.root-vimrc

" A slimmed-down version of the usual .vimrc for root

" No vi compatibility
set nocompatible

"" Normal vimrc stuff:

" No text wrapping
set nowrap

" Show current command
set showcmd

" Show line and column
set ruler

" Highlight found terms
set hlsearch

" Do not jump back to matching parens
set noshowmatch

" Always display the file name at the bottom
set modeline
set ls=2

" Remove the buffer when a tab is closed
set nohidden

" Re-read a file if it's been edited outside vim
set autoread

" Prefer Unix file endings to Windows ones.
" (This is a default on a Linux system but not on a Windows one)
set fileformats=unix,dos

" Split down or to the right
set splitright
set splitbelow

" Show line numbers
set number
" Numbers take up four columns
set numberwidth=4

" Tabs are four spaces wide, and aren't expanded into spaces
set tabstop=4
set shiftwidth=4
set noexpandtab

" Don't start with spell checking
set nospell

" Autocomple commands and such
set wildmenu
set wildmode=longest,list

" Default completion sources are .,w,b,u,t,i
set complete=.,w,b,t,i
" Complete options (disable preview scratch window)
set completeopt=menu,menuone,longest

" Code folding based on syntax
set foldmethod=syntax
set foldlevelstart=99

" Mouse support
set mouse=a

" Backspace default behavior
set backspace=2

" .tex files are LaTeX by default
let g:tex_flavor = "latex"

" File type detection and syntax highlighting
filetype on
syntax on

" No fancy indentation
set nocindent
set noautoindent
set smartindent

" I find the LaTeX auto indenting annoying
au BufRead,BufNewFile *.tex set inde=

" *.md is Markdown, not modula 2
au BufRead,BufNewFile *.md set filetype=markdown

" 8 tabs for fstab are 8 spaces
au BufRead,BufNewFile fstab setlocal tabstop=8

colorscheme torte

" Color preferences
highlight Cursor ctermbg=NONE ctermfg=NONE cterm=reverse
highlight iCursor ctermbg=NONE ctermfg=NONE cterm=reverse
highlight Search ctermbg=blue ctermfg=white
highlight Pmenu ctermbg=white ctermfg=black
highlight PmenuSel ctermbg=blue ctermfg=white cterm=bold
highlight PmenuSbar ctermbg=white
highlight PmenuThumb ctermfg=DarkGray
highlight ModeMsg cterm=NONE
highlight Visual ctermbg=blue ctermfg=white cterm=NONE
highlight Folded ctermbg=black ctermfg=white
highlight MatchParen ctermfg=NONE ctermbg=blue
highlight LineNr ctermfg=gray
highlight NonText ctermfg=gray

" Key mapping and functions

function! ToggleSpell()
	set spell!
	if &spell
		echo "Spell check enabled"
	else
		echo "Spell check disabled"
	endif
endfunction

function! ToggleSpellSuggest()
	if match(&complete, "kspell") < 0
		set spell " Spell check needs to be enabled
		set complete+=kspell
		echo "Spelling suggestions enabled"
	else
		set complete-=kspell
		echo "Spelling suggestions disabled"
	endif
endfunction

function! RemoveTrailingWhitespace()
	let l:line = line('.')
	let l:column = col('.')
	%s/\s\+$//ge
	call cursor(l:line, l:column)
	echo "Removed trailing whitespace"
endfunction

" Reload settings
noremap <leader>r :so ~/.vimrc<CR>

" Enable and disable spell check with a key press
noremap <leader>sc :call ToggleSpell()<CR>
" Enable and disable suggestions from the spelling dictionary with a key press
noremap <leader>ss :call ToggleSpellSuggest()<CR>
" Trim trailing whitespace
noremap <leader>t :call RemoveTrailingWhitespace()<CR>

" Make Y consistent with C, D, etc.
noremap Y y$
" Space shuts off search highlighting
noremap <Space> :noh<CR>
" Make the enter key do something useful
noremap <CR> o<Esc>
noremap <S-CR> O<Esc>

"--------------------
" Function: Open tag under cursor in new tab
" Source:   http://stackoverflow.com/questions/563616/vimctags-tips-and-tricks
"--------------------
noremap <C-\> :tab split<CR>:exec("tag ".expand("<cword>"))<CR>

" Insert mode mappings
inoremap <C-j> <Esc>o
inoremap <C-k> <Esc>O
inoremap <C-l> <Esc>>>A
inoremap <C-h> <Esc><<A