From: tkoenig@netcologne.de   
      
   gah4  schrieb:   
      
   > In the cases where a data format has enough structure to be parsable with   
   > compiler tools, it is usually named a programming language.   
      
   I think STEP (the CAD graphics format) is an exception.   
      
   A language called EXPRESS (specified in something like BNF) is used   
   to specify a "schema", and this specification can then be used to   
   write parsers for the actual file.  All of this is specified in   
   standards which are quite expensive.   
      
   When I had occasion to write out CAD data from programs I wrote   
   myself, I looked at this workflow for an hour and decided to use   
   IGES instead.   
      
   --- SoupGate-Win32 v1.05   
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