/note.gif" width="16" height="16"><b>Backtracking 
        and Greedy RD </b><br>
        <br>
        Spirit is quite consistent and intuitive about when it backtracks and 
        to where, although it may not be obvious to those coming from different 
        backgrounds. In general, any (sub)parser will, given the same input, always 
        match the same portion of the input (or fail to match the input at all). 
        This means that Spirit is inherently greedy. Spirit will only backtrack 
        w