In doubt I always check key sequences in gvim as it avoids side effects from the terminal.
What I observe is that it does the same thing as <c-right>
and it seems to go the beginning of the next word, as with w
.
If when you type :map
+ CTRL-V + CTRL+Shift+Right, it doesn't show :map <C-S-Right>
, then you'll have to play (or struggle...) with your terminal configuration. I won't be able to help more on this topic as I gave up the fight: I've been using gvim for two 2 decades now, mainly for this reason.
You should be able to find several Q/A and resources here, on SO, and in vim mailing lists...
Ctrl+Shift+Right
is supposed to do anything by default. Either you have a mapping on this key sequence (use:verbose map <C-S-Right>
to see the mapping and which script created it) or this is a keycode issue where your terminal emulator understands the keycode of<C-S-Right>
as another one which happens to delete text.