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Re: emacs lisp syntax rfc: (cond (EXPR => (lambda (X) ...)))
From: |
Richard Stallman |
Subject: |
Re: emacs lisp syntax rfc: (cond (EXPR => (lambda (X) ...))) |
Date: |
Wed, 05 Jan 2011 18:36:58 -0500 |
I should clarify. The original proposal should read:
(cond (EXPR => 1-ARY-FUNC) ...)
It would rarely be useful, so it is not worth adding to Emacs Lisp.
(cond
((cdr list) => #'car)
((car list) => #'car)
That would be possible when the computation to be done
happens to match an existing function. That was true in my
(artificial) example, but it is rarely true in real life.
--
Richard Stallman
President, Free Software Foundation
51 Franklin St
Boston MA 02110
USA
www.fsf.org, www.gnu.org
- Re: emacs lisp syntax rfc: (cond (EXPR => (lambda (X) ...))), (continued)
- Re: emacs lisp syntax rfc: (cond (EXPR => (lambda (X) ...))), Stephen J. Turnbull, 2011/01/04
- Re: emacs lisp syntax rfc: (cond (EXPR => (lambda (X) ...))), Thien-Thi Nguyen, 2011/01/04
- Re: emacs lisp syntax rfc: (cond (EXPR => (lambda (X) ...))), Stephen J. Turnbull, 2011/01/04
- Re: emacs lisp syntax rfc: (cond (EXPR => (lambda (X) ...))), Miles Bader, 2011/01/05
- Re: emacs lisp syntax rfc: (cond (EXPR => (lambda (X) ...))), Stefan Monnier, 2011/01/05
- Re: emacs lisp syntax rfc: (cond (EXPR => (lambda (X) ...))), Harald Hanche-Olsen, 2011/01/05
- Re: emacs lisp syntax rfc: (cond (EXPR => (lambda (X) ...))), Stefan Monnier, 2011/01/05
- Re: emacs lisp syntax rfc: (cond (EXPR => (lambda (X) ...))), Helmut Eller, 2011/01/06
- Re: emacs lisp syntax rfc: (cond (EXPR => (lambda (X) ...))), Stefan Monnier, 2011/01/06
- Re: emacs lisp syntax rfc: (cond (EXPR => (lambda (X) ...))), Richard Stallman, 2011/01/06
- Re: emacs lisp syntax rfc: (cond (EXPR => (lambda (X) ...))),
Richard Stallman <=
- Re: emacs lisp syntax rfc: (cond (EXPR => (lambda (X) ...))), Andy Wingo, 2011/01/11
- Re: emacs lisp syntax rfc: (cond (EXPR => (lambda (X) ...))), Miles Bader, 2011/01/05
- Re: emacs lisp syntax rfc: (cond (EXPR => (lambda (X) ...))), MON KEY, 2011/01/03