Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!bloom-beacon!bu-cs!mirror!rayssd!raybed2!linus!mbunix!bwk
From: bwk@mbunix.mitre.org (Barry W. Kort)
Newsgroups: comp.lang.smalltalk
Subject: Re: Digitalk Smalltalk/V for Mac
Summary: Code can be ported with some difficulty.
Keywords: PC v. Mac, Digitalk v. ST-80
Message-ID: <44172@linus.UUCP>
Date: 29 Jan 89 21:51:58 GMT
References: <89@<PETE> <67500006@uicbert.eecs.uic.edu>
Sender: news@linus.UUCP
Reply-To: bwk@mbunix.mitre.org (Barry Kort)
Organization: True Value Software, Axon Causeway, NJ
Lines: 22

In article <67500006@uicbert.eecs.uic.edu> wilson@uicbert.eecs.uic.edu 
(Paul R. Wilson) asks about porting code between Digitalk Smalltalk
and ParcPlace Smalltalk.

I have ported coded from Smalltalk V/286 to PPS ST-80.

Two nuisance factors are the difference in the assignment
operator ("colon-equal" versus "left arrow"), and the
File-In message ("methods" versus "methodsFor:").  Unless
you are using the enhanced browser from Carleton, you
won't have category and protocol names for your classes
and methods.

Beyond that, there are some differences in Text objects and
the CharacterScanner, Forms (no color forms on the Mac),
and the MVC structure.  The lack of color support on the
Mac is the biggest drawback to date.  Until that problem
is fixed, I plan to stick with Digitalk on a 386 platform.

It usually takes me less than a day to port code.

--Barry Kort