From: danwang74@gmail.com   
      
   Bill Fenlason wrote:   
   {stuff deleted}   
   > Interesting, or just old news?   
      
   What you've describe seems like a form of vW-grammar.   
      
   http://homepages.cwi.nl/~steven/vw.html   
      
   General vW-grammars are context sensitive if I'm not mistaken.   
   vW-grammar's were used to define the semantics of Algol-68.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)