+"xterm mouse with middleclick paste
+nnoremap <MiddleMouse> i<MiddleMouse>
+vnoremap <MiddleMouse> s<MiddleMouse>
+
+" messages and info {{{1
+set showcmd " Show (partial) command in status line.
+set ruler " show the cursor position all the time
+set confirm " Ask what to do when closing unsaved documents
+
+" editing text {{{1
+set backspace=indent,eol,start " allow backspacing over everything in insert mode
+
+set showmatch " Show matching brackets.
+
+set nojoinspaces " don't use two spaces after '.' when joining a line
+set formatoptions+=j " remove comment leader when joining lines
+
+set nrformats=hex " number formats recognized for CTRL-A and CTRL-X commands
+
+" whether to use a popup menu for Insert mode completion
+set completeopt=longest,menuone,preview
+
+" Indent if we're at the beginning of a line. Else, do completion.
+function! InsertTabWrapper()
+ let col = col('.') - 1
+ if !col || getline('.')[col - 1] !~ '\k'
+ return "\<Tab>"
+ else
+ return "\<C-N>"
+endif
+endfunction
+inoremap <Tab> <C-R>=InsertTabWrapper()<CR>
+inoremap <S-Tab> <C-P>
+
+" fix legacy vi inconsistency
+map Y y$
+
+" allow repeat operator on visual
+vnoremap . :normal .<CR>
+
+" add line without changing position or leaving mode
+map <Leader>o :set paste<CR>m`o<ESC>``:set nopaste<CR>
+map <Leader>O :set paste<CR>m`O<ESC>``:set nopaste<CR>
+
+" Don't use Ex mode, use Q for formatting
+map Q gq
+
+" allow undoing in insert-mode
+inoremap <C-U> <C-G>u<C-U>
+inoremap <C-W> <C-G>u<C-W>
+
+" tabs and indent {{{1
+set shiftwidth=4 " number of spaces used for each step of (auto)indent
+set smarttab " a <Tab> in an indent inserts 'shiftwidth' spaces
+set softtabstop=4 " if non-zero, number of spaces to insert for a <Tab>
+set shiftround " round to 'shiftwidth' for "<<" and ">>"
+set expandtab " expand <Tab> to spaces in Insert mode
+
+set cindent " use smart C indenting (see :h C-indenting)
+set cinoptions=l1,c4,(0,U1,w1,m1,j1,J1
+
+set pastetoggle=<F11> " key sequence to toggle paste mode
+
+nmap <Leader>b :set expandtab tabstop=4 shiftwidth=4 softtabstop=4<CR>
+nmap <Leader>B :set expandtab tabstop=8 shiftwidth=8 softtabstop=4<CR>
+nmap <Leader>M :set noexpandtab tabstop=8 softtabstop=4 shiftwidth=4<CR>
+nmap <Leader>m :set expandtab tabstop=2 shiftwidth=2 softtabstop=2<CR>
+
+" folding {{{1
+set foldmethod=marker " folding type
+set foldlevelstart=99 " value for 'foldlevel' when starting to edit a file
+
+" space will toggle current fold in normal mode
+nnoremap <silent> <Space> @=(foldlevel('.')?'za':"\<Space>")<CR>
+" create folds around visual selection
+vnoremap <Space> zf
+
+" save and restore folds
+autocmd BufWinLeave *.* mkview
+autocmd BufWinEnter *.* silent loadview
+
+" reading and writing files {{{1
+set writebackup " write a backup file before overwriting a file
+set backup " keep a backup after owerwriting a file
+set backupdir=$HOME/.vim/backupdir
+
+set undofile " persistent undo history
+set undodir=$HOME/.vim/backupdir
+
+set autowrite " automatically write a file when leaving a modified buffer
+
+" command line editing {{{1
+set history=500 " how many command lines are remembered
+set wildmode=longest:full " specifies how command line completion works
+set wildmenu " command-line completion shows a list of matches
+
+" various {{{1
+set virtualedit=block " let cursor move past last char in <C-V> mode
+set viminfo='100,<50,s10,h,n~/.vim/viminfo " viminfo defaults but save file in .vim
+
+" plugins {{{1
+" airline {{{2
+let g:airline_detect_whitespace=2
+let g:airline_whitespace_symbol = 'Ξ'
+let g:airline_linecolumn_prefix = '␊ '
+let g:airline_left_sep = '▶'
+let g:airline_right_sep = '◀'
+let g:airline#extensions#tabline#enabled = 1
+
+" Gundo {{{2
+nnoremap <F7> :GundoToggle<CR>
+" fugitive {{{2
+nmap <silent> <leader>dd :tab split \| Gdiff \| wincmd h<CR>
+
+" NERDTree {{{2
+" open/close NERDTree with \e
+nmap <Leader>e :NERDTreeToggle<CR>
+nmap <F6> :NERDTreeToggle<CR>
+" <space> to open files/dirs
+let NERDTreeMapActivateNode='<space>'
+" open NERDTree if no files were selected
+autocmd vimenter * if !argc() | NERDTree | endif
+" close vim if only NERDTree is open
+autocmd bufenter * if (winnr("$") == 1 && exists("b:NERDTreeType") && b:NERDTreeType == "primary") | q | endif
+
+" synastic {{{2
+let g:syntastic_enable_highlighting = 0
+let g:syntastic_error_symbol='E'
+let g:syntastic_style_error_symbol='S'
+let g:syntastic_warning_symbol='W'
+let g:syntastic_style_warning_symbol='S'
+let g:syntastic_always_populate_loc_list=1
+nmap <silent> <leader>y :SyntasticCheck<cr>
+
+if ! &diff
+ let g:syntastic_check_on_open=1
+endif
+
+" tagbar {{{2
+map <F5> :TagbarToggle<cr>
+let g:tagbar_sort = 0
+let g:tagbar_compact = 1
+let g:tagbar_autoshowtag = 1
+let g:tagbar_width = 25
+let g:tagbar_iconchars = ['+', '-']
+
+" YouCompleteMe {{{2
+let g:ycm_extra_conf_globlist = ['/mnt/data/src/*']
+
+" functions {{{1