vimrc: add :W command and au set noreadonly

vimrc

@@ -121,7 +121,7 @@ else
    set t_Co=256
    let base16colorspace=256
    set termguicolors
-endi
+endif
 
 " OS-specific settings
 if has('gui_running')
@@ -130,8 +130,8 @@ if has('gui_running')
    else
       set guifont=PxPlus\ IBM\ EGA8\ 12
       set linespace=-2
-   endi
-endi
+   endif
+endif
 
 if has('win32')
    " windows sucks
@@ -164,7 +164,7 @@ else
 
    " swap files
    set directory=$HOME/.vim/temp//
-endi
+endif
 
 " set up colors and file types
 colorscheme base16-porple
@@ -188,7 +188,7 @@ ruby<<
       $curbuf.line += " " + "-" * rep + "|"
    end
 .
-endf
+endfu
 
 " File size
 fu! FileSize()
@@ -197,8 +197,8 @@ fu! FileSize()
       return ""
    else
       return fs
-   endi
-endf
+   endif
+endfu
 
 " Strip whitespace on buffer write
 fu! s:StripWhite()
@@ -210,20 +210,23 @@ ruby<<
       end
    end
 .
-endf
+endfu
 
 " Close empty buffers
 fu! s:CloseEmptyBuffers()
    let bufs = filter(range(1, bufnr('$')), 'buflisted(v:val) && empty(bufname(v:val)) && bufwinnr(v:val) < 0 && !getbufvar(v:val, "&modified")')
    if !empty(bufs)
       execute 'bdelete' join(bufs, ' ')
-   endi
-endf
+   endif
+endfu
 
 " Commands -------------------------------------------------------------------|
 
 " Find
-com! -nargs=+ -complete=file -bar Gr silent! grep! "<Args>"|cwindow
+com -nargs=+ -complete=file -bar Gr silent! grep! "<Args>"|cwindow
+
+" Write (sudo)
+com W execute 'w !sudo tee > /dev/null %' | edit!
 
 " Autocommands ---------------------------------------------------------------|
 
@@ -245,13 +248,18 @@ au FileType edif set syntax=conf
 " disable most ftplugins
 au BufReadPre * let b:did_ftplugin=1
 
-" au VimEnter * nested :TagbarOpen
+" enable tagbar
+"au VimEnter * nested :TagbarOpen
 
 " rust.vim sets Cargo.toml to use filetype `cfg` even though it shouldn't, to
 " fix this we simply do the same thing before it has a chance to
-au BufRead,BufNewFile Cargo.toml if &filetype == "" | set filetype=toml | endi
+au BufRead,BufNewFile Cargo.toml if &filetype == "" | set filetype=toml | endif
 
-"au VimEnter * vs
+" vertical split on enter
+"au VimEnter * vsplit
+
+" suppress readonly warnings
+au BufEnter * set noreadonly
 
 " Mapping --------------------------------------------------------------------|