linux-kernel - Re: [OT] Vim highlighting for trailing spaces

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Message-ID: <4684FDAC.7000800@msgid.tls.msk.ru>
Date:	Fri, 29 Jun 2007 16:40:12 +0400
From:	Michael Tokarev <mjt@....msk.ru>
To:	Kyle Moffett <mrmacman_g4@....com>
CC:	Dave Young <hidave.darkstar@...il.com>,
	Li Yang-r58472 <LeoLi@...escale.com>,
	Josh Triplett <josh@...nel.org>,
	Jan Engelhardt <jengelh@...putergmbh.de>,
	Chris Shoemaker <c.shoemaker@....net>,
	Josh Triplett <josht@...ux.vnet.ibm.com>,
	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org
Subject: Re: [OT] Vim highlighting for trailing spaces

Kyle Moffett wrote:
> On Jun 28, 2007, at 03:20:24, Dave Young wrote:
>> And for vim trailing space, there's a tip in vim.org:
>> http://www.vim.org/tips/tip.php?tip_id=878
> 
> I actually prefer this (in .vimrc):
> 
> " Show trailing whitespace and spaces before tabs
> hi link localWhitespaceError Error
> au Syntax * syn match localWhitespaceError /\(\zs\%#\|\s\)\+$/ display
> au Syntax * syn match localWhitespaceError / \+\ze\t/ display
> 
> It always displays trailing whitespace and spaces-before tabs... except
> if your cursor is at the end of the whitespace.  The updating is
> occasionally a bit laggy (EG: Put spaces on a line and then move the
> cursor off it without pressing <ENTER>), but when you hit Ctrl-L, enter,
> or edit an adjacent line then it updates.

Stolen from an old message in LKML - I don't remember who's the author:

highlight WhitespaceEOL ctermbg=red guibg=red
match WhitespaceEOL /\s\+$/

Works without any glitches here (not "laggy").  But I don't use
syntax coloring - never tried if it works with coloring or not.

/mjt
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