From: davidlovemore@gmail.com   
      
   My friend, reporting the furthest position examined by the parser I have   
   useful in error cases as a simple stop gap when using a combinator approach.   
      
   Thinking about it you kind of want to see the furthest failed position and the   
   stack of rules above it. Such requires meta information when the code is   
   written in the most natural way. For this reason and others I believe it is   
   good to represent your grammar in data structures which is further in the   
   direction of a compiler compiler tool (or compiler interpreter tool).   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)