cf0e27feaad 86 switch (_type) {
samux 0:0cf0e27feaad 87 case TypeNull:
samux 0:0cf0e27feaad 88 return "null";
samux 0:0cf0e27feaad 89 case TypeBoolean:
samux 0:0cf0e27feaad 90 return _value.asBool ? "true" : "false";
samux 0:0cf0e27feaad 91 case TypeInt: {
samux 0:0cf0e27feaad 92 char buf[10];
samux 0:0cf0e27feaad 93 sprintf(buf, "%d", _value.asInt);
samux 0:0cf0e27feaad 94 return buf;
samux 0:0cf0e27feaad 95 }
samux 0:0cf0e27feaad 96 case TypeDouble: {
samux 0:0cf0e27feaad 97 char buf[10];
samux 0:0cf0e27feaad 98 sprintf(buf, "%f", _value.asDouble);
samux 0:0cf0e27feaad 99 return buf;
samux 0:0cf0e27feaad 100 }
samux 0:0cf0e27feaad 101 default:
samux 0:0cf0e27feaad 102 break;
samux 0:0cf0e27feaad 103 }
samux 0:0cf0e27feaad 104 return NULL;
samux 0:0cf0e27feaad 105 }
samux 0:0cf0e27feaad 106
samux 0:0cf0e27feaad 107
samux 0:0cf0e27feaad 108
samux 0:0cf0e27feaad 109 void MbedJSONValue::serialize(std::back_insert_iterator<std::string> oi) {
MidnightCow 6:f8bec9cada34 110 printf("SP:%X _type=%d, index=%d\r\n",__current_sp(),_type, index_token);
MidnightCow 6:f8bec9cada34 111
samux 0:0cf0e27feaad 112 switch (_type) {
samux 0:0cf0e27feaad 113 case TypeString:
MidnightCow 6:f8bec9cada34 114 printf("typestring\r\n");
samux 0:0cf0e27feaad 115 serialize_str(*_value.asString, oi);
samux 0:0cf0e27feaad 116 break;
samux 0:0cf0e27feaad 117 case TypeArray: {
MidnightCow 6:f8bec9cada34 118 printf("typearray\r\n");
samux 0:0cf0e27feaad 119 *oi++ = '[';
samux 0:0cf0e27feaad 120 for (int i = 0; i < index_array; i++) {
samux 0:0cf0e27feaad 121 if (i)
samux 0:0cf0e27feaad 122 *oi++ = ',';
samux 0:0cf0e27feaad 123 (*this)[i].serialize(oi);
samux 0:0cf0e27feaad 124 }
samux 0:0cf0e27feaad 125 *oi++ = ']';
samux 0:0cf0e27feaad 126 break;
samux 0:0cf0e27feaad 127 }
samux 0:0cf0e27feaad 128 case TypeObject: {
MidnightCow 6:f8bec9cada34 129 printf("typeObject\r\n");
samux 0:0cf0e27feaad 130 *oi++ = '{';
samux 0:0cf0e27feaad 131 for (int i = 0; i < index_token; i++) {
MidnightCow 6:f8bec9cada34 132 printf("i=%d ",i);
samux 0:0cf0e27feaad 133 if (i)
samux 0:0cf0e27feaad 134 *oi++ = ',';
MidnightCow 6:f8bec9cada34 135 printf("token_name[%d]=%s\r\n",i,token_name[i]->c_str());
samux 0:0cf0e27feaad 136 serialize_str(*(token_name[i]), oi);
samux 0:0cf0e27feaad 137 *oi++ = ':';
samux 0:0cf0e27feaad 138 (*(token[i])).serialize(oi);
samux 0:0cf0e27feaad 139 }
samux 0:0cf0e27feaad 140 *oi++ = '}';
samux 0:0cf0e27feaad 141 break;
samux 0:0cf0e27feaad 142 }
samux 0:0cf0e27feaad 143 default:
MidnightCow 6:f8bec9cada34 144 printf("default\r\n");
samux 0:0cf0e27feaad 145 copy(to_str(), oi);
samux 0:0cf0e27feaad 146 break;
samux 0:0cf0e27feaad 147 }
samux 0:0cf0e27feaad 148 }
samux 0:0cf0e27feaad 149
samux 0:0cf0e27feaad 150
samux 0:0cf0e27feaad 151
samux 0:0cf0e27feaad 152 MbedJSONValue& MbedJSONValue::operator[](int i) {
samux 0:0cf0e27feaad 153 _type = TypeArray;
MidnightCow 6:f8bec9cada34 154 //if (i < NB_TOKEN && index_array == i ) {
MidnightCow 6:f8bec9cada34 155 if( index_array == i){
samux 0:0cf0e27feaad 156 #ifdef DEBUG
samux 0:0cf0e27feaad 157 printf("will add an element to the array\r\n");
samux 0:0cf0e27feaad 158 #endif
MidnightCow 6:f8bec9cada34 159 //array[i] = new MbedJSONValue();
MidnightCow 6:f8bec9cada34 160 //array.push_back(new MbedJSONValue());
MidnightCow 6:f8bec9cada34 161 token.push_back(new MbedJSONValue());
samux 0:0cf0e27feaad 162 index_array++;
MidnightCow 6:f8bec9cada34 163 //return *(array[i]);
MidnightCow 6:f8bec9cada34 164 return *(token[i]);
samux 0:0cf0e27feaad 165 }
MidnightCow 6:f8bec9cada34 166 //if (i < NB_TOKEN && index_array > i)
MidnightCow 6:f8bec9cada34 167 if(index_array > i)
MidnightCow 6:f8bec9cada34 168 // return *(array[i]);
MidnightCow 6:f8bec9cada34 169 return *(token[i]);
samux 0:0cf0e27feaad 170
samux 0:0cf0e27feaad 171 //if the user is not doing something wrong, this code is never executed!!
