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   Re: Lisp concrete syntax -- was: Namespaces and DTDs

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  • From: "Rick Jelliffe" <ricko@allette.com.au>
  • To: <xml-dev@ic.ac.uk>
  • Date: Tue, 16 Mar 1999 12:25:03 +1100

 You can make LISP into SGML by short-reffing
    ( to "<sexp><car>"
    ) to "</sexp>"
allowing end-tag ommission on the car element and cdr element type, 
and within a car element type, short-ref white-space to "</car><cdr>".
Depending on the kind of LISP, you may need to also handle
quotes and other delimiters, to taste.

This marks up  
    (+ 1 1)
    <sexp><car>+</car><cdr>1 1</cdr></sexp>
which is a nice start for parsing. (If you think cad and cdr
would be confusing, use some other name.)

You could indeed continue this and get

Rick Jelliffe

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