Xlisp

from The Free On-line Dictionary of Computing (8 July 2008)
eXperimental LISP
xlisp

   <language> (xlisp) An experimental programming language
   combining a subset of {Common Lisp} with an {object-oriented}
   extension capability (Class and Object types).  It was
   implemented by David Micheal Betz at Apple to allow
   experimentation with {object-oriented programming} on small
   computers.  The {C} {source code} has been ported to {Unix},
   {Microsoft Windows}, {Macintosh}, {Amiga}, {Atari}, and
   {MS-DOS}.

   Version 2.1 of the {interpreter}, by Tom Almy is closer to
   Common Lisp.

   Latest version: 2.1, as of 1992-05-26.

   (ftp://wasp.eng.ufl.edu/), (ftp://cs.orst.edu/),
   (ftp://glia.biostr.washington.edu/).

   E-mail: Tom Almy <[email protected]>.

   Microsoft Windows version
   (ftp://ftp.cica.indiana.edu/util/wxlslib.zip).

   Macintosh version (ftp://netcom.com/pub/bskendig/).

   Usenet newsgroup: news:comp.lang.lisp.x.

   (2000-08-14)
    

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