Reduced size by 300 bytes by reusing the JsonPrettyPrint from v3

src/Internals/Prettyfier.cpp

@@ -0,0 +1,85 @@
+/*
+* Arduino JSON library
+* Benoit Blanchon 2014 - MIT License
+*/
+
+#include "../../include/ArduinoJson/Internals/Prettyfier.hpp"
+
+using namespace ArduinoJson::Internals;
+
+size_t Prettyfier::write(uint8_t c) {
+  size_t n = _inString ? handleStringChar(c) : handleMarkupChar(c);
+  _previousChar = c;
+  return n;
+}
+
+inline size_t Prettyfier::handleStringChar(uint8_t c) {
+  bool isQuote = c == '"' && _previousChar != '\\';
+
+  if (isQuote) _inString = false;
+
+  return _sink.write(c);
+}
+
+inline size_t Prettyfier::handleMarkupChar(uint8_t c) {
+  switch (c) {
+    case '{':
+    case '[':
+      return handleBlockOpen(c);
+
+    case '}':
+    case ']':
+      return handleBlockClose(c);
+
+    case ':':
+      return handleColumn();
+
+    case ',':
+      return handleComma();
+
+    case '"':
+      return handleQuoteOpen();
+
+    default:
+      return handleNormalChar(c);
+  }
+}
+
+inline size_t Prettyfier::handleBlockOpen(uint8_t c) {
+  return indentIfNeeded() + _sink.write(c);
+}
+
+inline size_t Prettyfier::handleBlockClose(uint8_t c) {
+  return unindentIfNeeded() + _sink.write(c);
+}
+
+inline size_t Prettyfier::handleColumn() {
+  return _sink.write(':') + _sink.write(' ');
+}
+
+inline size_t Prettyfier::handleComma() {
+  return _sink.write(',') + _sink.println();
+}
+
+inline size_t Prettyfier::handleQuoteOpen() {
+  _inString = true;
+  return indentIfNeeded() + _sink.write('"');
+}
+
+inline size_t Prettyfier::handleNormalChar(uint8_t c) {
+  return indentIfNeeded() + _sink.write(c);
+}
+
+size_t Prettyfier::indentIfNeeded() {
+  if (!inEmptyBlock()) return 0;
+
+  _sink.indent();
+  return _sink.println();
+}
+
+size_t Prettyfier::unindentIfNeeded() {
+  if (inEmptyBlock()) return 0;
+
+  _sink.unindent();
+  return _sink.println();
+}