On Thursday, November 6, 2014 2:53:02 PM UTC-6, Salman Halim wrote:
> Hi,
>
> I was wondering if it was possible to switch to relative line numbers once
> I'm in operator-pending mode and then switch back when done. For example, say
> I have regular line numbers turned on and I hit 'c' in normal mode on line
> 24. The numbering changes to relative and goes back to regular numbers after
> the rest of the command is executed.
>
> I couldn't find an autocommand, but was hoping someone else had already come
> up with an ingenious way to address this.
>
I did not find any autocmd for it, but I use an expression mapping returning an
empty string in normal, visual, and operator-pending modes to accomplish the
task:
if exists('+relativenumber')
nnoremap <expr> <C-Space> CycleLNum()
xnoremap <expr> <C-Space> CycleLNum()
onoremap <expr> <C-Space> CycleLNum()
" function to cycle between normal, relative, and no line numbering
func! CycleLNum()
if &l:rnu && !&l:nu
setlocal nu
elseif &l:rnu && &l:nu
setlocal nornu
elseif &l:nu && !&l:rnu
setlocal nonu
else
setlocal rnu
endif
" sometimes (like in op-pending mode) the redraw doesn't happen
" automatically
redraw
" do nothing, even in op-pending mode
return ""
endfunc
endif
Thus when I hit <C-Space> in any of these modes, nothing happens, which allows
me to continue with my operation, but the line numbering changes as a side
effect.
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