golang .vimrc

filetype off
filetype plugin indent off

" Golang Vim
set runtimepath+=$GOROOT/misc/vim
" Golang gocode
exe "set runtimepath+=".globpath($GOPATH, "src/github.com/nsf/gocode/vim")

" NeoBundle
if has('vim_starting')
  set runtimepath+=~/.vim/bundle/neobundle.vim/
endif
call neobundle#rc(expand('~/.vim/bundle/'))
" Let NeoBundle manage NeoBundle
NeoBundleFetch 'Shougo/neobundle.vim'

" TAB Setting
set tabstop=4
set shiftwidth=4
set softtabstop=4

filetype plugin indent on
syntax on

" Ex mode Tab Setting
function! s:SID_PREFIX()
  return matchstr(expand('<sfile>'), '<SNR>\d\+_\zeSID_PREFIX$')
endfunction

function! s:GetBufByte()
  let byte = line2byte(line('$') + 1)
  if byte == -1
    return 0
  else
    return byte - 1
  endif
endfunction

function! s:my_tabline() 
  let s = ''
  for i in range(1, tabpagenr('$'))
    let bufnrs = tabpagebuflist(i)
    let bufnr = bufnrs[tabpagewinnr(i) - 1]
    let no = i  " display 0-origin tabpagenr.
    let mod = getbufvar(bufnr, '&modified') ? '!' : ' '
    let title = fnamemodify(bufname(bufnr), ':t')
    let title = '[' . title . ']'
    let s .= '%'.i.'T'
    let s .= '%#' . (i == tabpagenr() ?'TabLineSel' : 'TabLine') . '#'
    let s .= no . ':' . title
    let s .= mod
    let s .= '%#TabLineFill# '
  endfor
  let s .= '%#TabLineFill#%T%=%#TabLine#'
  return s
endfunction

let &tabline = '%!'.  s:SID_PREFIX() .  'my_tabline()'
set showtabline=2 

nnoremap [Tag] <Nop>
nmap t [Tag]
for n in range(1, 9)
  execute 'nnoremap <silent> [Tag]'.n ':<C-u>tabnext'.n.'<CR>'
endfor

map <silent> [Tag]c :tablast <bar> tabnew<CR>
map <silent> [Tag]x :tabclose<CR>
map <silent> [Tag]n :tabnext<CR>
map <silent> [Tag]p :tabprevious<CR>

" VimStart with Ex mode
autocmd VimEnter * nested if @% == '' && s:GetBufByte() == 0 | Ex | endif

" Golang Fmt
auto BufWritePre *.go Fmt

filetype plugin on
NeoBundleCheck

NeoBundle 'Shougo/neocomplcache'

" Disable AutoComplPop.
let g:acp_enableAtStartup = 0
" Use neocomplcache.
let g:neocomplcache_enable_at_startup = 1
" Use smartcase.
let g:neocomplcache_enable_smart_case = 1
" Set minimum syntax keyword length.
let g:neocomplcache_min_syntax_length = 3
let g:neocomplcache_lock_buffer_name_pattern = '\*ku\*'

" Define dictionary.
let g:neocomplcache_dictionary_filetype_lists = {
    \ 'default' : ''
\ }

" Plugin key-mappings.
inoremap <expr><C-g>     neocomplcache#undo_completion()
inoremap <expr><C-l>     neocomplcache#complete_common_string()

" 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>"
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()

if !exists('g:neocomplcache_omni_patterns')
  let g:neocomplcache_omni_patterns = {}
endif
let g:neocomplcache_omni_patterns.go = '\h\w*\.\?'

hi Pmenu ctermbg=7
hi PmenuSel ctermbg=4
hi PMenuSbar ctermbg=8