Search found 180 matches
- Fri Feb 10, 2006 12:03 am
- Forum: newLISP in the real world
- Topic: (case) evaluation
- Replies: 6
- Views: 4060
As this example shows, the expression in the exp-N position in each (exp-N body-N) pair is completely unevaluated. > (set 'a 5) 5 > (set 'test '(eval a)) (eval a) > (eval test) 5 > (case test (5 'zero) ((eval a) 'one) (pete 'two) (true 'magoo)) one That is, no attempt is made to evaluate the express...
- Fri Jan 13, 2006 4:18 pm
- Forum: newLISP in the real world
- Topic: pushing stuff
- Replies: 4
- Views: 3267
You could write your own version of push -- mypush-- that would be used something like this: (mypush 1 2 3 'a) Notice that I quote the stack (in this case 'a) to prevent it from being evaluated. Something like this (this code doesn't work): (define (mypush) (let ( stack (last (args)) list-of-items (...
- Wed Jan 11, 2006 11:34 pm
- Forum: Anything else we might add?
- Topic: Scheme: reduce & filter (please rate).
- Replies: 9
- Views: 7231
Being unfamiliar with Scheme's named let, it's hard for me to read the Scheme code. Here is my straightforward newLisp solution which is, I think, tail recursive. ;; recursive version ;; (define (myfilter pred? items) (reverse (myfilter-aux pred? items '())) ) (define (myfilter-aux pred? items resul...
- Wed Dec 21, 2005 7:08 pm
- Forum: Anything else we might add?
- Topic: Christmas Quiz by Newlisper
- Replies: 1
- Views: 1409
Christmas Quiz by Newlisper
Because I can't figure out how to leave a comment at http://newlisper.blogspot.com, I'll post my answers here: Newlisper's problem statements is: Christmas quiz: four by four Here's a version of a traditional puzzle to exercise your mental maths muscles before Christmas. In newLISP, define symbols z...
- Fri Dec 16, 2005 10:44 pm
- Forum: Anything else we might add?
- Topic: Recusion
- Replies: 2
- Views: 2040
- Wed Dec 07, 2005 9:30 pm
- Forum: Anything else we might add?
- Topic: Interactive documentation
- Replies: 16
- Views: 6762
- Tue Dec 06, 2005 11:04 pm
- Forum: Anything else we might add?
- Topic: Return multiple values from a function.
- Replies: 16
- Views: 9284
My two cents: Mark wrote: "Ideally I could just put the CAR of the recursive value in the first part of the list and put the new value in CDR however it doesn't want to play that way." In newLisp as well as Scheme, a reasonable approach is to write in the language you wish you had, and then implemen...
- Sun Dec 04, 2005 10:09 pm
- Forum: Whither newLISP?
- Topic: Searching elements in an association list...
- Replies: 2
- Views: 3864
- Thu Dec 01, 2005 2:01 am
- Forum: Whither newLISP?
- Topic: Searching elements in an association list...
- Replies: 2
- Views: 3864
(set 'food-lists '( ("fruit" "bannana" "pear" "apple" "plum" "grapes") ("vegatables" "lettuce" "celery" "cucumbers" "olives" "onions") ("junk food" "ice cream" "licorice" "chocolate bar" "carmel apple" "bubble gum") )) (define (magoo findme a-list) (a-list ((ref findme a-list) 0)) ) Then > (magoo "...
- Thu Dec 01, 2005 1:53 am
- Forum: newLISP in the real world
- Topic: Breaking out of dolist...
- Replies: 1
- Views: 2140
- Mon Nov 14, 2005 8:07 pm
- Forum: newLISP and the O.S.
- Topic: List running processes/applications
- Replies: 5
- Views: 4501
- Sun Nov 13, 2005 11:14 pm
- Forum: newLISP and the O.S.
- Topic: List running processes/applications
- Replies: 5
- Views: 4501
List running processes/applications
Does anyone know of a windows function and associated DLL that will return a list of all running processs and/or applications — lists similar to those provided by Task Manager?
Thanks,
-- Sam
Thanks,
-- Sam
- Sat Nov 05, 2005 8:01 pm
- Forum: Anything else we might add?
- Topic: lambda?
- Replies: 2
- Views: 1724
- Sat Nov 05, 2005 7:42 pm
- Forum: Anything else we might add?
- Topic: lambda?
- Replies: 2
- Views: 1724
lambda?
lambda? returns true as expected in the following:
> (define (bob))
(lambda ())
> (lambda? bob)
true
Should lambda? also return true in the following?
