HELP ! Pascal to C using " yacc "

[Shang Lu]

     Help !!

     Could some wizard on the netland please provide me some information 
on using " yacc " for Pascal to C translation (and C to Pascal too) 
please ? 
 
     Any clue will be helpful: publications, dissertations, which company
is working on this, or even one of someone's friend's friend ... 
 
     Thanks in advance.     
        
     Ted     UUCP: {hplabs, sun, ihnp4}!oliveb!tslu