main.cpp

00001 #include "mbed.h"
00002 #include "MbedJSONValue.h"
00003 
00004 /*
00005 * The MbedJSONValue is memory hungry class as I think.
00006 * If your platform has enough SRAM, you can go for it.
00007 * The library itself works fine but user need to caution using it.
00008 * It's fine with this:
00009 *  MbedJSONValue &ele = demo["menu"]["popup"]["menuitem"][i];
00010 * It's big problem with this(without &):
00011 *  MbedJSONValue ele = demo["menu"]["popup"]["menuitem"][i];
00012 */
00013 void parse() {
00014     MbedJSONValue demo;
00015 
00016     const char *json = "{\"string\": \"it works\", \"number\": 3.14, \"integer\":5}";
00017 
00018     parse(demo, json);
00019     printf("string =%s\r\n" , demo["string"].get<string>().c_str());
00020     printf("number =%f\r\n" , demo["number"].get<double>());
00021     printf("integer =%d\r\n" , demo["integer"].get<int>());
00022 }
00023 
00024 void serialize() {
00025     MbedJSONValue v;
00026     MbedJSONValue inner;
00027     string val = "tt";
00028 
00029     v["aa"] = val;
00030     v["bb"] = 1.66;
00031     inner["test"] = true;
00032     inner["integer"] =  1.0;
00033     v["inner"] =  inner;
00034 
00035     string str = v.serialize();
00036     printf("serialized content = %s\r\n" ,  str.c_str());
00037 }
00038 
00039 void advanced() {
00040     MbedJSONValue demo;
00041     const char *jsonsoure =
00042         "{\"menu\": {"
00043         "\"id\": \"f\","
00044         "\"popup\": {"
00045         "  \"menuitem\": ["
00046         "    {\"v\": \"0\"},"
00047         "    {\"v\": \"1\"},"
00048         "    {\"v\": \"2\"}"
00049         "   ]"
00050         "  }"
00051         "}"
00052         "}";
00053 
00054     std::string err;
00055     parse(demo, jsonsoure, jsonsoure + strlen(jsonsoure), &err);
00056     printf("res error? %s\r\n", err.c_str());
00057 
00058     printf("id =%s\r\n", demo["menu"]["id"].get<string>().c_str());
00059 
00060     for (int i = 0; i < demo["menu"]["popup"]["menuitem"].size(); ++i) {
00061         MbedJSONValue &ele = demo["menu"]["popup"]["menuitem"][i];
00062         const string &s = ele["v"].get<string>();
00063 
00064         printf("menu item value =%s\r\n",s.c_str());
00065     }
00066 
00067     printf("serialized content = %s\r\n" , demo.serialize().c_str());
00068 }
00069 
00070 int main() {
00071     printf("Starting MbedJSON\r\n");
00072     printf(">>> parsing \r\n");
00073     parse();
00074     printf(">>> serializing \r\n");
00075     serialize();
00076     printf(">>> advanced parsing \r\n");
00077     advanced();
00078     printf("Ending MbedJSON\r\n");
00079 }