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- Path: sparky!uunet!dtix!darwin.sura.net!spool.mu.edu!olivea!apple!cambridge.apple.com!Mark_Kantrowitz@GLINDA.OZ.CS.CMU.EDU
- From: Mark_Kantrowitz@GLINDA.OZ.CS.CMU.EDU (Mark Kantrowitz)
- Newsgroups: comp.lang.lisp.mcl
- Subject: Re: Pearl Lisp -- PD or Not?
- Message-ID: <13166.725577563@GLINDA.OZ.CS.CMU.EDU>
- Date: 28 Dec 92 21:19:23 GMT
- References: Your message of "Mon, 21 Dec 92 17:33:31 EST."
- <9212212235.AA05215@Early-Bird.Think.COM>
- Sender: info-mcl-request@cambridge.apple.com
- Reply-To: mkant@CS.CMU.EDU
- Lines: 81
- Approved: comp.lang.lisp.mcl@Cambridge.Apple.C0M
-
-
- The short answer is that Pearl Lisp is NOT public domain.
-
- The long answer is appended below, and will appear in the Lisp FAQ posting
- (possibly in an abbreviated format).
-
- --mark
-
- 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 Lisp is NOT public
- domain, so you must own a copy to use it.
-
- To make it runnable, one needs to use ResEdit to make changes to the
- BNDL and FREF resources so that it will connect to its icons properly.
- This will make it respond to double-clicks in the normal manner and
- make it be properly linked to its files. The detailed instructions
- are as follows:
-
- 1. Copy the Pearl Lisp folder to a writable medium.
-
- 2. Open the file "Pearl" with ResEdit.
-
- 3. Select the PERL resource type and choose Cut from the Edit menu.
- (You will need this in step 6, so you should paste it into a temporary
- file if you want to Copy or Cut anything else before then.)
-
- 4. Find the "FASL" FREF resource and change the file type in it from
- "FASL" to "PSFL".
-
- 5. Edit the BNDL resource 128 and change the owner from "CCL" to
- "PERL".
-
- 6. Choose Paste from the Edit menu to put the earlier PERL resource
- back in. ResEdit created a new empty one when you changed the owner,
- but you want the original. Click Yes in the dialog about unique id's;
- you want the original id, 0, for the PERL resource.
-
- 7. Delete the entire CCL resource type, if it exists.
-
- 8. Save all these changes and rebuild your desktop. Pearl and the
- associated .Lisp and .Fasl files should magically regain their icons
- and work properly.
-
- The object is to change the owner to "PERL" and the fasl file type to
- "PSFL". But when you change the owner, ResEdit creates a new resource
- with type the same as the owner, and id 0. This resource contains the
- default string to use in the GetInfo box. In this case, the PERL
- resource that came with Pearl has Apple's copyright notice, which
- should be retained.
-
- Something else you might want to do: Edit the mask for ICN# 128. This
- controls which pixels on the screen respond to mouse clicks. The most
- natural thing is for one to double-click on the pearl, but
- unfortunately, the mask has a lot of white pixels within the pearl, so
- it's hard to hit. Fill in the pearl in the mask; in fact, you might
- even fill in the whole square, although most people seem to just fill
- in the outline of their icons.
-
- Most of the instructions for modifying Pearl using ResEdit were
- provided a few years ago by Paul Snively.
-
- After you've made these changes, it will run under System 7 if you
- turn off 32-bit addressing. It seems to bomb on a Quadra.
-
- If you need a more powerful Lisp or one that is compatible with the
- standard for Common Lisp, consider purchasing Macintosh Common Lisp.
-