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

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Message-ID: <46835C16.9020700@kernel.org>
Date:	Wed, 27 Jun 2007 23:58:30 -0700
From:	Josh Triplett <josh@...nel.org>
To:	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.

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.

- Josh Triplett

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