Navigation in insert mode with soft wrap and showbreak

Question

I’m having trouble with hjkl movement in insert mode.

The issue is that I have changed hjkl movement to move by display line. I have 'wrap' on. The cursor should normally move line by line, not move display line by display line.

With my vimrc, when Ctrl is pressed along with up or down movement, it should move through display line by display line, but somehow it kept inserting a space and moving through display line (especially up movement).

Yesterday, I tried with only the Ctrl + movement key in insert mode, and it worked fine, but it failed to work properly when other scripts are included. I can't figure out how to solve it.

:set wrap linebreak nolist
:set showbreak=…

vmap j gj
vmap k gk
nmap j gj
nmap k gk

inoremap <C-h> <Left>
inoremap <C-j> <C-o>gj
inoremap <C-k> <C-o>gk 
inoremap <C-l> <Right>
cnoremap <C-h> <Left>
cnoremap <C-j> <Down>
cnoremap <C-k> <Up>
cnoremap <C-l> <Right>

Answer 1

The problem is that you have a trailing space in your inoremap line in your vimrc.

That trailing space becomes part of the mapping replacement, so every time you type <C-h>, not only will Vim execute the <C-o>gk part, which will move up one line, it will also produce a <Space> in Insert mode.

I can actually even see it in your paste in your question...

If you enable :set list while looking at your vimrc, this is what you'll see:

inoremap <C-h> <Left>$
inoremap <C-j> <C-o>gj$
inoremap <C-k> <C-o>gk $
inoremap <C-l> <Right>$

See the trailing space there?

Also if you use :imap or :imap <C-k> to inspect the definition of the mapping, the trailing space will be displayed as <Space>, which will also make it obvious:

:imap <C-h>
i  <C-K>         <C-O>gk<Space>

Simply remove the trailing space from your mapping definition and it will work as expected.