Add json_object_value_name().

Author: Barenboim

json_parser.c

@@ -1162,6 +1162,12 @@ const json_value_t *json_object_prev_value(const json_value_t *val,
 	return &list_entry(pos->prev, json_member_t, list)->value;
 }
 
+const char *json_object_value_name(const json_value_t *val,
+								   const json_object_t *obj)
+{
+	return list_entry(val, json_member_t, value)->name;
+}
+
 static const json_value_t *__json_object_insert(const char *name,
 												int type, va_list ap,
 												struct list_head *pos,

json_parser.h

@@ -42,6 +42,8 @@ const char *json_object_prev_name(const char *name,
 								  const json_object_t *obj);
 const json_value_t *json_object_prev_value(const json_value_t *val,
 										   const json_object_t *obj);
+const char *json_object_value_name(const json_value_t *val,
+								   const json_object_t *obj);
 const json_value_t *json_object_append(json_object_t *obj,
 									   const char *name,
 									   int type, ...);