" Enable copy-friendly linebreak options
function! copy_linebreak#Enable() abort
  setlocal nolinebreak linebreak?
  let s:showbreak_save = &showbreak
  set showbreak=
  if exists('+breakindent')
    setlocal nobreakindent
  endif
endfunction

" Disable copy-friendly linebreak options
function! copy_linebreak#Disable() abort
  setlocal linebreak linebreak?
  if exists('s:showbreak_save')
    let &showbreak = s:showbreak_save
    unlet s:showbreak_save
  endif
  if exists('+breakindent')
    setlocal breakindent<
  endif
endfunction

" Toggle copy-friendly linebreak options, using the current setting for the
" 'linebreak' option as the pivot
function! copy_linebreak#Toggle() abort
  if &linebreak
    call copy_linebreak#Enable()
  else
    call copy_linebreak#Disable()
  endif
endfunction