add "newlineOn" and "newlineOff" methods

Author: john

README.md

@@ -78,6 +78,26 @@ Debug.timestampOff();
 Debug.print(DBG_VERBOSE, "i = %d", i); //Output looks like : i = 21 
 ```
 
+### Debug.newlineOn() :
+Calling this function ensures that a newline will be sent at the end of the `Debug.print()` function call;
+By default, a newline is sent
+Return type: void.
+
+Example:
+```
+Debug.newlineOn();
+```
+
+### Debug.newlineOff() :
+Calling this function ensure that a newline will NOT be sent at the end of the `Debug.print()` function call;
+By default a newline is sent. Call this to shut that functionality off.
+Return type: void.
+
+Example:
+```
+Debug.timestampOff();
+```
+
 
 ### Debug.print(int const debug_level, const char * fmt, ...);
 This function prints the message if parameter `debug_level` in the `Debug.print(debug_level, ...)` function call belongs to the range: DBG_ERROR <= debug_level <= (<DBG_LEVEL> that has been set using `setDebugLevel()` function).

src/Arduino_DebugUtils.cpp

@@ -34,6 +34,7 @@ static Stream *  DEFAULT_OUTPUT_STREAM = &Serial;
 
 Arduino_DebugUtils::Arduino_DebugUtils() {
   timestampOff();
+  newlineOn();
   setDebugLevel(DEFAULT_DEBUG_LEVEL);
   setDebugOutputStream(DEFAULT_OUTPUT_STREAM);
 }
@@ -50,6 +51,14 @@ void Arduino_DebugUtils::setDebugOutputStream(Stream * stream) {
   _debug_output_stream = stream;
 }
 
+void Arduino_DebugUtils::newlineOn() {
+    _newline_on = true;
+}
+
+void Arduino_DebugUtils::newlineOff() {
+    _newline_on = false;
+}
+
 void Arduino_DebugUtils::timestampOn() {
   _timestamp_on = true;
 }
@@ -98,7 +107,11 @@ void Arduino_DebugUtils::vPrint(char const * fmt, va_list args) {
 
   vsnprintf(msg_buf, MSG_BUF_SIZE, fmt, args);
 
-  _debug_output_stream->println(msg_buf);
+  if (_newline_on) {
+    _debug_output_stream->println(msg_buf);
+  } else {
+    _debug_output_stream->print(msg_buf);
+  }
 }
 
 void Arduino_DebugUtils::printTimestamp()

src/Arduino_DebugUtils.h

@@ -56,13 +56,17 @@ class Arduino_DebugUtils {
     void timestampOn();
     void timestampOff();
 
+    void newlineOn();
+    void newlineOff();
+
     void print(int const debug_level, const char * fmt, ...);
     void print(int const debug_level, const __FlashStringHelper * fmt, ...);
 
 
   private:
 
     bool      _timestamp_on;
+    bool      _newline_on;
     int       _debug_level;
     Stream *  _debug_output_stream;