fixes for no path present

examples/basic_decode/basic_decode.ino

@@ -7,7 +7,8 @@ void setup()
 		"AB1CDE-10>APRS,AB1CDE:=1234.12N/12345.12E-QTH von AB1CDE",
 		"OE5ABC-10>APMI06,TCPIP*,qAC,T2AUSTRIA:@101733z1234.12N/12345.12E_247/000g002t043r002p002P...h83b10191WX - Linz - Nord",
 		"BH4ABC-10>APET51,TCPIP*,qAC,T2SWEDEN:!1234.12N/12345.12E-PHG4450 B8/BH4ABC APRS iGate 438.650MHz 12.4V",
-		"VK2ABC-9>APOTC1,WIDE1-1,WIDE2-1,qAR,VK2BLR:/184701h1234.12S/12345.12E>/A=001074 13.6V 27C    DD Com Nicsan"
+		"VK2ABC-9>APOTC1,WIDE1-1,WIDE2-1,qAR,VK2BLR:/184701h1234.12S/12345.12E>/A=001074 13.6V 27C    DD Com Nicsan",
+		"OE5BPA-10>APRS:!1418.68N/04819.82E_.../...g...t050r...p...P...h00b......DHT22"
 	};
 	size_t n = sizeof(message) / sizeof(message[0]);
 	for(size_t i = 0; i < n; i++)

src/APRSMessage.cpp

@@ -49,17 +49,25 @@ bool APRSMessage::decode(const String & message)
 {
 	int pos_src = message.indexOf('>');
 	_source = message.substring(0, pos_src);
-	int pos_dest = message.indexOf(',');
-	_destination = message.substring(pos_src+1, pos_dest);
 	int pos_path = message.indexOf(':');
-	_path = message.substring(pos_dest+1, pos_path);
-	_body->decode(message.substring(pos_path+1));
+	_path = message.substring(pos_src + 1, pos_path);
+	int path_spliter = _path.indexOf(',');
+	_destination = _path.substring(0, path_spliter);
+	if(path_spliter != -1)
+	{
+		_path = _path.substring(_path.indexOf(',') + 1);
+	}
+	else
+	{
+		_path = "";
+	}
+	_body->decode(message.substring(pos_path + 1));
 	return true;
 }
 
 String APRSMessage::toString() const
 {
-	return "Source: " + _source + ", Destination: " + _destination + ", Path: " + _path + ", " + _body->toString();
+	return "Source: \"" + _source + "\", Destination: \"" + _destination + "\", Path: \"" + _path + "\", " + _body->toString();
 }
 
 /*
@@ -111,5 +119,5 @@ bool APRSBody::decode(const String & message)
 
 String APRSBody::toString() const
 {
-	return "Data: " + _data;
+	return "Data: \"" + _data + "\"";
 }