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MbedJSONValuex
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MbedJSONValue
by 
Samuel Mokrani
MbedJSONValue.cpp@3:f2ffae08b963, 2011-09-22 (annotated)
- Committer:
- samux
- Date:
- Thu Sep 22 10:55:41 2011 +0000
- Revision:
- 3:f2ffae08b963
- Parent:
- 2:e39bfa3e917d
- Child:
- 5:c5ca009a95e3
Who changed what in which revision?
| User | Revision | Line number | New 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 | |
| samux | 0:0cf0e27feaad | 6 | // Clean up |
| samux | 0:0cf0e27feaad | 7 | void MbedJSONValue::clean() { |
| samux | 0:0cf0e27feaad | 8 | switch (_type) { |
| samux | 0:0cf0e27feaad | 9 | case TypeString: |
| samux | 0:0cf0e27feaad | 10 | delete _value.asString; |
| samux | 0:0cf0e27feaad | 11 | break; |
| samux | 0:0cf0e27feaad | 12 | case TypeArray: |
| samux | 0:0cf0e27feaad | 13 | for (int i = 0; i < index_array; i++) |
| samux | 0:0cf0e27feaad | 14 | delete array[i]; |
| samux | 0:0cf0e27feaad | 15 | index_array = 0; |
| samux | 0:0cf0e27feaad | 16 | break; |
| samux | 0:0cf0e27feaad | 17 | case TypeObject: |
| samux | 0:0cf0e27feaad | 18 | for (int i = 0; i < index_token; i++) { |
| samux | 0:0cf0e27feaad | 19 | delete token[i]; |
| samux | 0:0cf0e27feaad | 20 | delete token_name[i]; |
| samux | 0:0cf0e27feaad | 21 | } |
| samux | 0:0cf0e27feaad | 22 | index_token = 0; |
| samux | 0:0cf0e27feaad | 23 | break; |
| samux | 0:0cf0e27feaad | 24 | default: |
| samux | 0:0cf0e27feaad | 25 | break; |
| samux | 0:0cf0e27feaad | 26 | } |
| samux | 0:0cf0e27feaad | 27 | _type = TypeNull; |
| samux | 0:0cf0e27feaad | 28 | _type = TypeNull; |
| samux | 0:0cf0e27feaad | 29 | } |
| samux | 0:0cf0e27feaad | 30 | |
| samux | 0:0cf0e27feaad | 31 | bool MbedJSONValue::hasMember(char * name) |
| samux | 0:0cf0e27feaad | 32 | { |
| samux | 0:0cf0e27feaad | 33 | for(int i = 0; i < index_token; i++) |
| samux | 0:0cf0e27feaad | 34 | if( !strcmp(name, (*(token_name[i])).c_str() )) |
| samux | 0:0cf0e27feaad | 35 | return true; |
| samux | 0:0cf0e27feaad | 36 | return false; |
| samux | 0:0cf0e27feaad | 37 | } |
| samux | 0:0cf0e27feaad | 38 | |
| samux | 0:0cf0e27feaad | 39 | |
| samux | 0:0cf0e27feaad | 40 | void copy(const std::string& s, std::back_insert_iterator<std::string> oi) { |
| samux | 0:0cf0e27feaad | 41 | std::copy(s.begin(), s.end(), oi); |
| samux | 0:0cf0e27feaad | 42 | } |
| samux | 0:0cf0e27feaad | 43 | |
| samux | 0:0cf0e27feaad | 44 | void serialize_str(const std::string& s, std::back_insert_iterator<std::string> oi) { |
| samux | 0:0cf0e27feaad | 45 | *oi++ = '"'; |
| samux | 0:0cf0e27feaad | 46 | for (std::string::const_iterator i = s.begin(); i != s.end(); ++i) { |
