runtime/ftplugin/sudoers.vim

" Vim filetype plugin file
" Language:             sudoers(5) configuration files
" Previous Maintainer:  Nikolai Weibull <now@bitwi.se>
" Latest Revision:      2023-10-07

if exists("b:did_ftplugin")
  finish
endif
let b:did_ftplugin = 1

let s:cpo_save = &cpo
set cpo&vim

let b:undo_ftplugin = "setl com< cms< fo<"

setlocal comments=:# commentstring=#\ %s formatoptions-=t formatoptions+=croql

if has('unix') && executable('less')
  if !has('gui_running')
    command -buffer -nargs=1 SudoersKeywordPrg
          \ silent exe '!' . 'LESS= MANPAGER="less --pattern=''\b' . <q-args> . '\b'' --hilite-search" man ' . 'sudoers' |
          \ redraw!
  elseif has('terminal')
    command -buffer -nargs=1 SudoersKeywordPrg
          \ silent exe ':term ' . 'env LESS= MANPAGER="less --pattern=''' . escape('\b' . <q-args> . '\b', '\') . ''' --hilite-search" man ' . 'sudoers'
  endif
  if exists(':SudoersKeywordPrg') == 2
    setlocal iskeyword+=-
    setlocal keywordprg=:SudoersKeywordPrg
    let b:undo_ftplugin .= '| setlocal keywordprg< iskeyword< | sil! delc -buffer SudoersKeywordPrg'
  endif
endif

let &cpo = s:cpo_save
unlet s:cpo_save