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Kudos, there was also this one: http://www.cs.cmu.edu/afs/cs/Web/Groups/AI/lang/lisp/impl/awk/0.html http://www.cs.cmu.edu/afs/cs/Web/Groups/AI/lang/lisp/impl/a

• abecedarius 12y ago
  That one's a cooler hack because it runs in old awk, from before they supported user-defined functions. The whole read-eval-print composition is a straight-line series of loops, with the recursions unrolled into explicit stack manipulation. If you want to see how to write fairly readable code within those restrictions, it's instructive. It even has a cooler name. (I said so when bringing it up in my documentation.) On the other hand, awklisp has some value as a readable Lisp interpreter in a lower-level but still reasonable language, in between the usual Lisp-in-Lisp and Lisp-in-C tutorials.