| samux | 0:0cf0e27feaad | 47 | switch (*i) { |
| samux | 0:0cf0e27feaad | 48 | #define MAP(val, sym) case val: copy(sym, oi); break |
| samux | 0:0cf0e27feaad | 49 | MAP('"', "\\\""); |
| samux | 0:0cf0e27feaad | 50 | MAP('\\', "\\\\"); |
| samux | 0:0cf0e27feaad | 51 | MAP('/', "\\/"); |
| samux | 0:0cf0e27feaad | 52 | MAP('\b', "\\b"); |
| samux | 0:0cf0e27feaad | 53 | MAP('\f', "\\f"); |
| samux | 0:0cf0e27feaad | 54 | MAP('\n', "\\n"); |
| samux | 0:0cf0e27feaad | 55 | MAP('\r', "\\r"); |
| samux | 0:0cf0e27feaad | 56 | MAP('\t', "\\t"); |
| samux | 0:0cf0e27feaad | 57 | #undef MAP |
| samux | 0:0cf0e27feaad | 58 | default: |
| samux | 0:0cf0e27feaad | 59 | if ((unsigned char)*i < 0x20 || *i == 0x7f) { |
| samux | 0:0cf0e27feaad | 60 | char buf[7]; |
| samux | 0:0cf0e27feaad | 61 | sprintf(buf, "\\u%04x", *i & 0xff); |
| samux | 0:0cf0e27feaad | 62 | copy(buf, buf + 6, oi); |
| samux | 0:0cf0e27feaad | 63 | } else { |
| samux | 0:0cf0e27feaad | 64 | *oi++ = *i; |
| samux | 0:0cf0e27feaad | 65 | } |
| samux | 0:0cf0e27feaad | 66 | break; |
| samux | 0:0cf0e27feaad | 67 | } |
| samux | 0:0cf0e27feaad | 68 | } |
| samux | 0:0cf0e27feaad | 69 | *oi++ = '"'; |
| samux | 0:0cf0e27feaad | 70 | } |
| samux | 0:0cf0e27feaad | 71 | |
| samux | 0:0cf0e27feaad | 72 | std::string MbedJSONValue::serialize(){ |
| samux | 0:0cf0e27feaad | 73 | std::string s; |
| samux | 0:0cf0e27feaad | 74 | serialize(std::back_inserter(s)); |
| samux | 0:0cf0e27feaad | 75 | return s; |
| samux | 0:0cf0e27feaad | 76 | } |
| samux | 0:0cf0e27feaad | 77 | |
| samux | 0:0cf0e27feaad | 78 | std::string MbedJSONValue::to_str(){ |
| samux | 0:0cf0e27feaad | 79 | switch (_type) { |
| samux | 0:0cf0e27feaad | 80 | case TypeNull: |
| samux | 0:0cf0e27feaad | 81 | return "null"; |
| samux | 0:0cf0e27feaad | 82 | case TypeBoolean: |
| samux | 0:0cf0e27feaad | 83 | return _value.asBool ? "true" : "false"; |
| samux | 0:0cf0e27feaad | 84 | case TypeInt: { |
| samux | 0:0cf0e27feaad | 85 | char buf[10]; |
| samux | 0:0cf0e27feaad | 86 | sprintf(buf, "%d", _value.asInt); |
| samux | 0:0cf0e27feaad | 87 | return buf; |
| samux | 0:0cf0e27feaad | 88 | } |
| samux | 0:0cf0e27feaad | 89 | case TypeDouble: { |
| samux | 0:0cf0e27feaad | 90 | char buf[10]; |
| samux | 0:0cf0e27feaad | 91 | sprintf(buf, "%f", _value.asDouble); |
| samux | 0:0cf0e27feaad | 92 | return buf; |
| samux | 0:0cf0e27feaad | 93 | } |
| samux | 0:0cf0e27feaad | 94 | default: |
| samux | 0:0cf0e27feaad | 95 | break; |
| samux | 0:0cf0e27feaad | 96 | } |
| samux | 0:0cf0e27feaad | 97 | return NULL; |
| samux | 0:0cf0e27feaad | 98 | } |
