From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: "Pascal J. Bourguignon" Newsgroups: gmane.emacs.help Subject: Re: can emacs do this Date: Thu, 15 Jan 2015 08:57:17 +0100 Organization: Informatimago Message-ID: <87h9vswk6a.fsf@kuiper.lan.informatimago.com> References: <9fcff97c-a183-41f1-a5cc-5b0cd94e2674@googlegroups.com> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Trace: ger.gmane.org 1421309125 13451 80.91.229.3 (15 Jan 2015 08:05:25 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 15 Jan 2015 08:05:25 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Thu Jan 15 09:05:20 2015 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1YBfQe-0001jZ-Hx for geh-help-gnu-emacs@m.gmane.org; Thu, 15 Jan 2015 09:05:20 +0100 Original-Received: from localhost ([::1]:49437 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YBfQd-0003HO-TT for geh-help-gnu-emacs@m.gmane.org; Thu, 15 Jan 2015 03:05:19 -0500 Original-Path: usenet.stanford.edu!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail Original-Newsgroups: gnu.emacs.help Original-Lines: 28 Original-X-Trace: individual.net /RbkjSrQcp1fcjNZVlRHjA5RHd7JzQTstvB3jTU3nI+Y3sC2il Cancel-Lock: sha1:OWRlNzk0M2I1MGU0OTUwNGEwZGE1NGYyZThmNmM0YzkzZDQzNzg0Zg== sha1:w5J2UPIBWkzgp3sHAAt8gbqNpOs= Face: iVBORw0KGgoAAAANSUhEUgAAADAAAAAwAQMAAABtzGvEAAAABlBMVEUAAAD///+l2Z/dAAAA oElEQVR4nK3OsRHCMAwF0O8YQufUNIQRGIAja9CxSA55AxZgFO4coMgYrEDDQZWPIlNAjwq9 033pbOBPtbXuB6PKNBn5gZkhGa86Z4x2wE67O+06WxGD/HCOGR0deY3f9Ijwwt7rNGNf6Oac l/GuZTF1wFGKiYYHKSFAkjIo1b6sCYS1sVmFhhhahKQssRjRT90ITWUk6vvK3RsPGs+M1RuR mV+hO/VvFAAAAABJRU5ErkJggg== X-Accept-Language: fr, es, en User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) Original-Xref: usenet.stanford.edu gnu.emacs.help:209810 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:102089 Archived-At: Of course. Any question starting by "Can emacs do …" has a positive answer. So what's the purpose of asking? > What facilities of emacs can be used for this? Just use emacs, there's no need for anything special! (defun √ (x) (sqrt x)) (√ 42) --> 6.48074069840786 (defmacro λ (λ-list &rest body) `(lambda ,λ-list ,@body))λ (mapcar (λ (x) (* x x)) '(1 2 3 4)) --> (1 4 9 16) There's also an alternative, where emacs displays eg. λ when there is lambda in the file: http://www.emacswiki.org/emacs/PrettySymbol http://www.emacswiki.org/emacs/PrettyGreek -- __Pascal Bourguignon__ http://www.informatimago.com/ “The factory of the future will have only two employees, a man and a dog. The man will be there to feed the dog. The dog will be there to keep the man from touching the equipment.” -- Carl Bass CEO Autodesk