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[Gcl-devel] XP - ansi pprint

From: Peter Wood
Subject: [Gcl-devel] XP - ansi pprint
Date: Mon, 26 Aug 2002 19:09:32 +0200
User-agent: Mutt/1.4i


Would there be any interest in including XP in GCL?  It provides a
number of ansi-required functions and facilities which GCL currently
lacks: eg formatter, copy-pprint-dispatch etc.

The license is liberal (MIT style) and it was written by Richard
Waters' whose pretty-printer proposals became part of the CL standard.

I am no pprint expert, and it was a desire to learn about CL's pretty
printer which led me to try XP.  It compiles 'out of the box' on
current CVS, and has a very user-friendly #'xp::install.  It includes
a test-suite of over 600 tests, and GCL passes all but 5 (which did
not look too serious to me, in my ignorance ;-).

I believe that both CMUCL and Clisp use XP (they did both at one time,

It's available at:



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