| samux | 0:0cf0e27feaad | 99 | |
| samux | 0:0cf0e27feaad | 100 | |
| samux | 0:0cf0e27feaad | 101 | |
| samux | 0:0cf0e27feaad | 102 | void MbedJSONValue::serialize(std::back_insert_iterator<std::string> oi) { |
| samux | 0:0cf0e27feaad | 103 | switch (_type) { |
| samux | 0:0cf0e27feaad | 104 | case TypeString: |
| samux | 0:0cf0e27feaad | 105 | serialize_str(*_value.asString, oi); |
| samux | 0:0cf0e27feaad | 106 | break; |
| samux | 0:0cf0e27feaad | 107 | case TypeArray: { |
| samux | 0:0cf0e27feaad | 108 | *oi++ = '['; |
| samux | 0:0cf0e27feaad | 109 | for (int i = 0; i < index_array; i++) { |
| samux | 0:0cf0e27feaad | 110 | if (i) |
| samux | 0:0cf0e27feaad | 111 | *oi++ = ','; |
| samux | 0:0cf0e27feaad | 112 | (*this)[i].serialize(oi); |
| samux | 0:0cf0e27feaad | 113 | } |
| samux | 0:0cf0e27feaad | 114 | *oi++ = ']'; |
| samux | 0:0cf0e27feaad | 115 | break; |
| samux | 0:0cf0e27feaad | 116 | } |
| samux | 0:0cf0e27feaad | 117 | case TypeObject: { |
| samux | 0:0cf0e27feaad | 118 | *oi++ = '{'; |
| samux | 0:0cf0e27feaad | 119 | for (int i = 0; i < index_token; i++) { |
| samux | 0:0cf0e27feaad | 120 | if (i) |
| samux | 0:0cf0e27feaad | 121 | *oi++ = ','; |
| samux | 0:0cf0e27feaad | 122 | serialize_str(*(token_name[i]), oi); |
| samux | 0:0cf0e27feaad | 123 | *oi++ = ':'; |
| samux | 0:0cf0e27feaad | 124 | (*(token[i])).serialize(oi); |
| samux | 0:0cf0e27feaad | 125 | } |
| samux | 0:0cf0e27feaad | 126 | *oi++ = '}'; |
| samux | 0:0cf0e27feaad | 127 | break; |
| samux | 0:0cf0e27feaad | 128 | } |
| samux | 0:0cf0e27feaad | 129 | default: |
| samux | 0:0cf0e27feaad | 130 | copy(to_str(), oi); |
| samux | 0:0cf0e27feaad | 131 | break; |
| samux | 0:0cf0e27feaad | 132 | } |
| samux | 0:0cf0e27feaad | 133 | } |
| samux | 0:0cf0e27feaad | 134 | |
| samux | 0:0cf0e27feaad | 135 | |
| samux | 0:0cf0e27feaad | 136 | |
| samux | 0:0cf0e27feaad | 137 | MbedJSONValue& MbedJSONValue::operator[](int i) { |
| samux | 0:0cf0e27feaad | 138 | _type = TypeArray; |
| samux | 0:0cf0e27feaad | 139 | if (i < NB_TOKEN && index_array == i ) { |
| samux | 0:0cf0e27feaad | 140 | #ifdef DEBUG |
| samux | 0:0cf0e27feaad | 141 | printf("will add an element to the array\r\n"); |
| samux | 0:0cf0e27feaad | 142 | #endif |
| samux | 0:0cf0e27feaad | 143 | array[i] = new MbedJSONValue(); |
| samux | 0:0cf0e27feaad | 144 | index_array++; |
| samux | 0:0cf0e27feaad | 145 | return *(array[i]); |
| samux | 0:0cf0e27feaad | 146 | } |
| samux | 0:0cf0e27feaad | 147 | if (i < NB_TOKEN && index_array > i) |
| samux | 0:0cf0e27feaad | 148 | return *(array[i]); |
| samux | 0:0cf0e27feaad | 149 | |
