From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Tassilo Horn Newsgroups: gmane.emacs.help Subject: Re: check if these is a buffer to a file Date: Mon, 16 Feb 2009 09:03:16 +0100 Message-ID: <87r61yn70b.fsf@thinkpad.tsdh.de> References: <6f0927c0-d5f3-42ab-b233-662207f2ed5e@x29g2000prf.googlegroups.com> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: ger.gmane.org 1234771495 4527 80.91.229.12 (16 Feb 2009 08:04:55 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 16 Feb 2009 08:04:55 +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 Feb 16 09:06:11 2009 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1LYyTZ-0001PV-ID for geh-help-gnu-emacs@m.gmane.org; Mon, 16 Feb 2009 09:05:36 +0100 Original-Received: from localhost ([127.0.0.1]:43651 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1LYySE-0006Gc-9g for geh-help-gnu-emacs@m.gmane.org; Mon, 16 Feb 2009 03:03:50 -0500 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1LYyRs-0006GV-Vr for help-gnu-emacs@gnu.org; Mon, 16 Feb 2009 03:03:29 -0500 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1LYyRr-0006GJ-7m for help-gnu-emacs@gnu.org; Mon, 16 Feb 2009 03:03:28 -0500 Original-Received: from [199.232.76.173] (port=52013 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1LYyRr-0006GG-35 for help-gnu-emacs@gnu.org; Mon, 16 Feb 2009 03:03:27 -0500 Original-Received: from main.gmane.org ([80.91.229.2]:49529 helo=ciao.gmane.org) by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1LYyRq-0005pO-2T for help-gnu-emacs@gnu.org; Mon, 16 Feb 2009 03:03:26 -0500 Original-Received: from list by ciao.gmane.org with local (Exim 4.43) id 1LYyRo-0001MH-OP for help-gnu-emacs@gnu.org; Mon, 16 Feb 2009 08:03:24 +0000 Original-Received: from dhcp108.uni-koblenz.de ([141.26.71.108]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 16 Feb 2009 08:03:24 +0000 Original-Received: from tassilo by dhcp108.uni-koblenz.de with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 16 Feb 2009 08:03:24 +0000 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 50 Original-X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: dhcp108.uni-koblenz.de User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.90 (gnu/linux) Cancel-Lock: sha1:wrdVcQvfona+kbXXtiHqArMjcqE= X-detected-operating-system: by monty-python.gnu.org: GNU/Linux 2.6, seldom 2.4 (older, 4) X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:62142 Archived-At: Kiwon Um writes: Hi! > Hello. I'm now writing some lisp codes. Have fun. > I want to write some codes that kill a buffer if it is already opened > (visited). Is there any predefined function to check the existence of > a buffer? If you find a file twice, the second time no new buffer will be opened but it'll be switched to the existing one. So there's no need to write some elisp code here. ,----[ C-h f find-file RET ] | find-file is an interactive compiled Lisp function in `files.el'. | | It is bound to , C-x C-f, . | | (find-file filename &optional wildcards) | | Edit file filename. | Switch to a buffer visiting file filename, | creating one if none already exists. | Interactively, the default if you just type RET is the current directory, | but the visited file name is available through the minibuffer history: | type M-n to pull it into the minibuffer. | | You can visit files on remote machines by specifying something | like /ssh:SOME_REMOTE_MACHINE:FILE for the file name. You can | also visit local files as a different user by specifying | /sudo::FILE for the file name. | See the Info node `(tramp)Filename Syntax' in the Tramp Info | manual, for more about this. | | Interactively, or if wildcards is non-nil in a call from Lisp, | expand wildcards (if any) and visit multiple files. You can | suppress wildcard expansion by setting `find-file-wildcards' to nil. | | To visit a file without any kind of conversion and without | automatically choosing a major mode, use M-x find-file-literally. `---- Bye, Tassilo -- "Emacs is not a development tool but a way of life." - David Kastrup in alt.religion.emacs -