Vim Snippets

commenting.vimrc

" Toggle comment line
" Ctrl+/

let s:comment_map = {
            \   "c": '//',
            \   "cpp": '//',
            \   "go": '//',
            \   "java": '//',
            \   "javascript": '//',
            \   "php": '//',
            \   "python": '#',
            \   "ruby": '#',
            \   "vim": '"',
            \ }

function! ToggleComment()
    if has_key(s:comment_map, &filetype)
        let comment_leader = s:comment_map[&filetype]
        if getline('.') =~ '^\s*' . comment_leader . ""
            execute 'silent s/^\(\s*\)' . comment_leader . '\(\s*\)/\1/'
        else
            execute 'silent s/^\(\s*\)/\1' . comment_leader . ' /'
        endif
    else
        echo "Unknown filetype for commenting"
    end
endfunction
nnoremap ^_ :call ToggleComment()<cr>==

line_moving.vimrc

" Moving lines(all modes, moves selected in visual)
" Alt+Shift+up_arrow/Alt+Shift+down_arrow

nnoremap <Esc>[1;4A :m-2<CR>==
nnoremap <Esc>[1;4B :m+<CR>==
inoremap <Esc>[1;4A <Esc>:m-2<CR>==gi
inoremap <Esc>[1;4B <Esc>:m+<CR>==gi
vnoremap <Esc>[1;4A :m '<-2<CR>gv=gv
vnoremap <Esc>[1;4B :m '>+1<CR>gv=gv