Implemented the save method + fixed a hidden bug

src/app/CFGFileParser.cpp

@@ -21,6 +21,7 @@ void *CFGFileParser::parseFile()
       return NULL;
     }
 	
+	_state = INIT;
     while(file.available())
     {
       readChar = (char)file.read();
@@ -166,5 +167,87 @@ void *CFGFileParser::parseFile()
 
 boolean CFGFileParser::save(void *data)
 {
+  if(data == NULL)
+	return false;
+  Dictionary<CFGParameterValue> *ref = (Dictionary<CFGParameterValue> *) data;
+  int truncateHere(0);
+  char readChar(0);
+  
+  File file = _sdCardManager.open(_resource, FILE_READWRITE);
+  
+  if(!file)
+  {
+    file.close();
+    return false;
+  }
+  
+  file.seek(0);
+  _state = INIT;
+  
+  //We find out where to truncate the file
+  while(file.available())
+  {
+	readChar = (char)file.read();
+	switch(_state)
+	{
+		case INIT:
+			if(readChar == '#')
+			{
+				truncateHere++;
+				_state = COMMENT_SECTION;
+			}
+			else
+				_state = DONE;
+			break;
+		case COMMENT_SECTION:
+			truncateHere++;
+			if(readChar == '\n') _state = LINE_BREAK;
+			break;
+		case LINE_BREAK:
+			truncateHere++;
+			if(readChar == '#')
+                _state = COMMENT_SECTION;
+			else if(readChar == '\n') _state = DONE;
+			break;
+	}
+  }
+  
+  if(!file.truncate(truncateHere))
+  {
+	file.close();
+	return false;
+  }
+  
+  //Let's write the settings
+  for(int i = 0; i < ref->count(); i++)
+  {
+	CFGParameterValue *cfgPV = ref->get(i);
+	
+	if(cfgPV->isQuotedParameter())
+	{
+		file.write('\'');
+		file.print(cfgPV->getParameter());
+		file.write('\'');
+	}
+	else
+	{
+		file.print(cfgPV->getParameter());
+	}
+	
+	file.print(F(" : "));
+	
+	if(cfgPV->isQuotedValue())
+	{
+		file.write('\'');
+		file.print(cfgPV->stringValue());
+		file.println('\'');
+	}
+	else
+	{
+		file.println(cfgPV->stringValue());
+	}
+  }
+  
+  file.close();
   return true;
 }

src/app/CFGFileParser.h

@@ -16,7 +16,7 @@ public:
 protected:
 private:
     //This part handles the _buff realloc
-    enum State {INIT, COMMENT_SECTION, LINE_BREAK, PARAM_SECTION, ERROR, OPENING_QUOTE, SEPARATION};
+    enum State {INIT, COMMENT_SECTION, LINE_BREAK, PARAM_SECTION, ERROR, OPENING_QUOTE, SEPARATION, DONE};
     enum Type {PARAMETER, VALUE};
     State _state;
     Type _type;