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spacehi.vim

This all started on vim.org. This plugin hadn't been touched in 10 years, it just worked.

Original quote:

This plugin will highlight tabs and trailing spaces on a line, with the ability
to toggle the highlighting on and off. Using highlighting to illuminate these
characters is preferrable to using listchars and "set list" because it allows
you to copy from the vim window without getting listchars shrapnel in your
buffer.

The highlighting is done on a per buffer basis, and can be toggled on and off
easily (the default binds to F3 if it's unbound).

I added support for non-breaking spaces (nbsp) because I've been burned one too many times by a copy and paste.

I also changed the colors to, if I remember correctly, how spacehi used to look (very loud). The colors can be adjusted by setting the global variables:

let g:spacehi_tabcolor="ctermfg=White ctermbg=Red guifg=White guibg=Red"
let g:spacehi_spacecolor="ctermfg=Black ctermbg=Yellow guifg=Blue guibg=Yellow"
let g:spacehi_nbspcolor="ctermfg=White ctermbg=Red guifg=White guibg=Red"

Installation

Use your favorite package manager, or use Vim's built-in package support (since Vim 7.4.1528):

mkdir -p ~/.vim/pack/plugins/start
cd ~/.vim/pack/plugins/start
git clone https://github.com/jpalardy/spacehi.vim.git

Disabling for specific filetypes

When spacehi is enabled, it will highlight "weird spaces" in all files. That's not always useful...

For examples, help files turn into Christmas trees, in the most unhelpful way.

To disable spacehi, only for some types of files, here's a snippet to adapt to your needs:

augroup mostly_spacehi
  autocmd!
  autocmd Syntax * SpaceHi
  autocmd FileType help     NoSpaceHi
  autocmd FileType diff     NoSpaceHi
  autocmd FileType man      NoSpaceHi
  autocmd FileType go       NoSpaceHi
  autocmd FileType make     NoSpaceHi
augroup END