From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: waterloo Newsgroups: gmane.emacs.help Subject: can you explain the sentence about defvar in elisp? Date: Sat, 4 Jul 2009 00:33:54 +0800 Message-ID: <907065090907030933x5a340225w90f3b29ae8d9d91b@mail.gmail.com> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: multipart/alternative; boundary=000e0cd3108aec96c9046dcfb868 X-Trace: ger.gmane.org 1246638872 14258 80.91.229.12 (3 Jul 2009 16:34:32 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 3 Jul 2009 16:34:32 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Fri Jul 03 18:34:25 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 1MMliR-00063g-IB for geh-help-gnu-emacs@m.gmane.org; Fri, 03 Jul 2009 18:34:23 +0200 Original-Received: from localhost ([127.0.0.1]:43372 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1MMliQ-0004iY-Ol for geh-help-gnu-emacs@m.gmane.org; Fri, 03 Jul 2009 12:34:22 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1MMli6-0004hB-Ok for help-gnu-emacs@gnu.org; Fri, 03 Jul 2009 12:34:02 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1MMli1-0004gz-B7 for help-gnu-emacs@gnu.org; Fri, 03 Jul 2009 12:34:01 -0400 Original-Received: from [199.232.76.173] (port=52767 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1MMli1-0004gw-5z for help-gnu-emacs@gnu.org; Fri, 03 Jul 2009 12:33:57 -0400 Original-Received: from mail-pz0-f197.google.com ([209.85.222.197]:38785) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1MMli0-0007s7-M7 for help-gnu-emacs@gnu.org; Fri, 03 Jul 2009 12:33:56 -0400 Original-Received: by pzk35 with SMTP id 35so999828pzk.14 for ; Fri, 03 Jul 2009 09:33:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:date:message-id:subject :from:to:content-type; bh=POt7hB5kB7/T6JS7KXNxiqPMNDgXRgVUNzdKme+lkdo=; b=Q/vZvGvqkS5hMkgOD/ejryt+x1a2+7/I724DRvoLHkOjywJym+JLDDH5pyObcKhPC3 KbrjLMSeNumiJD/woF26oBanv1kOMmo8hCBWStdfjjRDrzC74y9pHQf8DN5pZ4e6RoOT l7bXH2zrCrdVB7Td51XKXbH+uGcL2XQpMwBqk= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=aBtNy262/Z4hQMt49yryvmg3dkDmxDW/1/Rnr95xe1Sg1leEkvCWf0LLUghXSuSXfJ UzngDj2bgtR7CT27XzR2JOo5vMfo8ngmwYwC8l7CJA5KD6vImxC0bMjqmQrOVT8HX5up JHhsUhEhJbJ8XwFt+DqXUri+8sWimTnrMtzls= Original-Received: by 10.142.126.6 with SMTP id y6mr559788wfc.230.1246638835012; Fri, 03 Jul 2009 09:33:55 -0700 (PDT) X-detected-operating-system: by monty-python.gnu.org: GNU/Linux 2.6 (newer, 2) 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:65762 Archived-At: --000e0cd3108aec96c9046dcfb868 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit When you specified a variable using the `defvar' special form, you could distinguish a readily settable variable from others by typing an asterisk, `*', in the first column of its documentation string. For example: (defvar shell-command-default-error-buffer nil "*Buffer name for `shell-command' ... error output. ... ") I can not understant it "distinguish a readily settable variable from others" ? Thanks --000e0cd3108aec96c9046dcfb868 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable When you specified a variable using the `defvar' special form, you
c= ould distinguish a readily settable variable from others by typing an
as= terisk, `*', in the first column of its documentation string.=A0 For example:

=A0=A0=A0=A0 (defvar shell-command-default-error-buffer nil=
=A0=A0=A0=A0=A0=A0 "*Buffer name for `shell-command' ... error= output.
=A0=A0=A0=A0 ... ")

I can not understant it "d= istinguish a readily settable variable from others" ?

Thanks
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