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Sample program using picojson library. Note: it seems that there are some memory? issues with \"complex\" structures. So always test your json with the lib before using it within your application.
Revision 0:81c978de0e2b, committed 2011-09-09
- Comitter:
- mimil
- Date:
- Fri Sep 09 13:13:17 2011 +0000
- Commit message:
- first release
Changed in this revision
diff -r 000000000000 -r 81c978de0e2b main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Fri Sep 09 13:13:17 2011 +0000
@@ -0,0 +1,68 @@
+#include "mbed.h"
+#include "picojson.h"
+
+
+void parse() {
+ picojson::value v;
+ const char *json = "{\"string\": \"it works\", \"number\": 3.14, \"integer\":5}";
+
+ string err = picojson::parse(v, json, json + strlen(json));
+ printf("res error? %s\r\n", err.c_str());
+ printf("string =%s\r\n" , v.get("string").get<string>().c_str());
+ printf("number =%f\r\n" , v.get("number").get<double>());
+ printf("integer =%d\r\n" , (int)v.get("integer").get<double>());
+}
+
+void serialize() {
+ picojson::object v;
+ picojson::object inner;
+ string val = "tt";
+
+ v["aa"] = picojson::value(val);
+ v["bb"] = picojson::value(1.66);
+ inner["test"] = picojson::value(true);
+ inner["integer"] = picojson::value(1.0);
+ v["inner"] = picojson::value(inner);
+
+ string str = picojson::value(v).serialize();
+ printf("serialized content = %s\r\n" , str.c_str());
+}
+
+void advanced() {
+ picojson::value v;
+ const char *jsonsoure =
+ "{\"menu\": {"
+ "\"id\": \"f\","
+ "\"popup\": {"
+ " \"menuitem\": ["
+ " {\"v\": \"0\"},"
+ " {\"v\": \"1\"},"
+ " {\"v\": \"2\"}"
+ " ]"
+ " }"
+ "}"
+ "}";
+ char * json = (char*) malloc(strlen(jsonsoure)+1);
+ strcpy(json, jsonsoure);
+ string err = picojson::parse(v, json, json + strlen(json));
+ printf("res error? %s\r\n", err.c_str());
+
+ printf("id =%s\r\n", v.get("menu").get("id").get<string>().c_str());
+
+ picojson::array list = v.get("menu").get("popup").get("menuitem").get<picojson::array>();
+
+ for (picojson::array::iterator iter = list.begin(); iter != list.end(); ++iter) {
+ printf("menu item value =%s\r\n", (*iter).get("v").get<string>().c_str());
+ }
+}
+
+int main() {
+ printf("Starting PicoJSONSample "__TIME__"\r\n");
+ printf(">>> parsing \r\n");
+ parse();
+ printf(">>> serializing \r\n");
+ serialize();
+ printf(">>> advanced parsing \r\n");
+ advanced();
+ printf("Ending PicoJSONSample " __TIME__ "\r\n");
+}
diff -r 000000000000 -r 81c978de0e2b mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Fri Sep 09 13:13:17 2011 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/e2ac27c8e93e
diff -r 000000000000 -r 81c978de0e2b picojson.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/picojson.lib Fri Sep 09 13:13:17 2011 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mimil/code/picojson/#2bb500b021e2