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What is Pearl Common Lisp?

April 26, 2017common LISP pearl

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What is Pearl Common Lisp?

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When Apple Computer acquired Coral Software in January 1989, they re-released Coral’s Allegro Common Lisp and its optional modules as Macintosh Allegro Common Lisp (now just Macintosh Common Lisp). Coral’s other product, Pearl Lisp, was discontinued at that time. Pearl Lisp provides a subset of the functionality of MACL 1.3 and is not even fully CLtL1-compatible (e.g., the implementation of defstruct is different). Despite rumors to the contrary, Pearl Lisp is not and never was public domain. Nevertheless, Pearl Lisp and its documentation were placed in the “Moof:Goodies:Pearl Lisp” folder on the first pressing of “Phil and Dave’s Excellent CD”, the precursor to the current Apple Developer’s CD-ROM series. Apple removed Pearl from later versions of the developer CD-ROM distribution because of complaints from other Lisp vendors. If you own a copy of Pearl Lisp or a copy of this CD-ROM, you can make it runnable under System 7 with some slight modifications using ResEdit. To repeat, Pearl