vim/defaults.vim

" Use Vim settings, rather than Vi settings (much better!).
" This must be first, because it changes other options as a side effect.
" Avoid side effects when it was already reset.
if &compatible
    set nocompatible
endif

" When the +eval feature is missing, the set command above will be skipped.
" Use a trick to reset compatible only when the +eval feature is missing.
silent! while 0
    set nocompatible
silent! endwhile

" Allow backspacing over everything in insert mode.
set backspace=indent,eol,start

set history=200     " keep 200 lines of command line history
set ruler           " show the cursor position all the time
set showcmd         " display incomplete commands
set wildmenu        " display completion matches in a status line

set ttimeout        " time out for key codes
set ttimeoutlen=100 " wait up to 100ms after Esc for special key

" Show @@@ in the last line if it is truncated.
set display=truncate

" Show a few lines of context around the cursor.  Note that this makes the
" text scroll if you mouse-click near the start or end of the window.
set scrolloff=5

" Do incremental searching when it's possible to timeout.
if has('reltime')
    set incsearch
endif

" Do not recognize octal numbers for Ctrl-A and Ctrl-X, most users find it
" confusing.
set nrformats-=octal

" For Win32 GUI: remove 't' flag from 'guioptions': no tearoff menu entries.
if has('win32')
    set guioptions-=t
endif

" Don't use Ex mode, use Q for formatting.
" Revert with ":unmap Q".
map Q gq

" CTRL-U in insert mode deletes a lot.  Use CTRL-G u to first break undo,
" so that you can undo CTRL-U after inserting a line break.
" Revert with ":iunmap <C-U>".
inoremap <C-U> <C-G>u<C-U>

" In many terminal emulators the mouse works just fine.  By enabling it you
" can position the cursor, Visually select and scroll with the mouse.
" Only xterm can grab the mouse events when using the shift key, for other
" terminals use ":", select text and press Esc.
if has('mouse')
    if &term =~ 'xterm'
        set mouse=a
    else
        set mouse=nvi
    endif
endif

" Switch syntax highlighting on when the terminal has colors or when using the
" GUI (which always has colors).
if &t_Co > 2 || has("gui_running")
    " Revert with ":syntax off".
    syntax on

    " I like highlighting strings inside C comments.
    " Revert with ":unlet c_comment_strings".
    let c_comment_strings=1
endif

" Only do this part when Vim was compiled with the +eval feature.
if 1
    " Enable file type detection.
    " Use the default filetype settings, so that mail gets 'tw' set to 72,
    " 'cindent' is on in C files, etc.
    " Also load indent files, to automatically do language-dependent indenting.
    " Revert with ":filetype off".
    filetype plugin indent on

    " Put these in an autocmd group, so that you can revert them with:
    " ":augroup vimStartup | au! | augroup END"
    augroup vimStartup
        au!

        " When editing a file, always jump to the last known cursor position.
        " Don't do it when the position is invalid, when inside an event handler
        " (happens when dropping a file on gvim) and for a commit message (it's
        " likely a different one than last time).
        autocmd BufReadPost *
        \ if line("'\"") >= 1 && line("'\"") <= line("$") && &ft !~# 'commit'
        \ |   exe "normal! g`\""
        \ | endif

    augroup END

endif


if has('langmap') && exists('+langremap')
    " Prevent that the langmap option applies to characters that result from a
    " mapping.  If set (default), this may break plugins (but it's backward
    " compatible).
    set nolangremap
endif