| samux | 0:0cf0e27feaad | 150 | //if the user is not doing something wrong, this code is never executed!! |
| samux | 0:0cf0e27feaad | 151 | return *(new MbedJSONValue()); |
| samux | 0:0cf0e27feaad | 152 | } |
| samux | 0:0cf0e27feaad | 153 | |
| samux | 0:0cf0e27feaad | 154 | MbedJSONValue& MbedJSONValue::operator[](std::string k) { |
| samux | 0:0cf0e27feaad | 155 | _type = TypeObject; |
| samux | 0:0cf0e27feaad | 156 | for (int i = 0; i < index_token; i++) { |
| samux | 0:0cf0e27feaad | 157 | #ifdef DEBUG |
| samux | 0:0cf0e27feaad | 158 | printf("k: %s\r\n", k.c_str()); |
| samux | 0:0cf0e27feaad | 159 | printf("str: %s\r\n", token_name[i]->c_str()); |
| samux | 0:0cf0e27feaad | 160 | #endif |
| samux | 0:0cf0e27feaad | 161 | //existing token |
| samux | 0:0cf0e27feaad | 162 | if (!strcmp(k.c_str(), token_name[i]->c_str())) { |
| samux | 0:0cf0e27feaad | 163 | #ifdef DEBUG |
| samux | 0:0cf0e27feaad | 164 | printf("token found: %d\r\n", i); |
| samux | 0:0cf0e27feaad | 165 | #endif |
| samux | 0:0cf0e27feaad | 166 | return *(token[i]); |
| samux | 0:0cf0e27feaad | 167 | } |
| samux | 0:0cf0e27feaad | 168 | } |
| samux | 0:0cf0e27feaad | 169 | |
| samux | 0:0cf0e27feaad | 170 | if(index_token >= NB_TOKEN) |
| samux | 0:0cf0e27feaad | 171 | index_token = NB_TOKEN - 1; |
| samux | 0:0cf0e27feaad | 172 | //non existing token |
| samux | 0:0cf0e27feaad | 173 | token_name[index_token] = new std::string(k); |
| samux | 0:0cf0e27feaad | 174 | token[index_token] = new MbedJSONValue(); |
| samux | 0:0cf0e27feaad | 175 | index_token++; |
| samux | 0:0cf0e27feaad | 176 | return *(token[index_token - 1]); |
| samux | 0:0cf0e27feaad | 177 | } |
| samux | 0:0cf0e27feaad | 178 | |
| samux | 0:0cf0e27feaad | 179 | MbedJSONValue& MbedJSONValue::operator[](std::string k) const |
| samux | 0:0cf0e27feaad | 180 | { |
| samux | 0:0cf0e27feaad | 181 | for (int i = 0; i < index_token; i++) { |
| samux | 0:0cf0e27feaad | 182 | #ifdef DEBUG |
| samux | 0:0cf0e27feaad | 183 | printf("k: %s\r\n", k.c_str()); |
| samux | 0:0cf0e27feaad | 184 | printf("str: %s\r\n", token_name[i]->c_str()); |
| samux | 0:0cf0e27feaad | 185 | #endif |
| samux | 0:0cf0e27feaad | 186 | if (!strcmp(k.c_str(), token_name[i]->c_str())) { |
| samux | 0:0cf0e27feaad | 187 | #ifdef DEBUG |
| samux | 0:0cf0e27feaad | 188 | printf("token found: %d\r\n", i); |
| samux | 0:0cf0e27feaad | 189 | #endif |
| samux | 0:0cf0e27feaad | 190 | return *(token[i]); |
| samux | 0:0cf0e27feaad | 191 | } |
| samux | 0:0cf0e27feaad | 192 | } |
| samux | 0:0cf0e27feaad | 193 | |
| samux | 0:0cf0e27feaad | 194 | //if the user is not doing something wrong, this code is never executed!! |
| samux | 0:0cf0e27feaad | 195 | return *(new MbedJSONValue()); |
