" unique highlighting for leading spaces and in-line spaces
" NOTE: this leaves tabs and other special whitespace untouched intentionally
-autocmd VimEnter,ColorScheme * highlight Space ctermfg=Grey guifg=#686868
-autocmd VimEnter,ColorScheme * highlight link SpaceLeading NonText
-autocmd VimEnter,WinNew * match Space / /
-autocmd VimEnter,WinNew * 2match SpaceLeading /\(^ \+\)\|\( \+$\)/
+autocmd VimEnter,ColorScheme * highlight SpaceInner ctermfg=Grey guifg=#686868
+autocmd VimEnter,ColorScheme * highlight link SpaceOuter NonText
+autocmd VimEnter,WinNew * match SpaceInner / /
+autocmd VimEnter,WinNew * 2match SpaceOuter /\(^ \+\)\|\( \+$\)/
" always show statusline
set laststatus=2
" always save undo file for all file buffers
autocmd BufRead * set undofile
+" explicitly use modeline, even on systems where it's disabled by system vimrc
+autocmd BufRead set modeline
+" should be default disabled but just in case
+set nomodelineexpr
+
"" indent
" always use shiftwidth instead of tabsize
set smarttab