From: costello@mitre.org   
      
   Hi Folks,   
      
   I am reading "Software Tools" by Kernighan and Plauger. One of the things that   
   I've learned is that Ratfor is a simple abstraction on top of Fortran. For   
   example, Ratfor provides a while loop. The while loop can be mechanically   
   converted to Fortran if-then and goto statements. Really cool!   
      
   That got me to wondering, "What other programming languages are simply   
   abstractions on top of an existing programming language?"   
      
   /Roger   
   [The infamous m4 macrogenerator is used to build what are in effect new   
   languages like the sendmail configuration and GNU Autoconf. -John]   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)