Question

I am using vim editor. I learned that

shift (and pressing) ~ 

converts upper case letters to lower case and vice versa, and then moves the cursor to the right. Any way to make the cursor move left instead, so pressing ~ repeatedly converts from right to left?

Answer 1

nnoremap <F2> h<S-~>h

does something similar. Has a little problem with the last character in a line.

But really, that isn’t that often used function. Most people just select the word (viw) and upper/lowercase it with gU or gu.