diff --git a/plug.vim b/plug.vim
index eeb2ef7..07a454c 100644
--- a/plug.vim
+++ b/plug.vim
@@ -6,33 +6,5 @@ if !filereadable($HOME.'/.vim/autoload/plug.vim')
   echom 'DONE! You may need to :PlugInstall to install listed plugins'
 endif
 
-" plugin
 call plug#begin('~/.vim/plugged')
-  " markdown syntax
-  Plug 'plasticboy/vim-markdown'
-  let g:vim_markdown_new_list_item_indent = 0
-  let g:vim_markdown_math = 1
-
-  " markdown preview
-  Plug 'iamcco/markdown-preview.nvim', {'do': 'cd app & yarn install'}
-  let g:mkdp_auto_start = 0
-  let g:mkdp_auto_close = 0
-  let g:mkdp_preview_options = {
-  \  'katex': {
-  \    'macros': {
-  \      '\s': '\square',
-  \    },
-  \  },
-  \}
-
-  " ale
-  Plug 'dense-analysis/ale'
-  let g:ale_sign_error = '>>'
-  let g:ale_sign_warning = '--'
-  let g:ale_sign_column_always = 1
-  let g:ale_completion_enabled = 1
-  let g:ale_linters = {
-  \   'cpp': ['gcc'],
-  \   'swift': ['sourcekitlsp'],
-  \ }
-call plug#end()
+" call plug#end()
diff --git a/vimrc b/vimrc
index dba4282..108cbfc 100644
--- a/vimrc
+++ b/vimrc
@@ -1,3 +1,5 @@
+let sfile = expand('<sfile>')
+
 " map-leader
 if !exists('mapleader')
   let mapleader='q'
@@ -9,77 +11,39 @@ if !exists('maplocalleader')
   noremap <localleader> <nop>
 endif
 inoremap jk <ESC>
-inoremap Jk <ESC>
 inoremap JK <ESC>
 " file
   " save
   nnoremap <C-S> :w<CR>
   inoremap <C-S> <ESC>:w<CR>
   " copy
-  nnoremap <leader>C :w !pbcopy<CR><CR>
+  nnoremap <leader>C :%y*<CR>
   " tab edit
   nnoremap <leader>e :tabe 
-  nnoremap <leader>vv :tabe $HOME/.vim/sup39/vimrc<CR>
-  nnoremap <leader>vp :tabe $HOME/.vim/sup39/plug.vim<CR>
-  nnoremap <leader>vd :tabe $HOME/.vim/sup39/
+  execute 'nnoremap <leader>vv :tabe '.sfile.'<CR>'
   nnoremap <leader>V :tabe $MYVIMRC<CR>
 " search
 nnoremap / /\v
 nnoremap ? ?\v
-nnoremap <leader>sl :s/\v
-nnoremap <leader>se :.,$s/\v
-nnoremap <leader>ss :%s/\v
 nnoremap <leader>hh :set hlsearch! incsearch!<CR>
 nnoremap <leader>hc :nohlsearch<CR>
-" ale
-nnoremap <leader>r :ALERename<CR>
-nnoremap <leader>n :ALENext<CR>
-nnoremap <leader>p :ALEPrevious<CR>
-nnoremap <leader><space> :ALEHover<CR>
-nnoremap <leader>db :ALEGoToDefinition -tab<CR>
-nnoremap <leader>dm :ALEGoToDefinition<CR>
-nnoremap <leader>dl :ALEDetail<CR>
 " external
 nnoremap <leader>m :w<CR>:!make<CR>
 " syntax
 nnoremap <leader>S :syntax sync fromstart<CR>
 " debug
-nnoremap <leader>x :exe getline('.')<CR>
-nnoremap <leader>X :exe join(getline('.', '$'), "\n")<CR>
 nnoremap <leader>H :echo synIDattr(synID(line("."),col("."),1),"name")<CR>
 
 " filetype-dependent
 augroup sup39_auto
   autocmd!
   " vim
-    " source
     autocmd Filetype vim noremap <buffer> <localleader>s :w<CR>:so %<CR>
-  " c, cpp
-    " macro
-    autocmd Filetype c,cpp noremap <buffer> <localleader>h 
-      \:call setline('.', toupper(substitute(@%, '\.', '_', 'g')))<CR>
-      \yyI#ifndef <C-O>p#define <C-O>o<CR><CR><CR>#endif<ESC>kki
-    autocmd Filetype c,cpp noremap <buffer> <localleader>i 
-      \:call setline('.',
-      \'#include "'.substitute(@%, '\.\zsc\ze\(pp\)\?$', 'h', '').'"')<CR>o
-    " abbr
-    autocmd Filetype c,cpp iabbrev <buffer> #i #include
-    autocmd Filetype c,cpp iabbrev <buffer> #I #include
-  " markdown
-    " plugin
-    autocmd Filetype markdown nnoremap <localleader>p :MarkdownPreview<CR>
-  " COMMON
-    " disable auto comment prefix
-    autocmd Filetype * setlocal formatoptions-=ro
-    " keyword
+  " keyword
     autocmd Filetype javascript,typescript,vue setlocal iskeyword+=$
     autocmd Filetype html,vue setlocal iskeyword+=-
-    " tab
+  " tab
     autocmd FileType make,java,python setlocal noexpandtab
-    " syntax sync
-    autocmd FileType markdown,vue syntax sync fromstart
-    " run
-    autocmd FileType javascript nnoremap <localleader>r :w<CR>:!node %<CR>
 augroup END
 
 " basic
@@ -90,23 +54,19 @@ set backspace=indent,eol,start
 set nocompatible
 set nofoldenable
 set background=dark
+set nostartofline
 
 " indent
-set list listchars=tab:\▸\-
+set list listchars=tab:▸-,trail:･
 set tabstop=2 shiftwidth=2 softtabstop=2 expandtab smarttab
 set autoindent smartindent
-let g:vim_indent_cont = 0
+if !exists('g:vim_indent_cont') | let g:vim_indent_cont = 0 | endif
 
 " search
 set incsearch
 
-" completion
-set completeopt=menu,menuone,noselect,noinsert
-
 " status bar
 set laststatus=2
 set ruler
 set wildmenu
-
-" command
-command Sup39Update !cd $HOME/.vim/sup39 && git pull
+set showcmd " pending command