main.cpp

00001 #include "mbed.h"
00002 #include "picojson.h"
00003 
00004 
00005 void parse() {
00006     picojson::value v;
00007     const char *json = "{\"string\": \"it works\", \"number\": 3.14, \"integer\":5}";
00008 
00009     string err = picojson::parse(v, json, json + strlen(json));
00010     printf("res error? %s\r\n", err.c_str());
00011     printf("string =%s\r\n" ,  v.get("string").get<string>().c_str());
00012     printf("number =%f\r\n" ,  v.get("number").get<double>());
00013     printf("integer =%d\r\n" ,  (int)v.get("integer").get<double>());
00014 }
00015 
00016 void serialize() {
00017     picojson::object v;
00018     picojson::object inner;
00019     string val = "tt";
00020 
00021     v["aa"] = picojson::value(val);
00022     v["bb"] = picojson::value(1.66);
00023     inner["test"] =  picojson::value(true);
00024     inner["integer"] =  picojson::value(1.0);
00025     v["inner"] =  picojson::value(inner);
00026 
00027     string str = picojson::value(v).serialize();
00028     printf("serialized content = %s\r\n" ,  str.c_str());
00029 }
00030 
00031 void advanced() {
00032     picojson::value v;
00033     const char *jsonsoure =
00034         "{\"menu\": {"
00035         "\"id\": \"f\","
00036         "\"popup\": {"
00037         "  \"menuitem\": ["
00038         "    {\"v\": \"0\"},"
00039         "    {\"v\": \"1\"},"
00040         "    {\"v\": \"2\"}"
00041         "   ]"
00042         "  }"
00043         "}"
00044         "}";
00045     char * json = (char*) malloc(strlen(jsonsoure)+1);
00046     strcpy(json, jsonsoure);
00047     string err = picojson::parse(v, json, json + strlen(json));
00048     printf("res error? %s\r\n", err.c_str());
00049 
00050     printf("id =%s\r\n", v.get("menu").get("id").get<string>().c_str());
00051 
00052     picojson::array list = v.get("menu").get("popup").get("menuitem").get<picojson::array>();
00053 
00054     for (picojson::array::iterator iter = list.begin(); iter != list.end(); ++iter) {
00055         printf("menu item value =%s\r\n", (*iter).get("v").get<string>().c_str());
00056     }
00057 }
00058 
00059 int main() {
00060     printf("Starting PicoJSONSample "__TIME__"\r\n");
00061     printf(">>> parsing \r\n");
00062     parse();
00063     printf(">>> serializing \r\n");
00064     serialize();
00065     printf(">>> advanced parsing \r\n");
00066     advanced();
00067     printf("Ending PicoJSONSample " __TIME__ "\r\n");
00068 }