.vimrc

" enable syntax highlighting
syntax on

" Highlight redundant whitespaces and tabs.
"highlight RedundantSpaces ctermbg=red guibg=red
"match RedundantSpaces /\s\+$\| \+\ze\t\|\t/

" use 4 spaces instead of tabs
set tabstop=2
set expandtab
set shiftwidth=2
set softtabstop=2

" always show ^M in DOS files
set fileformats=unix

" my terminal is white on black
set background=dark
highlight Comment ctermbg=blue
highlight Comment ctermfg=white

" always show line and col number and the current command, set title
set ruler
set showcmd
set title titlestring=vim\ %f

" caseinsensitive incremental search
set ignorecase
set incsearch

" Show matching brackets
set showmatch

" disable any autoindenting which could mess with your mouse pastes (and your head)
" (not useing 'set paste' here to keep fancy stuff like tab completion working)
set nocindent
set nosmartindent
set noautoindent
set indentexpr=
filetype indent on
"filetype plugin indent off

" Get rid of folding
set nofoldenable

" This function determines, wether we are on the start of the line text (then tab indents) or
" if we want to try autocompletion
func! InsertTabWrapper()
    "let col = col('.') - 1
    "if !col || getline('.')[col - 1] !~ '\k'
    "    return \<tab>
    "else
    "    return \<c-p>
    "endif
return "\<tab>"
endfunction

" Remap the tab key to select action with InsertTabWrapper
inoremap <tab> <c-r>=InsertTabWrapper()<cr>
filetype on           " Enable filetype detection
filetype plugin on

" function to cleanup a text -> mapped to F5
fun CleanText()
    let curcol = col(".")
    let curline = line(".")
    exe ":retab"
    exe ":%s/^M$//ge"
    exe ":%s/^M/ /ge"
    exe ":%s/ \\+$//e"
    call cursor(curline, curcol)
endfun
map <F5> :call CleanText()<CR>

au BufNewFile,BufRead *.i set filetype=swig

" REQUIRED. This makes vim invoke Latex-Suite when you open a tex file.
filetype plugin on
"
" IMPORTANT: win32 users will need to have 'shellslash' set so that latex
" can be called correctly.
set shellslash

" IMPORTANT: grep will sometimes skip displaying the file name if you
" search in a singe file. This will confuse Latex-Suite. Set your grep
" program to always generate a file-name.
set grepprg=grep\ -nH\ $*

if (&tildeop)
  nmap gc guiw~l
  vmap gc gu~l
else
  nmap gc guiw~h
  vmap gc gu~h
endif

" Toggle function for spelling
" Read http://goo.gl/dE6PR before using!
func! ToggleSpl( lang )
if &l:spl =~ '\v(^|,)\V'.escape(a:lang,'\').'\v(,|$)'
"Alternatively, since 'spl' may not contain a comma this also
"works:
"if index(split(&l:spl,','),a:lang) != -1
exec 'setl spl-='.a:lang
else
exec 'setl spl+='.a:lang
endif
:setl spell spl
endfun

" Toggle german spelling
map <F3> :call ToggleSpl('de')<cr>
" Toggle english spelling
map <F4> :call ToggleSpl('en')<cr>



" Enable proper pasting, see http://goo.gl/YauET
nnoremap <F2> :set invpaste paste?<CR>
set pastetoggle=<F2>
set showmode

" Enable 256 colors
set t_Co=256

" ruby autocompletion
autocmd FileType ruby,eruby set omnifunc=rubycomplete#Complete
autocmd FileType ruby,eruby let g:rubycomplete_buffer_loading = 1
autocmd FileType ruby,eruby let g:rubycomplete_rails = 1
autocmd FileType ruby,eruby let g:rubycomplete_classes_in_global = 1
let g:SuperTabDefaultCompletionType = "<C-X><C-O>"
"improve autocomplete menu color
highlight Pmenu ctermbg=238 gui=bold

" infect with pathogen, see https://github.com/tpope/vim-pathogen
" execute pathogen#infect()

" map Ctrl+c to toggle nerdtree
" map <C-c> :NERDTreeToggle<CR>

" respect dos line endings. when saving, use the same format. on mixed files,
" unix takes precedence
set ffs=dos,unix

" swap files (.swp) in a common location
" // means use the file's full path
set dir=~/.vim/_swap//

" backup files (~) in a common location if possible
set backup
set backupdir=~/.vim/_backup/,~/tmp,.

" turn on undo files, put them in a common location
"set undofile
"set undodir=~/.vim/_undo/

" set UTF-8 encoding
set encoding=utf-8