Re: [OT] Vim highlighting for trailing spaces

["Dmitry Torokhov" <dmitry.torokhov@gmail.com>]

On 6/29/07, Michael Tokarev <mjt@tls.msk.ru> wrote:
> 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.

That only highlights whitespace at the end of the lines. You might
want to use pattern below to also highlight "tab after space" in the
middle of the line:

:highlight RedundantSpaces ctermbg=red guibg=red
:match RedundantSpaces /\s\+$\| \+\ze\t/

--
Dmitry
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