| samux | 0:0cf0e27feaad | 196 | } |
| samux | 0:0cf0e27feaad | 197 | |
| samux | 0:0cf0e27feaad | 198 | |
| samux | 0:0cf0e27feaad | 199 | // Operators |
| samux | 0:0cf0e27feaad | 200 | MbedJSONValue& MbedJSONValue::operator=(MbedJSONValue const& rhs) { |
| samux | 0:0cf0e27feaad | 201 | if (this != &rhs) { |
| samux | 0:0cf0e27feaad | 202 | clean(); |
| samux | 0:0cf0e27feaad | 203 | _type = rhs._type; |
| samux | 0:0cf0e27feaad | 204 | switch (_type) { |
| samux | 0:0cf0e27feaad | 205 | case TypeBoolean: |
| samux | 0:0cf0e27feaad | 206 | _value.asBool = rhs._value.asBool; |
| samux | 0:0cf0e27feaad | 207 | break; |
| samux | 0:0cf0e27feaad | 208 | case TypeInt: |
| samux | 0:0cf0e27feaad | 209 | _value.asInt = rhs._value.asInt; |
| samux | 0:0cf0e27feaad | 210 | break; |
| samux | 0:0cf0e27feaad | 211 | case TypeDouble: |
| samux | 0:0cf0e27feaad | 212 | _value.asDouble = rhs._value.asDouble; |
| samux | 0:0cf0e27feaad | 213 | break; |
| samux | 0:0cf0e27feaad | 214 | case TypeString: |
| samux | 0:0cf0e27feaad | 215 | _value.asString = new std::string(*rhs._value.asString); |
| samux | 0:0cf0e27feaad | 216 | break; |
| samux | 0:0cf0e27feaad | 217 | case TypeArray: |
| samux | 0:0cf0e27feaad | 218 | for (int i = 0; i < rhs.index_array; i++) |
| samux | 0:0cf0e27feaad | 219 | (*this)[i] = rhs[i]; |
| samux | 0:0cf0e27feaad | 220 | case TypeObject: |
| samux | 0:0cf0e27feaad | 221 | for (int i = 0; i < rhs.index_token; i++) |
| samux | 0:0cf0e27feaad | 222 | (*this)[*(rhs.token_name[i])] = rhs[*(rhs.token_name[i])]; |
| samux | 0:0cf0e27feaad | 223 | default: |
| samux | 0:0cf0e27feaad | 224 | break; |
| samux | 0:0cf0e27feaad | 225 | } |
| samux | 0:0cf0e27feaad | 226 | } |
| samux | 0:0cf0e27feaad | 227 | return *this; |
| samux | 0:0cf0e27feaad | 228 | } |
| samux | 0:0cf0e27feaad | 229 | |
| samux | 0:0cf0e27feaad | 230 | |
| samux | 0:0cf0e27feaad | 231 | // Works for strings, arrays, and structs. |
| samux | 0:0cf0e27feaad | 232 | int MbedJSONValue::size() const { |
| samux | 0:0cf0e27feaad | 233 | switch (_type) { |
| samux | 0:0cf0e27feaad | 234 | case TypeString: |
| samux | 0:0cf0e27feaad | 235 | return int(_value.asString->size()); |
| samux | 0:0cf0e27feaad | 236 | case TypeArray: |
| samux | 0:0cf0e27feaad | 237 | return index_array; |
| samux | 0:0cf0e27feaad | 238 | case TypeObject: |
| samux | 0:0cf0e27feaad | 239 | return index_token; |
| samux | 0:0cf0e27feaad | 240 | default: |
| samux | 0:0cf0e27feaad | 241 | break; |
| samux | 0:0cf0e27feaad | 242 | } |
| samux | 0:0cf0e27feaad | 243 | return -1; |
| samux | 0:0cf0e27feaad | 244 | } |
| samux | 0:0cf0e27feaad | 245 |