Reduced size by 300 bytes by reusing the JsonPrettyPrint from v3

include/ArduinoJson/Internals/Prettyfier.hpp

@@ -0,0 +1,43 @@
+/*
+* Arduino JSON library
+* Benoit Blanchon 2014 - MIT License
+*/
+
+#pragma once
+
+#include "IndentedPrint.hpp"
+
+namespace ArduinoJson {
+namespace Internals {
+
+// Converts a compact JSON string into an indented one.
+class Prettyfier : public Print {
+ public:
+  Prettyfier(IndentedPrint& p) : _sink(p) {
+    _previousChar = 0;
+    _inString = false;
+  }
+
+  virtual size_t write(uint8_t);
+
+ private:
+  uint8_t _previousChar;
+  IndentedPrint& _sink;
+  bool _inString;
+
+  bool inEmptyBlock() { return _previousChar == '{' || _previousChar == '['; }
+
+  size_t handleStringChar(uint8_t);
+  size_t handleMarkupChar(uint8_t);
+
+  size_t handleBlockClose(uint8_t);
+  size_t handleBlockOpen(uint8_t);
+  size_t handleColumn();
+  size_t handleComma();
+  size_t handleQuoteOpen();
+  size_t handleNormalChar(uint8_t);
+  size_t indentIfNeeded();
+  size_t unindentIfNeeded();
+};
+}
+}