LispForum

What do you mean by "limits"? The variable is bound to the list of remaining arguments, and within the body of a function it acts as any other variable. In any case, I would suggest iterative solution, maybe like this (if I understand what you want correctly): (defun app-sym (&rest arg...

I am reviving quite an old thread, but perhaps this will become useful to someone: Recently I became interested in the so called Semantic Web, which led me to Redland library, one component of which is Raptor parser, which claims to parse "RSS tag soup including all versions of RSS, Atom 1.0 an...

So what I am wondering since a long time now is, whether it is possible to create a system-wide garbage-collector. I dont want to do this, and I am sure, if it was possible, someone else would have done it, but I just wonder, why it is not possible. It is not impossible, and has been done in the pa...

Most Common Lisp packages are gathered in CLiki and perhaps cl-user . Also, the Maxima Computer Algebra System is written in CL and open source, and it might be useful for your described problem domain. Although I read that its code is old, obviously complex, and hence not very readable for someone ...

That's functional programming :P You can write code like that for lots of applications. It tends to be a little slower and more memory-intensive than imperative code, but once you get used to FP, hard programs can actually be both fun and easy. Note that using a package like SERIES you can write th...

My point was that iterating over all slots in a class is not actually that useful for any non-contrived objective, except serialization/persistence, for which there are libraries already. Which means that this is not a problem one should worry about. Anything that would require it can be either done...

I would approach the example in the "don't do that" way ;) That is, printing all slots in an object instance is not very useful for anything other than debugging, and debugging is better done when thinking more about verbs than nouns. And if state of some particular object is important, th...

From what I have seen there are two solutions to this kind of problems. Well, maybe three, since the first thing you should consider is thinking not in terms of objects, but generic functions, or protocols in general. Doing the same operation on every slot in an object should be pretty rare, because...

I believe that compiling in CLISP should be done only with already debugged code, since compiling loses most information leading to cryptic errors, like the one you describe. What happens here I think is (format ...) getting compiled to local function of one argument TEST-1, which is different from ...

There is MetaObject Protocol, which is not a standard, but a common extension. Unfortunately, most implementations have subtle (or not so subtle) differences in their implementations of it, but fortunately there is http://common-lisp.net/project/closer/closer-mop.html , which is a compatibility libr...