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: Replace with CR Date: Mon, 06 Jul 2015 12:34:38 +0200 Organization: Informatimago Message-ID: <87zj39shfl.fsf@kuiper.lan.informatimago.com> References: <871tgmvcp9.fsf@kuiper.lan.informatimago.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 1436178932 29158 80.91.229.3 (6 Jul 2015 10:35:32 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 6 Jul 2015 10:35:32 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Mon Jul 06 12:35:28 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 1ZC3k8-0001wy-No for geh-help-gnu-emacs@m.gmane.org; Mon, 06 Jul 2015 12:35:20 +0200 Original-Received: from localhost ([::1]:49980 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZC3k8-0004I7-44 for geh-help-gnu-emacs@m.gmane.org; Mon, 06 Jul 2015 06:35:20 -0400 Original-Path: usenet.stanford.edu!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail Original-Newsgroups: gnu.emacs.help Original-Lines: 41 Original-X-Trace: individual.net RwINicgMAERb/PwfijeRuA4XmOibq1OkwPrOhH023APp5sttIu Cancel-Lock: sha1:ZTZmOTU0YjRkOWFkY2EzYjExMTNjMTcxNTU4YjhlYTEzNDUxMDg1MA== sha1:GClXfcFUxuUtv2ZNQ8m/KcNUXrg= 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:213197 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:105483 Archived-At: "Gian Uberto Lauri" writes: > Stefan Monnier writes: > > > Again, there's no such thing as ENTER. The key is RETURN. > > > > FWIW, my keyboard (US thinkpad) has no "RETURN", but it does have a key > > labelled "Enter". > > I have "Return" on my old VIC20, but I doubt Emacs will be ever ported > there... > > "Return" was a tty-derivative labeling and was once common, even when > it sent a LF o CR/LF[1] pair. NO. THE "RETURN" KEY NEVER EVER SENT A LINE-FEED CODE! Not even in CR-LF pair. It only sent a CARRIAGE RETURN code. It is the system that echoed this carriage return along with a line feed (or just a line feed when local echo was activated). And in the case of unix, it is the keyboard driver that translates the CARRIAGE RETURN code it reads into a LINE FEED in the buffer (and even, only according to the tty configuration). In linux, check n_tty_receive_char and do_output_char in drivers/tty/n_tty.c > Enter is much common now and closer to > semantic the keys has today for most computer users. Enough common to > build jokes on, see the two strips I posted. > > [1] for those who still do not know it: the pair is CR/LF and not > LF/CR because on old TTY the carriage return was a longer operation > that could be controlled without keeping the tty controller busy: you > could start the head carriage, and while the it was going home move > the paper drum one line. -- __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