If you're using vi you can do something like this: nnoremap <c-u> viwU To use it just type the word in lowercase, hover your cursor over any letter in the wor

If you're using vi you can do something like this: nnoremap <c-u> viwU To use it just type the word in lowercase, hover your cursor over any letter in the word, and press Ctrl-U to highlight it.