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Incless: a portable and extensible Common Lisp printer implemetation

This project implements print-object methods for many standard classes and provides the interface to write, print, etc.

Requirements

ABCL, Clasp, ECL, and SBCL is the only current implementations that this system has been tested on.

In addition to a clone of this repository in a location that is discoverable by ASDF you will also need a clone of nontrivial-gray-streams. Incless does not implement pretty printing or format. These systems are implemented by Inravina and Invistra which work in coordination with Incless.

Usage

The core functionality is in the incless package, but the Common Lisp-like interface of write and print-object is in the invistra-extrinsic package and system. To call write try the following in SBCL:

* (asdf:load-system :incless-extrinsic)
T
* (incless-extrinsic:write :wibble)
:WIBBLE
NIL

Incless can be loaded along with Inravina and Invistra to provide a printer, pretty printer, and format. To load the complete stack try the following:

* (asdf:load-system :invistra-extrinsic)
T
* (incless-extrinsic:pprint '(loop for i in '(a b c) 
                                    unless (eq i b) do (stuff i) (quux i) and collect i))

(LOOP FOR I IN '(A B C)
      UNLESS (EQ I B)
        DO (STUFF I)
           (QUUX I)
        AND COLLECT I)
* (invistra-extrinsic:format t "Wibble: ~a~%"
                             :quux)
Wibble: QUUX
NIL