From: gah@ugcs.caltech.edu   
      
   Eric Fowler  wrote:   
   (snip)   
      
   > The *XX field is a single byte checksum calculated from the rest of   
   > the string up to that point.   
      
   > I am looking for a nice clean way of checking the sum within either   
   > the parser or the lexer, that is, calculating the checksum from the   
   > whole string and comparing it to the value I got embedded in the   
   > string itself.   
      
   Many checksums are designed such that, when computed over   
   the whole string including the checksum character,   
   the result is a known constant, usually zero or ~0.   
      
   That avoids the need for a special check for the last   
   character and a compare operation, but it may or   
   may not help in your caes.   
      
   -- glen   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)