samux 0:0cf0e27feaad 172 return *(new MbedJSONValue());
MidnightCow 6:f8bec9cada34 173 //return 0;
samux 0:0cf0e27feaad 174 }
samux 0:0cf0e27feaad 175
samux 0:0cf0e27feaad 176 MbedJSONValue& MbedJSONValue::operator[](std::string k) {
samux 0:0cf0e27feaad 177 _type = TypeObject;
samux 0:0cf0e27feaad 178 for (int i = 0; i < index_token; i++) {
samux 0:0cf0e27feaad 179 #ifdef DEBUG
samux 0:0cf0e27feaad 180 printf("k: %s\r\n", k.c_str());
samux 0:0cf0e27feaad 181 printf("str: %s\r\n", token_name[i]->c_str());
samux 0:0cf0e27feaad 182 #endif
samux 0:0cf0e27feaad 183 //existing token
MidnightCow 6:f8bec9cada34 184
samux 0:0cf0e27feaad 185 if (!strcmp(k.c_str(), token_name[i]->c_str())) {
samux 0:0cf0e27feaad 186 #ifdef DEBUG
samux 0:0cf0e27feaad 187 printf("token found: %d\r\n", i);
samux 0:0cf0e27feaad 188 #endif
samux 0:0cf0e27feaad 189 return *(token[i]);
samux 0:0cf0e27feaad 190 }
samux 0:0cf0e27feaad 191 }
samux 0:0cf0e27feaad 192
MidnightCow 6:f8bec9cada34 193 //if(index_token >= NB_TOKEN)
MidnightCow 6:f8bec9cada34 194 // index_token = NB_TOKEN - 1;
samux 0:0cf0e27feaad 195 //non existing token
MidnightCow 6:f8bec9cada34 196 //token_name[index_token] = new std::string(k);
MidnightCow 6:f8bec9cada34 197 token_name.push_back(new std::string(k));
MidnightCow 6:f8bec9cada34 198 printf("New token_name[%d]=%X, %s\r\n", index_token, token_name[index_token], token_name[index_token]->c_str());
MidnightCow 6:f8bec9cada34 199 //token[index_token] = new MbedJSONValue();
MidnightCow 6:f8bec9cada34 200 token.push_back(new MbedJSONValue());
MidnightCow 6:f8bec9cada34 201 printf("New token[%d]=%X, %d\r\n", index_token, token[index_token], token[index_token]->getType());
samux 0:0cf0e27feaad 202 index_token++;
samux 0:0cf0e27feaad 203 return *(token[index_token - 1]);
samux 0:0cf0e27feaad 204 }
samux 0:0cf0e27feaad 205
samux 0:0cf0e27feaad 206 MbedJSONValue& MbedJSONValue::operator[](std::string k) const
samux 0:0cf0e27feaad 207 {
samux 0:0cf0e27feaad 208 for (int i = 0; i < index_token; i++) {
samux 0:0cf0e27feaad 209 #ifdef DEBUG
samux 0:0cf0e27feaad 210 printf("k: %s\r\n", k.c_str());
MidnightCow 6:f8bec9cada34 211 //printf("str: %s\r\n", token_name[i]->c_str());
samux 0:0cf0e27feaad 212 #endif
MidnightCow 6:f8bec9cada34 213 printf("[%s]", k.c_str());
MidnightCow 6:f8bec9cada34 214 printf(" comp ");
MidnightCow 6:f8bec9cada34 215 printf("[%s]\r\n", token_name[i]->c_str());
samux 0:0cf0e27feaad 216 if (!strcmp(k.c_str(), token_name[i]->c_str())) {
samux 0:0cf0e27feaad 217 #ifdef DEBUG
samux 0:0cf0e27feaad 218 printf("token found: %d\r\n", i);
samux 0:0cf0e27feaad 219 #endif
samux 0:0cf0e27feaad 220 return *(token[i]);
samux 0:0cf0e27feaad 221 }
samux 0:0cf0e27feaad 222 }
samux 0:0cf0e27feaad 223
samux 0:0cf0e27feaad 224 //if the user is not doing something wrong, this code is never executed!!