> (define-macro (bob))
(lambda-macro ())
> (lambda? bob)
nil
> (define (bob))
(lambda ())
> (lambda? bob)
true
Should lambda? also return true in the following?
> (define-macro (bob))
(lambda-macro ())
> (lambda? bob)
nil
- Fri Nov 04, 2005 5:55 pm
- Forum: Anything else we might add?
- Topic: fnparse to get all used functions
- Replies: 6
- Views: 2732
Would something like this work? (define (fnparse SOURCE) (letn ( LP "(" ;) left paren SP " " ; space LPSP "( " ;) left paren and space NULL "" ; null string keep (lambda (L K) (dolist (x L) (if (= (x 0) LP) (push x K))) K) s (parse (replace LPSP (join (parse SOURCE) SP) LP) SP) ) ;body of letn (uniq...
- Thu Nov 03, 2005 9:46 pm
- Forum: newLISP in the real world
- Topic: Just another encounter of newlisp flexibility ;-)
- Replies: 7
- Views: 4501
- Thu Nov 03, 2005 3:39 pm
- Forum: Anything else we might add?
- Topic: select column from two-dimension list
- Replies: 3
- Views: 1968
Code: Select all
(define (select-column lst col)
(map (fn (row) (row col)) lst) )
- Wed Nov 02, 2005 8:16 pm
- Forum: newLISP in the real world
- Topic: rot13 in pure newlisp no regex(p)
- Replies: 16
- Views: 9223
(context 'rot13) (define (rot13:aux ch , i) (if (set 'i (find ch "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")) ("nopqrstuvwxyzabcdefghijklmNOPQRSTUVWXYZABCDEFGHIJKLM" i) ch )) (define (rot13:rot13 str) (join (map rot13:aux (explode str))) ) (context 'MAIN) > (silent (setq s (read-file "n...
- Wed Nov 02, 2005 12:30 am
- Forum: newLISP and the O.S.
- Topic: Bug in (int)
- Replies: 3
- Views: 3308
Hello Christer, It is intentional! Unless told otherwise (see manual), 'int' understands that number strings beginnning with numeral "0" (zero) are octal numbers. Since "08" is not a valid octal number, 'int' stops parsing the octal string at "0" and returns zero as the result. The manual gives comp...
- Mon Oct 17, 2005 6:38 pm
- Forum: Anything else we might add?
- Topic: need some help in lisp
- Replies: 3
- Views: 2557
Here is a pair of functions that might do the job: (define (good-count N L) (let ;if N=3.3 and L=(1 3 4) then pairs=((1 2.3) (3 0.3) (4 0.7)) ( pairs (map (fn (x) (list x (abs (sub x N)))) L) ) ;body of let ((min-pair pairs) 0) )) (define (min-pair L) (let ( MIN-PAIR (L 0) ) ;body of let (dolist (PA...
- Sun Oct 16, 2005 9:31 pm
- Forum: Anything else we might add?
- Topic: newLISP in 21 minutes
- Replies: 7
- Views: 3704
Hello Dmi, When I searched Google for "newlisp in 21 minutes" (quotes included), it found a "cached" version for me which I downloaded as an HTML file and then zipped. I can send the zipped file to you (how?) or perhaps you will have similar success with Google or another search engine. Here is the ...
- Sat Oct 15, 2005 9:37 pm
- Forum: Anything else we might add?
- Topic: Suggestions
- Replies: 4
- Views: 2520
- Sun Oct 02, 2005 8:24 pm
- Forum: Anything else we might add?
- Topic: autodocumentation
- Replies: 7
- Views: 3871
Based on work in this forum by Nigel Brown and HPW, the function (doc) has already been written. (define (doc f) "(doc f) --> display function f's doc string, if present" (if (and (or (lambda? f) (macro? f))(string?(nth 1 f))) (begin (print(nth 1 f)) (write-line) true) nil)) Using the following func...
- Thu Aug 18, 2005 3:05 pm
- Forum: Anything else we might add?
- Topic: random-sequence
- Replies: 15
- Views: 6747
Hi eddier,
I think you version works better like this:
I think you version works better like this:
Code: Select all
(define (random-sequence n m)
(letn (L (sequence n m) N (length L))
(map (lambda (x) (pop L x)) (rand N N)) ))
- Thu Aug 04, 2005 4:04 pm
- Forum: Anything else we might add?
- Topic: Escaping backslashes in append operation for use in regex
- Replies: 2
- Views: 2169