Moved implemntation of operator[] into JsonObject

JsonParser/JsonValue.cpp

@@ -4,22 +4,13 @@
  */
 
 #include <stdlib.h> // for strtol, strtod
+#include <string.h> // for strcmp()
 #include "JsonArray.h"
 #include "JsonObject.h"
 #include "JsonValue.h"
 
 using namespace ArduinoJson::Parser;
 
-JsonValue JsonValue::operator[](int index)
-{
-    return JsonArray(*this)[index];
-}
-
-JsonValue JsonValue::operator[](const char* key)
-{
-    return JsonObject(*this)[key];
-}
-
 JsonValue::operator bool()
 {
     if (!isPrimitive()) return 0;
@@ -52,4 +43,62 @@ JsonValue::operator long()
 JsonValue::operator char*()
 {
     return isString() || isPrimitive() ? getText() : 0;
+}
+
+/*
+* Returns the token for the value associated with the specified key
+*/
+JsonValue JsonValue::operator[](const char* desiredKey)
+{
+    // sanity check
+    if (desiredKey == 0 || !isObject())
+        return null();
+
+    // skip first token, it's the whole object
+    JsonToken runningToken = firstChild();
+
+    // scan each keys
+    for (int i = 0; i < childrenCount() / 2; i++)
+    {
+        // get 'key' token string
+        char* key = runningToken.getText();
+
+        // move to the 'value' token
+        runningToken = runningToken.nextSibling();
+
+        // compare with desired name
+        if (strcmp(desiredKey, key) == 0)
+        {
+            // return the value token that follows the key token
+            return runningToken;
+        }
+
+        // skip nested tokens
+        runningToken = runningToken.nextSibling();
+    }
+
+    // nothing found, return NULL
+    return null();
+}
+
+/*
+* Returns the token for the value at the specified index
+*/
+JsonValue JsonValue::operator[](int index)
+{
+    // sanity check
+    if (index < 0 || !isArray() || index >= childrenCount())
+        return null();
+
+    // skip first token, it's the whole object
+    JsonToken runningToken = firstChild();
+
+    // skip all tokens before the specified index
+    for (int i = 0; i < index; i++)
+    {
+        // move forward: current + nested tokens
+        runningToken = runningToken.nextSibling();
+    }
+
+    return runningToken;
 }