Midnight Cow / MbedJSONValue

Dynamic Alloc Remove array Call back function

Dependents:   WIZwiki-REST_mc

Fork of MbedJSONValue 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 
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