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Re: [Axiom-developer] Re: libaxiom.a

From: Ralf Hemmecke
Subject: Re: [Axiom-developer] Re: libaxiom.a
Date: Wed, 22 Mar 2006 11:26:01 +0100
User-agent: Thunderbird 1.5 (X11/20051201)

On 03/21/2006 04:55 PM, Page, Bill wrote:
On Tuesday, March 21, 2006 11:00 AM you wrote:
... AXIOMsys has a large set of libraries. These libraries
can't be compiled and executed standalone because they
assume the underlying lisp (grep for $Lisp in the algebra

Very true.

I grep'ped for $Lisp. Well, that makes 2568 occurrences and for my tasted a very bad design. Wouldn't it be much better to concentrate all the Lisp dependencies in just a few modules and write the rest depending on that modules in Aldor?

For example, I see "NIL$Lisp" all over the place (153 times). Brrrhh. Wouldn't just "nil" do? And to be honest, I mostly wouldn't like to see NIL at all. Aldor/SPAD should deal with domains and their elements and mostly forget about a pointer view. There would be only rare reasons to use NIL and they should be abstracted through an Aldor Pointer domain (which then could be mapped to Lisp (or whatever)).

Except that we now have this Lisp'ish SPAD code for historical reasons, I think it would be much cleaner to make a clear cut between the underlying Lisp infrastructure and the Algebra code.

Is my view so wrong (except that it means lots of work)?


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