Hello,

On Sat, Jan 25, 2014 at 11:11 PM, Peter Nguyen
<[email protected]>wrote:

> Den lördagen den 25:e januari 2014 kl. 22:37:22 UTC+1 skrev Niklas
> Lindström:
> > Hi Peter,
> >
> > On Sat, Jan 25, 2014 at 5:13 AM, Peter Nguyen <[email protected]>
> wrote:
> >
> > Hi,
> >
> > I have a twig (PHP HTML template) file with several non ascii characters
> at different places. I can do a search with:
> >
> > /[\x7f-\xff]/
> >
> > and it will match them. But when I try to add these commands to my
> .vimrc file for highlighting them, it does not work:
> >
> > " Find non ASCII chars and highlight them
> >
> > syn match nonascii "[\x7f-\xff]"
> >
> > hi nonascii guibg=Red ctermbg=2
> >
> > Anyone who knows what I'm doing wrong?
> >
> > Declaring syntax rules in the .vimrc will not work, since the syntax
> will be cleared during vim startup (or something to that effect).
> >
> > For your case, you can either add something like this to your .vimrc:
> >
> >     match ErrorMsg "[\x7f-\xff]"
> >
> > Or add your original commands to a file called
> ~/.vim/after/syntax/php.vim in your home directory (create it and any
> needed parent directories if they don't already exist). The "after" folder
> is a nice way to customize things locally according to your needs. That
> file specifically will extend the php syntax for you.
> >
> > See also e.g. <http://vim.wikia.com/wiki/Highlight_unwanted_spaces>.
> >
> > H.T.H.
> > Cheers,
> > Niklas
> >
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> Hi Niklas,
>
> thanks for your answer. The match ErrorMsg "[\x7f-\xff]" works but only on
> the current file (.vimrc) after I source it. If I check the other file
> (twig) it didn't highlight the non-ascii characters. I haven't tried your
> suggestion with the "after" folder yet because I would want that non-ascii
> characters to be highlighted in all files, not just for php syntax. Is it
> possible?
>

Oh, right. It seems you need to trigger this for each window, so you can do
either:

    au BufWinEnter * match ErrorMsg "[\x7f-\xff]"

Or perhaps better (to play nicer with other things adding matches):

    au BufWinEnter * let w:matchnonascii=matchadd('ErrorMsg',
"[\x7f-\xff]", -1)
See e.g. <http://vim.wikia.com/wiki/VimTip810> for details. (Or :help
:match / :help matchadd())

Cheers,
Niklas


>
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