twiddlecase.vim

twiddlecase.vim

" https://github.com/tangledhelix/dotfiles/blob/master/vim/plugin/twiddlecase.vim

" Toggles between uppercase, lowercase, titlecase. Bind to a mapping, then
" select something and keep hitting the map until you get what you want.
function! TwiddleCase(str)
  if a:str ==# toupper(a:str)
    let result = tolower(a:str)
  elseif a:str ==# tolower(a:str)
    let result = substitute(a:str,'\(\<\w\+\>\)', '\u\1', 'g')
  else
    let result = toupper(a:str)
  endif
  return result
endfunction
" Example mapping
"vnoremap ~ ygv"=TwiddleCase(@")<CR>Pgv