:set operatorfunc=MyFunc<CR>g@
Vim lets you define custom operators that behave like built-in ones (d, c, y) — they wait for a motion or text object, then act on the selected region.
:set operatorfunc=MyFunc<CR>g@{motion}
Vim's operatorfunc and g@ let you define custom operators that accept any motion or text object, just like built-in operators d, c, and y.
>gv
Normally, pressing > in visual mode indents the selection but exits visual mode, requiring you to press gv to reselect.
:nnoremap <leader>d "=strftime('%Y-%m-%d')<CR>p
The expression register (=) evaluates Vimscript expressions and uses the result as register content.
:nnoremap <leader>x :norm! @a<CR>
Once you've perfected a macro by recording and testing it, you can make it permanent by converting it into a mapping in your vimrc.
:verbose nmap <leader>
The :verbose prefix on mapping commands shows not just the mapping definition but also the file and line number where it was defined.
:cnoremap <C-a> <Home>
Vim's command line has limited navigation by default.
:nnoremap ]b :bnext<CR>
Mapping ]b and [b to :bnext and :bprev creates an intuitive bracket-style navigation for buffers, matching the convention used by unimpaired.
buffers-windows #buffers-windows #navigation #mapping #buffers
nnoremap <leader>b :b#<CR>
Map b to :b# which switches to the alternate buffer.
:verbose map <key>
Use :verbose map to see the mapping definition and the file/line where it was set.
nnoremap <F5> :!python %<CR>
Map function keys with their notation.
nnoremap <leader>s :w<CR>
Use nnoremap for non-recursive normal mode mappings.
