// NB, you need asciiShift +1 to go from A to B, even though that's a 'decrease' in priority
private void ChangePriority(int asciiShift)
{
if (Priority.IsNullOrEmpty())
{
SetPriority('A');
}
else
{
var current = Priority[1];
var newPriority = (Char)((int)(current) + asciiShift);
if (Char.IsLetter(newPriority))
{
SetPriority(newPriority);
}
}
}
public void SetPriority(char priority)
{
var priorityString = char.IsLetter(priority) ? new string(new[] { '(', priority, ')' }) : "";
if (!Raw.IsNullOrEmpty())
{
if (Priority.IsNullOrEmpty())
{
Raw = priorityString + " " + Raw;
}
else
{
Raw = Raw.Replace(Priority, priorityString);
}
}
Raw = Raw.Trim();
Priority = priorityString;
}
