linux-kernel - RE: [PATCH] CodingStyle: Add information about trailing whitespace.

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Message-ID: <989B956029373F45A0B8AF0297081890D834BE@zch01exm26.fsl.freescale.net>
Date:	Thu, 28 Jun 2007 15:08:03 +0800
From:	"Li Yang-r58472" <LeoLi@...escale.com>
To:	"Josh Triplett" <josh@...nel.org>,
	"Jan Engelhardt" <jengelh@...putergmbh.de>
Cc:	"dave young" <hidave.darkstar@...il.com>,
	"Chris Shoemaker" <c.shoemaker@....net>,
	"Josh Triplett" <josht@...ux.vnet.ibm.com>,
	<linux-kernel@...r.kernel.org>, <akpm@...ux-foundation.org>
Subject: RE: [PATCH] CodingStyle: Add information about trailing whitespace.

> -----Original Message-----
> From: linux-kernel-owner@...r.kernel.org
> [mailto:linux-kernel-owner@...r.kernel.org] On Behalf Of Josh Triplett
> Sent: Thursday, June 28, 2007 2:59 PM
> To: Jan Engelhardt
> Cc: dave young; Chris Shoemaker; Josh Triplett;
linux-kernel@...r.kernel.org;
> akpm@...ux-foundation.org
> Subject: Re: [PATCH] CodingStyle: Add information about trailing
whitespace.
> 
> Jan Engelhardt wrote:
> > On Jun 28 2007 06:29, dave young wrote:
> >> IMHO, another  cause of trailing whitespace is human error, for
> >> example long lines breaking will easy to cause the first line with
one
> >> traling whitespace (original space between the last two words).
> >
> > Most common errors (to me) are:
> >
> >  - hit return+tab too quickly that it interchanges, hence producing
> >    the unwanted \t\n
> >  - hit return+return to start a new paragraph of code;
> >    the intermediate line remains indented if autoindent is on.
> 
> Interestingly, emacs gets that case right: when you hit enter it
places the
> cursor at the properly indented insertion point, but if you leave the
line
> without typing anything it does not leave the indentation.  I thought
I
> remembered vim doing the same thing, but I just tested and it appears
not.  It
> seems to avoid leaving subsequent lines indented, but not the first
one.

No, vim works just fine here without leaving any indentation.  Maybe the
version of vim or the options matter.

- Leo
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