This function will make it possible to use ^A on the next digit, even one not sitting on the same line.
<leader>^A will act backwards.
The same goes for ^X and <leader>^X!
Enhanced Ctrl+A/X function
function! AddSubtract(operation, direction)
if &nrformats =~ 'alpha'
let pattern = '[[:alpha:][:digit:]]'
else
let pattern = '[[:digit:]]'
endif
if 'b' == a:direction
call search(pattern, 'bcw')
else
call search(pattern, 'cw')
endif
if 'a' == a:operation
execute 'normal! ' . v:count1 . "\<c-a>"
silent! call
\ repeat#set(":\<c-u>call AddSubtract('a', '" .a:direction. "')\<cr>")
else
execute 'normal! ' . v:count1 . "\<c-x>"
silent! call
\ repeat#set(":\<c-u>call AddSubtract('s', '" .a:direction. "')\<cr>")
endif
endfunction
nmap <silent> <c-a> :<c-u>call AddSubtract('a', 'f')<cr>
nmap <silent> <leader><c-a> :<c-u>call AddSubtract('a', 'b')<cr>
nmap <silent> <c-x> :<c-u>call AddSubtract('s', 'f')<cr>
nmap <silent> <leader><c-x> :<c-u>call AddSubtract('s', 'b')<cr>