From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759583AbYDNCJx (ORCPT ); Sun, 13 Apr 2008 22:09:53 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753617AbYDNCJp (ORCPT ); Sun, 13 Apr 2008 22:09:45 -0400 Received: from rgminet01.oracle.com ([148.87.113.118]:52373 "EHLO rgminet01.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753539AbYDNCJp (ORCPT ); Sun, 13 Apr 2008 22:09:45 -0400 Date: Sun, 13 Apr 2008 19:09:16 -0700 From: Randy Dunlap To: Al Viro Cc: Dmitri Vorobiev , akpm@linux-foundation.org, corbet@lwn.net, linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/1] Fix typos in Documentation/filesystems/seq_file.txt Message-Id: <20080413190916.57cede66.randy.dunlap@oracle.com> In-Reply-To: <20080413224547.GS9785@ZenIV.linux.org.uk> References: <1208111201-15698-1-git-send-email-dmitri.vorobiev@gmail.com> <20080413151020.bfa62f58.randy.dunlap@oracle.com> <48028841.900@gmail.com> <20080413224547.GS9785@ZenIV.linux.org.uk> Organization: Oracle Linux Eng. X-Mailer: Sylpheed 2.4.7 (GTK+ 2.8.10; x86_64-unknown-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Brightmail-Tracker: AAAAAQAAAAI= X-Brightmail-Tracker: AAAAAQAAAAI= X-Whitelist: TRUE X-Whitelist: TRUE Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, 13 Apr 2008 23:45:47 +0100 Al Viro wrote: > On Mon, Apr 14, 2008 at 02:25:05AM +0400, Dmitri Vorobiev wrote: > > > Actually, I was doubting whether the "2 spaces" thing was > > intentional or not. The overwhelming majority of the sentences in > > this document use only one space after a period, however, and this > > made me decide that the "2 spaces" thing had not been deliberate > > but just a typo. > > > > Are there any rules about using spaces after a period at the end > > of a sentence? > > See Knuth (TeXbook) for the story on that... I googled that but I don't see the history there. AFAIK, 2 spaces at the end of sentences is a typewriter-ism, for easier visual separation of sentences. Probably (just guessing here) has to do with monospace fonts vs. (not having) proportional ones there (usually). --- ~Randy [Yes, I learned to type on a manual typewriter.]