LispForum

Hello, My nick is Methusala and I am a recovering Javaholic. We're here for ya, buddy! :D how do you use a function like a list? You don't. You define a macro that returns a function call* as a list, and then you call the macro. (see below) CL-USER> (defun h (x) (+ x x)) H CL-USER> (h 2) 4 CL-USER>...

#f(push _ xs) => (lambda (#:G1) (push #:G1 xs)) #f[_ + 1] => (lambda (#:G2) (+ #:G2 1)) #3f(foo) => (lambda (#:G3 #:G4 #:G5) (foo #:G3 #:G4 #:G5)) Personally, I find this syntax confusing. What's confusing about it? Each underline represents a distinct argument, and the number between the # and the...

Kompottkin wrote:

danb wrote:Everybody likes their own code

No. Definitely not.

So I exaggerated
Anyway, in most cases, if you don't like your own code, you don't have to use it. So it's common to see people touting their own favorite systems, which may or may not appeal to others.

{and $1 $2} #$(and $1 $2) I use a simpler but less powerful system called #func . It's more like partial application in ML: #f(push _ xs) => (lambda (#:G1) (push #:G1 xs)) #f[_ + 1] => (lambda (#:G2) (+ #:G2 1)) #3f(foo) => (lambda (#:G3 #:G4 #:G5) (foo #:G3 #:G4 #:G5)) Goo has something similar in...

I am trying to traverse the list (A (B (D E) C)) in a way that the print output should be in the following order D, E, B, C, A aka depth first traversal. This is a depth-based ordering of the nodes, but you need to collect elements breadth-first. Try writing a function that takes a tree as its only...

So, the question is, if you try to find the symbol 'walker in package :general-walker, will it return the inherited method symbol from arnesi or that from general-walker? Why? As qbg said, GENERAL-WALKER uses the existing symbol in ARNESI. It doesn't create a new one. So general-walker:walker is EQ...

Basically, i'm trying to automatically define a method What do you mean "automatically"? Are you trying to do it at runtime? This code is in another package. Why? i want to be able to find multiple symbols in a package which have the same name You can't do that. Within one package, any pa...

(labels ((define-square-accessor (accessor-name slot-name) (eval `(defmacro ,accessor-name (x y &optional (level '*level*)) `(slot-value (aref (level-data ,level) ,x ,y) ',',slot-name))))) (dolist (slot +square-slots+) (define-square-accessor (intern (concatenate 'string "SQUARE-" (st...

I'm cross-posting this to this forum from comp.lang.lisp ... The CL spec is mute on this point. If a destruct definition includes another struct and the new struct has a slot with the name of a slot in the included struct, what happens? Pascal C. answers the question in response #3. Looking farther...

findinglisp wrote:I'd really like to bring people in and continue to increase the amount of discussion.

Don't worry, they'll come. It takes time. Quality before quantity, plz