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In Scheme, the namespace of the variables holding functions are the same as that of the regular variables, in CL it isn't. But (define zero-arguments () stuff) zero-arguments won't presumably won't evaluate, just returns the function, as it should, because that is what it is. I think that is what he...

Special vars: (let ((*special-variable* something else)) (any-program-using-that)) ;Feeding arguments to a program by non-destructive changing of its variables. You can look at it as adding then as arguments everywhere. Also useful if you have a recursive function and values are passed unchanged a l...

Never mind this, but imo 'natural reasoning' doesn't really have too much to do with how you denote it, and how mathematicians denote things isn't always particularly natural. Edit: It's convenient on paper and such, but it remains just notation. One feature that doesn't seem mentioned enough is spe...

You are completely right, by deriving and making an INITIALIZE-INSTANCE which subsequently uses CONFIGURE as needed based on keyword arguments would do it.(This is also very neat to do with the other cl gui libs) Still, if it isn't in some library, one has to wonder if a lot of duplication is being ...

You need a library that allows you to make guis or draw/user input. There are lots of bindings for CL that could do this. Which you choose depends on what you want. Personally i prefer CLG for gui, and Lispbuilder-SDL (with cl-opengl) for the other stuff. If you're using Able , Ltk is probably the e...

Those look like good ones. I am a little annoyed at times by INTERN too, for instance, it is annoying that you cant just re-intern symbols, you have to get symbol-name all the time. Same for the package, you can't just refer to it with a string/symbol, you have to get the actual package. CL sometime...

keyword-macro, should at least be fairly obvious, it does exactly what defmacro does, but binds it after (keyword-macro bound-to ....) (it is useless, it's point it to show how it can vary, there are less useless variations) I didn't specify how the last way, going via a renamed function, works, but...

For some things i noticed multiple ways of doing things: Allowing the user to define 'a type of function' this might be some kind of macro that allows for things inside to be defined you have various approaches: Via methods . (defgeneric keyword-macro-gen (name form)) (defmacro def-keyword-macro (na...

I am 25. I learned lisp when looking for better languages after feeling restricted with Cs, and C++s compiler whinage. An article about code=data and XML pushed me to learn lisp. However, i do feel that the barrier between languages is often an rather arbitrary one. We can already import C very stra...

Ok, good to know you can do what C wants that way. You mean making the class-C not to have some specific slots from class-A or class-B? Actually i meant that A has some generic functions, and both B and A+ override it for their classes. Then one might want to be able to use both the method for B and...