Search found 148 matches

by Paul Donnelly
Mon Apr 19, 2010 10:44 pm
Forum: The Lounge
Topic: Question about parentheses
Replies: 27
Views: 26747

Re: Question about parentheses

Use paredit.el or something like it and you'll type half the parentheses.
by Paul Donnelly
Sat Apr 10, 2010 3:11 am
Forum: Common Lisp
Topic: Lists of Functions
Replies: 9
Views: 2418

Re: Lists of Functions

Thanks for the link Ramarren. I don't recall seeing how to do it in that chapter. I've tried funcall etc. I'll have another look. Is it possible to structure lists of functions and then call those functions from the list with a function like nth or assoc? Sure, but you didn't make a list of functio...
by Paul Donnelly
Fri Apr 09, 2010 1:11 am
Forum: Common Lisp
Topic: Lists of Functions
Replies: 9
Views: 2418

Re: Lists of Functions

BIOS wrote:Is it possible to structure lists of functions and then call those functions from the list with a function like nth or assoc?
Sure, but you didn't make a list of functions.
by Paul Donnelly
Sat Apr 03, 2010 5:44 pm
Forum: Common Lisp
Topic: What am I doing wrong
Replies: 4
Views: 1695

Re: What am I doing wrong

I have a simple example readin function (defun read-setup (thefile) (with-open-file (stream thefile) (loop for line = (read stream nil 'end) until (eq line 'end) do (print (list (coerce line 'integer)))))) That just reads in some integers into a file, Im pretty sure it works, because it was an exam...
by Paul Donnelly
Sun Mar 14, 2010 2:08 pm
Forum: The Lounge
Topic: hello, I'm a new lisp newbie
Replies: 4
Views: 5373

Re: hello, I'm a new lisp newbie

PCL is a good book for people with some programming experience. Be forewarned: you'll try to apply macros in many situations where they're not particularly necessary or appropriate. Any time you think you need a macro, try first to write it as a function instead. Often, wrapping a function with a ma...
by Paul Donnelly
Wed Feb 24, 2010 8:36 pm
Forum: Common Lisp
Topic: Saving my work ,effectively, in lisp-in-a-box?
Replies: 5
Views: 8432

Re: Saving my work ,effectively, in lisp-in-a-box?

Hi, I'm learning this brilliant language and i'm using lisp-in-a-box. One "problem" i have is when want to save what i write. Do i really need to create a new file and write the code again in that file? Is there not a more effective way? Don't write code in the REPL. It's just for throwaway stuff. ...
by Paul Donnelly
Thu Feb 18, 2010 3:42 pm
Forum: Common Lisp
Topic: I have an urgent question :S
Replies: 5
Views: 8448

Re: I have an urgent question :S

;; Edited the indentation to make some structural issues clearer. (defun sorter A (cond (null A) nil) (eq (difference ((car a) (greatest A)) 0) (cons (car A) (sorter cdr A))) (t ( sorter (cons (cdr A) (car A)))) ;; Where did these guys below come from? ))) Is it totally wrong? I'm sorry to say that...
by Paul Donnelly
Thu Feb 18, 2010 3:08 pm
Forum: The Lounge
Topic: LISP vs Lisp
Replies: 8
Views: 12356

Re: LISP vs Lisp

Hey, I'm trying to convince ESR to use Lisp instead of LISP in the hacker howto. However, I can't find any citation to why Lisp refers to modern dialects, and LISP to old ones. I don't think the difference is related to language versions. It's rather a matter of the current orthography. It seems ES...
by Paul Donnelly
Sat Feb 13, 2010 2:54 am
Forum: Common Lisp
Topic: Lisp newbie: deck of cards in Lisp
Replies: 17
Views: 6740

Re: Lisp newbie: deck of cards in Lisp

I guess I'm thinking too real world (like java). Probably a mistake in Java too. I don't think it much matters what representation you choose for this, although you'll probably be happier if you store the rank in a form that can be compared without a lot of fuss. The cons cell representation that N...
by Paul Donnelly
Sat Feb 06, 2010 7:09 pm
Forum: Common Lisp
Topic: "what will happen when i do..."
Replies: 9
Views: 2506

Re: "what will happen when i do..."

lists will probably be implemented as arrays in most cases You can pretty much rely on this never happening*. Your Lisp is not going to swap your data structures around. It's going to assume you know what you're doing and picked lists for a reason. * The exception being if you are using a strange l...