Lisp

Who were the opponents of Lisp?
On Thu, 25 Mar 2010 08:15:42 +0100, Kazimir Majorinc wrote: Informally, many people criticize Lisp. Some best programmers I know easily dismissed it because "they do not like parentheses." But who of programming celebrities or theoreticians were enemies of Lisp? Are there any influential anti-Lisp book o... 27 Apr 2010 12:09

progv and eval misunderstanding
I am having trouble mixing progv and eval when a binding from progv is supposed to be a function. Particularly, this one works: (progv '(op n m) '(+ 2 3) (eval '(eql (+ n m) 5))) However, this one complains that the function OP is undefined: (progv '(op n m) '(+ 2 3) (eval '(eql (op n m) 5))) I ... 27 Mar 2010 17:39

(SETF FOO) syntax. [Was Re: Comprehending error messages]
pjb(a)informatimago.com (Pascal J. Bourguignon) writes: Here, the rule that applies, is that a form which is a list, is interpreted depending on the first element of that list. The meaning of: ((SETF #:G3813 NIL) X Y Z) depends on what (SETF #:G3813 NIL) is. ... But here, it is a l... 25 Mar 2010 09:05

emacs lisp tutorial: Count Words and Chars
Emacs Lisp: Count Words, Count Chars, Count Region Xah Lee, 2010-03-23 A little elisp tip. Here's a short elisp i have been using since about 2006. It reports the number of words and chars in a text selection. (defun count-region (beginning end) "Print number of words and chars in region." (interactive ... 8 Apr 2010 10:54

Comprehending error messages
As mentioned earlier, I'm a new Lisper (and taking up emacs as well now; thanks refun for re-suggesting it). I was trying to write a simple macro earlier tonight, and I'd written a long post to ask c.l.lisp to help me figure out what was wrong. But, afraid of looking too much like a newcomer, I spent an additio... 25 Mar 2010 00:59

the rise and fall of t
Interesting article http://lostgarden.com/2005/09/nintendos-genre-innovation-strategy.html Then I had a random thought of the "CL eats its young" vein: Is the programming language life cycle similar to the game genre life cycle? Is this a universal pattern in all human endeavors? - Daniel ... 31 Mar 2010 02:12

Not a bug - a feature!
I now know what happened. You can specify the default float format to f2cl. The maxima people use it with rdff 'double-float and have, hence, compiled lapack with option (:float-format double-float). Now all works and is fine (by now). Mario S. Mommer wrote: I've never had the *read-default-float-format* iss... 22 Mar 2010 11:50

Need help configuring slime to display hyperspec.
I have slime installed on Mac OS X 10.6.2 and have downloaded the hyperspec and placed it in directory: /Library/Application Support/Lisp/Hyperspec-7-0/ I tried configuring slime to open up the hyperspec inside the emacs session whenever I am in lisp mode and type m-x hyperspec-lookup. This is supposed to open... 22 Mar 2010 04:57

How to check if file is a regular file (not directory)?
I'm unsure how to check if a filename is regular file (and not a directory, for example). I mean similar check that Unix command "test -f" does. Currently I'm using this: (defun file-exists-and-is-regular-file-p (path) "Return t if file exists and is a regular file. Return nil otherwise." ... 21 Mar 2010 13:50

Just learning lisp - tail recursion issues?
Hi folks. I've always had in the back of my mind that I ought to learn lisp, but the language looks pretty intimidating so I never got round to it. I started in earnest this week though and I'm quite liking it thus far. I've had a couple problems, though, and I'm hoping cll is a good community to get help from.... 28 Mar 2010 10:05