[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: newsticker-start: Recursive laod error
From: |
Tomas Zerolo |
Subject: |
Re: newsticker-start: Recursive laod error |
Date: |
Wed, 14 Dec 2005 23:16:40 +0100 |
User-agent: |
Mutt/1.5.6+20040907i |
On Wed, Dec 14, 2005 at 08:22:29PM +0100, Ulf Jasper wrote:
[...]
> That Occam guy is an old friend of mine... but could someone please explain
> the "(< 0 (length LIST)) === LIST" part to newbie me?
I'm guessing you are baffled by the === part. This is not Lisp, but meta-lisp
;-) meaning roughly "is equivalent to". So that reads
(< 0 (length LIST)) is equivalent to LIST
which, of course only has meaning in some contextx (and in some others
it's even false, as has been pointed out in this thread).
I.e., instead of writing
(if (< 0 (length LIST))
...)
you may write
(if LIST
...)
*provided you know LIST is indeed a list* (and not e.g. a string).
Ah, Thien-Thi's conciseness... :-)
Regards
-- tomas
signature.asc
Description: Digital signature
- Re: newsticker-start: Recursive laod error, (continued)
- Re: newsticker-start: Recursive laod error, Romain Francoise, 2005/12/11
- Message not available
- Re: newsticker-start: Recursive laod error, Ulf Jasper, 2005/12/12
- Re: newsticker-start: Recursive laod error, Thien-Thi Nguyen, 2005/12/12
- Re: newsticker-start: Recursive laod error, Thien-Thi Nguyen, 2005/12/12
- Re: newsticker-start: Recursive laod error, Stefan Monnier, 2005/12/13
- Re: newsticker-start: Recursive laod error, Thien-Thi Nguyen, 2005/12/13
- Re: newsticker-start: Recursive laod error, Stefan Monnier, 2005/12/13
- Message not available
- Re: newsticker-start: Recursive laod error, Ulf Jasper, 2005/12/14
- Re: newsticker-start: Recursive laod error,
Tomas Zerolo <=
- Re: newsticker-start: Recursive laod error, Thien-Thi Nguyen, 2005/12/14
- RE: newsticker-start: Recursive laod error, Drew Adams, 2005/12/14
- Message not available
- Re: newsticker-start: Recursive laod error, Ulf Jasper, 2005/12/15