[change between tab and space as indent] config for vim #vim #vimrc

.vimrc

set tabstop=2     " Size of a hard tabstop (ts).
set shiftwidth=2  " Size of an indentation (sw).
set expandtab     " Always uses spaces instead of tab characters (et).
set softtabstop=0 " Number of spaces a <Tab> counts for. When 0, featuer is off (sts).
set autoindent    " Copy indent from current line when starting a new line.
set smarttab      " Inserts blanks on a <Tab> key (as per sw, ts and sts).
set number		  " show number


function! UseTabs()
  set tabstop=4     " Size of a hard tabstop (ts).
  set shiftwidth=4  " Size of an indentation (sw).
  set noexpandtab   " Always uses tabs instead of space characters (noet).
  set autoindent    " Copy indent from current line when starting a new line (ai).
endfunction

function! UseSpaces()
  set tabstop=2     " Size of a hard tabstop (ts).
  set shiftwidth=2  " Size of an indentation (sw).
  set expandtab     " Always uses spaces instead of tab characters (et).
  set softtabstop=0 " Number of spaces a <Tab> counts for. When 0, featuer is off (sts).
  set autoindent    " Copy indent from current line when starting a new line.
  set smarttab      " Inserts blanks on a <Tab> key (as per sw, ts and sts).
endfunction

au! BufWrite,FileWritePre *.module,*.py call UseSpaces()


" disable arrow keys and echo out a message instead
noremap <up>    :echom 'stop being stupid'<CR>
noremap <down>  :echom 'stop being stupid'<CR>
noremap <left>  :echom 'stop being stupid'<CR>
noremap <right> :echom 'stop being stupid'<CR>
inoremap <up>    <ESC>:echom 'stop being stupid'<CR>
inoremap <down>  <ESC>:echom 'stop being stupid'<CR>
inoremap <right> <ESC>:echom 'stop being stupid'<CR>
inoremap <left>  <ESC>:echom 'stop being stupid'<CR>