Subject: Re: Could CDR-coding be on the way back?
From: (Rob Warnock)
Date: 16 Dec 2000 10:00:27 GMT
Newsgroups: comp.lang.lisp,comp.arch
Message-ID: <91fefr$bi70a$>
Peter da Silva <> wrote:
| Provide a "lispscript" tool that lets you write, oh:
| 	awk 'BEGIN {FS=":"}; $6=="/sbin/nologin" {print $1}' /etc/passwd
| in no more than a couple of lines of code, and you'll get people using
| Lisp for casual scripting.

I already frequently use it for casual scripting (well, Scheme, mostly).
With only a couple of new utility macros & functions, your example could
be expressed in Common Lisp as:

	(with-lines-from-file (line "/etc/passwd")
	  (let ((fields (string-split line :fs #\:)))
	    (when (string= (aref fields 5) "/sbin/nologin")
	      (format t "~A~%" (aref fields 0))))))

But seriously, how many "one-liners" do you *actually* write anyway?
Not many. And by the time you've done coded up something that's complex
enough to be *useful*, Perl's tricky little code-compression notation
usually expands to be about the same length as any other language, and
six weeks or six months later I'd *much* rather be reading Lisp than
decoding a Perl puzzle.


Rob Warnock, 31-2-510
Network Engineering
Silicon Graphics, Inc.		Phone: 650-933-1673
1600 Amphitheatre Pkwy.		PP-ASEL-IA
Mountain View, CA  94043