samux 0:0cf0e27feaad 225 return *(new MbedJSONValue());
MidnightCow 6:f8bec9cada34 226 //return 0;
samux 0:0cf0e27feaad 227 }
samux 0:0cf0e27feaad 228
samux 0:0cf0e27feaad 229
samux 0:0cf0e27feaad 230 // Operators
samux 0:0cf0e27feaad 231 MbedJSONValue& MbedJSONValue::operator=(MbedJSONValue const& rhs) {
MidnightCow 6:f8bec9cada34 232 //printf("=json\r\n");
samux 0:0cf0e27feaad 233 if (this != &rhs) {
samux 0:0cf0e27feaad 234 clean();
samux 0:0cf0e27feaad 235 _type = rhs._type;
samux 0:0cf0e27feaad 236 switch (_type) {
samux 0:0cf0e27feaad 237 case TypeBoolean:
samux 0:0cf0e27feaad 238 _value.asBool = rhs._value.asBool;
samux 0:0cf0e27feaad 239 break;
samux 0:0cf0e27feaad 240 case TypeInt:
samux 0:0cf0e27feaad 241 _value.asInt = rhs._value.asInt;
samux 0:0cf0e27feaad 242 break;
samux 0:0cf0e27feaad 243 case TypeDouble:
samux 0:0cf0e27feaad 244 _value.asDouble = rhs._value.asDouble;
samux 0:0cf0e27feaad 245 break;
samux 0:0cf0e27feaad 246 case TypeString:
MidnightCow 6:f8bec9cada34 247 //printf("=json=%s\r\n",rhs._value.asString->c_str());
samux 0:0cf0e27feaad 248 _value.asString = new std::string(*rhs._value.asString);
samux 0:0cf0e27feaad 249 break;
samux 0:0cf0e27feaad 250 case TypeArray:
samux 0:0cf0e27feaad 251 for (int i = 0; i < rhs.index_array; i++)
samux 0:0cf0e27feaad 252 (*this)[i] = rhs[i];
samux 0:0cf0e27feaad 253 case TypeObject:
samux 0:0cf0e27feaad 254 for (int i = 0; i < rhs.index_token; i++)
samux 0:0cf0e27feaad 255 (*this)[*(rhs.token_name[i])] = rhs[*(rhs.token_name[i])];
samux 0:0cf0e27feaad 256 default:
samux 0:0cf0e27feaad 257 break;
samux 0:0cf0e27feaad 258 }
samux 0:0cf0e27feaad 259 }
samux 0:0cf0e27feaad 260 return *this;
samux 0:0cf0e27feaad 261 }
samux 0:0cf0e27feaad 262
samux 0:0cf0e27feaad 263
samux 0:0cf0e27feaad 264 // Works for strings, arrays, and structs.
samux 0:0cf0e27feaad 265 int MbedJSONValue::size() const {
samux 0:0cf0e27feaad 266 switch (_type) {
samux 0:0cf0e27feaad 267 case TypeString:
samux 0:0cf0e27feaad 268 return int(_value.asString->size());
samux 0:0cf0e27feaad 269 case TypeArray:
samux 0:0cf0e27feaad 270 return index_array;
samux 0:0cf0e27feaad 271 case TypeObject:
samux 0:0cf0e27feaad 272 return index_token;
samux 0:0cf0e27feaad 273 default:
samux 0:0cf0e27feaad 274 break;
samux 0:0cf0e27feaad 275 }
samux 0:0cf0e27feaad 276 return -1;
samux 0:0cf0e27feaad 277 }
samux 0:0cf0e27feaad 278
MidnightCow 6:f8bec9cada34 279