My vimrc

.vimrc

" Pathogen
execute pathogen#infect()

" Basics
syntax on
filetype plugin indent on
set number
let mapleader = ","
set guifont=Menlo\ Regular:h13

" NerdTree Config
autocmd vimenter * if !argc() | NERDTree | endif
autocmd bufenter * if (winnr("$") == 1 && exists("b:NERDTreeType") && b:NERDTreeType == "primary") | q | endif

" Tabs
set smartindent
set tabstop=2
set shiftwidth=2
set expandtab

" Theme
set background=dark
colorscheme solarized

" Auto Completion
let g:neocomplcache_enable_at_startup = 1
let g:neocomplcache_enable_smart_case = 1
let g:neocomplcache_min_syntax_length = 3
let g:neocomplcache_lock_buffer_name_pattern = '\*ku\*'
let g:neocomplcache_dictionary_filetype_lists = {
    \ 'default' : '',
    \ 'vimshell' : $HOME.'/.vimshell_hist',
    \ 'scheme' : $HOME.'/.gosh_completions'
        \ }
if !exists('g:neocomplcache_keyword_patterns')
    let g:neocomplcache_keyword_patterns = {}
endif
let g:neocomplcache_keyword_patterns['default'] = '\h\w*'

" Recommended key-mappings.
" <CR>: close popup and save indent.
inoremap <silent> <CR> <C-r>=<SID>my_cr_function()<CR>
function! s:my_cr_function()
  return neocomplcache#smart_close_popup() . "\<CR>"
  " For no inserting <CR> key.
  "return pumvisible() ? neocomplcache#close_popup() : "\<CR>"
endfunction

" <TAB>: completion.
inoremap <expr><TAB>  pumvisible() ? "\<C-n>" : "\<TAB>"
"
" <C-h>, <BS>: close popup and delete backword char.
inoremap <expr><C-h> neocomplcache#smart_close_popup()."\<C-h>"
inoremap <expr><BS> neocomplcache#smart_close_popup()."\<C-h>"
inoremap <expr><C-y>  neocomplcache#close_popup()
inoremap <expr><C-e>  neocomplcache#cancel_popup()

" Enable omni completion.
autocmd FileType css setlocal omnifunc=csscomplete#CompleteCSS
autocmd FileType html,markdown setlocal omnifunc=htmlcomplete#CompleteTags
autocmd FileType javascript setlocal omnifunc=javascriptcomplete#CompleteJS
autocmd FileType python setlocal omnifunc=pythoncomplete#Complete
autocmd FileType xml setlocal omnifunc=xmlcomplete#CompleteTags

" Enable heavy omni completion.
if !exists('g:neocomplcache_omni_patterns')
  let g:neocomplcache_omni_patterns = {}
endif
let g:neocomplcache_omni_patterns.php = '[^. \t]->\h\w*\|\h\w*::'
let g:neocomplcache_omni_patterns.c = '[^.[:digit:] *\t]\%(\.\|->\)'
let g:neocomplcache_omni_patterns.cpp = '[^.[:digit:] *\t]\%(\.\|->\)\|\h\w*::'

" For perlomni.vim setting.
" https://github.com/c9s/perlomni.vim
let g:neocomplcache_omni_patterns.perl = '\h\w*->\h\w*\|\h\w*::'